Merge pull request 'feat(rust): mod configuration from the site, and an editor that will not rewrite a float' (#9) from feat/phase-7b-config into edge

Reviewed-on: #9

README.md

@@ -36,17 +36,51 @@ rows here; the website core never learns there is more than one.
 | Surface | Route |
 |---|---|
 | Public | `GET /api/v1/public/rust/servers` — every server and what it last reported |
-| Player | `GET /api/v1/player/rust/servers` — the same, on the authenticated tier |
+| Public | `GET …/servers/:id` — one server, or a `404`; the only route under `:id` that can say a server does not exist |
+| Public | `GET …/servers/:id/events` — the feed, served from a default-deny allowlist (`server/catalogue.js`) |
+| Public | `GET …/servers/:id/leaderboard` — per wipe, or all-time as those rows summed |
+| Public | `GET …/servers/:id/wipes` and `…/online` |
+| Player | `GET /api/v1/player/rust/servers` — the server list, on the authenticated tier |
 | Admin | `GET/PUT/DELETE /api/v1/admin/rust/servers` and `POST …/:id/test` |
-| Page | `/rust/servers` |
+| Pages | `/rust` — the server list, and the module's landing page |
+| Pages | `/rust/servers/:id` — one server: feed, leaderboard, who is on, wipes |
+| Slot | `site.footer.status` — a live server/player count in core's footer |
 
-Two tables, `rust_servers` (configuration) and `rust_server_state` (what each sidecar reported).
+Every page reads this module's own tables and never calls a game server, which is what lets the
+whole surface render while every server in the fleet is off. Tab, feed filter, wipe and leaderboard
+sort all live in the URL, so any view of it is a link.
+
+Seven tables: `rust_servers` (configuration), `rust_server_state` and `rust_presence` (observed
+state), `rust_wipes`, `rust_players`, `rust_player_wipe_stats` and `rust_gather_totals` (the record a
+wipe does not erase), plus the bounded `rust_events` window and the `rust_ingest_cursor`.
 
 The rest of the module — identity, site-owned permissions, Teams from Rust's clans, notifications,
 events, the live map, Discord commands — arrives phase by phase. **Nothing is registered before it
 has something behind it:** a declared trigger nothing emits and a declared slot nothing fills are
 both surfaces an operator can configure and then wait on, which is worse than an absent one.
 
+### What a client feature-detects on
+
+`module.json` declares six capability strings, and `GET /api/v1/public/modules` hands them to any
+client that asks — the website's own nav, and the Android app (`docs/modules/rust/PLAN.md` R10).
+Five of them name a surface: `servers`, `killfeed`, `leaderboard`, `presence`, `wipes`.
+
+The sixth is `rust`, and it names **the module itself**. It looks redundant beside `id`, and it is
+not, for two reasons worth writing down before somebody tidies it away:
+
+- **A client that asks "is this module installed" has nowhere else to ask.** Core flattens every
+  started module's capabilities into one list, so `servers` alone is a word another module could
+  declare tomorrow and silently reveal this one's screens. `rust` is the string that can only mean
+  this module, and it is the single gate a whole navigation group hangs on — exactly the job `shard`
+  does for `module-uo`.
+- **`id` answers a different question.** It is a *mount prefix* (§2.1 requires it to equal the
+  directory core loads the module from), and `MODULE_API.md` §2.9 is explicit that a client must
+  never infer a route from a capability. Gating on `id` would quietly make the two the same thing,
+  and the day a client builds `/<id>/servers` from it, the contract that lets this module move its
+  own pages is gone.
+
+An unknown capability is absent, and no route is ever derived from one.
+
 ## Build and check
 
 ```bash

ci/bundle.json

@@ -29,12 +29,14 @@
   "server": [
     "boot.js",
     "catalogue.js",
+    "configEdit.js",
     "core.js",
     "db",
     "index.js",
     "ingest.js",
     "model",
     "package.json",
+    "permSync.js",
     "router",
     "sidecarClient.js"
   ],

client/src/api.js

@@ -25,6 +25,45 @@ const { request: req, BASE } = rg.api
 // registers under the `/rust` prefix `module.json` declares.
 export const servers = {
   list: () => req('/public/rust/servers'),
+
+  // One server, and the only route under `/servers/:id` that can answer "no such
+  // server": the four below answer an empty list for an id nobody ever
+  // configured, because an unknown server genuinely has no events.
+  get: (id) => req(`/public/rust/servers/${encodeURIComponent(id)}`),
+
+  // `kind` is a comma-separated list and `wipe` a wipe id; both are optional and
+  // both are built here rather than in a page, so the query string this module
+  // sends exists in one file.
+  events: (id, { kinds = null, wipe = null, limit = null } = {}) =>
+    req(`/public/rust/servers/${encodeURIComponent(id)}/events${query({
+      kind: kinds && kinds.length ? kinds.join(',') : null,
+      wipe,
+      limit,
+    })}`),
+
+  leaderboard: (id, { wipe = null, sort = null, limit = null } = {}) =>
+    req(`/public/rust/servers/${encodeURIComponent(id)}/leaderboard${query({ wipe, sort, limit })}`),
+
+  wipes: (id) => req(`/public/rust/servers/${encodeURIComponent(id)}/wipes`),
+
+  online: (id) => req(`/public/rust/servers/${encodeURIComponent(id)}/online`),
+}
+
+/**
+ * A query string from the parameters that have a value, or `''`.
+ *
+ * **An absent parameter must be absent, not empty.** `?wipe=` is not the same
+ * question as no `wipe` at all — the first asks for a wipe whose id is the empty
+ * string — and a page that sends one because a `<select>` is on "All time" gets
+ * an empty leaderboard and no error.
+ */
+function query(params) {
+  const search = new URLSearchParams()
+  for (const [key, value] of Object.entries(params)) {
+    if (value !== null && value !== undefined && value !== '') search.set(key, String(value))
+  }
+  const string = search.toString()
+  return string ? `?${string}` : ''
 }
 
 // ── player ────────────────────────────────────────────────────────────────
@@ -35,6 +74,20 @@ export const playerServers = {
   list: () => req('/player/rust/servers'),
 }
 
+// R1's identity link, from the signed-in player's side.
+//
+// **The code is the whole of what goes up.** The site has no idea which server
+// minted it — nothing in six characters says — so the server half asks each
+// configured server in turn (D24). A page that asked the player to pick would be
+// asking them a question the site can answer itself, and a wrong pick would come
+// back indistinguishable from a wrong code.
+export const playerLinks = {
+  list: () => req('/player/rust/links'),
+  confirm: (code) => req('/player/rust/link', { method: 'POST', body: { code } }),
+  remove: (steamId) =>
+    req(`/player/rust/links/${encodeURIComponent(steamId)}`, { method: 'DELETE' }),
+}
+
 // ── admin ─────────────────────────────────────────────────────────────────
 // **`sidecarToken` goes up and never comes back.** The list answers `hasToken`,
 // and a save that omits the field leaves the stored credential alone — so an
@@ -50,8 +103,122 @@ export const admin = {
     req(`/admin/rust/servers/${encodeURIComponent(id)}/test`, { method: 'POST' }),
 }
 
+// ── admin · permissions (R2) ──────────────────────────────────────────────
+//
+// The authoring surface. Every call here writes to the SITE, and none of them
+// reaches a game server — the mirror's own loop does that on its own cadence.
+// `sync` is the exception and says so in its name: it runs the pass now and
+// answers with what each server reported, which is the only call on this screen
+// that can be slow or fail because a game host is down.
+//
+// A write is followed by a re-read rather than a local edit of the model: what
+// the screen is showing is partly the game's answer, and the honest way to learn
+// the new one is to ask.
+export const adminPermissions = {
+  overview: () => req('/admin/rust/permissions'),
+  catalogue: () => req('/admin/rust/permissions/catalogue'),
+
+  saveGroup: (name, body) =>
+    req(`/admin/rust/permissions/groups/${encodeURIComponent(name)}`, { method: 'PUT', body }),
+  deleteGroup: (name) =>
+    req(`/admin/rust/permissions/groups/${encodeURIComponent(name)}`, { method: 'DELETE' }),
+
+  addMember: (name, username) =>
+    req(`/admin/rust/permissions/groups/${encodeURIComponent(name)}/members`, {
+      method: 'POST',
+      body: { username },
+    }),
+  removeMember: (name, userId) =>
+    req(
+      `/admin/rust/permissions/groups/${encodeURIComponent(name)}/members/${encodeURIComponent(userId)}`,
+      { method: 'DELETE' },
+    ),
+
+  grant: (body) => req('/admin/rust/permissions/grants', { method: 'POST', body }),
+  revoke: (id) =>
+    req(`/admin/rust/permissions/grants/${encodeURIComponent(id)}`, { method: 'DELETE' }),
+
+  adoptDrift: (id) =>
+    req(`/admin/rust/permissions/drift/${encodeURIComponent(id)}/adopt`, { method: 'POST' }),
+  revokeDrift: (id) =>
+    req(`/admin/rust/permissions/drift/${encodeURIComponent(id)}/revoke`, { method: 'POST' }),
+
+  sync: (serverId = null) =>
+    req('/admin/rust/permissions/sync', { method: 'POST', body: serverId ? { serverId } : {} }),
+}
+
+// ── admin · mod configuration (R18) ───────────────────────────────────────
+//
+// Every call here is a LIVE round trip to a game host, which makes this the only
+// section of this file where a call can be slow, or fail because a server is
+// off. Nothing is cached anywhere between the browser and the host's disk: a
+// cached config is an edit an operator made over SSH that this website then
+// silently overwrote.
+//
+// `save` carries a `version` the host issued with the file. Send a stale one and
+// the answer is a 409 with the current file attached, rather than an overwrite
+// of whatever somebody else changed in the meantime.
+export const adminConfig = {
+  files: (serverId) => req(`/admin/rust/config/${encodeURIComponent(serverId)}/files`),
+
+  file: (serverId, path) =>
+    req(`/admin/rust/config/${encodeURIComponent(serverId)}/file${query({ path })}`),
+
+  // Two tiers, one route. `edits` is the generated form — pointers and literals,
+  // type-preserving — and `text` is the raw document. A number travels as TEXT
+  // in both: `1.0` parsed into a JavaScript number and sent back as `1` is the
+  // whole failure this feature was designed around.
+  save: (serverId, body) =>
+    req(`/admin/rust/config/${encodeURIComponent(serverId)}/file`, { method: 'POST', body }),
+
+  writes: (serverId, limit = null) =>
+    req(`/admin/rust/config/${encodeURIComponent(serverId)}/writes${query({ limit })}`),
+}
+
+// ── the admin.users.detail extension slot ─────────────────────────────────
+//
+// The client half of R13's first slot. Core hands the component a `userId` and
+// NOTHING else — not a client — so an extension builds its own bindings for the
+// routes it registered at the other end (§3.5). These two are the only calls in
+// this file whose path is core's rather than this module's: the resource is
+// core's user, and the module's own segment is the part after it.
+export const adminUserLinks = {
+  list: (userId) => req(`/admin/users/${encodeURIComponent(userId)}/rust/links`),
+  remove: (userId, steamId) =>
+    req(`/admin/users/${encodeURIComponent(userId)}/rust/links/${encodeURIComponent(steamId)}`, {
+      method: 'DELETE',
+    }),
+}
+
+// The same panel's phase 7 half: what this person may do in game. The id in the
+// path is the one the slot handed the component, so these send `userId` rather
+// than a name — the screen already knows who it is looking at.
+export const adminUserPermissions = {
+  list: (userId) => req(`/admin/users/${encodeURIComponent(userId)}/rust/permissions`),
+  grant: (userId, body) =>
+    req(`/admin/users/${encodeURIComponent(userId)}/rust/permissions/grants`, {
+      method: 'POST',
+      body,
+    }),
+  revoke: (userId, grantId) =>
+    req(
+      `/admin/users/${encodeURIComponent(userId)}/rust/permissions/grants/${encodeURIComponent(grantId)}`,
+      { method: 'DELETE' },
+    ),
+}
+
 // Exported for the rare caller that needs the base itself — an `<img src>`, a
 // download link, an EventSource. Reach for `request` first.
-export { BASE }
+export { BASE, query }
 
-export default { servers, playerServers, admin, BASE }
+export default {
+  servers,
+  playerServers,
+  playerLinks,
+  admin,
+  adminPermissions,
+  adminConfig,
+  adminUserLinks,
+  adminUserPermissions,
+  BASE,
+}

client/src/components/Feed.jsx

@@ -0,0 +1,141 @@
+// ── The feed: what happened on one server ─────────────────────────────────
+//
+// Rows come from `/public/rust/servers/:id/events`, which serves a default-deny
+// ALLOWLIST (`server/catalogue.js`). Everything carrying an IP address, a
+// player's report about another player, or the grid square somebody's base is in
+// is stored and never answered here — so this component cannot leak one by
+// forgetting to filter, which is the point of the boundary living on the server.
+//
+// It polls (org lead, phase 4): every twenty seconds while the tab is visible,
+// paused when it is not. `usePolled` keeps the rows on screen across a refresh —
+// see the comment at the top of that file for why core's `useAsync` cannot do
+// this job.
+
+import { EmptyState, ErrorState, Loading } from '../core.js'
+import { describe, FILTERS, kindsFor } from '../lib/feed.js'
+import { ago, clock } from '../lib/format.js'
+import usePolled from '../hooks/usePolled.js'
+import api from '../api.js'
+
+const TONE = {
+  kill: 'var(--accent-bright)',
+  death: 'var(--muted)',
+  join: 'var(--mode-live, #5fb98a)',
+  leave: 'var(--dim)',
+  chat: 'var(--text)',
+  server: 'var(--mode-maint, #e6c26a)',
+  other: 'var(--muted)',
+}
+
+export default function Feed({ serverId, wipeId, filter, onFilter }) {
+  const kinds = kindsFor(filter)
+
+  const { data, error, loading, at } = usePolled(
+    () => api.servers.events(serverId, { kinds, wipe: wipeId, limit: 100 }),
+    // The key is the QUESTION. Changing server, wipe or filter blanks the rows,
+    // because what is on screen is an answer to a different one; a poll tick
+    // does not, because it is the same question asked again.
+    { key: `${serverId}|${wipeId || ''}|${filter}`, intervalMs: 20_000 },
+  )
+
+  const events = data ? data.events : []
+
+  return (
+    <div>
+      <div
+        className="sans"
+        style={{ display: 'flex', flexWrap: 'wrap', gap: 10, alignItems: 'center', marginBottom: 16 }}
+      >
+        <label style={{ color: 'var(--dim)', fontSize: '0.78rem' }}>
+          Showing{' '}
+          <select
+            value={filter}
+            onChange={(e) => onFilter(e.target.value)}
+            style={selectStyle}
+          >
+            {FILTERS.map((f) => (
+              <option key={f.id} value={f.id}>{f.label}</option>
+            ))}
+          </select>
+        </label>
+
+        {/* What a refresh is FOR: saying when the page last managed one. Without
+            it a feed that stopped updating looks exactly like a quiet server. */}
+        {at && (
+          <span style={{ color: 'var(--dim)', fontSize: '0.74rem' }}>updated {ago(at)}</span>
+        )}
+        {error && (
+          <span style={{ color: 'var(--mode-maint, #e6c26a)', fontSize: '0.74rem' }}>
+            the last refresh failed — showing what we had
+          </span>
+        )}
+      </div>
+
+      {loading && <Loading />}
+
+      {/* An error with nothing to fall back on is the only case that takes over
+          the panel. A failed REFRESH keeps the rows and says so in the line
+          above, because a site whose premise is "it renders while the game is
+          off" must not blank itself the first time a request does. */}
+      {error && !data && <ErrorState error={error} />}
+
+      {data && events.length === 0 && (
+        <EmptyState
+          title="Nothing here yet"
+          message="Nothing this server has reported matches. A server that has just been added has no history until it says something."
+        />
+      )}
+
+      {events.length > 0 && (
+        <ol style={{ listStyle: 'none', margin: 0, padding: 0 }}>
+          {events.map((event) => {
+            const line = describe(event)
+            return (
+              <li
+                key={event.id}
+                style={{
+                  display: 'flex',
+                  gap: 12,
+                  alignItems: 'baseline',
+                  padding: '7px 0',
+                  borderBottom: '1px solid var(--line-soft, var(--line))',
+                }}
+              >
+                <time
+                  className="sans"
+                  dateTime={new Date(event.t).toISOString()}
+                  title={new Date(event.t).toLocaleString()}
+                  style={{ flex: 'none', color: 'var(--dim)', fontSize: '0.74rem', minWidth: '5.6rem' }}
+                >
+                  {clock(event.t)}
+                </time>
+                <span style={{ color: TONE[line.tone] || 'var(--muted)', fontSize: '0.92rem' }}>
+                  {line.actor && <strong style={{ color: 'var(--ink)' }}>{line.actor}</strong>}
+                  {line.actor && (line.join || ' ')}
+                  {line.verb}
+                  {line.subject && ' '}
+                  {line.subject && <strong style={{ color: 'var(--ink)' }}>{line.subject}</strong>}
+                  {line.detail && (
+                    <span className="sans" style={{ color: 'var(--dim)', fontSize: '0.76rem' }}>
+                      {' · '}
+                      {line.detail}
+                    </span>
+                  )}
+                </span>
+              </li>
+            )
+          })}
+        </ol>
+      )}
+    </div>
+  )
+}
+
+const selectStyle = {
+  background: 'var(--panel-flat, transparent)',
+  color: 'var(--text)',
+  border: '1px solid var(--line)',
+  borderRadius: 'var(--radius-input, 6px)',
+  padding: '3px 8px',
+  fontSize: '0.78rem',
+}

client/src/components/FooterStatus.jsx

@@ -0,0 +1,73 @@
+// ── This module's fill for core's `site.footer.status` slot ───────────────
+//
+// R13, and the contract is MODULE_API.md §3.7. Core owns the position in the
+// footer's info row and the separator around it, and passes `linkStyle` so the
+// row stays visually one row. **The label, the destination, the data and whether
+// anything renders at all are this component's** — that is the whole division,
+// and it is why the slot is named for a place rather than for a meaning.
+//
+// ── The live count, and what it costs ─────────────────────────────────────
+//
+// The org lead chose a live count ("3 servers · 42 online") over a static link,
+// so this fetches. Be clear-eyed about where it fetches from: core renders
+// `SiteFooter` inside `PublicLayout`, and every public page renders
+// `PublicLayout` ITSELF (§3.3) — so this component mounts once per public page
+// view, not once per session. Every public page on the site therefore carries one
+// `/public/rust/servers` request, including pages that have nothing to do with
+// Rust.
+//
+// Two things keep that honest rather than merely cheap:
+//
+//  • **It renders NOTHING until it has an answer, and nothing again if the
+//    request fails.** An unfilled slot renders nothing and core's `wrap` takes
+//    the separator with it, so a failed fetch degrades to exactly the footer an
+//    instance with no module installed has. A spinner in a footer would be worse
+//    than silence on every page of the site.
+//  • **It never polls.** One request per page view is a cost; a timer in the
+//    footer of every page would be a different kind of thing entirely.
+//
+// If that per-page request ever shows up in an operator's logs as a problem, the
+// fix is a short-lived module-scope cache here — the decision to keep the number
+// live stays intact, and nothing else on the site has to change.
+
+import { useEffect, useState } from 'react'
+import { Link } from 'react-router-dom'
+import api from '../api.js'
+
+export default function FooterStatus({ linkStyle }) {
+  const [summary, setSummary] = useState(null)
+
+  useEffect(() => {
+    let live = true
+
+    api.servers
+      .list()
+      .then(({ servers }) => {
+        if (!live) return
+        // `online` already accounts for staleness — the model refuses to let a
+        // row that has not been written in five minutes claim a server is up —
+        // so this is a sum, not a judgement.
+        setSummary({
+          servers: servers.length,
+          players: servers.reduce((total, server) => total + (server.online ? server.players : 0), 0),
+        })
+      })
+      // Silence, deliberately. This is the footer of every page on the site; a
+      // module that cannot reach its own API has nothing to say there.
+      .catch(() => {})
+
+    return () => {
+      live = false
+    }
+  }, [])
+
+  if (!summary || summary.servers === 0) return null
+
+  return (
+    <Link to="/rust" style={linkStyle}>
+      {summary.servers === 1 ? '1 server' : `${summary.servers} servers`}
+      {' · '}
+      {summary.players === 1 ? '1 online' : `${summary.players} online`}
+    </Link>
+  )
+}

client/src/components/Leaderboard.jsx

@@ -0,0 +1,110 @@
+// ── The leaderboard ───────────────────────────────────────────────────────
+//
+// Per wipe when a wipe is selected, all-time when it is not (R12). The two are
+// the same rows summed differently rather than two sets of counters, so they can
+// never disagree — which is worth knowing here because it means "All time" is
+// not a slower or less accurate answer, it is the same table without a WHERE.
+//
+// It does NOT poll. A leaderboard moves on the scale of a session; a table that
+// re-sorted itself under the reader's cursor every twenty seconds would be worse
+// than one that is four minutes old, and the page has a `Refresh` on the tab
+// strip for anybody who disagrees.
+
+import { EmptyState, ErrorState, Loading, useAsync } from '../core.js'
+import { ago, count, duration, shortId } from '../lib/format.js'
+import api from '../api.js'
+
+// `sort` is the API's own vocabulary (`kills`, `deaths`, `npcKills`, `playtime`),
+// and the column it maps to is this file's. Keeping them in one list is what
+// stops a header that sorts by something other than what it says.
+const COLUMNS = [
+  { key: 'kills', label: 'Kills', sort: 'kills', value: (r) => count(r.kills) },
+  { key: 'deaths', label: 'Deaths', sort: 'deaths', value: (r) => count(r.deaths) },
+  { key: 'npcKills', label: 'NPC kills', sort: 'npcKills', value: (r) => count(r.npcKills) },
+  { key: 'structures', label: 'Structures', sort: null, value: (r) => count(r.structures) },
+  { key: 'playtimeSec', label: 'Played', sort: 'playtime', value: (r) => duration(r.playtimeSec) },
+]
+
+export default function Leaderboard({ serverId, wipeId, sort, onSort }) {
+  const { data, loading, error } = useAsync(
+    () => api.servers.leaderboard(serverId, { wipe: wipeId, sort, limit: 50 }),
+    [serverId, wipeId, sort],
+  )
+
+  const rows = data ? data.leaderboard : []
+
+  if (loading) return <Loading />
+  if (error) return <ErrorState error={error} />
+
+  if (rows.length === 0) {
+    return (
+      <EmptyState
+        title="No scores yet"
+        message={
+          wipeId
+            ? 'Nobody has done anything countable on this wipe yet.'
+            : 'This server has not reported anything countable yet.'
+        }
+      />
+    )
+  }
+
+  return (
+    <div style={{ overflowX: 'auto' }}>
+      <table className="sans" style={{ width: '100%', borderCollapse: 'collapse', fontSize: '0.86rem' }}>
+        <thead>
+          <tr style={{ textAlign: 'left', color: 'var(--dim)', fontSize: '0.72rem', letterSpacing: '0.08em' }}>
+            <th style={{ ...cell, textTransform: 'uppercase' }}>Player</th>
+            {COLUMNS.map((column) => (
+              <th key={column.key} style={{ ...cell, textAlign: 'right', textTransform: 'uppercase' }}>
+                {column.sort ? (
+                  <button
+                    type="button"
+                    onClick={() => onSort(column.sort)}
+                    aria-label={`Sort by ${column.label}`}
+                    style={{
+                      cursor: 'pointer',
+                      background: 'none',
+                      border: 'none',
+                      padding: 0,
+                      font: 'inherit',
+                      letterSpacing: 'inherit',
+                      textTransform: 'inherit',
+                      color: column.sort === sort ? 'var(--accent-bright)' : 'var(--dim)',
+                    }}
+                  >
+                    {column.label}
+                  </button>
+                ) : (
+                  column.label
+                )}
+              </th>
+            ))}
+            <th style={{ ...cell, textAlign: 'right', textTransform: 'uppercase' }}>Last seen</th>
+          </tr>
+        </thead>
+        <tbody>
+          {rows.map((row, index) => (
+            <tr key={row.steamId} style={{ borderTop: '1px solid var(--line-soft, var(--line))' }}>
+              <td style={cell}>
+                <span style={{ color: 'var(--dim)', marginRight: 8 }}>{index + 1}</span>
+                {/* A player this module has never seen NAMED is shown by the tail
+                    of their id rather than as a blank: the row is real, and a
+                    nameless one reads as a rendering fault. */}
+                <strong style={{ color: 'var(--ink)' }}>{row.name || shortId(row.steamId)}</strong>
+              </td>
+              {COLUMNS.map((column) => (
+                <td key={column.key} style={{ ...cell, textAlign: 'right' }}>
+                  {column.value(row)}
+                </td>
+              ))}
+              <td style={{ ...cell, textAlign: 'right', color: 'var(--dim)' }}>{ago(row.lastSeen)}</td>
+            </tr>
+          ))}
+        </tbody>
+      </table>
+    </div>
+  )
+}
+
+const cell = { padding: '8px 10px', whiteSpace: 'nowrap' }

client/src/components/Online.jsx

@@ -0,0 +1,94 @@
+// ── Who is on the server right now ────────────────────────────────────────
+//
+// Read from the presence BOARD, not counted from connect and disconnect events:
+// the bridge re-sends the whole board on every connect and every sixty seconds,
+// so this is right even after the website has missed something (PROTOCOL.md
+// §8.3). Counting transitions instead would drift, and drift in the direction
+// people notice — players who never left.
+//
+// It polls with the feed, because "who is on" is the one thing on this page that
+// is a live question.
+
+import { EmptyState, ErrorState, Loading } from '../core.js'
+import { duration, shortId } from '../lib/format.js'
+import usePolled from '../hooks/usePolled.js'
+import api from '../api.js'
+
+export default function Online({ serverId, online }) {
+  const { data, error, loading } = usePolled(() => api.servers.online(serverId), {
+    key: serverId,
+    intervalMs: 20_000,
+  })
+
+  const players = data ? data.players : []
+
+  if (loading) return <Loading />
+  if (error && !data) return <ErrorState error={error} />
+
+  if (players.length === 0) {
+    return (
+      <EmptyState
+        title={online ? 'Nobody is on' : 'The server is offline'}
+        message={
+          online
+            ? 'The server is up and the island is empty. Somebody has to be first.'
+            : 'Presence is the one thing on this page that cannot be answered from the record — it is who is connected now, and nothing is.'
+        }
+      />
+    )
+  }
+
+  return (
+    <>
+      {/* A board is the last one that ARRIVED, and an unreachable sidecar does not
+          clear it — deliberately, because the rows are still the best answer
+          anybody has. But presented bare they read as "these people are on right
+          now", which is the one thing an offline server cannot be saying. The
+          page walk found this with a fixture server whose header said Offline
+          above three apparently-connected players. */}
+      {!online && (
+        <p className="sans" style={{ color: 'var(--dim)', fontSize: '0.8rem', marginTop: 0 }}>
+          This server is offline. Below is the last board it sent, not who is on it now.
+        </p>
+      )}
+      <ul style={{ listStyle: 'none', margin: 0, padding: 0 }}>
+      {players.map((player) => (
+        <li
+          key={player.steamId}
+          style={{
+            display: 'flex',
+            justifyContent: 'space-between',
+            alignItems: 'baseline',
+            gap: 12,
+            padding: '8px 0',
+            borderBottom: '1px solid var(--line-soft, var(--line))',
+          }}
+        >
+          <span>
+            <strong style={{ color: 'var(--ink)' }}>{player.name || shortId(player.steamId)}</strong>
+            {/* Sleeping is not idle and not offline — a sleeping player's body is
+                in the world and can be killed, which is why the board carries the
+                flag at all. */}
+            {player.sleeping && (
+              <span className="sans" style={{ color: 'var(--dim)', fontSize: '0.76rem' }}> · sleeping</span>
+            )}
+          </span>
+          {/* `connectedAt` is absent for a player who was already on when the
+              plugin loaded — an unknown session length, which is not a session of
+              no length. Saying nothing is the honest render of that. */}
+          <span className="sans" style={{ color: 'var(--dim)', fontSize: '0.78rem', whiteSpace: 'nowrap' }}>
+            {player.connectedAt ? `on for ${sessionSoFar(player.connectedAt)}` : ''}
+          </span>
+          </li>
+        ))}
+      </ul>
+    </>
+  )
+}
+
+/** How long a player has been on, from the DATETIME the board reported. */
+function sessionSoFar(connectedAt) {
+  const since = Date.parse(connectedAt)
+  if (Number.isNaN(since)) return ''
+  return duration((Date.now() - since) / 1000)
+}

client/src/components/Tabs.jsx

@@ -0,0 +1,63 @@
+// ── Tabs, bundled rather than borrowed ────────────────────────────────────
+//
+// The shared kit is nine members and it is CLOSED (MODULE_API.md §3.4): layout,
+// headings, the three data-page states, the fetch hook, the session, the site
+// and `Slot`. A tab strip is not in it, so it is here — which is the kit working
+// as designed rather than a gap in it. What the kit guarantees is that a module
+// page looks like the site while it loads and while it fails; everything a page
+// builds on top of that is the module's own.
+//
+// It is styled with core's CSS VARIABLES and its `.pill` class rather than with
+// colours of its own, so it re-themes with the instance (THEMING_AND_NAV.md).
+// The one class this module must never write by hand is the shell wrapper —
+// `PublicLayout`'s `shell` prop exists precisely so that one stays core's.
+//
+// **The selected tab lives in the URL, not in this component.** A tab strip that
+// owned its own state would make every panel on this page unlinkable: "look at
+// the leaderboard for this server" would be a sentence rather than a link, back
+// would leave the page entirely, and a refresh would land on the first tab. So
+// this is a controlled component and `ServerDetail` keeps the state in a search
+// parameter.
+
+export default function Tabs({ tabs, active, onSelect, label = 'Sections' }) {
+  return (
+    <div
+      role="tablist"
+      aria-label={label}
+      className="sans"
+      style={{
+        display: 'flex',
+        flexWrap: 'wrap',
+        gap: 8,
+        borderBottom: '1px solid var(--line)',
+        paddingBottom: 12,
+        marginBottom: 20,
+      }}
+    >
+      {tabs.map((tab) => {
+        const selected = tab.id === active
+        return (
+          <button
+            key={tab.id}
+            type="button"
+            role="tab"
+            aria-selected={selected}
+            onClick={() => onSelect(tab.id)}
+            style={{
+              cursor: 'pointer',
+              padding: '6px 14px',
+              borderRadius: 'var(--radius-pill, 999px)',
+              fontSize: '0.82rem',
+              letterSpacing: '0.04em',
+              border: `1px solid ${selected ? 'var(--accent)' : 'var(--line)'}`,
+              background: selected ? 'var(--blue)' : 'transparent',
+              color: selected ? 'var(--accent-bright)' : 'var(--muted)',
+            }}
+          >
+            {tab.label}
+          </button>
+        )
+      })}
+    </div>
+  )
+}

client/src/components/WipeSelect.jsx

@@ -0,0 +1,54 @@
+// ── "This wipe" or "All time" ─────────────────────────────────────────────
+//
+// One control, used by two panels, because the wipe is a property of the PAGE
+// rather than of the feed or the leaderboard — a reader who has chosen last
+// month's map means it for both, and two selects that could disagree is a page
+// that shows one wipe's kills next to another's leaderboard.
+//
+// It loads the wipe list itself. That is a second request for the same list the
+// Wipes tab fetches, and it is the right trade: the alternative is the page
+// fetching it on mount for a control most visitors never touch, on every visit,
+// for every server.
+
+import { useAsync } from '../core.js'
+import { day } from '../lib/format.js'
+import api from '../api.js'
+
+/** The value that means "no wipe filter at all". Never the empty string — see `api.js`'s `query`. */
+export const ALL_TIME = 'all'
+
+export default function WipeSelect({ serverId, value, onChange, currentWipeId }) {
+  const { data } = useAsync(() => api.servers.wipes(serverId), [serverId])
+  const wipes = data ? data.wipes : []
+
+  // A server with one wipe has nothing to choose between, so the control is not
+  // offered. "All time" and "this wipe" are the same answer there, and a select
+  // with one real option is furniture that invites a question with no answer.
+  if (wipes.length < 2) return null
+
+  return (
+    <label className="sans" style={{ color: 'var(--dim)', fontSize: '0.78rem' }}>
+      Wipe{' '}
+      <select
+        value={value || ALL_TIME}
+        onChange={(event) => onChange(event.target.value)}
+        style={{
+          background: 'var(--panel-flat, transparent)',
+          color: 'var(--text)',
+          border: '1px solid var(--line)',
+          borderRadius: 'var(--radius-input, 6px)',
+          padding: '3px 8px',
+          fontSize: '0.78rem',
+        }}
+      >
+        <option value={ALL_TIME}>All time</option>
+        {wipes.map((wipe) => (
+          <option key={wipe.wipeId} value={wipe.wipeId}>
+            {day(wipe.saveCreatedAt || wipe.firstSeen)}
+            {wipe.wipeId === currentWipeId ? ' (current)' : ''}
+          </option>
+        ))}
+      </select>
+    </label>
+  )
+}

client/src/components/Wipes.jsx

@@ -0,0 +1,85 @@
+// ── Every wipe this server has had ────────────────────────────────────────
+//
+// The list is what makes the rest of the page navigable — picking a wipe here
+// filters the feed and the leaderboard — and it is also the proof R12 asks for:
+// a wipe that ended is still here, with its record still attached. A Rust server
+// wipes monthly, and a community site that forgot the previous map every time
+// would throw away most of what it knows about its own players.
+//
+// `wipeId` is derived by the bridge PLUGIN from the save's creation time and
+// stamped on every frame (PROTOCOL.md §8.2), so the id in this list is the same
+// id the events and the leaderboard filter by. There is no second derivation
+// anywhere that could disagree.
+
+import { EmptyState, ErrorState, Loading, useAsync } from '../core.js'
+import { ago, day } from '../lib/format.js'
+import api from '../api.js'
+
+export default function Wipes({ serverId, currentWipeId, selected, onSelect }) {
+  const { data, loading, error } = useAsync(() => api.servers.wipes(serverId), [serverId])
+  const wipes = data ? data.wipes : []
+
+  if (loading) return <Loading />
+  if (error) return <ErrorState error={error} />
+
+  if (wipes.length === 0) {
+    return (
+      <EmptyState
+        title="No wipes recorded"
+        message="A wipe appears here once this server has reported something during it."
+      />
+    )
+  }
+
+  return (
+    <ul style={{ listStyle: 'none', margin: 0, padding: 0 }}>
+      {wipes.map((wipe) => {
+        const current = wipe.wipeId === currentWipeId
+        const active = wipe.wipeId === selected
+        return (
+          <li key={wipe.wipeId} style={{ borderBottom: '1px solid var(--line-soft, var(--line))' }}>
+            <button
+              type="button"
+              onClick={() => onSelect(wipe.wipeId)}
+              style={{
+                display: 'flex',
+                width: '100%',
+                gap: 12,
+                alignItems: 'baseline',
+                justifyContent: 'space-between',
+                padding: '10px 6px',
+                cursor: 'pointer',
+                background: active ? 'var(--blue)' : 'transparent',
+                border: 'none',
+                color: 'inherit',
+                font: 'inherit',
+                textAlign: 'left',
+              }}
+            >
+              <span>
+                <strong style={{ color: 'var(--ink)' }}>
+                  {/* The save's creation time is the wipe's own date; `firstSeen`
+                      is when THIS website first heard about it, and they differ
+                      by however long the module was not installed. The first is
+                      the wipe, so it leads. */}
+                  {day(wipe.saveCreatedAt || wipe.firstSeen)}
+                </strong>
+                {current && (
+                  <span className="sans" style={{ color: 'var(--mode-live, #5fb98a)', fontSize: '0.74rem' }}>
+                    {' · current'}
+                  </span>
+                )}
+                <span className="sans" style={{ display: 'block', color: 'var(--dim)', fontSize: '0.74rem' }}>
+                  {wipe.wipeId}
+                </span>
+              </span>
+              <span className="sans" style={{ color: 'var(--dim)', fontSize: '0.78rem', whiteSpace: 'nowrap' }}>
+                last heard {ago(wipe.lastSeen)}
+              </span>
+            </button>
+          </li>
+        )
+      })}
+    </ul>
+  )
+}

client/src/entry.jsx

@@ -19,6 +19,13 @@
 import { registry, coreApiVersion } from './core.js'
 
 import Servers from './routes/public/Servers.jsx'
+import ServerDetail from './routes/public/ServerDetail.jsx'
+import Account from './routes/player/Account.jsx'
+import Permissions from './routes/admin/Permissions.jsx'
+import ModConfig from './routes/admin/ModConfig.jsx'
+import UserRustSections from './routes/admin/UserRustSections.jsx'
+import FooterStatus from './components/FooterStatus.jsx'
+import { IconKey, IconLink, IconSliders } from './icons.jsx'
 
 // The module id, exactly as `module.json` spells it. Core keys the registry by it
 // and prefixes every route path with it.
@@ -33,7 +40,7 @@ const ID = 'rust'
 // installed side by side cannot collide, and an operator can see from a URL which
 // module served it.
 //
-// So this page is at `/rust/servers`.
+// So the list below is at `/rust` and the detail page at `/rust/servers/:id`.
 //
 // **Note what is NOT here: an auth wrapper.** `gate: { roles: [...] }` is
 // available and core applies it as its own `RoleGate`; supplying your own is not
@@ -41,11 +48,53 @@ const ID = 'rust'
 // see what, and they only do if one thing decides.
 //
 // R8's landing page is the server list, and `/rust/servers/:id` hangs beneath it.
-// The detail route is a later phase's, and it is deliberately not stubbed here: a
-// registered route that renders nothing is a 200 with a blank page, which is
-// worse than the 404 an unregistered one gives.
+//
+// **The list is registered with an EMPTY path**, which core renders as the
+// module's namespace root: `/rust`. The prefixing code strips the separator it
+// would otherwise leave behind (`registry.js`: `${id}/${path}` with trailing
+// slashes trimmed), so a module can own its own root without being able to spell
+// its way out of it. Phase 1 served this page at `/rust/servers` and left `/rust`
+// to core's CMS catch-all; the org lead settled it at `/rust` in phase 4, so the
+// address an operator links to is the module's name.
+//
+// React Router ranks a static segment above a dynamic one, so `/rust` wins
+// against core's `/:slug` CMS route without depending on registration order.
+//
+// The player route is registered with an empty path for the same reason the
+// public list is: `/player/rust` is the whole of what this module asks a player
+// to do, and a landing page above one page is a page nobody wants. Core applies
+// its own portal chrome and its own auth gate to the tier, so the component
+// renders no layout and re-implements no check.
+//
+// **The admin route arrives in phase 7 and is this module's first.** Everything
+// before it was configured through the API — the server rows still are — because
+// nothing until now had to be AUTHORED. A permission model is different in kind:
+// it is a thing an operator composes and keeps looking at, and there is no
+// version of "grant somebody VIP" that belongs in a terminal.
+//
+// It is registered with an empty path, so it lands at `/admin/rust`, and core
+// applies the admin tier's own gate. The routes underneath it are stricter than
+// that gate (`requireRole('admin')` on every one), which is a server-side answer
+// rather than a client one: a moderator who reached this page would see it fail
+// honestly rather than be quietly shown a page that cannot save.
 registry.registerRoutes(ID, {
-  public: [{ path: 'servers', element: <Servers /> }],
+  public: [
+    { path: '', element: <Servers /> },
+    { path: 'servers/:id', element: <ServerDetail /> },
+  ],
+  player: [{ path: '', element: <Account /> }],
+  admin: [
+    { path: '', element: <Permissions /> },
+    // Phase 7b (R18). A second admin page rather than a tab on the first: the
+    // permission mirror decides who may do what inside the game, and this edits
+    // the game host's own files. They are neighbours, not halves of one screen,
+    // and the nav says so with two rows.
+    //
+    // A static segment under the module's namespace, so it lands at
+    // `/admin/rust/config` and core's admin gate applies to it exactly as it
+    // does to the page above.
+    { path: 'config', element: <ModConfig /> },
+  ],
 })
 
 // ── Nav ───────────────────────────────────────────────────────────────────
@@ -67,9 +116,59 @@ registry.registerRoutes(ID, {
 //     one is the only row in its sidebar with no glyph, which reads as breakage.
 registry.registerNav(ID, {
   area: 'public',
-  items: [{ label: 'Servers', to: '/rust/servers' }],
+  items: [{ label: 'Servers', to: '/rust' }],
 })
 
+// The player portal's row. It carries an `icon` because core draws one on every
+// portal row — a row without one is the only text in a column of glyphs, and
+// core used to render `<n.icon />` unguarded, which blanked the whole portal.
+//
+// No `order`: an unordered row appends after core's own rather than claiming a
+// position it was not given. Account, appeals and notifications are what a player
+// came to the portal for; linking a game account is what they do once.
+registry.registerNav(ID, {
+  area: 'player',
+  items: [{ label: 'Rust', to: '/player/rust', icon: IconLink }],
+})
+
+// The admin sidebar's row. `group` names an existing core group — an unknown name
+// appends a new group at the end rather than dropping the row, which is the
+// failure mode to avoid here: a row nobody can find is a feature nobody has.
+//
+// It carries an icon for the same reason the player row does: core draws one on
+// every sidebar row, and the one without is the only text in a column of glyphs.
+registry.registerNav(ID, {
+  area: 'admin',
+  items: [
+    { label: 'Rust permissions', to: '/admin/rust', icon: IconKey },
+    { label: 'Rust mod config', to: '/admin/rust/config', icon: IconSliders },
+  ],
+})
+
+// ── Extension slots ───────────────────────────────────────────────────────
+//
+// Core declares a slot, only core may declare one, and at most one module may
+// fill it (§3.7). `site.footer.status` is the status-ish spot in core's footer
+// info row: core owns the position and passes `linkStyle`; the label, the
+// destination, the data and whether anything renders at all are the module's.
+//
+// It is a CLIENT slot and cannot be named in `module.json`'s `extensions` —
+// that array is validated against the SERVER registry, and naming a client slot
+// there fails the load outright with `unknown extension slot`. Phase 1 found
+// that the hard way; the two halves of R13 are declared in different places on
+// purpose.
+registry.registerExtension(ID, 'site.footer.status', FooterStatus)
+
+// R13's other slot, and the one that IS named in `module.json` — because it has
+// a server half too (`server/router/admin/usersRust.router.js`). The two halves
+// carry one name on purpose: a module that adds routes under
+// `/api/v1/admin/users/:id` is the module with something to show on that page.
+//
+// Core passes `userId` and nothing else, so the component builds its own client
+// for the routes the server half registered. It renders NOTHING for a user with
+// no linked Steam account, which is most of them.
+registry.registerExtension(ID, 'admin.users.detail', UserRustSections)
+
 // `module.json`'s `coreApi` range was checked by the loader before this file was
 // ever served, so there is nothing to re-check here. Log it anyway: a mismatch
 // between the core that validated the manifest and the core that published this

client/src/hooks/usePolled.js

@@ -0,0 +1,116 @@
+// ── A poll that keeps what it already had ─────────────────────────────────
+//
+// **Why this is not `useAsync`.** Core's hook (MODULE_API.md §3.4, and
+// `client/src/lib/useAsync.js` in core) is `useState({loading:true,error:null,data:null})`
+// re-run on a dependency change — and the first thing it does on every run is
+// blank `data` and set `loading`. That is right for a page load and wrong for a
+// poll: bumping a dependency every twenty seconds would clear the killfeed,
+// render `<Loading />` in its place and re-fill it, four times a minute, for ever.
+//
+// So a poll needs a hook whose refresh is INVISIBLE when it succeeds. It keeps
+// the previous rows on screen, replaces them when the new ones arrive, and keeps
+// them *and* reports the error when the fetch fails — because a site whose whole
+// premise is "it renders while the game is off" must not blank the page the
+// first time a request does.
+//
+// `useAsync` is still the right hook for everything that loads once, and the
+// pages here use it for exactly that. Bundling this beside it is the kit working
+// as intended: the nine shared members are the chrome every module must share,
+// not a ceiling on what a module may write.
+//
+// ── Two behaviours worth knowing ──────────────────────────────────────────
+//
+//  1. **A backgrounded tab does not poll.** Page Visibility, plus an immediate
+//     refresh when the viewer comes back — which is also the moment stale rows
+//     are most visible. A tab left open overnight is otherwise a request every
+//     twenty seconds until the laptop dies.
+//  2. **`key` resets, dependencies do not.** Switching server or wipe SHOULD
+//     blank the rows: what is on screen belongs to a different question. That is
+//     what `key` is for, and it is separate from the interval.
+
+import { useCallback, useEffect, useRef, useState } from 'react'
+
+/**
+ * @param {() => Promise<any>} fetcher  called with no arguments; must not throw synchronously
+ * @param {object} options
+ * @param {string} options.key       changes when the QUESTION changes, blanking the answer
+ * @param {number} options.intervalMs 0 disables polling — the hook then loads once
+ * @param {boolean} options.enabled  false while the page has nothing to ask about yet
+ */
+export function usePolled(fetcher, { key = '', intervalMs = 20000, enabled = true } = {}) {
+  const [state, setState] = useState({ data: null, error: null, loading: enabled, at: null })
+
+  // The fetcher is rebuilt on every render — it closes over props — and a hook
+  // that listed it as a dependency would restart its interval every render. The
+  // ref is how the timer keeps calling the CURRENT one without depending on it.
+  const latest = useRef(fetcher)
+  latest.current = fetcher
+
+  // Guards a reply from a question nobody is asking any more: a slow request
+  // whose page has moved on, or one still in flight at unmount.
+  const generation = useRef(0)
+
+  const run = useCallback(
+    async (mine) => {
+      try {
+        const data = await latest.current()
+        if (mine !== generation.current) return
+        setState({ data, error: null, loading: false, at: Date.now() })
+      } catch (error) {
+        if (mine !== generation.current) return
+        // `data` is carried forward deliberately. A failed refresh is a page that
+        // says "this is what we last knew, and it did not refresh", which is the
+        // same promise the server list makes about a game server being down.
+        setState((prev) => ({ data: prev.data, error, loading: false, at: prev.at }))
+      }
+    },
+    [],
+  )
+
+  const refresh = useCallback(() => run(generation.current), [run])
+
+  useEffect(() => {
+    generation.current += 1
+    const mine = generation.current
+
+    if (!enabled) {
+      setState({ data: null, error: null, loading: false, at: null })
+      return undefined
+    }
+
+    setState({ data: null, error: null, loading: true, at: null })
+    run(mine)
+
+    if (!intervalMs) return () => { generation.current += 1 }
+
+    let timer = null
+
+    const visible = () => typeof document === 'undefined' || document.visibilityState === 'visible'
+
+    const start = () => {
+      if (timer === null) timer = setInterval(() => run(mine), intervalMs)
+    }
+    const stop = () => {
+      if (timer !== null) { clearInterval(timer); timer = null }
+    }
+
+    const onVisibility = () => {
+      if (visible()) { run(mine); start() } else stop()
+    }
+
+    if (visible()) start()
+    if (typeof document !== 'undefined') document.addEventListener('visibilitychange', onVisibility)
+
+    return () => {
+      // Bumping the generation on teardown is what makes an in-flight reply from
+      // the old question land nowhere. Clearing the timer alone would not.
+      generation.current += 1
+      stop()
+      if (typeof document !== 'undefined') document.removeEventListener('visibilitychange', onVisibility)
+    }
+  }, [key, intervalMs, enabled, run])
+
+  return { ...state, refresh }
+}
+
+export default usePolled

client/src/icons.jsx

@@ -0,0 +1,86 @@
+// ── The nav glyph for this module's player-portal row ─────────────────────
+//
+// `icon` is part of the nav-item contract (MODULE_API.md §3.3, 1.3.0): core
+// renders whatever component a row carries, exactly as it renders its own rows'
+// icons — and core's player portal draws a glyph on every row, so a row without
+// one reads as breakage rather than as a design. The client suite asserts it.
+//
+// The public header is text buttons and carries no icons, which is why this file
+// arrives with the player row and not before it.
+//
+// **The frame is copied from core's `PlayerPortalLayout`, deliberately and by
+// copy rather than by import** — 16px, `currentColor`, stroke 2. Four attributes
+// of presentation are not a component: putting them in the shared kit would
+// freeze core's icon sizing into the contract, where changing it later would be a
+// major bump. A module that wants to look like the nav it is in matches that nav.
+
+const Icon = ({ children }) => (
+  <svg
+    width="16"
+    height="16"
+    viewBox="0 0 24 24"
+    fill="none"
+    stroke="currentColor"
+    strokeWidth="2"
+    strokeLinecap="round"
+    strokeLinejoin="round"
+    aria-hidden="true"
+    focusable="false"
+  >
+    {children}
+  </svg>
+)
+
+/**
+ * A chain link — what the row is for.
+ *
+ * Not a gem, a person or a server: the portal's rows say what a player does
+ * there, and what a player does at `/player/rust` is link an account. Core's own
+ * neighbours are a gear (account), a shield (appeals) and a bell (notifications),
+ * so the row has to read as a verb in that company.
+ */
+export const IconLink = () => (
+  <Icon>
+    <path d="M10 13a5 5 0 007.07 0l2.83-2.83a5 5 0 00-7.07-7.07L11.5 4.5" />
+    <path d="M14 11a5 5 0 00-7.07 0L4.1 13.83a5 5 0 007.07 7.07L12.5 19.5" />
+  </Icon>
+)
+
+/**
+ * A key — the admin sidebar's row for the permission mirror.
+ *
+ * Core's admin groups are labelled by subject and drawn with glyphs of the same
+ * weight, so this is the same 16px frame as the portal's. A key rather than a
+ * shield: a shield is protection from something, and this row is about handing
+ * somebody the right to do something.
+ */
+export const IconKey = () => (
+  <Icon>
+    <circle cx="7.5" cy="15.5" r="4.5" />
+    <path d="M10.7 12.3L20 3" />
+    <path d="M17 6l2.5 2.5" />
+  </Icon>
+)
+
+/**
+ * Sliders — the admin sidebar's row for the mod-configuration editor.
+ *
+ * Not a gear: core's account row is a gear, and two gears in one sidebar say
+ * "settings" twice without saying whose. Sliders read as values being tuned,
+ * which is exactly what that page does to somebody else's game host.
+ */
+export const IconSliders = () => (
+  <Icon>
+    <path d="M4 6h10" />
+    <path d="M18 6h2" />
+    <circle cx="16" cy="6" r="2" />
+    <path d="M4 12h4" />
+    <path d="M12 12h8" />
+    <circle cx="10" cy="12" r="2" />
+    <path d="M4 18h10" />
+    <path d="M18 18h2" />
+    <circle cx="16" cy="18" r="2" />
+  </Icon>
+)
+
+export default { IconLink, IconKey, IconSliders }

client/src/lib/feed.js

@@ -0,0 +1,178 @@
+// ── One stored frame as one line of a feed ────────────────────────────────
+//
+// `GET /public/rust/servers/:id/events` answers rows shaped
+// `{ id, kind, t, wipeId, steamId, frame }`, where `frame` is the whole frame
+// the plugin emitted — this module stores what it is given and indexes only the
+// columns it serves (PROTOCOL.md §8.4, and the `raw` column in schema.sql). So
+// everything a killfeed line needs is in `frame`, under the names the plugin
+// wrote, and this file is the one place that knows them.
+//
+// **It returns PARTS, not a sentence.** A component wants the names emphasised
+// and the detail muted, and a function returning `"Alice killed Bob"` forces
+// either a `dangerouslySetInnerHTML` or a re-parse. Parts also make this
+// testable without a DOM, which is the whole reason it is not a component.
+//
+// ── The rule for an unknown kind ──────────────────────────────────────────
+//
+// It renders as itself. A later protocol adds kinds, an operator's module may be
+// older than their game host, and a feed that DROPPED what it did not recognise
+// would be a page that quietly says less than the truth. The server's allowlist
+// has already decided this row may be seen (`server/catalogue.js`); what is left
+// here is presentation, and the honest presentation of a kind we have no words
+// for is its own name.
+
+import { duration, prefab } from './format.js'
+
+/**
+ * Kinds this feed asks for.
+ *
+ * `player.tally` is public and deliberately NOT here: it is an aggregate the
+ * plugin flushes every sixty seconds per active player (§8.6), so a feed
+ * including it would be mostly wood counts. It is the leaderboard's input, and
+ * the leaderboard is where it shows up.
+ */
+export const FEED_KINDS = Object.freeze([
+  'player.death',
+  'player.connected',
+  'player.disconnected',
+  'player.respawned',
+  'player.chat',
+  'server.wipe',
+  'server.initialized',
+  'server.shutdown',
+])
+
+/** The filters the feed offers, and the kinds each one asks the API for. */
+export const FILTERS = Object.freeze([
+  { id: 'all', label: 'Everything', kinds: FEED_KINDS },
+  { id: 'kills', label: 'Kills', kinds: ['player.death'] },
+  { id: 'chat', label: 'Chat', kinds: ['player.chat'] },
+  {
+    id: 'sessions',
+    label: 'Comings and goings',
+    kinds: ['player.connected', 'player.disconnected', 'player.respawned'],
+  },
+  { id: 'server', label: 'Server', kinds: ['server.wipe', 'server.initialized', 'server.shutdown'] },
+])
+
+export function kindsFor(filterId) {
+  const filter = FILTERS.find((f) => f.id === filterId)
+  return (filter || FILTERS[0]).kinds
+}
+
+/**
+ * One row as `{ tone, actor, join, verb, subject, detail }`.
+ *
+ * `actor` and `subject` are names and are emphasised; `verb` and `detail` are
+ * prose. Any of them may be empty. `tone` is the row's category, for the small
+ * colour the component gives it — never for deciding what a row means.
+ *
+ * `join` is what goes between the actor and the verb, and it exists for exactly
+ * one case: chat. "Brannock see you in september" is not a sentence anybody
+ * writes, and putting the colon in the message would put presentation inside the
+ * text a player typed.
+ */
+export function describe(row) {
+  const frame = (row && row.frame) || {}
+  const name = frame.name || null
+
+  switch (row && row.kind) {
+    case 'player.death':
+      return death(frame, name)
+
+    case 'player.connected':
+      return { tone: 'join', actor: name, verb: 'connected', subject: null, detail: '' }
+
+    case 'player.disconnected':
+      return {
+        tone: 'leave',
+        actor: name,
+        verb: 'disconnected',
+        subject: null,
+        // Two optional halves, and the session is the interesting one: the plugin
+        // omits `sessionSec` for a player who was already on when it loaded, so an
+        // absent value means "unknown", never zero (§8.4's note, and OnPlayerDisconnected).
+        detail: [frame.reason || null, frame.sessionSec ? `after ${duration(frame.sessionSec)}` : null]
+          .filter(Boolean)
+          .join(' · '),
+      }
+
+    case 'player.respawned':
+      return { tone: 'join', actor: name, verb: 'respawned', subject: null, detail: '' }
+
+    case 'player.chat':
+      return {
+        tone: 'chat',
+        actor: name,
+        join: ': ',
+        // The message is the row, so it goes in `verb` where a component renders
+        // it unemphasised — and it is the one field on this wire a player chooses
+        // the bytes of. React escapes it; nothing here may ever stop doing that.
+        verb: frame.message || '',
+        subject: null,
+        detail: frame.channel && frame.channel !== 'Global' ? frame.channel : '',
+      }
+
+    case 'server.wipe':
+      return {
+        tone: 'server',
+        actor: null,
+        verb: 'The map was wiped',
+        subject: null,
+        detail: frame.wipeId ? `new wipe ${frame.wipeId}` : '',
+      }
+
+    case 'server.initialized':
+      return { tone: 'server', actor: null, verb: 'The server came up', subject: null, detail: '' }
+
+    case 'server.shutdown':
+      return { tone: 'server', actor: null, verb: 'The server went down', subject: null, detail: '' }
+
+    default:
+      return { tone: 'other', actor: name, verb: String((row && row.kind) || 'unknown'), subject: null, detail: '' }
+  }
+}
+
+/**
+ * A death, which is four different sentences.
+ *
+ * The plugin distinguishes `player`, `self`, `npc` and `environment` precisely so
+ * that a reader does not have to guess from an absent field, and collapsing any
+ * two of them loses something (see `DescribeAttacker` in the bridge plugin). A
+ * killfeed that reported a fall as a kill by nobody is the failure this avoids.
+ */
+function death(frame, name) {
+  const where = [
+    frame.weapon ? `with ${prefab(frame.weapon)}` : null,
+    frame.distance ? `${Math.round(frame.distance)}m` : null,
+    frame.grid || null,
+    frame.sleeping ? 'while sleeping' : null,
+  ]
+    .filter(Boolean)
+    .join(' · ')
+
+  switch (frame.attackerType) {
+    case 'player':
+      return { tone: 'kill', actor: frame.attackerName || null, verb: 'killed', subject: name, detail: where }
+
+    case 'self':
+      return { tone: 'death', actor: name, verb: 'died by their own hand', subject: null, detail: where }
+
+    case 'npc':
+      return {
+        tone: 'death',
+        actor: prefab(frame.attackerName) || 'Something',
+        verb: 'killed',
+        subject: name,
+        detail: where,
+      }
+
+    // `environment` and anything else: falling, drowning, the world. `HitInfo`
+    // is legitimately null on this path, so an absent attacker type is this case
+    // rather than a missing field to complain about.
+    default:
+      return { tone: 'death', actor: name, verb: 'died', subject: null, detail: where }
+  }
+}
+
+export default { describe, FEED_KINDS, FILTERS, kindsFor }

client/src/lib/format.js

@@ -0,0 +1,136 @@
+// ── Formatting, with no dependencies and no React ─────────────────────────
+//
+// Every function here is pure and takes what the API answered, so the suite next
+// door can ask all of it without a DOM. That is deliberate: the client half's
+// real failures are timing and resolution (see `test/build.test.js`), which a
+// DOM-less runner cannot see — so the way to have any test coverage at all on
+// this side is to keep the parts that CAN be tested free of React.
+//
+// `Intl` does the work. It is in every browser core supports, it knows the
+// viewer's locale and their clock, and it is one fewer thing in a chunk an
+// operator ships.
+
+const RELATIVE = new Intl.RelativeTimeFormat(undefined, { numeric: 'auto' })
+
+const UNITS = [
+  ['year', 31536000],
+  ['month', 2592000],
+  ['week', 604800],
+  ['day', 86400],
+  ['hour', 3600],
+  ['minute', 60],
+  ['second', 1],
+]
+
+/**
+ * "3 minutes ago", from an ISO string or an epoch-millisecond number.
+ *
+ * Both shapes arrive from this module's own API: `updatedAt` is an ISO string
+ * the model produced, and an event's `t` is the millisecond stamp the plugin put
+ * on the frame. Accepting both here is what stops every caller remembering which
+ * is which.
+ */
+export function ago(value, now = Date.now()) {
+  const at = toMillis(value)
+  if (at === null) return 'never'
+
+  const seconds = Math.round((at - now) / 1000)
+  const magnitude = Math.abs(seconds)
+
+  // Under a minute, "in 0 seconds" is what `numeric: 'auto'` produces and it is
+  // not what anybody means. Say the thing.
+  if (magnitude < 45) return 'just now'
+
+  const [unit, size] = UNITS.find(([, s]) => magnitude >= s) || ['second', 1]
+  return RELATIVE.format(Math.round(seconds / size), unit)
+}
+
+/**
+ * The stamp on a feed row.
+ *
+ * **Today's rows get a time; everything older gets a date as well.** The feed can
+ * be filtered to a past wipe, and a row from six weeks ago rendered as `02:03 PM`
+ * reads as this afternoon — which the page walk found the moment it looked at the
+ * previous wipe: three events from August, all apparently a few minutes old.
+ *
+ * `now` is a parameter so the boundary is testable rather than a property of the
+ * machine the test runs on.
+ */
+export function clock(value, now = Date.now()) {
+  const at = toMillis(value)
+  if (at === null) return ''
+
+  const when = new Date(at)
+  const time = when.toLocaleTimeString(undefined, { hour: '2-digit', minute: '2-digit' })
+
+  const today = new Date(now)
+  const sameDay =
+    when.getFullYear() === today.getFullYear() &&
+    when.getMonth() === today.getMonth() &&
+    when.getDate() === today.getDate()
+
+  if (sameDay) return time
+  return `${when.toLocaleDateString(undefined, { month: 'short', day: 'numeric' })} ${time}`
+}
+
+/** A date, for a wipe: the thing people actually compare wipes by. */
+export function day(value) {
+  const at = toMillis(value)
+  if (at === null) return 'unknown'
+  return new Date(at).toLocaleDateString(undefined, { year: 'numeric', month: 'short', day: 'numeric' })
+}
+
+/**
+ * A session or a playtime, as `4h 12m`.
+ *
+ * Seconds are dropped above a minute and kept below it, because a two-hour
+ * session reported to the second is noise and a forty-second one reported as
+ * "0m" is wrong.
+ */
+export function duration(seconds) {
+  const total = Number(seconds)
+  if (!Number.isFinite(total) || total <= 0) return '—'
+  if (total < 60) return `${Math.round(total)}s`
+
+  const hours = Math.floor(total / 3600)
+  const minutes = Math.round((total % 3600) / 60)
+
+  if (hours === 0) return `${minutes}m`
+  return minutes === 0 ? `${hours}h` : `${hours}h ${minutes}m`
+}
+
+/** Thousands separators, in the viewer's locale. */
+export function count(value) {
+  const n = Number(value)
+  return Number.isFinite(n) ? n.toLocaleString() : '0'
+}
+
+/**
+ * A prefab short name as something readable — `patrolhelicopter` stays itself,
+ * `rifle.ak` becomes `rifle ak`.
+ *
+ * Deliberately a light touch rather than a lookup table. A table mapping every
+ * Rust prefab to a pretty name is a second copy of the game's item list that
+ * goes stale every wipe, and the short name is what a Rust player reads on their
+ * own server console anyway.
+ */
+export function prefab(name) {
+  if (!name) return ''
+  return String(name).replace(/[_.]+/g, ' ').trim()
+}
+
+/** A steam id, shortened for a table cell, without pretending it is a name. */
+export function shortId(steamId) {
+  const id = String(steamId || '')
+  return id.length > 10 ? `…${id.slice(-6)}` : id
+}
+
+function toMillis(value) {
+  if (value === null || value === undefined || value === '') return null
+  if (typeof value === 'number') return Number.isFinite(value) ? value : null
+
+  const parsed = Date.parse(value)
+  return Number.isNaN(parsed) ? null : parsed
+}
+
+export default { ago, clock, day, duration, count, prefab, shortId }

client/src/routes/admin/ModConfig.jsx

@@ -0,0 +1,554 @@
+// ── Admin · Rust · Mod configuration ──────────────────────────────────────
+//
+// R18. An admin picks a server, a plugin and a file, changes something, and the
+// plugin reloads. This module's second admin page, and the first that writes to
+// somebody's filesystem.
+//
+// **What is on the screen is decided by what is dangerous about the action.**
+// Four things are true here that are not true anywhere else in this module, and
+// each of them is a piece of the page rather than a line in a doc:
+//
+//   • a save can take a required plugin DOWN. So the reload target is a
+//     deliberate choice with the folder name as a guess, the result is reported
+//     as its own panel, and a rollback shows the server's own log line.
+//   • the form cannot express everything a config holds. A `null`, an empty
+//     array and anything past the depth limit are marked and sent to the raw
+//     tier rather than half-drawn.
+//   • three keys in the bridge's own config would cut the link carrying the
+//     edit, or split the server's history. They render read-only, with the
+//     reason (D38).
+//   • configs hold API keys and Discord webhooks. Those fields render masked
+//     with a reveal, which is about the shoulder rather than the wire: an admin
+//     can already read the file over SSH (D37), and the audit trail never
+//     records the values either way.
+
+import { useCallback, useEffect, useState } from 'react'
+
+import { ErrorState, Loading, useAsync } from '../../core.js'
+import { ago } from '../../lib/format.js'
+import api from '../../api.js'
+
+function Card({ title, subtitle, children, actions }) {
+  return (
+    <section className="panel" style={{ padding: '16px 18px', marginBottom: 18 }}>
+      <header style={{ display: 'flex', alignItems: 'baseline', gap: 12, marginBottom: 12 }}>
+        <h2 className="display" style={{ fontSize: '1.05rem', margin: 0, color: 'var(--head)' }}>
+          {title}
+        </h2>
+        {subtitle && (
+          <span className="sans dim" style={{ fontSize: '0.76rem' }}>
+            {subtitle}
+          </span>
+        )}
+        <span style={{ flex: 1 }} />
+        {actions}
+      </header>
+      {children}
+    </section>
+  )
+}
+
+function Warn({ children, tone = '#d08a2a' }) {
+  return (
+    <p className="sans" style={{ color: tone, fontSize: '0.78rem', margin: '6px 0 0' }}>
+      {children}
+    </p>
+  )
+}
+
+/** A value the form can edit: one row, typed by what the file already holds. */
+function Field({ field, value, onChange, revealed, onReveal }) {
+  const indent = 12 * Math.max(0, field.depth - 1)
+  const label = (
+    <label
+      className="sans"
+      style={{
+        flex: '0 0 300px',
+        paddingLeft: indent,
+        color: field.locked ? 'var(--ink)' : 'var(--head)',
+        fontSize: '0.84rem',
+        wordBreak: 'break-word',
+      }}
+      title={field.path}
+    >
+      {field.key}
+      {field.locked && (
+        <span className="dim" style={{ fontSize: '0.72rem' }}>
+          {' '}
+          · read-only
+        </span>
+      )}
+    </label>
+  )
+
+  if (field.type === 'object' || field.type === 'array') {
+    return (
+      <div style={{ display: 'flex', alignItems: 'center', gap: 10, padding: '10px 0 2px' }}>
+        <span
+          className="sans"
+          style={{ paddingLeft: indent, color: 'var(--head)', fontSize: '0.86rem', fontWeight: 500 }}
+        >
+          {field.key || '(the file)'}
+        </span>
+        <span className="sans dim" style={{ fontSize: '0.72rem' }}>
+          {field.type === 'array' ? `${field.count} entries` : `${field.count} settings`}
+          {field.advanced && field.reason ? ` · ${field.reason}` : ''}
+        </span>
+      </div>
+    )
+  }
+
+  if (field.advanced) {
+    return (
+      <div style={{ display: 'flex', alignItems: 'center', gap: 10, padding: '6px 0' }}>
+        {label}
+        <span className="sans dim" style={{ fontSize: '0.78rem' }}>
+          {field.reason} — edit it in Raw JSON
+        </span>
+      </div>
+    )
+  }
+
+  return (
+    <div style={{ display: 'flex', alignItems: 'center', gap: 10, padding: '6px 0' }}>
+      {label}
+      {field.type === 'boolean' ? (
+        <input
+          type="checkbox"
+          checked={Boolean(value)}
+          disabled={field.locked}
+          onChange={(event) => onChange(field, event.target.checked)}
+        />
+      ) : (
+        <input
+          className="input"
+          style={{ flex: 1, minWidth: 0 }}
+          type={field.secret && !revealed ? 'password' : 'text'}
+          value={value === undefined || value === null ? '' : String(value)}
+          disabled={field.locked}
+          onChange={(event) => onChange(field, event.target.value)}
+        />
+      )}
+      {field.secret && !field.locked && (
+        <button type="button" className="btn btn-ghost" onClick={() => onReveal(field.path)}>
+          {revealed ? 'Hide' : 'Show'}
+        </button>
+      )}
+    </div>
+  )
+}
+
+/** What the game said happened. The rollback case is the one worth reading. */
+function Report({ report }) {
+  if (!report) return null
+
+  const tone = report.rolledBack ? '#e05a5a' : 'var(--ink)'
+
+  return (
+    <div style={{ borderTop: '1px solid var(--line-soft)', paddingTop: 10, marginTop: 10 }}>
+      <p className="sans" style={{ color: tone, fontSize: '0.84rem', margin: 0 }}>
+        {report.rolledBack
+          ? 'The plugin did not come back, so the old file was put back automatically.'
+          : report.reloaded
+            ? 'Saved, and the plugin reloaded.'
+            : `Saved. ${report.reason || 'Nothing was reloaded.'}`}
+      </p>
+      {report.rolledBack && report.reason && (
+        <p className="sans dim" style={{ fontSize: '0.78rem', margin: '4px 0 0' }}>
+          {report.reason}
+        </p>
+      )}
+      {report.log && (
+        <pre
+          className="sans"
+          style={{
+            background: 'var(--line-soft)',
+            padding: 10,
+            marginTop: 8,
+            fontSize: '0.74rem',
+            maxHeight: 200,
+            overflow: 'auto',
+            whiteSpace: 'pre-wrap',
+          }}
+        >
+          {report.log}
+        </pre>
+      )}
+      {report.files.some((f) => f.rewritten) && (
+        <Warn>
+          The plugin rewrote the file as it loaded — both frameworks add any settings a config is
+          missing and save it back, so what is on disk now is not byte-for-byte what was sent.
+        </Warn>
+      )}
+    </div>
+  )
+}
+
+export default function ModConfig() {
+  const [serverId, setServerId] = useState('')
+  const [path, setPath] = useState('')
+  const [tier, setTier] = useState('form')
+  const [edits, setEdits] = useState({})
+  const [raw, setRaw] = useState('')
+  const [reload, setReload] = useState('')
+  const [revealed, setRevealed] = useState({})
+  const [busy, setBusy] = useState(false)
+  const [error, setError] = useState('')
+  const [report, setReport] = useState(null)
+  const [fileNonce, setFileNonce] = useState(0)
+
+  const { data: servers, error: serverError } = useAsync(() => api.admin.listServers(), [])
+
+  // The tree is asked for per server and never cached across one: what is on a
+  // host's disk has no stale answer worth showing, and a plugin loaded a minute
+  // ago has to be able to appear.
+  const { data: tree, error: treeError } = useAsync(
+    () => (serverId ? api.adminConfig.files(serverId) : Promise.resolve(null)),
+    [serverId],
+  )
+
+  const { data: file, error: fileError } = useAsync(
+    () => (serverId && path ? api.adminConfig.file(serverId, path) : Promise.resolve(null)),
+    [serverId, path, fileNonce],
+  )
+
+  const reset = useCallback(() => {
+    setEdits({})
+    setRevealed({})
+    setError('')
+  }, [])
+
+  // A freshly opened file starts from what the host holds: the raw editor's text
+  // and the reload target's guess both come from the answer rather than from
+  // whatever the previous file left behind.
+  //
+  // **The guess is only taken when the dropdown actually offers it.** A `<select>`
+  // whose value matches no `<option>` displays the first one, so a guess of
+  // `RunicGateway` — which is deliberately not offered, because the bridge cannot
+  // reload itself — put "nothing — just write the file" on the screen while the
+  // request carried `reload: RunicGateway`, and every save of our own config was
+  // refused for a reason the page had just said did not apply.
+  useEffect(() => {
+    if (!file) return
+    setRaw(file.text)
+
+    const offered = (tree ? tree.loaded : []).some(
+      (p) => p.name === file.plugin && p.name !== (tree && tree.self),
+    )
+
+    setReload(offered ? file.plugin : '')
+    reset()
+  }, [file, tree, reset])
+
+  useEffect(() => {
+    setPath('')
+    setReport(null)
+  }, [serverId])
+
+  if (serverError) return <ErrorState error={serverError} />
+  if (!servers) return <Loading />
+
+  const rows = servers.servers || servers || []
+  const change = (field, value) => setEdits((current) => ({ ...current, [field.path]: { field, value } }))
+
+  const save = async () => {
+    setBusy(true)
+    setError('')
+    setReport(null)
+
+    try {
+      const body =
+        tier === 'form'
+          ? {
+              path,
+              version: file.version,
+              ...(reload ? { reload } : {}),
+              // A number goes up as the TEXT that was typed. `2.50` stays
+              // `2.50` and `1.0` stays `1.0`; turning either into a JavaScript
+              // number here is precisely the bug the server half exists to
+              // avoid, and it would be reintroduced in the browser.
+              edits: Object.values(edits).map(({ field, value }) =>
+                field.type === 'number'
+                  ? { pointer: field.pointer, raw: String(value) }
+                  : { pointer: field.pointer, value },
+              ),
+            }
+          : { path, version: file.version, ...(reload ? { reload } : {}), text: raw }
+
+      const answer = await api.adminConfig.save(serverId, body)
+
+      setReport(answer.report || null)
+      if (!answer.changed) setError('Nothing changed, so nothing was written.')
+
+      // Re-read either way: a successful reload usually rewrites the file with
+      // the defaults it was missing, and a rollback means what is on disk is no
+      // longer what is on the screen.
+      setFileNonce((n) => n + 1)
+    } catch (err) {
+      setError(err.message || 'That save did not work.')
+    } finally {
+      setBusy(false)
+    }
+  }
+
+  const pending = Object.keys(edits).length
+
+  return (
+    <div style={{ maxWidth: 980 }}>
+      <p className="sans dim" style={{ fontSize: '0.82rem', marginTop: 0 }}>
+        These are the configuration files on the game host itself, read live through the bridge. A
+        save backs the file up, writes it, reloads the plugin you name, and <strong>puts the old
+        file back automatically</strong> if the plugin does not come back. The game’s data
+        directory — kit cooldowns, zone definitions, the permission store — is not settings and is
+        never listed here.
+      </p>
+
+      <Card title="Server" subtitle={`${rows.length} configured`}>
+        <select className="input" value={serverId} onChange={(event) => setServerId(event.target.value)}>
+          <option value="">Choose a server…</option>
+          {rows.map((row) => (
+            <option key={row.id} value={row.id}>
+              {row.name || row.id}
+            </option>
+          ))}
+        </select>
+        {tree && tree.root && (
+          <p className="sans dim" style={{ fontSize: '0.74rem', margin: '10px 0 0' }}>
+            {tree.root}
+            {tree.truncated ? ' · the walk stopped at its limit, so this is not the whole tree' : ''}
+          </p>
+        )}
+      </Card>
+
+      {serverId && treeError && <ErrorState error={treeError} />}
+
+      {serverId && !treeError && !tree && <Loading />}
+
+      {tree && (
+        <Card title="Files" subtitle="grouped by the plugin each one probably belongs to">
+          {tree.plugins.length === 0 && (
+            <p className="sans dim" style={{ fontSize: '0.82rem', margin: 0 }}>
+              This server reports no configuration files.
+            </p>
+          )}
+          {tree.plugins.map((group) => (
+            <div key={group.plugin} style={{ padding: '8px 0', borderTop: '1px solid var(--line-soft)' }}>
+              <div style={{ display: 'flex', alignItems: 'baseline', gap: 8 }}>
+                <strong className="sans" style={{ fontSize: '0.88rem', fontWeight: 500 }}>
+                  {group.title || group.plugin}
+                </strong>
+                <span className="sans dim" style={{ fontSize: '0.74rem' }}>
+                  {group.loaded ? `loaded · ${group.version}` : 'not loaded'}
+                  {group.isBridge ? ' · this bridge' : ''}
+                </span>
+              </div>
+              {group.files.map((entry) => (
+                <div
+                  key={entry.path}
+                  style={{ display: 'flex', alignItems: 'center', gap: 10, padding: '4px 0 4px 12px' }}
+                >
+                  <button
+                    type="button"
+                    className={entry.path === path ? 'btn btn-primary' : 'btn btn-ghost'}
+                    disabled={!entry.editable}
+                    onClick={() => {
+                      setPath(entry.path)
+                      setReport(null)
+                      setTier('form')
+                    }}
+                  >
+                    {entry.path}
+                  </button>
+                  <span className="sans dim" style={{ fontSize: '0.72rem' }}>
+                    {Math.round(entry.bytes / 102.4) / 10} KB
+                    {entry.modified ? ` · changed ${ago(entry.modified)}` : ''}
+                    {entry.reason ? ` · ${entry.reason}` : ''}
+                  </span>
+                </div>
+              ))}
+              {!group.loaded && (
+                <Warn>
+                  Nothing on this server is loaded under that name, so a save here is written and
+                  not reloaded. It applies the next time the plugin loads.
+                </Warn>
+              )}
+            </div>
+          ))}
+        </Card>
+      )}
+
+      {path && fileError && <ErrorState error={fileError} />}
+      {path && !fileError && !file && <Loading />}
+
+      {file && (
+        <Card
+          title={file.path}
+          subtitle={tier === 'form' ? `${pending} unsaved` : 'raw JSON'}
+          actions={
+            <>
+              <button
+                type="button"
+                className={tier === 'form' ? 'btn btn-primary' : 'btn btn-ghost'}
+                onClick={() => setTier('form')}
+              >
+                Settings
+              </button>
+              <button
+                type="button"
+                className={tier === 'raw' ? 'btn btn-primary' : 'btn btn-ghost'}
+                onClick={() => setTier('raw')}
+              >
+                Raw JSON
+              </button>
+            </>
+          }
+        >
+          {file.parseError && (
+            <Warn tone="#e05a5a">
+              This file is not valid JSON on the server ({file.parseError}), so there is nothing to
+              draw a form from. Raw JSON is the tier that can fix it.
+            </Warn>
+          )}
+
+          {file.isBridge && (
+            <Warn>
+              This is the bridge’s own configuration. Its address, port and server id are read-only
+              here — changing any of them from the website would cut the link carrying the change,
+              or strand every row this site holds for this server. They are editable on the host
+              itself. This plugin also cannot be reloaded from here.
+            </Warn>
+          )}
+
+          {tier === 'form' && file.fields && (
+            <div style={{ marginTop: 6 }}>
+              {file.fields
+                .filter((field) => field.path !== '')
+                .map((field) => (
+                  <Field
+                    key={field.path}
+                    field={field}
+                    value={
+                      edits[field.path]
+                        ? edits[field.path].value
+                        : field.type === 'number'
+                          ? field.raw
+                          : field.value
+                    }
+                    onChange={change}
+                    revealed={Boolean(revealed[field.path])}
+                    onReveal={(p) => setRevealed((current) => ({ ...current, [p]: !current[p] }))}
+                  />
+                ))}
+            </div>
+          )}
+
+          {tier === 'raw' && (
+            <textarea
+              className="input"
+              spellCheck={false}
+              value={raw}
+              onChange={(event) => setRaw(event.target.value)}
+              style={{ width: '100%', minHeight: 360, fontFamily: 'monospace', fontSize: '0.8rem' }}
+            />
+          )}
+
+          <div
+            style={{
+              display: 'flex',
+              alignItems: 'center',
+              gap: 10,
+              marginTop: 12,
+              borderTop: '1px solid var(--line-soft)',
+              paddingTop: 12,
+            }}
+          >
+            <label className="sans dim" style={{ fontSize: '0.78rem' }}>
+              Reload
+            </label>
+            {/* A guess, and it says so. The folder a config sits in is convention
+                rather than contract, so reloading it silently is how the wrong
+                plugin gets reloaded, reports success, and the edited one never
+                re-reads anything. */}
+            <select className="input" value={reload} onChange={(event) => setReload(event.target.value)}>
+              <option value="">nothing — just write the file</option>
+              {(tree ? tree.loaded : [])
+                .filter((p) => p.name !== tree.self)
+                .map((p) => (
+                  <option key={p.name} value={p.name}>
+                    {p.name}
+                  </option>
+                ))}
+            </select>
+            <span style={{ flex: 1 }} />
+            <button
+              type="button"
+              className="btn btn-primary"
+              disabled={busy || (tier === 'form' && pending === 0) || (tier === 'raw' && raw === file.text)}
+              onClick={save}
+            >
+              {busy ? 'Saving…' : 'Save and reload'}
+            </button>
+          </div>
+
+          {/* Beside the button, not at the top of the page. A save is made at the
+              bottom of a long form, and a refusal rendered above the fold is a
+              click that visibly did nothing. */}
+          {error && (
+            <p className="sans" style={{ color: '#e05a5a', fontSize: '0.82rem', margin: '8px 0 0' }}>
+              {error}
+            </p>
+          )}
+
+          <Report report={report} />
+        </Card>
+      )}
+
+      {serverId && <History serverId={serverId} nonce={fileNonce} />}
+    </div>
+  )
+}
+
+/** Who changed what, including the saves that were refused or undone. */
+function History({ serverId, nonce }) {
+  const { data } = useAsync(() => api.adminConfig.writes(serverId), [serverId, nonce])
+
+  if (!data || !data.writes || data.writes.length === 0) return null
+
+  return (
+    <Card title="Recent changes" subtitle="every save, including the ones that did not land">
+      {data.writes.map((row) => (
+        <div
+          key={row.id}
+          className="sans"
+          style={{ padding: '8px 0', borderTop: '1px solid var(--line-soft)', fontSize: '0.82rem' }}
+        >
+          <div style={{ display: 'flex', gap: 8, alignItems: 'baseline' }}>
+            <strong style={{ fontWeight: 500 }}>{row.path}</strong>
+            <span
+              className="sans"
+              style={{ fontSize: '0.74rem', color: row.outcome === 'applied' ? 'var(--ink)' : '#d08a2a' }}
+            >
+              {row.outcome}
+              {row.reloaded ? ' · reloaded' : ''}
+            </span>
+            <span className="sans dim" style={{ fontSize: '0.72rem' }}>
+              {ago(row.createdAt)}
+              {row.tier === 'raw' ? ' · raw' : ''}
+            </span>
+          </div>
+          {(row.changes || []).map((change, index) => (
+            <div key={`${row.id}-${index}`} className="dim" style={{ fontSize: '0.74rem' }}>
+              {change.path}
+              {change.from !== null && change.to !== null ? `: ${change.from} → ${change.to}` : ''}
+            </div>
+          ))}
+          {row.detail && (
+            <div className="dim" style={{ fontSize: '0.74rem' }}>
+              {row.detail}
+            </div>
+          )}
+        </div>
+      ))}
+    </Card>
+  )
+}

client/src/routes/admin/Permissions.jsx

@@ -0,0 +1,617 @@
+// ── Admin · Rust · Permissions ────────────────────────────────────────────
+//
+// R2's authoring surface, and this module's first admin page.
+//
+// **What is on it is decided by what an operator can get wrong**, rather than by
+// what the tables contain. Four states are invisible from the game and from a
+// list of grants, and every one of them looks exactly like success:
+//
+//   • a grant against somebody who has linked no Steam account — authored,
+//     stored, pushed nowhere;
+//   • a permission no loaded plugin has registered — the grant lands silently
+//     nowhere, because `GrantUserPermission` no-ops for an unregistered name;
+//   • a group member who has never connected — the store has no user record to
+//     put in a group yet, and the membership waits for their first connection;
+//   • a server whose last sync failed — the site is authoritative and the game
+//     has not heard it.
+//
+// So each of those is a sentence on this page rather than a number in a report.
+//
+// The screen never writes to a game. Every button here writes to the site and
+// the mirror's loop reconciles within seconds — except *Sync now*, which runs
+// that pass immediately because an operator who has just changed something
+// should not have to trust a timer to find out that a host is unreachable.
+
+import { useCallback, useState } from 'react'
+
+import { ErrorState, Loading, useAsync } from '../../core.js'
+import { ago } from '../../lib/format.js'
+import api from '../../api.js'
+
+const FLEET = '*'
+
+/** Shared furniture. The kit is nine exports and none of them is a table. */
+function Card({ title, subtitle, children, actions }) {
+  return (
+    <section className="panel" style={{ padding: '16px 18px', marginBottom: 18 }}>
+      <header style={{ display: 'flex', alignItems: 'baseline', gap: 12, marginBottom: 12 }}>
+        <h2 className="display" style={{ fontSize: '1.05rem', margin: 0, color: 'var(--head)' }}>
+          {title}
+        </h2>
+        {subtitle && (
+          <span className="sans dim" style={{ fontSize: '0.76rem' }}>
+            {subtitle}
+          </span>
+        )}
+        <span style={{ flex: 1 }} />
+        {actions}
+      </header>
+      {children}
+    </section>
+  )
+}
+
+function Row({ children, muted = false }) {
+  return (
+    <div
+      className="sans"
+      style={{
+        display: 'flex',
+        alignItems: 'center',
+        gap: 10,
+        padding: '8px 0',
+        borderTop: '1px solid var(--line-soft)',
+        fontSize: '0.86rem',
+        color: muted ? 'var(--ink)' : 'var(--head)',
+      }}
+    >
+      {children}
+    </div>
+  )
+}
+
+function Warn({ children }) {
+  return (
+    <p className="sans" style={{ color: '#d08a2a', fontSize: '0.78rem', margin: '6px 0 0' }}>
+      {children}
+    </p>
+  )
+}
+
+function Scope({ value }) {
+  return (
+    <span className="sans dim" style={{ fontSize: '0.74rem' }}>
+      {value === FLEET ? 'every server' : value}
+    </span>
+  )
+}
+
+/**
+ * One server's mirror state.
+ *
+ * `unresolved` and `pending` are rendered as sentences rather than counts
+ * because each is a different problem with a different fix, and both are
+ * invisible everywhere else on this page.
+ */
+function ServerState({ row, onSync, busy }) {
+  const report = row.report || {}
+  const unresolved = report.unresolved || []
+  const pending = report.pending || []
+
+  return (
+    <div style={{ padding: '10px 0', borderTop: '1px solid var(--line-soft)' }}>
+      <div style={{ display: 'flex', alignItems: 'center', gap: 10 }}>
+        <span className="sans" style={{ color: 'var(--head)', fontSize: '0.9rem' }}>
+          {row.serverId}
+        </span>
+        <span
+          className="sans"
+          style={{ fontSize: '0.76rem', color: row.inSync ? 'var(--ink)' : '#d08a2a' }}
+        >
+          {row.inSync ? 'in sync' : row.state === 'failed' ? 'out of sync' : 'pending'}
+        </span>
+        <span className="sans dim" style={{ fontSize: '0.74rem' }}>
+          {row.lastOkAt ? `last pushed ${ago(row.lastOkAt)}` : 'never pushed'}
+        </span>
+        <span style={{ flex: 1 }} />
+        <button type="button" className="btn btn-ghost" onClick={() => onSync(row.serverId)} disabled={busy}>
+          {busy ? 'Syncing…' : 'Sync now'}
+        </button>
+      </div>
+
+      {row.error && (
+        <p className="sans" style={{ color: '#e05a5a', fontSize: '0.78rem', margin: '4px 0 0' }}>
+          {row.error}
+        </p>
+      )}
+
+      {unresolved.length > 0 && (
+        <Warn>
+          {unresolved.join(', ')} — no plugin loaded on this server has registered{' '}
+          {unresolved.length === 1 ? 'that name' : 'those names'}, so a grant naming{' '}
+          {unresolved.length === 1 ? 'it' : 'them'} reaches nobody here. It will land by itself when
+          the plugin is back.
+        </Warn>
+      )}
+
+      {pending.length > 0 && (
+        <Warn>
+          {pending.length} {pending.length === 1 ? 'membership is' : 'memberships are'} waiting on a
+          first connection — this server has never seen those players, so it has no account to put
+          in a group yet.
+        </Warn>
+      )}
+    </div>
+  )
+}
+
+/** A hand edit, with the two answers to it. */
+function DriftRow({ row, onAdopt, onRevoke, busy }) {
+  const subject = row.username ? `${row.username} (${row.subject})` : row.subject
+
+  return (
+    <Row>
+      <span style={{ minWidth: 0, flex: 1 }}>
+        <strong style={{ fontWeight: 500 }}>{row.object}</strong>{' '}
+        <span className="dim" style={{ fontSize: '0.78rem' }}>
+          {row.kind === 'group-permission' ? `on group ${row.subject}` : `held by ${subject}`} ·{' '}
+          {row.serverId} · seen {ago(row.firstSeen)}
+        </span>
+      </span>
+      <button type="button" className="btn btn-ghost" onClick={() => onAdopt(row)} disabled={busy}>
+        Adopt
+      </button>
+      <button type="button" className="btn btn-ghost" onClick={() => onRevoke(row)} disabled={busy}>
+        Revoke
+      </button>
+    </Row>
+  )
+}
+
+/**
+ * The memberships the game could not place yet, as `steamId:group`.
+ *
+ * Read out of each server's own report, because it is the only thing that knows:
+ * a member who has never connected to a server has no user record there to put
+ * in a group (§12.2 rule 4), and from every other angle they look like a member.
+ * The server strip says how many; this is what puts it next to the person.
+ */
+function pendingSet(servers) {
+  const pending = new Map()
+
+  for (const server of servers) {
+    for (const entry of (server.report && server.report.pending) || []) {
+      if (!pending.has(entry)) pending.set(entry, [])
+      pending.get(entry).push(server.serverId)
+    }
+  }
+
+  return pending
+}
+
+function GroupCard({ group, catalogue, servers, pending, onChanged, setError }) {
+  const [busy, setBusy] = useState(false)
+  const [member, setMember] = useState('')
+  const [permission, setPermission] = useState('')
+
+  const act = async (fn) => {
+    setBusy(true)
+    setError('')
+    try {
+      await fn()
+      await onChanged()
+    } catch (err) {
+      setError(err.message || 'That did not work.')
+    } finally {
+      setBusy(false)
+    }
+  }
+
+  const save = (permissions) =>
+    act(() =>
+      api.adminPermissions.saveGroup(group.name, {
+        title: group.title,
+        rank: group.rank,
+        scope: group.scope,
+        permissions,
+      }),
+    )
+
+  return (
+    <Card
+      title={group.title || group.name}
+      subtitle={<>{group.name} · <Scope value={group.scope} /></>}
+      actions={
+        <button
+          type="button"
+          className="btn btn-ghost"
+          disabled={busy}
+          onClick={() => act(() => api.adminPermissions.deleteGroup(group.name))}
+        >
+          Delete
+        </button>
+      }
+    >
+      <div className="field-label">Permissions</div>
+      {group.permissions.length === 0 && (
+        <p className="sans dim" style={{ fontSize: '0.8rem', margin: '4px 0' }}>
+          This group carries nothing, so being in it does nothing.
+        </p>
+      )}
+      {group.permissions.map((perm) => (
+        <Row key={perm}>
+          <span style={{ flex: 1 }}>{perm}</span>
+          {!catalogue.some((entry) => entry.permission === perm) && (
+            <span className="sans" style={{ color: '#d08a2a', fontSize: '0.74rem' }}>
+              no server has registered this
+            </span>
+          )}
+          <button
+            type="button"
+            className="btn btn-ghost"
+            disabled={busy}
+            onClick={() => save(group.permissions.filter((p) => p !== perm))}
+          >
+            Remove
+          </button>
+        </Row>
+      ))}
+
+      <form
+        style={{ display: 'flex', gap: 8, marginTop: 10 }}
+        onSubmit={(event) => {
+          event.preventDefault()
+          if (!permission.trim()) return
+          save([...group.permissions, permission.trim().toLowerCase()])
+          setPermission('')
+        }}
+      >
+        <input
+          list="rust-permission-names"
+          className="input"
+          placeholder="kits.vip"
+          value={permission}
+          onChange={(event) => setPermission(event.target.value)}
+          style={{ flex: 1 }}
+        />
+        <button type="submit" className="btn" disabled={busy}>
+          Add permission
+        </button>
+      </form>
+
+      <div className="field-label" style={{ marginTop: 18 }}>
+        Members
+      </div>
+      {group.members.length === 0 && (
+        <p className="sans dim" style={{ fontSize: '0.8rem', margin: '4px 0' }}>
+          Nobody is in this group.
+        </p>
+      )}
+      {group.members.map((m) => {
+        const waiting = m.accounts
+          .map((account) => pending.get(`${account.steamId}:${group.name}`))
+          .filter(Boolean)
+          .flat()
+
+        return (
+        <Row key={m.userId}>
+          <span style={{ flex: 1 }}>
+            {m.username}
+            {m.accounts.length > 0 ? (
+              <span className="dim" style={{ fontSize: '0.76rem' }}>
+                {' '}
+                · {m.accounts.map((a) => a.name || a.steamId).join(', ')}
+              </span>
+            ) : (
+              <span style={{ color: '#d08a2a', fontSize: '0.76rem' }}>
+                {' '}
+                · has linked no Steam account, so this reaches nobody
+              </span>
+            )}
+            {waiting.length > 0 && (
+              <span style={{ color: '#d08a2a', fontSize: '0.76rem' }}>
+                {' '}
+                · waiting on their first connection to {[...new Set(waiting)].join(', ')}
+              </span>
+            )}
+          </span>
+          <button
+            type="button"
+            className="btn btn-ghost"
+            disabled={busy}
+            onClick={() => act(() => api.adminPermissions.removeMember(group.name, m.userId))}
+          >
+            Remove
+          </button>
+        </Row>
+        )
+      })}
+
+      <form
+        style={{ display: 'flex', gap: 8, marginTop: 10 }}
+        onSubmit={(event) => {
+          event.preventDefault()
+          if (!member.trim()) return
+          act(() => api.adminPermissions.addMember(group.name, member.trim()))
+          setMember('')
+        }}
+      >
+        <input
+          className="input"
+          placeholder="website username"
+          value={member}
+          onChange={(event) => setMember(event.target.value)}
+          style={{ flex: 1 }}
+        />
+        <button type="submit" className="btn" disabled={busy}>
+          Add member
+        </button>
+      </form>
+
+      {servers.length > 1 && group.scope !== FLEET && (
+        <p className="sans dim" style={{ fontSize: '0.74rem', margin: '10px 0 0' }}>
+          This group exists on {group.scope} only. The other servers never receive it.
+        </p>
+      )}
+    </Card>
+  )
+}
+
+export default function Permissions() {
+  const [reloads, setReloads] = useState(0)
+  const [busy, setBusy] = useState(false)
+  const [error, setError] = useState('')
+  const [form, setForm] = useState({ name: '', title: '', scope: FLEET })
+  const [grant, setGrant] = useState({ username: '', permission: '', scope: FLEET })
+
+  const { data, error: loadError } = useAsync(() => api.adminPermissions.overview(), [reloads])
+  const reload = useCallback(() => setReloads((n) => n + 1), [])
+
+  const act = async (fn) => {
+    setBusy(true)
+    setError('')
+    try {
+      await fn()
+      reload()
+    } catch (err) {
+      setError(err.message || 'That did not work.')
+    } finally {
+      setBusy(false)
+    }
+  }
+
+  if (loadError) return <ErrorState error={loadError} />
+  if (!data) return <Loading />
+
+  const servers = data.servers || []
+
+  return (
+    <div style={{ maxWidth: 900 }}>
+      {/* No heading of our own: core's admin chrome already draws the route's
+          title above the page, and a second one is the same words twice. */}
+      <p className="sans dim" style={{ fontSize: '0.82rem', marginTop: 0 }}>
+        This site is the author of record. Groups and grants written here are pushed into each
+        server’s own permission store, so every plugin that checks a permission honours them — and a
+        wipe does not lose them, because they are re-pushed when the server comes back.
+      </p>
+
+      {/* The option source, shared by both forms. A datalist rather than a select:
+          a name that no server has registered is still authorable — the plugin
+          may simply not be loaded right now — and the warning beside it is the
+          honest treatment, where a closed list would be a refusal. */}
+      <datalist id="rust-permission-names">
+        {(data.catalogue || []).map((entry) => (
+          <option key={entry.permission} value={entry.permission} />
+        ))}
+      </datalist>
+
+      {error && (
+        <p className="sans" style={{ color: '#e05a5a', fontSize: '0.84rem' }}>
+          {error}
+        </p>
+      )}
+
+      <Card
+        title="Servers"
+        subtitle={`${servers.length} configured`}
+        actions={
+          <button type="button" className="btn btn-ghost" disabled={busy} onClick={() => act(() => api.adminPermissions.sync())}>
+            Sync all
+          </button>
+        }
+      >
+        {servers.length === 0 && (
+          <p className="sans dim" style={{ fontSize: '0.82rem', margin: 0 }}>
+            No servers are configured yet, so nothing written here reaches a game.
+          </p>
+        )}
+        {servers.map((row) => (
+          <ServerState
+            key={row.serverId}
+            row={row}
+            busy={busy}
+            onSync={(id) => act(() => api.adminPermissions.sync(id))}
+          />
+        ))}
+      </Card>
+
+      {(data.drift || []).length > 0 && (
+        <Card
+          title="Changed in game"
+          subtitle="granted at a console, not by this site"
+        >
+          <p className="sans dim" style={{ fontSize: '0.8rem', marginTop: 0 }}>
+            Nothing here is undone automatically. <strong>Adopt</strong> records it as the site’s
+            own, so it survives the next wipe; <strong>Revoke</strong> removes it from the game on
+            the next sync.
+          </p>
+          {data.drift.map((row) => (
+            <DriftRow
+              key={row.id}
+              row={row}
+              busy={busy}
+              onAdopt={(d) => act(() => api.adminPermissions.adoptDrift(d.id))}
+              onRevoke={(d) => act(() => api.adminPermissions.revokeDrift(d.id))}
+            />
+          ))}
+        </Card>
+      )}
+
+      <Card title="Direct grants" subtitle="one person, one permission">
+        {(data.grants || []).length === 0 && (
+          <p className="sans dim" style={{ fontSize: '0.82rem', margin: 0 }}>
+            Nobody holds a permission of their own yet.
+          </p>
+        )}
+        {(data.grants || []).map((row) => (
+          <Row key={row.id}>
+            <span style={{ flex: 1 }}>
+              {row.username} · <strong style={{ fontWeight: 500 }}>{row.permission}</strong>{' '}
+              <Scope value={row.scope} />
+              {row.accounts.length === 0 && (
+                <span style={{ color: '#d08a2a', fontSize: '0.76rem' }}>
+                  {' '}
+                  · has linked no Steam account, so this reaches nobody
+                </span>
+              )}
+              {/* The same warning the group's permission list carries, and it
+                  matters more here: a grant naming a permission nothing has
+                  registered is the failure the plugin's pre-check exists for,
+                  and it is invisible on this row without it. */}
+              {!(data.catalogue || []).some((entry) => entry.permission === row.permission) && (
+                <span style={{ color: '#d08a2a', fontSize: '0.76rem' }}>
+                  {' '}
+                  · no server has registered this permission
+                </span>
+              )}
+              {row.source !== 'admin' && (
+                <span className="dim" style={{ fontSize: '0.74rem' }}> · {row.source}</span>
+              )}
+            </span>
+            <button
+              type="button"
+              className="btn btn-ghost"
+              disabled={busy}
+              onClick={() => act(() => api.adminPermissions.revoke(row.id))}
+            >
+              Remove
+            </button>
+          </Row>
+        ))}
+
+        <form
+          style={{ display: 'flex', gap: 8, marginTop: 12, flexWrap: 'wrap' }}
+          onSubmit={(event) => {
+            event.preventDefault()
+            if (!grant.username.trim() || !grant.permission.trim()) return
+            act(() =>
+              api.adminPermissions.grant({
+                username: grant.username.trim(),
+                permission: grant.permission.trim().toLowerCase(),
+                scope: grant.scope,
+              }),
+            )
+            setGrant({ username: '', permission: '', scope: FLEET })
+          }}
+        >
+          <input
+            className="input"
+            placeholder="website username"
+            value={grant.username}
+            onChange={(event) => setGrant({ ...grant, username: event.target.value })}
+            style={{ flex: '1 1 160px' }}
+          />
+          <input
+            list="rust-permission-names"
+            className="input"
+            placeholder="kits.vip"
+            value={grant.permission}
+            onChange={(event) => setGrant({ ...grant, permission: event.target.value })}
+            style={{ flex: '1 1 160px' }}
+          />
+          <select
+            className="input"
+            value={grant.scope}
+            onChange={(event) => setGrant({ ...grant, scope: event.target.value })}
+          >
+            <option value={FLEET}>every server</option>
+            {servers.map((row) => (
+              <option key={row.serverId} value={row.serverId}>
+                {row.serverId}
+              </option>
+            ))}
+          </select>
+          <button type="submit" className="btn" disabled={busy}>
+            Grant
+          </button>
+        </form>
+      </Card>
+
+      {(data.groups || []).map((group) => (
+        <GroupCard
+          key={group.name}
+          group={group}
+          catalogue={data.catalogue || []}
+          servers={servers}
+          pending={pendingSet(servers)}
+          onChanged={reload}
+          setError={setError}
+        />
+      ))}
+
+      <Card title="New group">
+        <form
+          style={{ display: 'flex', gap: 8, flexWrap: 'wrap' }}
+          onSubmit={(event) => {
+            event.preventDefault()
+            if (!form.name.trim()) return
+            act(() =>
+              api.adminPermissions.saveGroup(form.name.trim().toLowerCase(), {
+                title: form.title.trim() || form.name.trim(),
+                scope: form.scope,
+                permissions: [],
+              }),
+            )
+            setForm({ name: '', title: '', scope: FLEET })
+          }}
+        >
+          <input
+            className="input"
+            placeholder="vip"
+            value={form.name}
+            onChange={(event) => setForm({ ...form, name: event.target.value })}
+            style={{ flex: '1 1 140px' }}
+          />
+          <input
+            className="input"
+            placeholder="VIP"
+            value={form.title}
+            onChange={(event) => setForm({ ...form, title: event.target.value })}
+            style={{ flex: '1 1 140px' }}
+          />
+          <select
+            className="input"
+            value={form.scope}
+            onChange={(event) => setForm({ ...form, scope: event.target.value })}
+          >
+            <option value={FLEET}>every server</option>
+            {servers.map((row) => (
+              <option key={row.serverId} value={row.serverId}>
+                {row.serverId}
+              </option>
+            ))}
+          </select>
+          <button type="submit" className="btn" disabled={busy}>
+            Create
+          </button>
+        </form>
+        <p className="sans dim" style={{ fontSize: '0.74rem', margin: '10px 0 0' }}>
+          A group is created in each in-scope game as a real group, so plugins that read group
+          membership see it. A member who has never connected to a server joins it there on their
+          first connection — a direct grant reaches them straight away, which is the difference
+          worth knowing when somebody is waiting.
+        </p>
+      </Card>
+    </div>
+  )
+}

client/src/routes/admin/UserRustSections.jsx

@@ -0,0 +1,284 @@
+// ── This module's fill for `admin.users.detail` ───────────────────────────
+//
+// R13's first slot, and the phase criterion as an operator meets it: the Steam
+// id inside core's own user page, under core's own security panel.
+//
+// **The slot hands over `userId` and nothing else** — not a client. So this file
+// builds its own bindings for the routes the server half registered
+// (`api.adminUserLinks`), which is §3.5's rule applied to a slot: the two ends of
+// a call belong to the same module even when the URL between them is core's.
+//
+// **Most users have no Rust account, so most of the time this renders nothing.**
+// A panel that announced "no linked Steam accounts" on every user page in a
+// community that also runs a UO shard would be noise on the overwhelming
+// majority of them. Silence is the honest answer to "what does the Rust module
+// know about this person" when it is nothing.
+
+import { useCallback, useState } from 'react'
+import { ago, count, duration } from '../../lib/format.js'
+import { useAsync } from '../../core.js'
+import api from '../../api.js'
+
+/** Six lines of furniture the §3.4 kit does not carry, so it is vendored. */
+function SectionTitle({ children }) {
+  return (
+    <div className="field-label" style={{ marginBottom: 12, marginTop: 4 }}>
+      {children}
+    </div>
+  )
+}
+
+/** One server's all-time totals for this player. */
+function ServerRow({ server }) {
+  return (
+    <li
+      className="sans"
+      style={{ display: 'flex', justifyContent: 'space-between', gap: 12, fontSize: '0.86rem', color: 'var(--ink)' }}
+    >
+      <span style={{ minWidth: 0, color: 'var(--head)' }}>{server.serverName}</span>
+      <span className="dim" style={{ flex: 'none', fontSize: '0.8rem' }}>
+        {count(server.kills)} kills · {count(server.deaths)} deaths · {duration(server.playtimeSec)}
+        {server.wipes > 1 ? ` · ${server.wipes} wipes` : ''}
+      </span>
+    </li>
+  )
+}
+
+/** One linked Steam account: who it is, when it was linked, and the way out. */
+function LinkPanel({ userId, link, onRemoved }) {
+  const [busy, setBusy] = useState(false)
+  const [error, setError] = useState('')
+
+  async function unlink() {
+    setBusy(true)
+    setError('')
+    try {
+      await api.adminUserLinks.remove(userId, link.steamId)
+      await onRemoved()
+    } catch (err) {
+      setError(err.message || 'Could not unlink that account.')
+      setBusy(false)
+    }
+  }
+
+  return (
+    <div className="panel" style={{ padding: '14px 16px' }}>
+      <div style={{ display: 'flex', alignItems: 'flex-start', gap: 14 }}>
+        <div style={{ minWidth: 0, flex: 1 }}>
+          <div className="display" style={{ fontSize: '1rem', color: 'var(--head)' }}>
+            {link.name || link.steamId}
+          </div>
+          <div className="sans dim" style={{ fontSize: '0.76rem', marginTop: 2 }}>
+            {link.steamId} · linked {ago(link.linkedAt)}
+            {link.serverId ? ` on ${link.serverId}` : ''}
+            {link.lastSeen ? ` · last played ${ago(link.lastSeen)}` : ' · never played'}
+          </div>
+          {/* Worth showing only when they differ: the name on the link is what
+              they were called when they linked, the other is what the game last
+              saw. A rename is the ordinary reason, and an operator reading a
+              support ticket wants both names. */}
+          {link.linkedName && link.name && link.linkedName !== link.name && (
+            <div className="sans dim" style={{ fontSize: '0.72rem', marginTop: 2 }}>
+              Linked as “{link.linkedName}”.
+            </div>
+          )}
+        </div>
+        <button type="button" className="btn btn-ghost" onClick={unlink} disabled={busy} style={{ flex: 'none' }}>
+          {busy ? 'Unlinking…' : 'Unlink'}
+        </button>
+      </div>
+
+      {error && (
+        <p className="sans" style={{ color: '#e05a5a', fontSize: '0.8rem', margin: '8px 0 0' }}>{error}</p>
+      )}
+
+      {link.servers.length > 0 && (
+        <ul
+          style={{
+            listStyle: 'none',
+            margin: '12px 0 0',
+            padding: '12px 0 0',
+            borderTop: '1px solid var(--line-soft)',
+            display: 'flex',
+            flexDirection: 'column',
+            gap: 6,
+          }}
+        >
+          {link.servers.map((server) => (
+            <ServerRow key={server.serverId} server={server} />
+          ))}
+        </ul>
+      )}
+    </div>
+  )
+}
+
+/**
+ * Phase 7's half of the panel: what this person may do in game.
+ *
+ * It renders whenever they hold anything, INCLUDING when they have linked no
+ * Steam account — which is the one case worth going out of the way for. A grant
+ * against an unlinked person is authored, stored, pushed nowhere, and identical
+ * to a working one everywhere except here.
+ */
+function PermissionsPanel({ userId, data, onChanged }) {
+  const [busy, setBusy] = useState(false)
+  const [error, setError] = useState('')
+  const [permission, setPermission] = useState('')
+
+  const act = async (fn) => {
+    setBusy(true)
+    setError('')
+    try {
+      await fn()
+      await onChanged()
+    } catch (err) {
+      setError(err.message || 'That did not work.')
+    } finally {
+      setBusy(false)
+    }
+  }
+
+  if (!data) return null
+
+  const nothing = data.groups.length === 0 && data.grants.length === 0
+
+  return (
+    <div className="panel" style={{ padding: '14px 16px' }}>
+      <div className="field-label" style={{ marginBottom: 8 }}>
+        Permissions
+      </div>
+
+      {nothing && (
+        <p className="sans dim" style={{ fontSize: '0.8rem', margin: '0 0 8px' }}>
+          Nothing granted.
+        </p>
+      )}
+
+      {data.groups.map((group) => (
+        <div key={group.name} className="sans" style={{ fontSize: '0.84rem', padding: '4px 0' }}>
+          <span style={{ color: 'var(--head)' }}>{group.title || group.name}</span>{' '}
+          <span className="dim" style={{ fontSize: '0.76rem' }}>
+            group · {group.scope === '*' ? 'every server' : group.scope}
+            {group.permissions.length ? ` · ${group.permissions.join(', ')}` : ' · carries nothing'}
+          </span>
+        </div>
+      ))}
+
+      {data.grants.map((row) => (
+        <div
+          key={row.id}
+          className="sans"
+          style={{ display: 'flex', alignItems: 'center', gap: 8, fontSize: '0.84rem', padding: '4px 0' }}
+        >
+          <span style={{ flex: 1, color: 'var(--head)' }}>
+            {row.permission}{' '}
+            <span className="dim" style={{ fontSize: '0.76rem' }}>
+              {row.scope === '*' ? 'every server' : row.scope}
+              {row.source !== 'admin' ? ` · ${row.source}` : ''}
+            </span>
+          </span>
+          <button
+            type="button"
+            className="btn btn-ghost"
+            disabled={busy}
+            onClick={() => act(() => api.adminUserPermissions.revoke(userId, row.id))}
+            style={{ flex: 'none' }}
+          >
+            Remove
+          </button>
+        </div>
+      ))}
+
+      {!nothing && data.reaches.length === 0 && (
+        <p className="sans" style={{ color: '#d08a2a', fontSize: '0.78rem', margin: '8px 0 0' }}>
+          This account has linked no Steam id, so none of it reaches a game yet. It will apply by
+          itself when they link.
+        </p>
+      )}
+
+      <form
+        style={{ display: 'flex', gap: 8, marginTop: 10 }}
+        onSubmit={(event) => {
+          event.preventDefault()
+          if (!permission.trim()) return
+          act(() =>
+            api.adminUserPermissions.grant(userId, { permission: permission.trim().toLowerCase() }),
+          )
+          setPermission('')
+        }}
+      >
+        <input
+          className="input"
+          placeholder="kits.vip"
+          value={permission}
+          onChange={(event) => setPermission(event.target.value)}
+          style={{ flex: 1 }}
+        />
+        <button type="submit" className="btn" disabled={busy}>
+          Grant
+        </button>
+      </form>
+
+      {error && (
+        <p className="sans" style={{ color: '#e05a5a', fontSize: '0.8rem', margin: '8px 0 0' }}>
+          {error}
+        </p>
+      )}
+    </div>
+  )
+}
+
+export default function UserRustSections({ userId }) {
+  // Core's `useAsync` has no refresh, so a counter in the deps is how this
+  // re-reads after its own write (the same shape the player page uses).
+  const [reloads, setReloads] = useState(0)
+  const { data } = useAsync(() => api.adminUserLinks.list(userId), [userId, reloads])
+  const { data: permissions } = useAsync(
+    () => api.adminUserPermissions.list(userId),
+    [userId, reloads],
+  )
+  const reload = useCallback(() => setReloads((n) => n + 1), [])
+
+  // No `Loading` and no `ErrorState`, deliberately. This is a section inside
+  // somebody else's page: a spinner on every user page for a module most users
+  // have nothing to do with is worse than a section that appears when it has
+  // something, and a failure here must not replace core's own user detail with an
+  // error card.
+  // **Both reads decide whether this section exists**, and the second one is the
+  // reason. A browser walk found it: a person can hold permissions and have
+  // linked no Steam account — which is exactly the state an operator most needs
+  // to see, because it is the one that reaches nobody — and a section gated on
+  // links alone hides it completely.
+  const holdsSomething =
+    permissions && (permissions.groups.length > 0 || permissions.grants.length > 0)
+
+  if (!data || (data.links.length === 0 && !holdsSomething)) return null
+
+  return (
+    <section style={{ borderTop: '1px solid var(--line-soft)', marginTop: 30, paddingTop: 22 }}>
+      <SectionTitle>Rust</SectionTitle>
+
+      <div style={{ display: 'flex', flexDirection: 'column', gap: 12 }}>
+        {data.links.map((link) => (
+          <LinkPanel key={link.steamId} userId={userId} link={link} onRemoved={reload} />
+        ))}
+
+        {data.links.length > 0 && (
+          <p className="sans dim" style={{ fontSize: '0.74rem', margin: 0 }}>
+            A link is fleet-wide and totals are all-time, summed across every wipe. Unlinking here is
+            recorded in the activity log — it is the way back for a player who linked the wrong
+            account and cannot reach it in game.
+          </p>
+        )}
+
+        {/* Inside the same section rather than beside it: "who is this in game"
+            and "what may they do there" are one question asked twice, and an
+            operator reading a support ticket has both in front of them. The note
+            above belongs to the links, so it sits with them rather than under
+            the panel it would otherwise appear to describe. */}
+        <PermissionsPanel userId={userId} data={permissions} onChanged={reload} />
+      </div>
+    </section>
+  )
+}

client/src/routes/player/Account.jsx

@@ -0,0 +1,191 @@
+// ── The player's own Rust identity ────────────────────────────────────────
+//
+// `/player/rust` — where a signed-in player links the Steam account they play
+// on. It is the one page in this module a player is asked to *do* something on,
+// and the thing they are doing matters more than it looks: from phase 7 the link
+// is what in-game permissions are granted against, and from phase 13 it is what
+// rewards are handed to.
+//
+// **A player route renders no layout of its own.** Core wraps `/player/*` in its
+// own portal chrome, so this page starts at a heading — unlike the public pages
+// in this module, which render `PublicLayout` themselves.
+//
+// The three-step instruction at the top is not decoration. Nothing else on the
+// site tells a player that the code comes from the game, and a code field with no
+// explanation is a code field nobody can use.
+
+import { useCallback, useState } from 'react'
+import { ErrorState, Loading, useAsync } from '../../core.js'
+import { ago, shortId } from '../../lib/format.js'
+import api from '../../api.js'
+
+/** The code field, and the four answers it can produce. */
+function LinkForm({ onLinked }) {
+  const [code, setCode] = useState('')
+  const [busy, setBusy] = useState(false)
+  const [message, setMessage] = useState('')
+  const [error, setError] = useState('')
+
+  async function submit(event) {
+    event.preventDefault()
+    if (!code.trim() || busy) return
+
+    setBusy(true)
+    setMessage('')
+    setError('')
+
+    try {
+      const result = await api.playerLinks.confirm(code.trim())
+      setMessage(
+        result.already
+          ? 'That account was already linked to you.'
+          : `Linked ${result.link.name || shortId(result.link.steamId)}.`,
+      )
+      setCode('')
+      await onLinked()
+    } catch (err) {
+      // Every refusal the server sends is already a sentence aimed at a player —
+      // "run /link again", "run /unlink in game", "try again in a minute" — so
+      // this renders it rather than replacing it with one of its own. The three
+      // are not interchangeable, and a page that flattened them into "could not
+      // link that code" would send a player back to the server that is down.
+      setError(err.message || 'Could not link that code.')
+    } finally {
+      setBusy(false)
+    }
+  }
+
+  return (
+    <form onSubmit={submit} style={{ marginTop: 18 }}>
+      <div style={{ display: 'flex', gap: 10, alignItems: 'flex-end', flexWrap: 'wrap' }}>
+        <label style={{ display: 'block' }}>
+          <span className="field-label" style={{ display: 'block', marginBottom: 6 }}>Link code</span>
+          <input
+            value={code}
+            onChange={(e) => setCode(e.target.value.toUpperCase())}
+            placeholder="K7M2PQ"
+            // The plugin's alphabet has no O, 0, I or 1, so a player reading a
+            // code off their screen cannot produce one — but they can type a
+            // lowercase one, and the code is matched case-insensitively at the
+            // other end. Upper-casing here makes what they typed look like what
+            // they were shown.
+            maxLength={12}
+            autoComplete="off"
+            spellCheck={false}
+            className="input"
+            style={{ textTransform: 'uppercase', letterSpacing: '0.18em', width: 160 }}
+          />
+        </label>
+        <button type="submit" className="btn" disabled={busy || !code.trim()}>
+          {busy ? 'Checking…' : 'Link account'}
+        </button>
+      </div>
+
+      {message && (
+        <p className="sans" style={{ color: '#7fd0a4', fontSize: '0.86rem', margin: '10px 0 0' }}>{message}</p>
+      )}
+      {error && (
+        <p className="sans" style={{ color: '#e05a5a', fontSize: '0.86rem', margin: '10px 0 0' }}>{error}</p>
+      )}
+    </form>
+  )
+}
+
+/** One linked account, and the control that releases it. */
+function LinkRow({ link, onRemoved }) {
+  const [busy, setBusy] = useState(false)
+  const [error, setError] = useState('')
+
+  async function remove() {
+    setBusy(true)
+    setError('')
+    try {
+      await api.playerLinks.remove(link.steamId)
+      await onRemoved()
+    } catch (err) {
+      setError(err.message || 'Could not unlink that account.')
+      setBusy(false)
+    }
+  }
+
+  return (
+    <li className="panel" style={{ padding: '14px 16px', display: 'flex', alignItems: 'center', gap: 14 }}>
+      <div style={{ minWidth: 0, flex: 1 }}>
+        <div className="display" style={{ fontSize: '1rem', color: 'var(--head)' }}>
+          {link.name || shortId(link.steamId)}
+        </div>
+        <div className="sans dim" style={{ fontSize: '0.76rem', marginTop: 2 }}>
+          {link.steamId} · linked {ago(link.linkedAt)}
+          {link.serverId ? ` on ${link.serverId}` : ''}
+        </div>
+        {error && (
+          <p className="sans" style={{ color: '#e05a5a', fontSize: '0.8rem', margin: '6px 0 0' }}>{error}</p>
+        )}
+      </div>
+      <button type="button" className="btn btn-ghost" onClick={remove} disabled={busy} style={{ flex: 'none' }}>
+        {busy ? 'Unlinking…' : 'Unlink'}
+      </button>
+    </li>
+  )
+}
+
+export default function Account() {
+  // `useAsync` rather than this module's `usePolled`: nothing here changes unless
+  // the person looking at it changes it, and a page that re-asked every twenty
+  // seconds would be asking a question nobody is waiting on.
+  //
+  // **Core's `useAsync` has no `refresh`** — it re-runs when its deps change and
+  // that is the whole of its interface — so a counter in the deps is how a page
+  // re-reads after its own write. It blanks while it re-reads, which is right
+  // here and is exactly what made it wrong for a poll (see `hooks/usePolled.js`).
+  const [reloads, setReloads] = useState(0)
+  const { data, loading, error } = useAsync(() => api.playerLinks.list(), [reloads])
+  const links = data ? data.links : []
+
+  const reload = useCallback(() => setReloads((n) => n + 1), [])
+
+  return (
+    <div>
+      <div className="field-label" style={{ marginBottom: 12 }}>Steam accounts</div>
+
+      <p className="sans dim" style={{ margin: 0, fontSize: '0.86rem', maxWidth: '60ch' }}>
+        Linking tells this site which Steam account is yours, so your play on our servers appears
+        under your name here — and so rewards and permissions the site hands out can reach you in
+        game.
+      </p>
+
+      <ol className="sans dim" style={{ fontSize: '0.86rem', marginTop: 14, paddingLeft: 20, maxWidth: '60ch' }}>
+        <li>Join any of our Rust servers and type <code>/link</code> in chat.</li>
+        <li>The server replies with a six-character code, only you can see it, and it lasts five minutes.</li>
+        <li>Type it below. It works once.</li>
+      </ol>
+
+      <LinkForm onLinked={reload} />
+
+      {loading && <Loading />}
+      {error && <ErrorState error={error} />}
+
+      {data && links.length > 0 && (
+        <ul style={{ listStyle: 'none', margin: '22px 0 0', padding: 0, display: 'flex', flexDirection: 'column', gap: 10 }}>
+          {links.map((link) => (
+            <LinkRow key={link.steamId} link={link} onRemoved={reload} />
+          ))}
+        </ul>
+      )}
+
+      {data && links.length > 0 && (
+        <p className="sans dim" style={{ fontSize: '0.76rem', marginTop: 14, maxWidth: '60ch' }}>
+          A link covers every server this community runs — a Steam account is one person wherever
+          they play, while stats are kept per server and per wipe. You can also type
+          {' '}<code>/unlink</code> in game to release one.
+        </p>
+      )}
+
+      {data && links.length === 0 && (
+        <p className="sans dim" style={{ fontSize: '0.8rem', marginTop: 18 }}>
+          No Steam account is linked to this profile yet.
+        </p>
+      )}
+    </div>
+  )
+}

client/src/routes/public/ServerDetail.jsx

@@ -0,0 +1,184 @@
+// ── One server ────────────────────────────────────────────────────────────
+//
+// R8's page beneath the landing page, and the phase-4 criterion lives here: it
+// renders the last thing this server said while every server is off. Nothing on
+// it is a live call to a game host — every panel reads this module's own tables,
+// filled by the ingest cursor — so a shard that has been down for a week renders
+// a week-old killfeed and a leaderboard that is still correct, rather than an
+// error page.
+//
+// ── Everything selectable is in the URL ───────────────────────────────────
+//
+// Tab, feed filter, wipe and leaderboard sort all live in search parameters.
+// That costs a little ceremony here and buys the thing a community site is for:
+// "look at last wipe's leaderboard on Main" is a LINK. State held in `useState`
+// would make every one of those sentences unlinkable, lose the reader's place on
+// a refresh, and make the browser's back button leave the page instead of
+// undoing what they just clicked.
+//
+// `useSearchParams` comes from CORE's router (the shim in `src/shim/`), so it is
+// the same live navigation context core's own pages use. A module with its own
+// copy of react-router would get a `useParams` that returns nothing on a page
+// that otherwise renders perfectly — see `core.js`'s identity check.
+
+import { useSearchParams, useParams, Link } from 'react-router-dom'
+import { ErrorState, Loading, PageHeader, PublicLayout, useAsync } from '../../core.js'
+import Feed from '../../components/Feed.jsx'
+import Leaderboard from '../../components/Leaderboard.jsx'
+import Online from '../../components/Online.jsx'
+import Tabs from '../../components/Tabs.jsx'
+import WipeSelect, { ALL_TIME } from '../../components/WipeSelect.jsx'
+import Wipes from '../../components/Wipes.jsx'
+import { ago, count, day } from '../../lib/format.js'
+import api from '../../api.js'
+
+const TABS = [
+  { id: 'feed', label: 'Feed' },
+  { id: 'leaderboard', label: 'Leaderboard' },
+  { id: 'online', label: 'Online' },
+  { id: 'wipes', label: 'Wipes' },
+]
+
+export default function ServerDetail() {
+  const { id } = useParams()
+  const [params, setParams] = useSearchParams()
+
+  const { data, loading, error } = useAsync(() => api.servers.get(id), [id])
+  const server = data ? data.server : null
+
+  const tab = TABS.some((t) => t.id === params.get('tab')) ? params.get('tab') : 'feed'
+  const filter = params.get('show') || 'all'
+  const sort = params.get('sort') || 'kills'
+
+  // `wipe` absent means all time; `wipe=current` means whatever wipe the server
+  // is on now, which is a moving target and therefore a word rather than an id —
+  // a link somebody shares stays about "now" rather than about the map that was
+  // current when they sent it.
+  const wipeParam = params.get('wipe')
+  const wipeId = !wipeParam || wipeParam === ALL_TIME ? null : wipeParam === 'current' ? (server && server.wipeId) || null : wipeParam
+
+  const set = (key, value) => {
+    const next = new URLSearchParams(params)
+    if (!value || value === 'all' || (key === 'tab' && value === 'feed')) next.delete(key)
+    else next.set(key, value)
+    // `replace` so that flipping between tabs does not fill the reader's history
+    // with one entry per click — back should leave the page they arrived on.
+    setParams(next, { replace: true })
+  }
+
+  if (loading) {
+    return (
+      <PublicLayout shell="mid">
+        <Loading />
+      </PublicLayout>
+    )
+  }
+
+  // A 404 from the detail route is the one answer the other four cannot give:
+  // an unknown id has no events, no leaderboard and nobody online, and each of
+  // those empty lists is a perfectly good answer to its own question. So this is
+  // where "there is no such server" is said.
+  //
+  // **A mistyped address is not a fault, and must not be dressed as one.** The
+  // first version of this page rendered core's `ErrorState` under the heading and
+  // the result read "No such server / Something went wrong" — which sends a
+  // reader who fat-fingered a URL looking for an outage. `ErrorState` is kept for
+  // the case it is for: a request that failed for a reason nobody can see.
+  if (error || !server) {
+    const missing = !error || error.status === 404
+
+    return (
+      <PublicLayout shell="mid">
+        <PageHeader
+          title={missing ? 'No such server' : 'That server could not be loaded'}
+          lead={
+            missing
+              ? 'This address does not name a server this site follows.'
+              : 'The site could not read this server just now. It is worth trying again.'
+          }
+        />
+        {!missing && <ErrorState error={error} />}
+        <p className="sans" style={{ marginTop: 20 }}>
+          <Link to="/rust">Back to the server list</Link>
+        </p>
+      </PublicLayout>
+    )
+  }
+
+  return (
+    <PublicLayout shell="mid">
+      <PageHeader
+        eyebrow="Rust"
+        title={server.name}
+        lead={describeWorld(server)}
+      />
+
+      <div
+        className="sans"
+        style={{ display: 'flex', flexWrap: 'wrap', gap: 16, alignItems: 'baseline', marginBottom: 24 }}
+      >
+        <span style={{ color: server.online ? 'var(--mode-live, #5fb98a)' : 'var(--dim)' }}>
+          {server.online
+            ? `${count(server.players)}${server.maxPlayers ? ` / ${count(server.maxPlayers)}` : ''} online`
+            : 'Offline'}
+        </span>
+        {/* `lastSeenAt` is when a frame arrived; `updatedAt` is when this site
+            last wrote the row, which a FAILED poll does too. Reading the second
+            as the first is what made an offline server claim it had reported just
+            now, every thirty seconds, for as long as it stayed down. */}
+        <span style={{ color: 'var(--dim)', fontSize: '0.8rem' }}>
+          {server.lastSeenAt ? `last reported ${ago(server.lastSeenAt)}` : 'has never reported'}
+          {server.stale && server.lastSeenAt ? ' — out of date, so it is shown as offline' : ''}
+        </span>
+        <span style={{ marginLeft: 'auto' }}>
+          <WipeSelect
+            serverId={server.id}
+            value={wipeParam}
+            currentWipeId={server.wipeId}
+            onChange={(value) => set('wipe', value === ALL_TIME ? null : value)}
+          />
+        </span>
+      </div>
+
+      <Tabs tabs={TABS} active={tab} onSelect={(next) => set('tab', next)} label={`${server.name} sections`} />
+
+      {tab === 'feed' && (
+        <Feed serverId={server.id} wipeId={wipeId} filter={filter} onFilter={(value) => set('show', value)} />
+      )}
+
+      {tab === 'leaderboard' && (
+        <Leaderboard serverId={server.id} wipeId={wipeId} sort={sort} onSort={(value) => set('sort', value)} />
+      )}
+
+      {tab === 'online' && <Online serverId={server.id} online={server.online} />}
+
+      {tab === 'wipes' && (
+        <Wipes
+          serverId={server.id}
+          currentWipeId={server.wipeId}
+          selected={wipeId}
+          // Picking a wipe here is a navigation as much as a filter: it is the
+          // question "what happened during that map", and the answer is the feed.
+          onSelect={(value) => {
+            const next = new URLSearchParams(params)
+            next.set('wipe', value)
+            next.delete('tab')
+            setParams(next, { replace: true })
+          }}
+        />
+      )}
+    </PublicLayout>
+  )
+}
+
+/** The world line under the heading — the things a Rust player asks first. */
+function describeWorld(server) {
+  const parts = [
+    server.level || null,
+    server.worldSize ? `size ${count(server.worldSize)}` : null,
+    server.seed ? `seed ${server.seed}` : null,
+    server.wipedAt ? `wiped ${day(server.wipedAt)}` : null,
+  ].filter(Boolean)
+
+  return parts.length > 0 ? parts.join(' · ') : 'This server has not described itself yet.'
+}

client/src/routes/public/Servers.jsx

@@ -1,43 +1,45 @@
-// ── The server list ───────────────────────────────────────────────────────
+// ── The server list, and the module's landing page ────────────────────────
+//
+// R8: the list is what `/rust` renders, and `/rust/servers/:id` hangs beneath
+// it. The route is registered with an empty path in `entry.jsx` — core turns
+// that into the module's own namespace root — so this page's address is the one
+// an operator links to when they mean "our Rust servers".
 //
 // An ordinary React component. Nothing about being inside a module changes how
-// you write one — the only differences are where React comes from (core, via the
+// you write one; the only differences are where React comes from (core, via the
 // aliases in `vite.config.js`, so the import below looks completely normal and is
 // not) and where the chrome comes from (`../../core.js`, the shared UI kit).
 //
-// **Render `PublicLayout` yourself.** Core wraps public routes in its maintenance
-// gate and nothing else, so a page that omits the layout renders bare — no
-// header, no footer, no site chrome — which looks like a bug and is the contract
-// (§3.3). Admin and player routes are the other way round: core wraps those.
+// **Render `PublicLayout` yourself, and pass a `shell`.** Core wraps public
+// routes in its maintenance gate and nothing else, so a page that omits the
+// layout renders bare; without a `shell` it renders full-bleed with the footer
+// riding up underneath it. Name a width, never a class — the classes are core's
+// (MODULE_API.md §3.3).
 //
-// **And pass a `shell`.** The layout is the chrome; `shell` is the body — the
-// centred column, the vertical padding, and the thing that holds the footer at
-// the bottom of the viewport. Widths are 'narrow', 'mid' and 'wide'; name a
-// width, never a class, because the classes belong to core's stylesheet.
-//
-// This is the phase-1 version of the landing page R8 calls for. It lists servers
-// and links nowhere yet — `/rust/servers/:id` is the next phase's work — so it is
-// deliberately a table and not a design.
+// **This page never calls a game server.** Every field it renders comes from
+// this module's own tables, written by the ingest cursor, which is what lets it
+// render "offline, last seen an hour ago" instead of an error page when a shard
+// is down. The site's availability does not depend on the game's.
 
+import { Link } from 'react-router-dom'
 import { EmptyState, ErrorState, Loading, PageHeader, PublicLayout, useAsync } from '../../core.js'
+import { ago, count, day } from '../../lib/format.js'
 import api from '../../api.js'
 
-// A relative time that does not need a date library. `Intl.RelativeTimeFormat`
-// is in every browser core supports, and one fewer dependency in the chunk is
-// one fewer thing an operator ships.
-const RELATIVE = new Intl.RelativeTimeFormat(undefined, { numeric: 'auto' })
-
-function ago(iso) {
-  if (!iso) return 'never'
-  const seconds = Math.round((new Date(iso).getTime() - Date.now()) / 1000)
-  const [unit, size] = Math.abs(seconds) < 3600 ? ['minute', 60] : ['hour', 3600]
-  return RELATIVE.format(Math.round(seconds / size), unit)
+/** The "last reported" line, which has three cases and not one. */
+function reported(server) {
+  if (!server.lastSeenAt) return 'This server has never reported.'
+  if (server.stale) return `Last reported ${ago(server.lastSeenAt)} — out of date, so it is shown as offline.`
+  return `Last reported ${ago(server.lastSeenAt)}.`
 }
 
 export default function Servers() {
   // `useAsync` is core's fetch/loading/error hook, and the components below are
   // its states. Using them rather than rolling your own is what makes a module
   // page indistinguishable from a core one while it loads and while it fails.
+  //
+  // It loads once, deliberately. The DETAIL page polls, because that is where
+  // somebody watching a server sits; a list is a place people pass through.
   const { data, loading, error } = useAsync(() => api.servers.list(), [])
   const servers = data ? data.servers : []
 
@@ -66,37 +68,54 @@ export default function Servers() {
       )}
 
       {servers.length > 0 && (
-        <div style={{ display: 'grid', gap: '0.75rem' }}>
+        <div style={{ display: 'grid', gap: 12 }}>
           {servers.map((server) => (
-            <div
+            // The whole row is the link. A server's name being the only clickable
+            // part is the thing people miss on a list of cards, and `a.card`
+            // already carries core's own hover treatment.
+            <Link
               key={server.id}
+              to={`/rust/servers/${encodeURIComponent(server.id)}`}
+              className="card"
               style={{
                 display: 'flex',
                 justifyContent: 'space-between',
                 alignItems: 'baseline',
                 gap: '1rem',
-                padding: '0.75rem 0',
-                borderBottom: '1px solid rgba(128,128,128,0.25)',
+                padding: '16px 20px',
               }}
             >
-              <div>
-                <strong>{server.name}</strong>
-                {server.level ? <span style={{ opacity: 0.7 }}> · {server.level}</span> : null}
-                <div style={{ opacity: 0.7, fontSize: '0.9em' }}>
-                  {/* `stale` is a first-class part of the answer rather than
-                      something the page infers from a timestamp. The server
-                      decides what counts as stale, because the server is what
-                      knows how often a sidecar is supposed to check in. */}
-                  Last reported {ago(server.updatedAt)}
-                  {server.stale ? ' — out of date, so it is shown as offline.' : '.'}
-                </div>
-              </div>
-              <div style={{ whiteSpace: 'nowrap' }}>
+              <span>
+                <strong style={{ color: 'var(--ink)' }}>{server.name}</strong>
+                <span className="sans" style={{ display: 'block', color: 'var(--dim)', fontSize: '0.78rem', marginTop: 4 }}>
+                  {[
+                    server.level || null,
+                    server.worldSize ? `size ${count(server.worldSize)}` : null,
+                    server.wipedAt ? `wiped ${day(server.wipedAt)}` : null,
+                  ]
+                    .filter(Boolean)
+                    .join(' · ')}
+                </span>
+                <span className="sans" style={{ display: 'block', color: 'var(--dim)', fontSize: '0.74rem', marginTop: 2 }}>
+                  {/* `lastSeenAt`, never `updatedAt`. The second is when THIS
+                      site last wrote the row — which a failed poll does too — so
+                      a page reading it told a reader that a server down for three
+                      days had reported just now. And `stale` is a first-class
+                      part of the answer rather than something inferred from a
+                      timestamp: the server decides what counts as stale, because
+                      the server knows how often a sidecar is supposed to check in. */}
+                  {reported(server)}
+                </span>
+              </span>
+              <span
+                className="sans"
+                style={{ whiteSpace: 'nowrap', color: server.online ? 'var(--mode-live, #5fb98a)' : 'var(--dim)' }}
+              >
                 {server.online
-                  ? `${server.players}${server.maxPlayers ? ` / ${server.maxPlayers}` : ''} online`
+                  ? `${count(server.players)}${server.maxPlayers ? ` / ${count(server.maxPlayers)}` : ''} online`
                   : 'Offline'}
-              </div>
-            </div>
+              </span>
+            </Link>
           ))}
         </div>
       )}

client/test/feed.test.js

@@ -0,0 +1,141 @@
+// ── The feed's sentences ──────────────────────────────────────────────────
+//
+// `lib/feed.js` is the one part of the client half with real branching in it, and
+// it is pure on purpose so that a DOM-less runner can ask all of it. Everything
+// here is a claim about what a reader sees for a given frame — which is exactly
+// the kind of thing that rots silently, because a wrong killfeed line is still a
+// killfeed line.
+//
+// The fixtures are the frames the bridge plugin actually emits (its
+// `DescribeAttacker`, and PROTOCOL.md §8.4), not invented shapes.
+
+import test from 'node:test'
+import assert from 'node:assert/strict'
+import { createRequire } from 'node:module'
+
+import { describe, FEED_KINDS, FILTERS, kindsFor } from '../src/lib/feed.js'
+
+const row = (kind, frame = {}) => ({ id: 1, kind, t: Date.now(), wipeId: 'w1', steamId: '7656', frame })
+
+test('a player kill names the killer and the victim, in that order', () => {
+  const line = describe(row('player.death', {
+    name: 'Bob',
+    attackerType: 'player',
+    attackerName: 'Alice',
+    weapon: 'rifle.ak',
+    distance: 42.4,
+    grid: 'H7',
+  }))
+
+  assert.equal(line.tone, 'kill')
+  assert.equal(line.actor, 'Alice')
+  assert.equal(line.verb, 'killed')
+  assert.equal(line.subject, 'Bob')
+  assert.match(line.detail, /rifle ak/)
+  assert.match(line.detail, /42m/)
+  assert.match(line.detail, /H7/)
+})
+
+test('the four attacker types are four different sentences', () => {
+  // The plugin distinguishes them precisely so a reader does not have to guess
+  // from an absent field, and collapsing any two loses something: a fall reported
+  // as a kill by nobody is the failure this prevents.
+  const victim = { name: 'Bob' }
+
+  const npc = describe(row('player.death', { ...victim, attackerType: 'npc', attackerName: 'scientistnpc_full_any' }))
+  assert.equal(npc.actor, 'scientistnpc full any')
+  assert.equal(npc.subject, 'Bob')
+
+  const self = describe(row('player.death', { ...victim, attackerType: 'self' }))
+  assert.equal(self.actor, 'Bob')
+  assert.equal(self.subject, null)
+  assert.match(self.verb, /own hand/)
+
+  const environment = describe(row('player.death', { ...victim, attackerType: 'environment' }))
+  assert.equal(environment.actor, 'Bob')
+  assert.equal(environment.verb, 'died')
+  assert.equal(environment.subject, null)
+
+  // `HitInfo` is legitimately null on the environment path, so a death frame with
+  // NO attacker type at all is that case — not a missing field to render around.
+  const bare = describe(row('player.death', victim))
+  assert.equal(bare.verb, 'died')
+  assert.equal(bare.subject, null)
+})
+
+test('a sleeping victim is said to have been sleeping', () => {
+  const line = describe(row('player.death', { name: 'Bob', attackerType: 'player', attackerName: 'Alice', sleeping: true }))
+  assert.match(line.detail, /while sleeping/)
+})
+
+test('a disconnect with no session length says nothing about one', () => {
+  // The plugin OMITS `sessionSec` for a player who was already on when it loaded:
+  // an unknown session is not a session of no length. A line reading "after 0s"
+  // would be a lie this module invented.
+  const unknown = describe(row('player.disconnected', { name: 'Bob', reason: 'Quit' }))
+  assert.equal(unknown.detail, 'Quit')
+
+  const known = describe(row('player.disconnected', { name: 'Bob', reason: 'Quit', sessionSec: 3720 }))
+  assert.equal(known.detail, 'Quit · after 1h 2m')
+})
+
+test('a chat line carries the message as text, never as markup', () => {
+  // The message is the one field on this wire whose bytes a player chooses. It
+  // comes back as a STRING and is rendered as a React child, which escapes it;
+  // this test is here so that a later "render the message with formatting" idea
+  // has to delete an explicit assertion rather than quietly change behaviour.
+  const line = describe(row('player.chat', { name: 'Bob', message: '<img src=x onerror=alert(1)>', channel: 'Global' }))
+  assert.equal(line.verb, '<img src=x onerror=alert(1)>')
+  assert.equal(typeof line.verb, 'string')
+  // Global is the default channel and saying so on every line is noise; Team is
+  // information.
+  assert.equal(line.detail, '')
+  assert.equal(describe(row('player.chat', { name: 'B', message: 'hi', channel: 'Team' })).detail, 'Team')
+
+  // A chat row is the one line where the actor is a speaker rather than a
+  // subject, and "Brannock see you in september" is not a sentence anybody
+  // writes. The colon is presentation, so it lives here and not inside the text
+  // the player typed.
+  assert.equal(line.join, ': ')
+  assert.equal(describe(row('player.connected', { name: 'B' })).join, undefined)
+})
+
+test('an unknown kind renders as itself rather than vanishing', () => {
+  // A later protocol adds kinds, and a module may be older than the game host it
+  // is reading. The server's allowlist has already decided the row may be seen;
+  // dropping it here would make the page quietly say less than the truth.
+  const line = describe(row('player.teleported', { name: 'Bob' }))
+  assert.equal(line.verb, 'player.teleported')
+  assert.equal(line.tone, 'other')
+})
+
+test('the feed never asks for the aggregate kind', () => {
+  // `player.tally` is public and is flushed once a minute per active player
+  // (§8.6). A feed that included it would be mostly wood counts; it is the
+  // leaderboard's input, and that is where it shows up.
+  assert.ok(!FEED_KINDS.includes('player.tally'))
+  for (const filter of FILTERS) {
+    for (const kind of filter.kinds) {
+      assert.ok(FEED_KINDS.includes(kind), `filter "${filter.id}" asks for ${kind}, which the feed does not carry`)
+    }
+  }
+})
+
+test('every kind the feed asks for is one the public route will serve', () => {
+  // Held against the module's own allowlist rather than against a copy of it: a
+  // kind this file asked for and `server/catalogue.js` refuses is a filter that
+  // silently returns nothing, which reads as a quiet server.
+  //
+  // A CommonJS file from the server half, read by an ESM test through
+  // `createRequire`. Crossing the two halves is fine HERE and nowhere else:
+  // `test/` is not shipped, and `scripts/checkImports.js` governs what is.
+  const catalogue = createRequire(import.meta.url)('../../server/catalogue.js')
+  for (const kind of FEED_KINDS) {
+    assert.ok(catalogue.PUBLIC_KINDS.includes(kind), `the feed asks for ${kind}, which is not public`)
+  }
+})
+
+test('an unknown filter falls back to everything rather than to nothing', () => {
+  assert.deepEqual(kindsFor('nonsense'), FEED_KINDS)
+  assert.deepEqual(kindsFor(undefined), FEED_KINDS)
+})

client/test/format.test.js

@@ -0,0 +1,96 @@
+// ── Formatting ────────────────────────────────────────────────────────────
+//
+// Small functions, and the tests are small too — but three of them guard claims
+// that would otherwise be made by a page that looks fine: an unknown duration
+// rendered as zero, a timestamp in the wrong unit, and "in 0 seconds".
+//
+// Locale-dependent output is asserted loosely on purpose. `Intl` formats to the
+// RUNNER's locale, and a test pinned to "3 minutes ago" would be a test that
+// fails on a machine set to French while the page it describes is correct.
+
+import test from 'node:test'
+import assert from 'node:assert/strict'
+
+import { ago, clock, count, day, duration, prefab, shortId } from '../src/lib/format.js'
+
+const NOW = Date.parse('2026-09-16T12:00:00Z')
+
+test('a relative time picks the unit that fits', () => {
+  assert.match(ago(NOW - 3 * 60_000, NOW), /3/)
+  assert.match(ago(NOW - 5 * 3600_000, NOW), /5/)
+  assert.match(ago(NOW - 3 * 86400_000, NOW), /3/)
+})
+
+test('"just now" rather than "in 0 seconds"', () => {
+  // What `numeric: 'auto'` produces under a minute is not what anybody means,
+  // and a feed row a few seconds old is the commonest row on the page.
+  assert.equal(ago(NOW, NOW), 'just now')
+  assert.equal(ago(NOW - 10_000, NOW), 'just now')
+})
+
+test('both time shapes this module serves are accepted', () => {
+  // `updatedAt` is an ISO string the model produced; an event's `t` is the
+  // millisecond stamp the plugin put on the frame. A helper that took only one
+  // would be a helper every caller has to remember the type for.
+  assert.equal(ago('2026-09-16T11:57:00.000Z', NOW), ago(NOW - 3 * 60_000, NOW))
+})
+
+test('a missing time is "never", not the epoch', () => {
+  assert.equal(ago(null), 'never')
+  assert.equal(ago(undefined), 'never')
+  assert.equal(ago(''), 'never')
+  assert.equal(day(null), 'unknown')
+})
+
+test('an unknown duration is a dash, and a short one keeps its seconds', () => {
+  // The distinction the plugin makes and this must not lose: `sessionSec` is
+  // ABSENT for a player who was already on when it loaded, so zero and unknown
+  // arrive at the same function and must not render the same way.
+  assert.equal(duration(null), '—')
+  assert.equal(duration(0), '—')
+  assert.equal(duration(40), '40s')
+  assert.equal(duration(90), '2m')
+  assert.equal(duration(3720), '1h 2m')
+  assert.equal(duration(7200), '2h')
+})
+
+test('a prefab reads as words, without a lookup table', () => {
+  assert.equal(prefab('rifle.ak'), 'rifle ak')
+  assert.equal(prefab('scientistnpc_full_any'), 'scientistnpc full any')
+  assert.equal(prefab(null), '')
+})
+
+test('a steam id is shortened without pretending to be a name', () => {
+  assert.equal(shortId('76561198000000001'), '…000001')
+  assert.equal(shortId(''), '')
+})
+
+test('a count that is not a number is zero, never NaN on the page', () => {
+  assert.equal(count(undefined), '0')
+  assert.equal(count(null), '0')
+})
+
+test("a feed row from another day carries its date, not just a time", () => {
+  // Found by the page walk: with the feed filtered to the previous wipe, three
+  // events from six weeks ago rendered as `02:03 PM` and read as this afternoon.
+  // Today's rows stay bare, because a killfeed of today's fights does not want
+  // the date on every line.
+  // Asserted against `Intl` rather than against a literal: a 12-hour locale puts
+  // letters in a bare time ("05:30 AM"), so "has letters in it" is not the test —
+  // "is exactly the time, and nothing else" is.
+  const time = (at) => new Date(at).toLocaleTimeString(undefined, { hour: '2-digit', minute: '2-digit' })
+
+  const todayAt = NOW - 90 * 60_000
+  assert.equal(clock(todayAt, NOW), time(todayAt))
+
+  const olderAt = NOW - 46 * 86400_000
+  assert.ok(clock(olderAt, NOW).endsWith(time(olderAt)))
+  assert.ok(clock(olderAt, NOW).length > time(olderAt).length, 'an older row carries no date')
+
+  // Yesterday counts as another day even when it is only a few hours back — the
+  // boundary is the calendar, not a duration, because that is what a reader
+  // means by "what time was that".
+  const lateLastNight = Date.parse('2026-09-15T23:50:00')
+  const earlyToday = Date.parse('2026-09-16T00:20:00')
+  assert.ok(clock(lateLastNight, earlyToday).length > time(lateLastNight).length)
+})

client/test/registration.test.js

@@ -66,9 +66,22 @@ function fakeRg() {
     ),
     api: { request: async () => ({}), ApiError: Error, BASE: '/api/v1' },
     registry: {
+      // Core's own prefixing, character for character (client/src/modules/registry.js):
+      // the leading separators of the module's path are stripped and so are the
+      // TRAILING ones, which is what lets a module register `path: ''` and own its
+      // namespace root — `/rust` rather than `/rust/`.
+      //
+      // This fake did the obvious `${id}/${path}` until phase 4, and the day a
+      // module registered an index route it produced `rust/` while a real core
+      // produced `rust`. The suite then failed the nav check for a link that works
+      // perfectly in a browser. A fake that is nearly core is worse than one that
+      // is obviously not: it fails on the truth.
       registerRoutes(id, byArea) {
         for (const [area, list] of Object.entries(byArea || {})) {
-          for (const r of list || []) routes[area].push({ ...r, path: `${id}/${r.path}`, moduleId: id })
+          for (const r of list || []) {
+            const path = `${id}/${String(r.path || '').replace(/^\/+/, '')}`.replace(/\/+$/, '')
+            routes[area].push({ ...r, path, moduleId: id })
+          }
         }
       },
       registerNav(id, { area, items }) {
@@ -120,7 +133,12 @@ it('registers at least one route, namespaced under the module id', () => {
   assert.ok(all.length > 0, 'the chunk registered no routes at all')
   for (const [area, list] of Object.entries(registered.routes)) {
     for (const r of list) {
-      assert.ok(r.path.startsWith(`${manifest.id}/`), `${area} route "${r.path}" is not under the namespace`)
+      // Either the namespace root itself (a module's index route, `rust`) or
+      // something under it (`rust/servers/:id`). `startsWith('rust/')` alone
+      // would reject the root — and `startsWith('rust')` alone would accept a
+      // hypothetical `rustling`, which is why this is spelled out.
+      const under = r.path === manifest.id || r.path.startsWith(`${manifest.id}/`)
+      assert.ok(under, `${area} route "${r.path}" is not under the namespace`)
       assert.ok(r.element, `${area} route "${r.path}" has no element`)
     }
   }
@@ -176,6 +194,19 @@ it('a nav row that gates on a feature has a provider to resolve it', () => {
   assert.ok(registered.providers.size > 0, 'rows carry feature gates but no provider was registered')
 })
 
+it('the footer slot core declares is filled, and by a component', () => {
+  // R13's first slot, and the half that lives in the CHUNK: `site.footer.status`
+  // is a CLIENT slot, so it cannot be named in `module.json`'s `extensions` —
+  // that array is validated against the SERVER registry and naming a client slot
+  // there fails the load outright. Nothing else holds this registration, and an
+  // extension that stopped being registered is invisible: an unfilled slot
+  // renders nothing, exactly as an uninstalled module does.
+  const footer = registered.extensions.get('site.footer.status')
+  assert.ok(footer, 'nothing fills site.footer.status')
+  assert.equal(footer.id, manifest.id)
+  assert.equal(typeof footer.Component, 'function')
+})
+
 it('every slot module.json declares is one the chunk fills', () => {
   // `module.json` declares SERVER slots, and the loader validates those before
   // the chunk is ever served. Client slots cannot be declared there — the server

module.json

@@ -12,5 +12,6 @@
     "admin": ["/rust"],
     "player": ["/rust"]
   },
-  "capabilities": ["servers"]
+  "extensions": ["admin.users.detail"],
+  "capabilities": ["rust", "servers", "killfeed", "leaderboard", "presence", "wipes", "identity"]
 }

routes.manifest.json

@@ -1,16 +1,86 @@
 {
   "$comment": "Generated inventory of the URLs module-rust serves - the module half of the freeze core keeps in server/routes.manifest.json. DERIVED as the difference between a core without this module and the same core with it, both at the pinned ref in ci/core-ref.json. Regenerate with the frozen-manifest job in .gitea/workflows/pr-checks.yml; see server/scripts/frozenManifest.js.",
   "routes": [
+    {
+      "method": "DELETE",
+      "path": "/api/v1/admin/rust/permissions/grants/:id",
+      "tier": "public"
+    },
+    {
+      "method": "DELETE",
+      "path": "/api/v1/admin/rust/permissions/groups/:name",
+      "tier": "public"
+    },
+    {
+      "method": "DELETE",
+      "path": "/api/v1/admin/rust/permissions/groups/:name/members/:userId",
+      "tier": "public"
+    },
     {
       "method": "DELETE",
       "path": "/api/v1/admin/rust/servers/:id",
       "tier": "public"
     },
+    {
+      "method": "DELETE",
+      "path": "/api/v1/admin/users/:id/rust/links/:steamId",
+      "tier": "public"
+    },
+    {
+      "method": "DELETE",
+      "path": "/api/v1/admin/users/:id/rust/permissions/grants/:grantId",
+      "tier": "public"
+    },
+    {
+      "method": "DELETE",
+      "path": "/api/v1/player/rust/links/:steamId",
+      "tier": "public"
+    },
+    {
+      "method": "GET",
+      "path": "/api/v1/admin/rust/config/:serverId/file",
+      "tier": "public"
+    },
+    {
+      "method": "GET",
+      "path": "/api/v1/admin/rust/config/:serverId/files",
+      "tier": "public"
+    },
+    {
+      "method": "GET",
+      "path": "/api/v1/admin/rust/config/:serverId/writes",
+      "tier": "public"
+    },
+    {
+      "method": "GET",
+      "path": "/api/v1/admin/rust/permissions",
+      "tier": "public"
+    },
+    {
+      "method": "GET",
+      "path": "/api/v1/admin/rust/permissions/catalogue",
+      "tier": "public"
+    },
     {
       "method": "GET",
       "path": "/api/v1/admin/rust/servers",
       "tier": "public"
     },
+    {
+      "method": "GET",
+      "path": "/api/v1/admin/users/:id/rust/links",
+      "tier": "public"
+    },
+    {
+      "method": "GET",
+      "path": "/api/v1/admin/users/:id/rust/permissions",
+      "tier": "public"
+    },
+    {
+      "method": "GET",
+      "path": "/api/v1/player/rust/links",
+      "tier": "public"
+    },
     {
       "method": "GET",
       "path": "/api/v1/player/rust/servers",
@@ -21,6 +91,11 @@
       "path": "/api/v1/public/rust/servers",
       "tier": "public"
     },
+    {
+      "method": "GET",
+      "path": "/api/v1/public/rust/servers/:id",
+      "tier": "public"
+    },
     {
       "method": "GET",
       "path": "/api/v1/public/rust/servers/:id/events",
@@ -41,11 +116,56 @@
       "path": "/api/v1/public/rust/servers/:id/wipes",
       "tier": "public"
     },
+    {
+      "method": "POST",
+      "path": "/api/v1/admin/rust/config/:serverId/file",
+      "tier": "public"
+    },
+    {
+      "method": "POST",
+      "path": "/api/v1/admin/rust/permissions/drift/:id/adopt",
+      "tier": "public"
+    },
+    {
+      "method": "POST",
+      "path": "/api/v1/admin/rust/permissions/drift/:id/revoke",
+      "tier": "public"
+    },
+    {
+      "method": "POST",
+      "path": "/api/v1/admin/rust/permissions/grants",
+      "tier": "public"
+    },
+    {
+      "method": "POST",
+      "path": "/api/v1/admin/rust/permissions/groups/:name/members",
+      "tier": "public"
+    },
+    {
+      "method": "POST",
+      "path": "/api/v1/admin/rust/permissions/sync",
+      "tier": "public"
+    },
     {
       "method": "POST",
       "path": "/api/v1/admin/rust/servers/:id/test",
       "tier": "public"
     },
+    {
+      "method": "POST",
+      "path": "/api/v1/admin/users/:id/rust/permissions/grants",
+      "tier": "public"
+    },
+    {
+      "method": "POST",
+      "path": "/api/v1/player/rust/link",
+      "tier": "public"
+    },
+    {
+      "method": "PUT",
+      "path": "/api/v1/admin/rust/permissions/groups/:name",
+      "tier": "public"
+    },
     {
       "method": "PUT",
       "path": "/api/v1/admin/rust/servers/:id",

server/boot.js

@@ -44,6 +44,7 @@ const core = require('./core')
 const db = require('./model/servers/servers.db')
 const eventsDb = require('./model/events/events.db')
 const ingest = require('./ingest')
+const permSync = require('./permSync')
 const servers = require('./model/servers/servers.model')
 const sidecar = require('./sidecarClient')
 
@@ -106,7 +107,12 @@ async function refreshOne(server) {
     // whose plugin is not loaded yet, and reporting it as unreachable sends the
     // operator to look at the network instead of at the game server.
     if (!board.ok) {
-      await db.putState({ serverId: server.id, reachable: false, online: false })
+      // `markUnreachable`, not `putState`: nothing answered, so the only new fact
+      // is that nothing answered. Writing the whole row from that one fact would
+      // blank the hostname, the map, the seed and the wipe — the last thing this
+      // server said, which is exactly what the pages exist to render while it is
+      // off.
+      await db.markUnreachable(server.id, false)
       return
     }
 
@@ -117,7 +123,7 @@ async function refreshOne(server) {
       // The sidecar is up and has never heard from the game. Presence is emptied
       // rather than left alone: a stale list of players on a server nobody can
       // reach is worse than an empty one, because it looks current.
-      await db.putState({ serverId: server.id, reachable: true, online: false })
+      await db.markUnreachable(server.id, true)
       await ingest.applyBoards(server.id, {})
       return
     }
@@ -185,6 +191,11 @@ async function prune() {
 
 async function onBoot() {
   await refresh()
+  // The permission mirror owns its own loop and its own cadence (see
+  // `permSync.js`). It is started rather than run here: a first pass would write
+  // to every configured game server before the website had finished booting, and
+  // nothing about R2 is urgent enough to delay a listener for.
+  permSync.start()
   refreshTimer = setInterval(refresh, REFRESH_MS)
   ingestTimer = setInterval(ingestAll, INGEST_MS)
   pruneTimer = setInterval(prune, PRUNE_MS)
@@ -195,7 +206,7 @@ async function onBoot() {
     if (timer && typeof timer.unref === 'function') timer.unref()
   }
 
-  log.info('booted', { refreshMs: REFRESH_MS, ingestMs: INGEST_MS })
+  log.info('booted', { refreshMs: REFRESH_MS, ingestMs: INGEST_MS, permSyncMs: permSync.TICK_MS })
 }
 
 /**
@@ -207,6 +218,8 @@ async function onBoot() {
  * rather than cancelled, since nothing can stop a promise that is still running.
  */
 async function onShutdown() {
+  permSync.stop()
+
   for (const timer of [refreshTimer, ingestTimer, pruneTimer]) {
     if (timer) clearInterval(timer)
   }

server/catalogue.js

@@ -69,9 +69,20 @@ const STAFF_KINDS = Object.freeze([
   'player.unbanned',
   'player.login.attempt',
   'player.approved',
+  // Protocol 3's two account frames. Neither carries a code — the code travels
+  // through the player, which is what makes typing it proof — but both name a
+  // Steam id ALONGSIDE a website account's activity, which is exactly the join a
+  // public page must not be able to make: "this player is that person" is a fact
+  // about somebody's identity, not about what happened on the server.
+  'account.link.requested',
+  'account.unlinked',
+  // Protocol 4. Who holds which privilege in game, and the fact that somebody
+  // changed it by hand — a question about a person's standing and about an
+  // operator's own console, neither of which is a public page's business.
+  'perm.drift',
 ])
 
-/** Every kind protocol 2 defines. */
+/** Every kind protocol 3 defines. */
 const ALL_KINDS = Object.freeze([...PUBLIC_KINDS, ...STAFF_KINDS])
 
 const PUBLIC = new Set(PUBLIC_KINDS)

server/configEdit.js

@@ -0,0 +1,527 @@
+// ── Editing a plugin's config without rewriting the numbers ───────────────
+//
+// R18's base tier generates a form from a config file's VALUES — a boolean
+// becomes a toggle, a number a field, a string a text box — so it works for
+// whatever plugins an operator happens to have installed, including ones added
+// after we shipped. This file is the half of that which cannot be done naively.
+//
+// ── The trap ──────────────────────────────────────────────────────────────
+//
+// **JavaScript cannot tell `1` from `1.0`.** `JSON.parse('{"Rate":1.0}')` yields
+// the number `1`, and `JSON.stringify` writes it back as `1`. Both frameworks
+// deserialize a config into typed C# classes, so a naive read-modify-write
+// silently rewrites every whole-numbered float as an integer — **on fields
+// nobody touched** — and Newtonsoft may coerce it or may throw. A throw at load
+// means the plugin does not come back, and R6/R17 make four of them required.
+//
+// The fields at risk are exactly the ones a Rust server tunes: gather rates,
+// multipliers, scales.
+//
+// ── So nothing here ever parses, mutates and re-serialises ────────────────
+//
+// `scan` is a JSON reader that records, for every value, the **span of source
+// text** it came from. `applyEdits` splices new literals into those spans and
+// leaves every other byte of the document exactly as it was — including the
+// author's indentation, key order, and the `.0` on a float nobody edited.
+//
+// Two rules fall out of that and both are deliberate:
+//
+//  1. **A number's new value arrives as the literal text an admin typed**, never
+//     as a JavaScript number. `2.50` stays `2.50`; `1.0` stays `1.0`. The value
+//     never becomes a `Number` anywhere in this module, which is the only way to
+//     be sure it cannot be re-serialised into something else.
+//  2. **The generated form is type-preserving.** An edit may change what a value
+//     IS, never what KIND of thing it is; changing a number into a string, or
+//     adding a key, is a structural change and belongs in the raw-JSON tier,
+//     where the admin is editing the document itself.
+//
+// Nothing in this file touches the network, a database, or core.
+
+/** Value kinds this module names, in the language the form speaks. */
+const KINDS = ['object', 'array', 'string', 'number', 'boolean', 'null']
+
+/**
+ * A JSON number, by the grammar rather than by `Number()`.
+ *
+ * Used to judge a literal an admin typed. `Number('0x10')`, `Number('')` and
+ * `Number(' 1 ')` are all happily finite and none of the three is JSON, so the
+ * check has to be the grammar — which is also what keeps `1.0` and `1e3`
+ * acceptable, since preserving those is the entire point.
+ */
+const JSON_NUMBER = /^-?(?:0|[1-9]\d*)(?:\.\d+)?(?:[eE][+-]?\d+)?$/
+
+/**
+ * Words that make a value a secret.
+ *
+ * Matched against the key split into WORDS, not as a substring: `Monkey` and
+ * `Keybind` contain "key" and neither is a credential, and a config editor that
+ * masked every third field would teach an operator to ignore the mask.
+ */
+const SECRET_WORDS = new Set([
+  'key',
+  'keys',
+  'apikey',
+  'token',
+  'tokens',
+  'secret',
+  'secrets',
+  'password',
+  'passwd',
+  'pass',
+  'webhook',
+  'webhooks',
+  'credential',
+  'credentials',
+  'auth',
+])
+
+class JsonScanError extends Error {}
+
+/**
+ * Reads `text` into a tree of nodes that remember where they came from.
+ *
+ * Every node carries `start` and `end`, the half-open span of the value in the
+ * source. A caller that only wants the data can read `value`; a caller that
+ * wants to CHANGE the data uses the span, because the span is the only thing
+ * that survives a round trip unchanged.
+ *
+ * @param {string} text
+ * @returns {object} the root node
+ * @throws {JsonScanError} with a position, on anything that is not JSON
+ */
+function scan(text) {
+  const src = String(text)
+  let at = 0
+
+  function fail(message) {
+    throw new JsonScanError(`${message} at offset ${at}`)
+  }
+
+  function ws() {
+    while (at < src.length && (src[at] === ' ' || src[at] === '\t' || src[at] === '\n' || src[at] === '\r')) at += 1
+  }
+
+  function literal(word, value) {
+    if (src.startsWith(word, at)) {
+      const start = at
+      at += word.length
+      return { type: word === 'null' ? 'null' : 'boolean', value, start, end: at }
+    }
+    return null
+  }
+
+  function string() {
+    const start = at
+    at += 1 // the opening quote
+
+    let out = ''
+
+    while (at < src.length) {
+      const ch = src[at]
+
+      if (ch === '"') {
+        at += 1
+        return { type: 'string', value: out, start, end: at }
+      }
+
+      if (ch === '\\') {
+        const esc = src[at + 1]
+        at += 2
+
+        if (esc === 'u') {
+          const hex = src.slice(at, at + 4)
+          if (!/^[0-9a-fA-F]{4}$/.test(hex)) fail('bad unicode escape')
+          out += String.fromCharCode(parseInt(hex, 16))
+          at += 4
+        } else if (esc === 'n') out += '\n'
+        else if (esc === 't') out += '\t'
+        else if (esc === 'r') out += '\r'
+        else if (esc === 'b') out += '\b'
+        else if (esc === 'f') out += '\f'
+        else if (esc === '"' || esc === '\\' || esc === '/') out += esc
+        else fail('bad escape')
+
+        continue
+      }
+
+      out += ch
+      at += 1
+    }
+
+    return fail('unterminated string')
+  }
+
+  function number() {
+    const start = at
+    if (src[at] === '-') at += 1
+    while (at < src.length && /[0-9]/.test(src[at])) at += 1
+    if (src[at] === '.') {
+      at += 1
+      while (at < src.length && /[0-9]/.test(src[at])) at += 1
+    }
+    if (src[at] === 'e' || src[at] === 'E') {
+      at += 1
+      if (src[at] === '+' || src[at] === '-') at += 1
+      while (at < src.length && /[0-9]/.test(src[at])) at += 1
+    }
+
+    const raw = src.slice(start, at)
+    if (!JSON_NUMBER.test(raw)) fail(`'${raw}' is not a number`)
+
+    // `raw` is the fact; `value` is a convenience for rendering and comparison,
+    // and is never written back to the document.
+    return { type: 'number', value: Number(raw), raw, start, end: at }
+  }
+
+  function value() {
+    ws()
+    const ch = src[at]
+
+    if (ch === '{') return object()
+    if (ch === '[') return array()
+    if (ch === '"') return string()
+    if (ch === '-' || (ch >= '0' && ch <= '9')) return number()
+
+    const lit = literal('true', true) || literal('false', false) || literal('null', null)
+    if (lit) return lit
+
+    return fail('unexpected character')
+  }
+
+  function object() {
+    const start = at
+    at += 1 // {
+    const children = []
+    ws()
+
+    if (src[at] === '}') {
+      at += 1
+      return { type: 'object', children, start, end: at }
+    }
+
+    for (;;) {
+      ws()
+      if (src[at] !== '"') fail('expected a key')
+      const key = string()
+      ws()
+      if (src[at] !== ':') fail('expected a colon')
+      at += 1
+
+      const child = value()
+      child.key = key.value
+      child.keyStart = key.start
+      child.keyEnd = key.end
+      children.push(child)
+
+      ws()
+      if (src[at] === ',') {
+        at += 1
+        continue
+      }
+      if (src[at] === '}') {
+        at += 1
+        return { type: 'object', children, start, end: at }
+      }
+      return fail('expected a comma or a closing brace')
+    }
+  }
+
+  function array() {
+    const start = at
+    at += 1 // [
+    const children = []
+    ws()
+
+    if (src[at] === ']') {
+      at += 1
+      return { type: 'array', children, start, end: at }
+    }
+
+    for (;;) {
+      const child = value()
+      child.index = children.length
+      children.push(child)
+
+      ws()
+      if (src[at] === ',') {
+        at += 1
+        continue
+      }
+      if (src[at] === ']') {
+        at += 1
+        return { type: 'array', children, start, end: at }
+      }
+      return fail('expected a comma or a closing bracket')
+    }
+  }
+
+  const root = value()
+  ws()
+  if (at !== src.length) fail('trailing content')
+
+  return root
+}
+
+/** Splits a config key into words, across camelCase, snake_case, spaces and dots. */
+function words(key) {
+  return String(key)
+    .replace(/([a-z0-9])([A-Z])/g, '$1 $2')
+    .split(/[^A-Za-z0-9]+/)
+    .filter(Boolean)
+    .map((w) => w.toLowerCase())
+}
+
+/**
+ * Whether a key names a credential. See `SECRET_WORDS`.
+ *
+ * **A field flagged here is not emptied.** D37 decided the raw tier shows real
+ * values — an admin can already read the file over SSH — so the API answers with
+ * the document as it is, the form renders a flagged field masked with a reveal
+ * control, and the flag's load-bearing use is the audit trail, where the values
+ * genuinely never appear.
+ */
+function isSecretKey(key) {
+  return words(key).some((w) => SECRET_WORDS.has(w))
+}
+
+/** A pointer as a person reads it: `Settings.Rates[0].Wood`. */
+function pointerPath(pointer) {
+  return pointer
+    .map((step) => (typeof step === 'number' ? `[${step}]` : step))
+    .join('.')
+    .replace(/\.\[/g, '[')
+}
+
+/**
+ * Walks a scanned tree into the flat description the form is built from.
+ *
+ * **What is NOT here is as deliberate as what is.** There are no descriptions,
+ * no minimums, no maximums and no allowed-value sets, because a config file
+ * carries none: the key name is the entire label. An empty array and a `null`
+ * carry no type at all, so nothing can be inferred for them and they are marked
+ * `advanced` — the raw tier is where a value with no shape gets edited.
+ *
+ * @param {object} root      from `scan`
+ * @param {object} [options]
+ * @param {number} [options.maxDepth]  past this, a subtree is advanced-only
+ * @param {string[]} [options.locked]  top-level keys that may not be edited (D38)
+ */
+function describe(root, { maxDepth = 6, locked = [] } = {}) {
+  const lockedSet = new Set(locked.map((k) => String(k).toLowerCase()))
+  const fields = []
+
+  function visit(node, pointer, depth, inheritedSecret, inheritedLock) {
+    const key = pointer.length ? pointer[pointer.length - 1] : ''
+    const secret = inheritedSecret || (typeof key === 'string' && isSecretKey(key))
+    const isLocked =
+      inheritedLock || (pointer.length === 1 && typeof key === 'string' && lockedSet.has(key.toLowerCase()))
+
+    if (node.type === 'object' || node.type === 'array') {
+      const tooDeep = depth >= maxDepth
+
+      fields.push({
+        pointer: [...pointer],
+        path: pointerPath(pointer),
+        key: typeof key === 'number' ? `[${key}]` : key,
+        type: node.type,
+        depth,
+        count: node.children.length,
+        secret,
+        locked: isLocked,
+        // An empty container has nothing to infer a member's shape from, and a
+        // container past the depth limit has more shape than a form should try
+        // to draw. Both are honest reasons to send somebody to the raw tier.
+        advanced: tooDeep || node.children.length === 0,
+        ...(tooDeep ? { reason: 'deeper than the form will draw' } : {}),
+        ...(node.children.length === 0 ? { reason: 'empty, so there is no shape to read' } : {}),
+      })
+
+      if (tooDeep) return
+
+      node.children.forEach((child, index) => {
+        visit(child, [...pointer, node.type === 'array' ? index : child.key], depth + 1, secret, isLocked)
+      })
+      return
+    }
+
+    fields.push({
+      pointer: [...pointer],
+      path: pointerPath(pointer),
+      key: typeof key === 'number' ? `[${key}]` : key,
+      type: node.type,
+      depth,
+      // A number is reported as its LITERAL as well as its value. The literal is
+      // what the form must round-trip; the value is for display and sorting.
+      ...(node.type === 'number' ? { raw: node.raw } : {}),
+      value: node.value,
+      secret,
+      locked: isLocked,
+      // `null` has no type, so there is nothing to render but a raw editor.
+      advanced: node.type === 'null',
+      ...(node.type === 'null' ? { reason: 'null carries no type to read' } : {}),
+    })
+  }
+
+  visit(root, [], 0, false, false)
+  return fields
+}
+
+/** Finds the node a pointer names, or null. */
+function resolve(root, pointer) {
+  let node = root
+
+  for (const step of pointer) {
+    if (!node || (node.type !== 'object' && node.type !== 'array')) return null
+
+    if (node.type === 'array') {
+      if (typeof step !== 'number') return null
+      node = node.children[step]
+    } else {
+      node = node.children.find((child) => child.key === step)
+    }
+
+    if (!node) return null
+  }
+
+  return node
+}
+
+/** The exact source text a node was read from. */
+function literalOf(text, node) {
+  return String(text).slice(node.start, node.end)
+}
+
+/**
+ * Turns one edit into the literal that will be spliced in, or explains why not.
+ *
+ * `raw` is used verbatim for a number — that is the whole mechanism — and is
+ * validated against the JSON grammar first, because verbatim and unvalidated
+ * would be a way to write anything at all into somebody's config file.
+ */
+function literalFor(node, edit) {
+  if (node.type === 'number') {
+    const raw = String(edit.raw !== undefined && edit.raw !== null ? edit.raw : edit.value).trim()
+    if (!JSON_NUMBER.test(raw)) return { error: `'${raw}' is not a number` }
+    return { literal: raw }
+  }
+
+  if (node.type === 'string') {
+    if (typeof edit.value !== 'string') return { error: 'expected text' }
+    return { literal: JSON.stringify(edit.value) }
+  }
+
+  if (node.type === 'boolean') {
+    if (typeof edit.value !== 'boolean') return { error: 'expected true or false' }
+    return { literal: edit.value ? 'true' : 'false' }
+  }
+
+  return { error: `a ${node.type} is edited in the raw tier` }
+}
+
+/**
+ * Applies a set of edits to a document and returns the new text.
+ *
+ * Spans are spliced from the **end of the document backwards**, so that an
+ * earlier edit never moves a later edit's offsets. Every edit is resolved and
+ * checked before any splice happens: a refusal leaves the caller with the
+ * original text rather than a partly-edited one.
+ *
+ * @param {string} text
+ * @param {Array<{pointer: Array<string|number>, value?: any, raw?: string}>} edits
+ * @returns {{ text?: string, changes?: object[], error?: string }}
+ */
+function applyEdits(text, edits, { locked = [] } = {}) {
+  let root
+
+  try {
+    root = scan(text)
+  } catch (err) {
+    return { error: `the file on the server is not valid JSON: ${err.message}` }
+  }
+
+  const lockedSet = new Set(locked.map((k) => String(k).toLowerCase()))
+  const staged = []
+  const seen = new Set()
+
+  for (const edit of edits || []) {
+    const pointer = Array.isArray(edit.pointer) ? edit.pointer : null
+    if (!pointer || pointer.length === 0) return { error: 'an edit must name a field' }
+
+    const path = pointerPath(pointer)
+    if (seen.has(path)) return { error: `'${path}' is edited twice in one save` }
+    seen.add(path)
+
+    if (typeof pointer[0] === 'string' && lockedSet.has(pointer[0].toLowerCase())) {
+      return { error: `'${path}' cannot be edited from the website` }
+    }
+
+    const node = resolve(root, pointer)
+    if (!node) return { error: `'${path}' is not in this file` }
+
+    const { literal, error } = literalFor(node, edit)
+    if (error) return { error: `'${path}': ${error}` }
+
+    staged.push({
+      path,
+      pointer,
+      start: node.start,
+      end: node.end,
+      from: literalOf(text, node),
+      to: literal,
+      secret: pointer.some((step) => typeof step === 'string' && isSecretKey(step)),
+    })
+  }
+
+  // Nothing to do is not an error, but it must not produce a write either: a
+  // save with no changes would spend a reload — and a reload is the one part of
+  // this feature that can take a plugin down.
+  const changed = staged.filter((s) => s.from !== s.to)
+  if (changed.length === 0) return { text: String(text), changes: [] }
+
+  let out = String(text)
+
+  for (const edit of [...changed].sort((a, b) => b.start - a.start)) {
+    out = out.slice(0, edit.start) + edit.to + out.slice(edit.end)
+  }
+
+  // The result must still be JSON. It always is when the pieces are — this is a
+  // guard against a bug in this file, not against the caller.
+  try {
+    scan(out)
+  } catch (err) {
+    return { error: `the edit produced something that is not JSON: ${err.message}` }
+  }
+
+  return { text: out, changes: changed.map(redactChange) }
+}
+
+/**
+ * What the audit trail records for one changed field.
+ *
+ * **A secret's values are never written down.** The raw tier shows real values
+ * to an admin who asks for them, which is a deliberate decision (D37) about a
+ * page somebody has to open — but an activity log is read by more people, for
+ * longer, and usually by somebody who was not there. Those are different
+ * exposures and they get different answers.
+ */
+function redactChange(change) {
+  return {
+    path: change.path,
+    from: change.secret ? '***' : change.from,
+    to: change.secret ? '***' : change.to,
+    ...(change.secret ? { secret: true } : {}),
+  }
+}
+
+module.exports = {
+  KINDS,
+  JSON_NUMBER,
+  JsonScanError,
+  scan,
+  describe,
+  resolve,
+  applyEdits,
+  isSecretKey,
+  pointerPath,
+  words,
+}

server/db/purge.sql

@@ -19,6 +19,21 @@
 -- it knows this module registered, because it is the side that knows which
 -- registrant owned what.
 
+-- Phase 7b.
+DROP TABLE IF EXISTS rust_config_writes;
+
+-- Phase 7. Children before parents: every one of these carries a foreign key
+-- into `rust_servers`, `users` or `rust_perm_groups`.
+DROP TABLE IF EXISTS rust_perm_catalogue;
+DROP TABLE IF EXISTS rust_perm_sync;
+DROP TABLE IF EXISTS rust_perm_revocations;
+DROP TABLE IF EXISTS rust_perm_drift;
+DROP TABLE IF EXISTS rust_perm_pushed;
+DROP TABLE IF EXISTS rust_perm_grants;
+DROP TABLE IF EXISTS rust_perm_group_members;
+DROP TABLE IF EXISTS rust_perm_group_permissions;
+DROP TABLE IF EXISTS rust_perm_groups;
+DROP TABLE IF EXISTS rust_account_links;
 DROP TABLE IF EXISTS rust_ingest_cursor;
 DROP TABLE IF EXISTS rust_presence;
 DROP TABLE IF EXISTS rust_events;

server/db/schema.sql

@@ -291,6 +291,315 @@ CREATE TABLE IF NOT EXISTS rust_ingest_cursor (
 );
 
 
+-- ── Who owns which Steam account ──────────────────────────────────────────
+--
+-- R1's identity link, and the reason it is a table rather than a column on
+-- `rust_players`: a link is a fact about a WEBSITE USER that happens to be keyed
+-- by a Steam id, and it outlives every row this module writes about play. A
+-- column here would be null for the overwhelming majority of players and would
+-- be deleted by any sweep that pruned inactive ones.
+--
+-- **Keyed on `steam_id` alone, fleet-wide.** `rust_players` already made that
+-- call in protocol 2 and it is the truth of the thing: a Steam account is one
+-- person across every server an operator runs, where stats are per server and
+-- per wipe. Linking on one server links for the fleet, because there is nothing
+-- else it could honestly mean.
+--
+-- **One Steam id, at most one user** — that is what the primary key buys, and it
+-- is load-bearing rather than tidy. Phase 7 makes the site the author of who may
+-- do what in game and phase 13 makes it the thing that hands out loot; both are
+-- grants against a Steam id, and both assume the question "whose is this?" has
+-- exactly one answer.
+--
+-- The reverse is deliberately NOT constrained: one website user may hold several
+-- Steam accounts. People have a second account, or a family shares a site login,
+-- and refusing that would be inventing a rule the game does not have.
+--
+-- `ON DELETE CASCADE` from `users`: a deleted account's links go with it. The
+-- alternative is a row naming a user id that resolves to nobody, which every
+-- read would then have to defend against.
+CREATE TABLE IF NOT EXISTS rust_account_links (
+  steam_id   VARCHAR(32)  NOT NULL PRIMARY KEY,
+  user_id    INT          NOT NULL,
+  -- What the player was called in game when they linked. A display name, kept
+  -- so an operator reading the admin panel sees a person rather than a number;
+  -- never used to identify anybody, because a Rust name changes on a whim.
+  name       VARCHAR(191) NULL,
+  -- Which server minted the code. Not part of the identity — the link is
+  -- fleet-wide — but an operator asking "where did this come from" has no other
+  -- way to find out, and a support conversation starts there.
+  server_id  VARCHAR(64)  NULL,
+  linked_at  DATETIME     NOT NULL DEFAULT CURRENT_TIMESTAMP,
+  CONSTRAINT fk_rust_links_user FOREIGN KEY (user_id) REFERENCES users (id) ON DELETE CASCADE,
+  KEY idx_rust_links_user (user_id)
+) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4;
+
+
+-- ── Site-owned permissions (phase 7, R2) ──────────────────────────────────
+--
+-- The website is the author of record for who may do what in game, and the
+-- framework's own permission store is an ENFORCEMENT CACHE. That is one
+-- sentence with three consequences, and the tables below are shaped by them:
+--
+--   • Every third-party plugin honours a site grant with no adapter, because
+--     they all already call `UserHasPermission`. Nothing here is read by the
+--     game directly; it is pushed into the store the game already consults.
+--   • A wipe stops being a data-loss event. The game forgets and the site does
+--     not, so the next sync puts it all back.
+--   • A hand edit is REPORTED, never silently overwritten (D31). Which means
+--     the site has to be able to tell a grant it made from one somebody typed
+--     at a console — and that is a fact only the site can hold, because the
+--     store records who granted a permission nowhere.
+--
+-- ── A grant is against a WEBSITE USER (D28) ───────────────────────────────
+--
+-- Not against a Steam id, though a Steam id is what reaches the game. The site
+-- authors privilege for a PERSON: phase 13's earned entitlements follow whoever
+-- earned them, and an account unlinked from a person takes their privileges
+-- with it. The Steam ids are resolved from `rust_account_links` at push time,
+-- so a player who links a second account gets what they hold on both — which is
+-- the honest reading of "this person may do this".
+--
+-- A user with no linked account is authored against perfectly well and simply
+-- reaches nobody until they link. That is visible on the admin screen rather
+-- than silent, because a grant that reaches nothing looks identical to a grant
+-- that worked from every other angle.
+--
+-- ── Scope (D29) ───────────────────────────────────────────────────────────
+--
+-- Every authored row carries one: a server id, or `*` for the whole fleet. The
+-- game stores permissions per server (each has its own store), an operator
+-- running a modded server and a vanilla one will not want one set on both, and
+-- a single-server community never has to think about it.
+
+
+-- ── Groups ────────────────────────────────────────────────────────────────
+--
+-- Mirrored into the game as REAL groups (D30) rather than flattened into
+-- per-player grants. Third-party plugins read group membership, BetterChat's
+-- group API (R15, phase 17) has something to hang on, and an operator reading
+-- `oxide.show groups` sees what the website shows.
+--
+-- The cost of that fidelity is written down in PLAN.md §12.2 rule 4 and does
+-- not go away: **a player the store has never seen cannot be put in a group**,
+-- while a direct grant to the same id works immediately. The sync reports those
+-- members as pending and the membership lands on their first connection.
+--
+-- The name is the primary key, fleet-wide, even though the row carries a scope:
+-- one `vip` on the site is one `vip` in the game, pushed to the servers its
+-- scope names. Two groups of the same name with different scopes would be two
+-- definitions of one name in every store that received both.
+CREATE TABLE IF NOT EXISTS rust_perm_groups (
+  name        VARCHAR(64)   NOT NULL PRIMARY KEY,
+  title       VARCHAR(120)  NOT NULL DEFAULT '',
+  rank        INT           NOT NULL DEFAULT 0,
+  scope       VARCHAR(64)   NOT NULL DEFAULT '*',
+  created_at  DATETIME      NOT NULL DEFAULT CURRENT_TIMESTAMP,
+  updated_at  DATETIME      NOT NULL DEFAULT CURRENT_TIMESTAMP
+);
+
+
+-- What each group carries. A row per permission rather than a list on the group
+-- for the ordinary reason: "which groups grant kits.vip" is the question an
+-- operator asks when they are about to remove a plugin, and that is a WHERE
+-- clause here and a scan of every row in the other shape.
+CREATE TABLE IF NOT EXISTS rust_perm_group_permissions (
+  group_name  VARCHAR(64)   NOT NULL,
+  permission  VARCHAR(128)  NOT NULL,
+  PRIMARY KEY (group_name, permission),
+  CONSTRAINT fk_rust_perm_group_permissions_group
+    FOREIGN KEY (group_name) REFERENCES rust_perm_groups (name) ON DELETE CASCADE
+);
+
+
+-- Who is in each group — by website user, like every other authored row.
+--
+-- `added_by` is an admin's user id and deliberately carries NO foreign key: a
+-- staff member's account being deleted must not delete the record of what they
+-- did, and `ON DELETE SET NULL` would quietly rewrite history to "nobody".
+-- The activity log is the audit trail; this column is a convenience beside it.
+CREATE TABLE IF NOT EXISTS rust_perm_group_members (
+  group_name  VARCHAR(64)  NOT NULL,
+  user_id     INT          NOT NULL,
+  added_by    INT          NULL,
+  added_at    DATETIME     NOT NULL DEFAULT CURRENT_TIMESTAMP,
+  PRIMARY KEY (group_name, user_id),
+  KEY idx_rust_perm_members_user (user_id),
+  CONSTRAINT fk_rust_perm_members_group
+    FOREIGN KEY (group_name) REFERENCES rust_perm_groups (name) ON DELETE CASCADE,
+  CONSTRAINT fk_rust_perm_members_user
+    FOREIGN KEY (user_id) REFERENCES users (id) ON DELETE CASCADE
+);
+
+
+-- ── Direct grants ─────────────────────────────────────────────────────────
+--
+-- A permission held by one person, without a group. It is not a lesser version
+-- of membership: it is the shape that reaches a player who has never connected
+-- to that server, which is exactly what an entitlement earned on the website at
+-- three in the morning has to do (R16).
+--
+-- `source` is why this table does not need changing in phase 13. Every later
+-- author — an event action granting the right to redeem a kit, a lease handing
+-- out a weekend group — writes a row here with its own source rather than a
+-- store of its own, so there is one answer to "why does this player have this"
+-- and one place the push reads.
+CREATE TABLE IF NOT EXISTS rust_perm_grants (
+  id          INT UNSIGNED  NOT NULL AUTO_INCREMENT PRIMARY KEY,
+  user_id     INT           NOT NULL,
+  permission  VARCHAR(128)  NOT NULL,
+  scope       VARCHAR(64)   NOT NULL DEFAULT '*',
+  source      VARCHAR(32)   NOT NULL DEFAULT 'admin',
+  note        VARCHAR(255)  NULL,
+  granted_by  INT           NULL,
+  granted_at  DATETIME      NOT NULL DEFAULT CURRENT_TIMESTAMP,
+  UNIQUE KEY uq_rust_perm_grant (user_id, permission, scope),
+  KEY idx_rust_perm_grant_user (user_id),
+  CONSTRAINT fk_rust_perm_grants_user
+    FOREIGN KEY (user_id) REFERENCES users (id) ON DELETE CASCADE
+);
+
+
+-- ── What this site has actually put in each game ──────────────────────────
+--
+-- The site's memory of its own authorship, one row per thing it has confirmed
+-- into one server's store. It is the table that makes D31 possible at all.
+--
+-- Three sets, and every interesting question is the difference between two of
+-- them:
+--
+--   desired − pushed   what to apply
+--   pushed  − desired  what to RETIRE, because the site put it there and has
+--                      since withdrawn it
+--   present − desired  drift: somebody else put it there
+--
+-- Without the middle row a withdrawn grant is indistinguishable from a hand
+-- edit, and those two have opposite correct answers. Inferring it from absence
+-- is the mistake this table exists to prevent.
+--
+-- It is keyed by Steam id rather than by user, because it records what is in the
+-- GAME, and the game has never heard of a website account. Unlinking an account
+-- therefore leaves its row here until the next sync retires it — which is the
+-- correct behaviour and would be impossible to express keyed the other way.
+CREATE TABLE IF NOT EXISTS rust_perm_pushed (
+  server_id  VARCHAR(64)   NOT NULL,
+  -- `grant` | `member` | `group-permission` | `group`
+  kind       VARCHAR(24)   NOT NULL,
+  -- a Steam id, or a group name
+  subject    VARCHAR(64)   NOT NULL,
+  -- a permission, a group name, or '' for the existence of a group
+  object     VARCHAR(128)  NOT NULL,
+  pushed_at  DATETIME      NOT NULL DEFAULT CURRENT_TIMESTAMP,
+  PRIMARY KEY (server_id, kind, subject, object),
+  CONSTRAINT fk_rust_perm_pushed_server
+    FOREIGN KEY (server_id) REFERENCES rust_servers (id) ON DELETE CASCADE
+);
+
+
+-- ── Drift ─────────────────────────────────────────────────────────────────
+--
+-- What a sync found in a server's store that the site did not author, within
+-- the namespace the site claims. Rows appear and disappear with the report:
+-- this is the CURRENT difference, not a history of differences, and a hand edit
+-- that somebody has since removed should stop being on the screen.
+--
+-- Nothing here is ever removed from the game by the sync itself. An operator
+-- typing `oxide.grant` during an incident is drift, not an error, and the two
+-- answers offered to them — adopt it, or revoke it — are both a person's
+-- decision.
+CREATE TABLE IF NOT EXISTS rust_perm_drift (
+  id          INT UNSIGNED  NOT NULL AUTO_INCREMENT PRIMARY KEY,
+  server_id   VARCHAR(64)   NOT NULL,
+  kind        VARCHAR(24)   NOT NULL,
+  subject     VARCHAR(64)   NOT NULL,
+  object      VARCHAR(128)  NOT NULL,
+  first_seen  DATETIME      NOT NULL DEFAULT CURRENT_TIMESTAMP,
+  last_seen   DATETIME      NOT NULL DEFAULT CURRENT_TIMESTAMP,
+  UNIQUE KEY uq_rust_perm_drift (server_id, kind, subject, object),
+  CONSTRAINT fk_rust_perm_drift_server
+    FOREIGN KEY (server_id) REFERENCES rust_servers (id) ON DELETE CASCADE
+);
+
+
+-- ── Removing something the site never put there ───────────────────────────
+--
+-- Revoking a drift row cannot go through `rust_perm_pushed`, because the whole
+-- point of a drift row is that it was never pushed. It cannot go through the
+-- authored tables either: a foreign grant often names a Steam id that belongs
+-- to no website account at all, and there is no user to author it against.
+--
+-- So a revoke is its own instruction with its own lifetime: queued by a person,
+-- carried in the next sync's retire list, and deleted once a report says the
+-- game no longer has it. A server that is offline keeps the instruction until
+-- it comes back, which is the behaviour an operator expects from a website that
+-- claims to be the author of record.
+CREATE TABLE IF NOT EXISTS rust_perm_revocations (
+  id            INT UNSIGNED  NOT NULL AUTO_INCREMENT PRIMARY KEY,
+  server_id     VARCHAR(64)   NOT NULL,
+  kind          VARCHAR(24)   NOT NULL,
+  subject       VARCHAR(64)   NOT NULL,
+  object        VARCHAR(128)  NOT NULL,
+  requested_by  INT           NULL,
+  requested_at  DATETIME      NOT NULL DEFAULT CURRENT_TIMESTAMP,
+  UNIQUE KEY uq_rust_perm_revocation (server_id, kind, subject, object),
+  CONSTRAINT fk_rust_perm_revocations_server
+    FOREIGN KEY (server_id) REFERENCES rust_servers (id) ON DELETE CASCADE
+);
+
+
+-- ── The state of the mirror, per server ───────────────────────────────────
+--
+-- One row per configured server: whether its store currently matches what the
+-- site authors, when that was last true, and what the last report said.
+--
+-- `dirty` is how everything that should provoke a sync says so without knowing
+-- anything about syncing: an admin writing a grant, a drift hook firing in the
+-- game, a server reporting a new boot id or a new wipe. The loop owns WHEN, and
+-- every other part of the module owns WHETHER.
+--
+-- `desired_hash` and `synced_hash` are the cheap half of that question. A loop
+-- that pushed the whole set every tick would work and would also write to six
+-- game servers every thirty seconds for ever; comparing a hash costs one query
+-- and skips the round trip when nothing has changed. The periodic audit below
+-- is what keeps that from being a way to never notice drift.
+CREATE TABLE IF NOT EXISTS rust_perm_sync (
+  server_id        VARCHAR(64)  NOT NULL PRIMARY KEY,
+  -- `pending` | `ok` | `failed`
+  state            VARCHAR(24)  NOT NULL DEFAULT 'pending',
+  dirty            TINYINT(1)   NOT NULL DEFAULT 1,
+  desired_hash     VARCHAR(64)  NULL,
+  synced_hash      VARCHAR(64)  NULL,
+  boot_id          VARCHAR(64)  NULL,
+  wipe_id          VARCHAR(48)  NULL,
+  last_attempt_at  DATETIME     NULL,
+  last_ok_at       DATETIME     NULL,
+  report           LONGTEXT     NULL,
+  error            VARCHAR(191) NULL,
+  updated_at       DATETIME     NOT NULL DEFAULT CURRENT_TIMESTAMP,
+  CONSTRAINT fk_rust_perm_sync_server
+    FOREIGN KEY (server_id) REFERENCES rust_servers (id) ON DELETE CASCADE
+);
+
+
+-- ── What each server's plugins have registered ────────────────────────────
+--
+-- The option source the authoring form offers (D33), cached from the live read
+-- so that opening the form is not six round trips to six game hosts.
+--
+-- It is a cache of a fact that changes when an operator loads a plugin, and it
+-- is refreshed on every sync — which is also why a name that has stopped being
+-- registered disappears from the form rather than lingering as a choice that
+-- silently does nothing.
+CREATE TABLE IF NOT EXISTS rust_perm_catalogue (
+  server_id   VARCHAR(64)   NOT NULL,
+  permission  VARCHAR(128)  NOT NULL,
+  seen_at     DATETIME      NOT NULL DEFAULT CURRENT_TIMESTAMP,
+  PRIMARY KEY (server_id, permission),
+  CONSTRAINT fk_rust_perm_catalogue_server
+    FOREIGN KEY (server_id) REFERENCES rust_servers (id) ON DELETE CASCADE
+);
+
+
 -- ── Changes to tables that already shipped ────────────────────────────────
 --
 -- An ALTER below the CREATE, never an edit to it: `CREATE TABLE IF NOT EXISTS`
@@ -298,3 +607,64 @@ CREATE TABLE IF NOT EXISTS rust_ingest_cursor (
 -- would reach fresh installs only — which is the worst possible distribution for
 -- a schema change, because it works everywhere it is tested.
 ALTER TABLE rust_server_state ADD COLUMN IF NOT EXISTS wipe_id VARCHAR(48) NULL;
+
+-- Phase 4. `updated_at` is when THIS module last wrote the row, which is not the
+-- same fact as when the server last said something — and the pages were reading
+-- the first as if it were the second, so a server that had been down for three
+-- days rendered "last reported just now" on every failed poll.
+--
+-- They are genuinely two facts and both are wanted: `updated_at` decides whether
+-- the row is stale (a module that stopped polling must not leave a page claiming
+-- a server is up), and `last_seen_at` is when a `server.hello` last arrived. Only
+-- a successful refresh moves it.
+ALTER TABLE rust_server_state ADD COLUMN IF NOT EXISTS last_seen_at DATETIME NULL;
+
+
+-- ── Configuration written from the site (phase 7b, R18) ───────────────────
+--
+-- The audit trail for the most powerful thing this website can do to somebody's
+-- game host: write a file on it. One row per save attempt, including the ones
+-- that were refused and the ones the plugin rolled back — a write that did not
+-- land is exactly the row an operator asking "why is ZoneManager down" needs to
+-- find.
+--
+-- **No file bodies.** `changes` holds the fields that changed and their before
+-- and after LITERALS, which is what a person reading this wants, and secrets are
+-- redacted on the way in (`configEdit.redactChange`). D37 lets an admin read a
+-- credential on the page they opened deliberately; this table is read by more
+-- people, for longer, and usually by somebody who was not there.
+--
+-- The versions bracket the write: `version_before` is what the plugin said the
+-- file was when it was read, `version_after` what it is now. They are the
+-- plugin's own hashes, echoed — this module never computes one.
+CREATE TABLE IF NOT EXISTS rust_config_writes (
+  id              BIGINT       NOT NULL AUTO_INCREMENT PRIMARY KEY,
+  server_id       VARCHAR(64)  NOT NULL,
+  path            VARCHAR(255) NOT NULL,
+  plugin          VARCHAR(128) NULL,
+  -- What the admin asked us to reload. NULL is an honest value: a file whose
+  -- plugin is not loaded is written and not reloaded, and saying so is the
+  -- difference between "saved" and "in effect".
+  reload_target   VARCHAR(128) NULL,
+  -- `form` or `raw`. Which tier an edit came through changes how it should be
+  -- read: a form edit is type-preserving and narrow, a raw edit replaced the
+  -- whole document.
+  tier            VARCHAR(16)  NOT NULL DEFAULT 'form',
+  user_id         INT          NULL,
+  -- `applied` | `rolled-back` | `refused` | `unreachable`
+  outcome         VARCHAR(24)  NOT NULL,
+  reloaded        TINYINT(1)   NOT NULL DEFAULT 0,
+  changes         LONGTEXT     NULL,
+  version_before  VARCHAR(64)  NULL,
+  version_after   VARCHAR(64)  NULL,
+  detail          VARCHAR(500) NULL,
+  created_at      DATETIME     NOT NULL DEFAULT CURRENT_TIMESTAMP,
+  CONSTRAINT fk_rust_config_writes_server
+    FOREIGN KEY (server_id) REFERENCES rust_servers (id) ON DELETE CASCADE,
+  -- A deleted account must not delete the record that they changed a setting.
+  -- The row stays and the name goes; the alternative is an audit trail that a
+  -- person can erase by closing their account.
+  CONSTRAINT fk_rust_config_writes_user
+    FOREIGN KEY (user_id) REFERENCES users (id) ON DELETE SET NULL,
+  KEY idx_rust_config_writes_server (server_id, created_at)
+) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4;

server/index.js

@@ -50,6 +50,7 @@ module.exports = function register(ctx, api) {
   const publicRust = require('./router/public/rust.router')
   const playerRust = require('./router/player/rust.router')
   const adminRust = require('./router/admin/rust.router')
+  const usersRust = require('./router/admin/usersRust.router')
   const boot = require('./boot')
   /* eslint-enable global-require */
 
@@ -78,6 +79,20 @@ module.exports = function register(ctx, api) {
     admin: { '/rust': adminRust },
   })
 
+  // R13's first extension slot (§2.4). Core declares `admin.users.detail` on
+  // `/api/v1/admin/users/:id` and we fill it; the router receives the parent's
+  // `req.params.id` through `mergeParams`. Core's own routes on the resource are
+  // declared before the slot is mounted, so core wins any path conflict — it owns
+  // the user, and this module owns what it can say about one.
+  //
+  // **It is declared twice, in two different places, on purpose.** This call is
+  // the SERVER half and `module.json`'s `extensions` array is held against it by
+  // the loader. The CLIENT half is `registry.registerExtension(ID,
+  // 'admin.users.detail', …)` in `entry.jsx` and must NOT appear in that array —
+  // phase 1 found that the hard way with `site.footer.status`, which is a client
+  // slot and fails the load outright when named there.
+  api.registerExtension('admin.users.detail', usersRust)
+
   // The lifecycle hooks (§2.5). `onBoot` runs after core's schema, after this
   // module's schema fragment, and BEFORE the HTTP listener binds — so a module
   // that must not serve traffic until it has warmed a cache gets that for free.
@@ -92,14 +107,15 @@ module.exports = function register(ctx, api) {
 
   // Everything else this module will register — the Team provider, the event
   // triggers and audiences, the engagement seeds, the four event catalogues, the
-  // notification streams, the slash commands and the two extension slots — is
-  // deliberately absent. Each arrives with the phase that has something real to
-  // put in it. A registration with nothing behind it is worse than a missing one:
-  // a declared trigger nothing emits and a declared slot nothing fills are both
-  // surfaces an operator can configure and then wait on.
+  // notification streams and the slash commands — is deliberately absent. Each
+  // arrives with the phase that has something real to put in it. A registration
+  // with nothing behind it is worse than a missing one: a declared trigger
+  // nothing emits and a declared slot nothing fills are both surfaces an operator
+  // can configure and then wait on.
 
   log.info('registered', {
     version: require('../module.json').version,
     routes: 'public:/rust player:/rust admin:/rust',
+    extensions: 'admin.users.detail',
   })
 }

server/ingest.js

@@ -34,6 +34,8 @@
 const core = require('./core')
 
 const db = require('./model/events/events.db')
+const links = require('./model/links/links.model')
+const permissionsDb = require('./model/permissions/permissions.db')
 const sidecar = require('./sidecarClient')
 
 const log = core.logger('ingest')
@@ -144,6 +146,51 @@ async function apply(serverId, item) {
       await db.touchPlayer(frame.steamId, frame.name || null)
       break
 
+    // ── Protocol 3: the one frame that changes something other than a counter ──
+    //
+    // `/unlink` in game severs the site's link, and it is the only way out of a
+    // link on the wrong account: the site REFUSES to move a Steam id another
+    // website account already holds (D23), so without this a player who linked
+    // while signed in as the wrong account would need staff.
+    //
+    // It arrives here rather than through a route because the plugin has nothing
+    // to delete — the site is the author of record and the game holds no link —
+    // so `/unlink` is the game reporting what the player asked for, applied off
+    // the feed like every other frame.
+    //
+    // **The authority is the Steam account itself.** Whoever is connected to the
+    // game as it is who it is, which is a stronger proof of ownership than the
+    // site can obtain any other way, so this is not scoped by website user.
+    case 'account.unlinked':
+      await db.touchPlayer(frame.steamId, frame.name || null)
+      await links.unlinkFromGame(frame.steamId)
+      break
+
+    // Stored and counted as a sighting, nothing more. The code is deliberately
+    // NOT on this frame — it travels through the player — so there is nothing
+    // here to redeem and no pending state for the site to hold. It exists so an
+    // operator can see linking being used at all.
+    case 'account.link.requested':
+      await db.touchPlayer(frame.steamId, frame.name || null)
+      break
+
+    // ── Protocol 4: somebody changed the permission store, and it was not us ──
+    //
+    // The plugin raises this only for writes it did not make itself — its own
+    // sync suppresses the hooks while it applies (PROTOCOL.md §10.4). What
+    // arrives here is therefore a hand edit, a console command, or another
+    // plugin granting something.
+    //
+    // **It is a reason to reconcile, not the reconciliation.** This frame cannot
+    // say whether the change is foreign: only the desired set can, and that
+    // comparison happens in the sync. So the server is marked dirty and the next
+    // tick produces the authoritative answer — which means a hook that stops
+    // firing on a framework upgrade costs latency and nothing else. The audit
+    // interval finds the same drift within fifteen minutes either way.
+    case 'perm.drift':
+      await permissionsDb.markDirty(serverId)
+      break
+
     default:
       // Stored, not counted. Moderation frames, the server lifecycle, and
       // anything a newer protocol sends that this build does not understand.

server/model/config/config.db.js

@@ -0,0 +1,79 @@
+// ── The SQL half of the configuration audit ───────────────────────────────
+//
+// One table, two questions: record what a save did, and show an operator what
+// has been done to a server lately.
+//
+// Nothing here talks to a game. The game half is `sidecarClient`, and the two
+// are deliberately not mixed: this file is what remains true after the plugin
+// has been reloaded, rolled back, or lost.
+
+const core = require('../../core')
+
+/**
+ * Records one save attempt — including the ones that never reached a file.
+ *
+ * A refusal is written for the same reason a success is: an operator asking why
+ * a setting is not what they set has to be able to see that somebody tried and
+ * was told no, and a table that only holds successes answers that question with
+ * silence.
+ */
+async function recordWrite(row) {
+  await core.query(
+    `INSERT INTO rust_config_writes
+       (server_id, path, plugin, reload_target, tier, user_id, outcome, reloaded,
+        changes, version_before, version_after, detail)
+     VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)`,
+    [
+      row.serverId,
+      row.path,
+      row.plugin || null,
+      row.reloadTarget || null,
+      row.tier || 'form',
+      row.userId || null,
+      row.outcome,
+      row.reloaded ? 1 : 0,
+      row.changes ? JSON.stringify(row.changes) : null,
+      row.versionBefore || null,
+      row.versionAfter || null,
+      row.detail ? String(row.detail).slice(0, 500) : null,
+    ],
+  )
+}
+
+/**
+ * The recent history for one server, newest first.
+ *
+ * `changes` comes back parsed, and a row whose JSON will not parse comes back
+ * with `null` rather than throwing — a corrupt audit row must not be able to
+ * break the page that displays the rest of them.
+ */
+async function recentWrites(serverId, limit = 50) {
+  const rows = await core.query(
+    `SELECT id, server_id AS serverId, path, plugin, reload_target AS reloadTarget, tier,
+            user_id AS userId, outcome, reloaded, changes,
+            version_before AS versionBefore, version_after AS versionAfter, detail, created_at AS createdAt
+       FROM rust_config_writes
+      WHERE server_id = ?
+      ORDER BY id DESC
+      LIMIT ?`,
+    [serverId, Math.max(1, Math.min(Number(limit) || 50, 200))],
+  )
+
+  return rows.map((row) => ({
+    ...row,
+    reloaded: Boolean(row.reloaded),
+    changes: parseChanges(row.changes),
+  }))
+}
+
+function parseChanges(raw) {
+  if (!raw) return null
+
+  try {
+    return JSON.parse(raw)
+  } catch {
+    return null
+  }
+}
+
+module.exports = { recordWrite, recentWrites, parseChanges }

server/model/config/config.model.js

@@ -0,0 +1,229 @@
+// ── The logic half of configuration-from-the-site ─────────────────────────
+//
+// Everything here is about the difference between what a game host reports and
+// what an admin should be shown. Three jobs:
+//
+//  1. **Group a flat file list by plugin**, because one plugin can own several
+//     files and a form that lists 40 paths is not a settings screen.
+//  2. **Say which file is ours, and which keys inside it are locked** (D38). The
+//     plugin names itself in the catalogue rather than us matching a filename,
+//     so renaming the file cannot quietly unlock the three keys that would cut
+//     the link or split a server's history.
+//  3. **Decide nothing about paths.** The only process that can say whether a
+//     path resolves inside a configuration directory is the one holding the
+//     directory. This file checks SHAPE, so an obviously malformed request is
+//     refused before it costs a round trip — never as a substitute for the real
+//     check on the host.
+
+const configEdit = require('../../configEdit')
+
+/**
+ * Keys in the bridge plugin's own config that the website may not change (D38).
+ *
+ * `Host` and `Port` are the link this edit is travelling over, and `ServerId` is
+ * how every row this module has ever stored is keyed — changing it does not
+ * rename a server, it strands its history and starts a new one under a name
+ * nobody chose deliberately. All three are editable on the host, by a person
+ * who is standing on it.
+ */
+const LOCKED_KEYS = ['Host', 'Port', 'ServerId']
+
+/** What a locked field says for itself, on the screen and in a refusal. */
+const LOCKED_REASON = {
+  host: 'the website reaches this server through this address',
+  port: 'the website reaches this server through this port',
+  serverid: 'every row this site holds for this server is keyed to this id',
+}
+
+/**
+ * A path shaped like something the host could plausibly have listed.
+ *
+ * Deliberately narrow and deliberately **not** the security boundary: no `..`,
+ * nothing absolute, no drive letter, forward slashes, and it ends in `.json`.
+ */
+const PATH_SHAPE = /^(?!.*\.\.)(?!\/)[A-Za-z0-9 _.\-()[\]]+(?:\/[A-Za-z0-9 _.\-()[\]]+)*\.json$/
+
+function isPlausiblePath(path) {
+  return typeof path === 'string' && path.length > 0 && path.length <= 255 && PATH_SHAPE.test(path)
+}
+
+/**
+ * Shapes the plugin's catalogue into the screen's shape: plugins, each with its
+ * files, each file saying whether it can be edited and why not.
+ *
+ * A file whose guessed plugin is not loaded is kept and **marked**, not dropped.
+ * An operator whose config for an unloaded plugin vanished from the page would
+ * conclude the bridge cannot see it, which is a different and much more alarming
+ * problem than the true one.
+ */
+function shapeCatalogue(catalogue) {
+  if (!catalogue || typeof catalogue !== 'object') return null
+
+  const loaded = Array.isArray(catalogue.plugins) ? catalogue.plugins : []
+  const byName = new Map(loaded.map((p) => [String(p.name).toLowerCase(), p]))
+  const self = catalogue.self ? String(catalogue.self) : null
+
+  const groups = new Map()
+
+  for (const file of Array.isArray(catalogue.files) ? catalogue.files : []) {
+    const plugin = String(file.plugin || 'unknown')
+    const key = plugin.toLowerCase()
+
+    if (!groups.has(key)) {
+      const match = byName.get(key)
+      groups.set(key, {
+        plugin,
+        loaded: Boolean(match),
+        title: match ? match.title : null,
+        version: match ? match.version : null,
+        // The bridge plugin cannot reload itself — the reload would close the
+        // link carrying the answer — so the screen says so up front rather than
+        // offering a button that always refuses.
+        isBridge: self != null && plugin.toLowerCase() === self.toLowerCase(),
+        files: [],
+      })
+    }
+
+    groups.get(key).files.push({
+      path: String(file.path),
+      bytes: Number(file.bytes) || 0,
+      modified: file.modified ? Number(file.modified) : null,
+      editable: file.editable !== false,
+      ...(file.reason ? { reason: String(file.reason) } : {}),
+    })
+  }
+
+  return {
+    root: catalogue.root ? String(catalogue.root) : null,
+    self,
+    truncated: Boolean(catalogue.truncated),
+    limits: catalogue.limits || null,
+    plugins: [...groups.values()].sort((a, b) => a.plugin.localeCompare(b.plugin)),
+    loaded: loaded
+      .map((p) => ({ name: String(p.name), title: p.title || null, version: p.version || null }))
+      .sort((a, b) => a.name.localeCompare(b.name)),
+  }
+}
+
+/** Whether this file is the bridge's own config, by the name the plugin gave. */
+function isBridgeConfig(path, self) {
+  if (!self) return false
+  const plugin = String(path).includes('/') ? String(path).split('/')[0] : String(path).replace(/\.json$/i, '')
+  return plugin.toLowerCase() === String(self).toLowerCase()
+}
+
+/** The locked keys for a file: three of them in our own config, none anywhere else. */
+function lockedKeysFor(path, self) {
+  return isBridgeConfig(path, self) ? LOCKED_KEYS : []
+}
+
+/**
+ * Turns one file the host sent into what the form renders.
+ *
+ * The text is passed through untouched. What is added is the READING of it: the
+ * field list, which fields are locked, and which hold something a browser should
+ * mask by default.
+ */
+function shapeFile(file, { self = null, maxDepth = 6 } = {}) {
+  if (!file || typeof file.text !== 'string') return null
+
+  const locked = lockedKeysFor(file.path, self)
+  let fields = null
+  let parseError = null
+
+  try {
+    fields = configEdit.describe(configEdit.scan(file.text), { maxDepth, locked })
+  } catch (err) {
+    // A config already broken on disk still opens — in the raw tier, which is
+    // the only thing that can fix it. A page that refused to show a broken file
+    // would send somebody to SSH for the one job this feature exists to do.
+    parseError = err.message
+  }
+
+  return {
+    path: String(file.path),
+    plugin: file.plugin ? String(file.plugin) : null,
+    version: String(file.version),
+    bytes: Number(file.bytes) || 0,
+    modified: file.modified ? Number(file.modified) : null,
+    text: file.text,
+    fields,
+    parseError,
+    locked: locked.map((key) => ({ key, reason: LOCKED_REASON[key.toLowerCase()] || null })),
+    isBridge: isBridgeConfig(file.path, self),
+  }
+}
+
+/**
+ * Which locked keys differ between two versions of a document.
+ *
+ * The form refuses a locked field by pointer, but the **raw tier submits a whole
+ * document**, and a document can change `Port` without anything resembling an
+ * edit to a field. So the raw tier is checked the only way it can be: by
+ * comparing the literals before and after.
+ *
+ * A file that will not parse is not a way around this — an unparseable document
+ * is refused before it gets here.
+ */
+function lockedChanges(before, after, locked) {
+  if (!locked || locked.length === 0) return []
+
+  let a
+  let b
+
+  try {
+    a = configEdit.scan(before)
+    b = configEdit.scan(after)
+  } catch {
+    // Nothing can be compared, so nothing is cleared. The caller refuses.
+    return locked.slice()
+  }
+
+  const literal = (root, key) => {
+    if (root.type !== 'object') return null
+    const node = root.children.find((c) => String(c.key).toLowerCase() === key.toLowerCase())
+    return node ? JSON.stringify(node.value) + ':' + (node.raw || '') : null
+  }
+
+  return locked.filter((key) => literal(a, key) !== literal(b, key))
+}
+
+/** Every change a report says landed, as one line per file. */
+function summariseReport(report) {
+  if (!report || typeof report !== 'object') return null
+
+  const files = Array.isArray(report.files) ? report.files : []
+
+  return {
+    ok: report.ok !== false,
+    reloaded: Boolean(report.reloaded),
+    rolledBack: Boolean(report.rolledBack),
+    reason: report.reason ? String(report.reason) : null,
+    // The plugin only reads this on the failure path, and it is the difference
+    // between "your change was undone" and "your change was undone BECAUSE line
+    // 14 is not valid for that field".
+    log: report.log ? String(report.log).slice(-4000) : null,
+    files: files.map((f) => ({
+      path: String(f.path),
+      version: f.version ? String(f.version) : null,
+      bytes: f.bytes != null ? Number(f.bytes) : null,
+      // Both frameworks merge missing defaults on load and save the file back,
+      // so the file after a successful reload is regularly not the file we
+      // wrote. Saying so keeps an operator from reading it as our bug.
+      rewritten: Boolean(f.rewritten),
+    })),
+  }
+}
+
+module.exports = {
+  LOCKED_KEYS,
+  LOCKED_REASON,
+  PATH_SHAPE,
+  isPlausiblePath,
+  shapeCatalogue,
+  shapeFile,
+  isBridgeConfig,
+  lockedKeysFor,
+  lockedChanges,
+  summariseReport,
+}

server/model/links/links.db.js

@@ -0,0 +1,159 @@
+// ── SQL, and nothing else ─────────────────────────────────────────────────
+//
+// The `.db.js` half of the pair (see `servers.db.js` for why the split earns its
+// keep). Raw parameterised SQL through `core.query`, placeholders always.
+
+const core = require('../../core')
+
+const LINKS = 'rust_account_links'
+const PLAYERS = 'rust_players'
+const STATS = 'rust_player_wipe_stats'
+
+/**
+ * The link for one Steam id, or undefined.
+ *
+ * Joins core's `users` for the username, because every caller that asks "who
+ * owns this?" wants a name rather than an integer — and the one caller that
+ * refuses a re-link has to be able to say *whose* it is.
+ */
+async function getBySteamId(steamId) {
+  const rows = await core.query(
+    `SELECT l.steam_id AS steamId, l.user_id AS userId, l.name, l.server_id AS serverId,
+            l.linked_at AS linkedAt, u.username
+       FROM ${LINKS} l
+       JOIN users u ON u.id = l.user_id
+      WHERE l.steam_id = ?`,
+    [steamId],
+  )
+  return rows[0]
+}
+
+/**
+ * Every Steam account one website user holds, newest first.
+ *
+ * **It joins `rust_players` for the name the game last saw**, and that is not a
+ * convenience. The name on the LINK is what the player was called at the moment
+ * they linked, which is a Rust name and changes on a whim — so a player who has
+ * renamed since sees a name they no longer use, on the one page of the site that
+ * is about who they are. The admin panel already preferred the newer one; this
+ * is the same rule applied where the person themselves is reading.
+ *
+ * A LEFT JOIN, because a player can link an account and never play on it.
+ */
+async function listForUser(userId) {
+  return core.query(
+    `SELECT l.steam_id AS steamId, l.user_id AS userId, l.name, l.server_id AS serverId,
+            l.linked_at AS linkedAt, p.name AS playerName
+       FROM ${LINKS} l
+       LEFT JOIN ${PLAYERS} p ON p.steam_id = l.steam_id
+      WHERE l.user_id = ?
+      ORDER BY l.linked_at DESC`,
+    [userId],
+  )
+}
+
+/**
+ * Record a link.
+ *
+ * **A plain INSERT, never an upsert**, and that is the whole of D23 expressed in
+ * SQL. `ON DUPLICATE KEY UPDATE` here would silently move a Steam id from one
+ * website account to another — which, once phase 7 makes a link a privilege path
+ * and phase 13 makes it an entitlement, is an account takeover performed by
+ * typing a six-character code. The duplicate-key error is the refusal, and the
+ * controller turns it into a sentence.
+ */
+async function insert({ steamId, userId, name, serverId }) {
+  await core.query(
+    `INSERT INTO ${LINKS} (steam_id, user_id, name, server_id)
+     VALUES (?, ?, ?, ?)`,
+    [steamId, userId, name || null, serverId || null],
+  )
+}
+
+/**
+ * Remove a link the caller owns.
+ *
+ * Scoped by `user_id` in the statement rather than checked before it: a delete
+ * that reads, decides, then writes has a gap between the read and the write, and
+ * this way the ownership test and the deletion are the same operation. Answers
+ * how many rows went, so a caller can tell "removed" from "was not yours".
+ */
+async function removeOwned(steamId, userId) {
+  const result = await core.query(
+    `DELETE FROM ${LINKS} WHERE steam_id = ? AND user_id = ?`,
+    [steamId, userId],
+  )
+  return Number(result && result.affectedRows) || 0
+}
+
+/**
+ * Remove a link whoever holds it — the in-game `/unlink` path, and the staff
+ * unlink on the `admin.users.detail` panel (D25).
+ *
+ * Unscoped by user on purpose: neither caller is the link's owner and both have
+ * already established their authority another way. In game the authority is the
+ * Steam account itself — whoever is connected as it is who it is; on the admin
+ * panel it is the tier gate. Which is why the admin caller writes an
+ * `activity.log` entry naming the operator and this does not: it cannot tell the
+ * two apart, and a log line that guessed would be worse than none.
+ */
+async function removeBySteamId(steamId) {
+  const result = await core.query(`DELETE FROM ${LINKS} WHERE steam_id = ?`, [steamId])
+  return Number(result && result.affectedRows) || 0
+}
+
+/**
+ * Every link one user holds, enriched with what this module knows about that
+ * player — for the `admin.users.detail` panel.
+ *
+ * A LEFT JOIN, because a player can link an account and never play on it. An
+ * operator looking at that user should see the link, not an empty panel.
+ */
+async function listForUserWithPlayer(userId) {
+  return core.query(
+    `SELECT l.steam_id AS steamId, l.name, l.server_id AS serverId, l.linked_at AS linkedAt,
+            p.name AS playerName, p.first_seen AS firstSeen, p.last_seen AS lastSeen
+       FROM ${LINKS} l
+       LEFT JOIN ${PLAYERS} p ON p.steam_id = l.steam_id
+      WHERE l.user_id = ?
+      ORDER BY l.linked_at DESC`,
+    [userId],
+  )
+}
+
+/**
+ * Per-server all-time totals for one Steam id.
+ *
+ * The same rows the public leaderboard sums, grouped by server instead of
+ * filtered to one — so an operator sees a player across the fleet in one read.
+ * All-time, deliberately: an admin looking at a user wants their history, not
+ * this week's.
+ */
+async function statsForSteamId(steamId) {
+  return core.query(
+    `SELECT s.server_id AS serverId, srv.name AS serverName,
+            SUM(s.kills)        AS kills,
+            SUM(s.deaths)       AS deaths,
+            SUM(s.npc_kills)    AS npcKills,
+            SUM(s.structures)   AS structures,
+            SUM(s.playtime_sec) AS playtimeSec,
+            MAX(s.last_seen)    AS lastSeen,
+            COUNT(DISTINCT s.wipe_id) AS wipes
+       FROM ${STATS} s
+       LEFT JOIN rust_servers srv ON srv.id = s.server_id
+      WHERE s.steam_id = ?
+      GROUP BY s.server_id, srv.name
+      ORDER BY SUM(s.playtime_sec) DESC`,
+    [steamId],
+  )
+}
+
+module.exports = {
+  getBySteamId,
+  listForUser,
+  listForUserWithPlayer,
+  insert,
+  removeOwned,
+  removeBySteamId,
+  statsForSteamId,
+}

server/model/links/links.model.js

@@ -0,0 +1,258 @@
+// ── Who owns which Steam account ──────────────────────────────────────────
+//
+// R1's identity link, site-side. The flow it sits in the middle of:
+//
+//   1. In game, a player types `/link`. The plugin mints a one-time code, tells
+//      them privately, and holds it in memory for five minutes.
+//   2. On the website, the player types that code. This module asks the sidecar,
+//      which asks the plugin, which answers with the Steam id the code belongs
+//      to and drops it.
+//   3. This file records the result.
+//
+// **The site is the author of record and the game holds nothing.** That is the
+// one real difference from the UO bridge, which writes a tag onto the game
+// account: there is no equivalent per-account store in Rust that survives a wipe,
+// and phase 7 needs the site to be authoritative anyway — it pushes permissions
+// INTO the game keyed by Steam id. A copy in the game would be a second thing to
+// reconcile every wipe, for no question it could answer better.
+
+const core = require('../../core')
+const db = require('./links.db')
+const servers = require('../servers/servers.model')
+const sidecar = require('../../sidecarClient')
+
+const log = core.logger('links')
+
+/** What a link looks like to any caller. Never carries a raw code. */
+function shape(row) {
+  if (!row) return null
+  return {
+    steamId: row.steamId,
+    name: row.name || null,
+    serverId: row.serverId || null,
+    linkedAt: row.linkedAt,
+  }
+}
+
+/**
+ * The Steam accounts one website user holds.
+ *
+ * The name is the one the GAME last saw, falling back to the one recorded when
+ * they linked — the rule the admin panel already used, applied on the page the
+ * player themselves reads. A browser walk found the two disagreeing: staff saw
+ * `Wanderer` and the player saw `Wanderer-old`, for the same person on the same
+ * site.
+ */
+async function listForUser(userId) {
+  return (await db.listForUser(userId)).map((row) => ({
+    ...shape(row),
+    name: row.playerName || row.name || null,
+  }))
+}
+
+/** True when this user holds this Steam id. The ownership gate every player read uses. */
+async function owns(steamId, userId) {
+  const row = await db.getBySteamId(steamId)
+  return Boolean(row && Number(row.userId) === Number(userId))
+}
+
+/**
+ * Redeem a code against one server, and record the link.
+ *
+ * Answers a discriminated result rather than throwing, because every outcome
+ * here is a sentence somebody has to read:
+ *
+ *   `{ ok: true, link }`               — linked
+ *   `{ ok: false, reason: 'rejected' }`— the game says that code is not good
+ *   `{ ok: false, reason: 'taken', username }` — someone else holds that Steam id
+ *   `{ ok: false, reason: 'offline' }` — the game or its sidecar did not answer
+ *
+ * **`rejected` deliberately collapses "unknown" and "expired".** The plugin
+ * distinguishes them and an operator reading its log can too; a stranger typing
+ * codes must not learn which of the two they hit, because that is the difference
+ * between "keep guessing" and "guess faster".
+ */
+async function confirmOne({ server, code, userId }) {
+  const result = await sidecar.confirmLink(server, code)
+
+  // The transport failed: the sidecar is unreachable, the game is not connected,
+  // or the reply never came. None of those is a verdict on the code, so the
+  // player is told to try again rather than that their code is wrong.
+  if (!result.ok) {
+    log.warn('link confirm did not reach the game', { server: server.id, status: result.status })
+    return { ok: false, reason: 'offline' }
+  }
+
+  const frame = result.data || {}
+
+  // The plugin's own refusal. `frame.reason` is `unknown`, `expired` or
+  // `malformed`; it is logged and not surfaced (see the doc above).
+  if (frame.kind !== 'link.ok' || !frame.steamId) {
+    log.info('link code refused', { server: server.id, reason: frame.reason || frame.kind || 'unknown' })
+    return { ok: false, reason: 'rejected' }
+  }
+
+  const steamId = String(frame.steamId)
+  const held = await db.getBySteamId(steamId)
+
+  // D23: refuse, and say whose it is. A move would transfer every permission and
+  // entitlement phases 7 and 13 hang off this link, on a code anybody in game
+  // could have run — and the player's way out is `/unlink` in game, which they
+  // can reach from the machine they are sitting at.
+  if (held) {
+    if (Number(held.userId) === Number(userId)) {
+      // Already theirs. Not an error: a player who pressed the button twice, or
+      // one whose code was confirmed on a request that then timed out.
+      return { ok: true, link: shape(held), already: true }
+    }
+    return { ok: false, reason: 'taken', username: held.username }
+  }
+
+  try {
+    await db.insert({
+      steamId,
+      userId,
+      name: frame.name || null,
+      serverId: server.id,
+    })
+  } catch (err) {
+    // The race the PRIMARY KEY exists for: two confirmations of the same Steam
+    // id, interleaved between the check above and this write. The key refuses the
+    // second and it becomes the same refusal, rather than a 500.
+    if (err && (err.code === 'ER_DUP_ENTRY' || err.errno === 1062)) {
+      const now = await db.getBySteamId(steamId)
+      if (now && Number(now.userId) === Number(userId)) {
+        return { ok: true, link: shape(now), already: true }
+      }
+      return { ok: false, reason: 'taken', username: now && now.username }
+    }
+    throw err
+  }
+
+  const link = shape(await db.getBySteamId(steamId))
+  log.info('steam account linked', { steamId, userId, server: server.id })
+  return { ok: true, link }
+}
+
+/**
+ * Redeem a code against the fleet (D24).
+ *
+ * **A code is minted by ONE server and the player types six characters into a
+ * browser**, so the site cannot know which server it came from — nothing in the
+ * code says, and asking the player to pick would make a wrong guess
+ * indistinguishable from a wrong code, which is the one refusal that must not be
+ * ambiguous. So every enabled server is asked in turn and the first `link.ok`
+ * wins. The others answer `unknown` and nothing happens there: a code is only
+ * spent at the server that actually holds it.
+ *
+ * The loop stops early on `taken`, because that is a verdict about the Steam id
+ * rather than about this server — asking the rest of the fleet would produce the
+ * same answer more slowly.
+ *
+ * **"Every reachable server refused" is not the same answer as "a server was
+ * unreachable"**, and collapsing them is how a player who linked on the one
+ * server that is down gets told their code is wrong. `unsure` is that case, and
+ * the sentence it earns says to try again rather than to run `/link` again.
+ */
+async function redeem({ code, userId }) {
+  const fleet = await servers.listForPolling()
+
+  if (fleet.length === 0) return { ok: false, reason: 'no-servers' }
+
+  let refused = 0
+  let unreachable = 0
+
+  for (const server of fleet) {
+    // Sequential, deliberately. In parallel every server would be asked even
+    // after one had already answered, and a code spent on the right server would
+    // still be travelling to five others — for a fleet of six and a five-minute
+    // TTL, there is nothing to win by racing them.
+    // eslint-disable-next-line no-await-in-loop
+    const result = await confirmOne({ server, code, userId })
+
+    if (result.ok || result.reason === 'taken') return result
+
+    if (result.reason === 'offline') unreachable += 1
+    else refused += 1
+  }
+
+  if (refused === 0) return { ok: false, reason: 'offline' }
+  if (unreachable > 0) return { ok: false, reason: 'unsure' }
+
+  return { ok: false, reason: 'rejected' }
+}
+
+/** Remove a link the caller owns. False when they did not hold it. */
+async function unlinkOwned(steamId, userId) {
+  return (await db.removeOwned(steamId, userId)) > 0
+}
+
+/**
+ * Remove a link whoever holds it.
+ *
+ * Two callers, both of which have already established their authority and
+ * neither of which is the link's owner: ingest applying an in-game `/unlink`
+ * (the authority is the Steam account — whoever is connected as it is who it
+ * is), and a staff unlink from the `admin.users.detail` panel (D25).
+ *
+ * It logs nothing about who asked, because the two callers record that
+ * differently: the admin one writes an `activity.log` entry naming the operator,
+ * and the game one has no operator to name.
+ */
+async function unlinkAnyOwner(steamId) {
+  return (await db.removeBySteamId(steamId)) > 0
+}
+
+/**
+ * Remove a link because the player asked in game.
+ *
+ * Called from ingest, off an `account.unlinked` event.
+ */
+async function unlinkFromGame(steamId) {
+  const removed = await unlinkAnyOwner(steamId)
+  if (removed) log.info('steam account unlinked in game', { steamId })
+  return removed
+}
+
+/** The admin panel's read: every link this user holds, with per-server totals. */
+async function forAdmin(userId) {
+  const links = await db.listForUserWithPlayer(userId)
+
+  return Promise.all(
+    links.map(async (row) => ({
+      steamId: row.steamId,
+      // The name on the LINK is what they were called when they linked; the one
+      // on `rust_players` is what the game last saw. They differ the moment
+      // somebody renames, and the newer one is the useful one to show.
+      name: row.playerName || row.name || null,
+      linkedName: row.name || null,
+      serverId: row.serverId || null,
+      linkedAt: row.linkedAt,
+      firstSeen: row.firstSeen || null,
+      lastSeen: row.lastSeen || null,
+      servers: (await db.statsForSteamId(row.steamId)).map((s) => ({
+        serverId: s.serverId,
+        serverName: s.serverName || s.serverId,
+        kills: Number(s.kills) || 0,
+        deaths: Number(s.deaths) || 0,
+        npcKills: Number(s.npcKills) || 0,
+        structures: Number(s.structures) || 0,
+        playtimeSec: Number(s.playtimeSec) || 0,
+        wipes: Number(s.wipes) || 0,
+        lastSeen: s.lastSeen || null,
+      })),
+    })),
+  )
+}
+
+module.exports = {
+  shape,
+  listForUser,
+  owns,
+  confirmOne,
+  redeem,
+  unlinkOwned,
+  unlinkAnyOwner,
+  unlinkFromGame,
+  forAdmin,
+}

server/model/permissions/permissions.db.js

@@ -0,0 +1,459 @@
+// ── SQL for the permission mirror, and nothing else ───────────────────────
+//
+// The tables this file reads are described at length in `db/schema.sql`; what
+// matters here is which of them is authoritative for what, because four of the
+// eight look similar and answer completely different questions:
+//
+//   AUTHORED   `rust_perm_groups`, `..._group_permissions`, `..._group_members`,
+//              `rust_perm_grants` — what an operator (and later an event) says
+//              should be true. Keyed by WEBSITE USER (D28).
+//   PUSHED     `rust_perm_pushed` — what this site has confirmed into one game's
+//              store. Keyed by STEAM ID, because it records what is in the game
+//              and the game has never heard of a website account.
+//   FOUND      `rust_perm_drift` — what a sync found that the site did not
+//              author. Replaced whole by each report: it is the current
+//              difference, not a history of differences.
+//   INSTRUCTED `rust_perm_revocations` — remove this, even though we never put
+//              it there. The only way to act on drift, since a foreign grant
+//              often names a Steam id no website account holds.
+//
+// Raw parameterised SQL through `core.query`, no ORM, like every other `.db.js`
+// here. Bulk writes are batched into one statement with a generated placeholder
+// list rather than looped, because a fleet-wide sync writes hundreds of rows and
+// a round trip each is how a boot tick becomes a second long.
+
+const core = require('../../core')
+
+const GROUPS = 'rust_perm_groups'
+const GROUP_PERMISSIONS = 'rust_perm_group_permissions'
+const GROUP_MEMBERS = 'rust_perm_group_members'
+const GRANTS = 'rust_perm_grants'
+const PUSHED = 'rust_perm_pushed'
+const DRIFT = 'rust_perm_drift'
+const REVOCATIONS = 'rust_perm_revocations'
+const SYNC = 'rust_perm_sync'
+const CATALOGUE = 'rust_perm_catalogue'
+const LINKS = 'rust_account_links'
+const SERVERS = 'rust_servers'
+
+/** `(?,?,?),(?,?,?)` for `rows.length` rows of `width` columns. */
+function placeholders(rows, width) {
+  return rows.map(() => `(${new Array(width).fill('?').join(',')})`).join(',')
+}
+
+// ---- the authored set ----
+
+async function listGroups() {
+  return core.query(
+    `SELECT name, title, \`rank\`, scope, created_at AS createdAt, updated_at AS updatedAt
+       FROM ${GROUPS}
+      ORDER BY \`rank\` DESC, name ASC`,
+  )
+}
+
+async function getGroup(name) {
+  const rows = await core.query(
+    `SELECT name, title, \`rank\`, scope FROM ${GROUPS} WHERE name = ?`,
+    [name],
+  )
+
+  return rows[0] || null
+}
+
+/**
+ * Create or update one group.
+ *
+ * `ON DUPLICATE KEY UPDATE` rather than a check-then-write: two admins on the
+ * same screen is not a race worth losing a title over, and the row's identity is
+ * its name either way.
+ */
+async function upsertGroup({ name, title, rank, scope }) {
+  await core.query(
+    `INSERT INTO ${GROUPS} (name, title, \`rank\`, scope)
+          VALUES (?, ?, ?, ?)
+     ON DUPLICATE KEY UPDATE title = VALUES(title), \`rank\` = VALUES(\`rank\`),
+                             scope = VALUES(scope), updated_at = CURRENT_TIMESTAMP`,
+    [name, title, rank, scope],
+  )
+}
+
+async function deleteGroup(name) {
+  const result = await core.query(`DELETE FROM ${GROUPS} WHERE name = ?`, [name])
+  return Number(result.affectedRows || 0) > 0
+}
+
+async function listGroupPermissions() {
+  return core.query(
+    `SELECT group_name AS groupName, permission FROM ${GROUP_PERMISSIONS} ORDER BY permission ASC`,
+  )
+}
+
+/** Replace a group's permission list whole. The form edits a list, so the write is a list. */
+async function setGroupPermissions(name, permissions) {
+  await core.query(`DELETE FROM ${GROUP_PERMISSIONS} WHERE group_name = ?`, [name])
+
+  if (!permissions.length) return
+
+  await core.query(
+    `INSERT INTO ${GROUP_PERMISSIONS} (group_name, permission)
+          VALUES ${placeholders(permissions, 2)}`,
+    permissions.flatMap((permission) => [name, permission]),
+  )
+}
+
+/**
+ * Every membership, with the member's Steam accounts joined on.
+ *
+ * One query rather than a membership read plus a link read per member: the admin
+ * screen renders both together and the push needs both together, and a fleet's
+ * worth of members is one round trip either way.
+ */
+async function listGroupMembers() {
+  return core.query(
+    `SELECT m.group_name AS groupName, m.user_id AS userId, m.added_at AS addedAt,
+            u.username, l.steam_id AS steamId, p.name AS playerName
+       FROM ${GROUP_MEMBERS} m
+       JOIN users u ON u.id = m.user_id
+       LEFT JOIN ${LINKS} l ON l.user_id = m.user_id
+       LEFT JOIN rust_players p ON p.steam_id = l.steam_id
+      ORDER BY m.group_name ASC, u.username ASC`,
+  )
+}
+
+async function addGroupMember(groupName, userId, addedBy) {
+  await core.query(
+    `INSERT IGNORE INTO ${GROUP_MEMBERS} (group_name, user_id, added_by) VALUES (?, ?, ?)`,
+    [groupName, userId, addedBy],
+  )
+}
+
+async function removeGroupMember(groupName, userId) {
+  const result = await core.query(
+    `DELETE FROM ${GROUP_MEMBERS} WHERE group_name = ? AND user_id = ?`,
+    [groupName, userId],
+  )
+
+  return Number(result.affectedRows || 0) > 0
+}
+
+/**
+ * Every direct grant, with the holder's accounts joined on.
+ *
+ * `username` is on the row because a grant with no linked Steam account still
+ * has to be listable and nameable — that state is the one the admin screen most
+ * needs to show, since it looks exactly like a working grant from every other
+ * angle and reaches nobody.
+ */
+async function listGrants({ userId = null } = {}) {
+  return core.query(
+    `SELECT g.id, g.user_id AS userId, g.permission, g.scope, g.source, g.note,
+            g.granted_at AS grantedAt, u.username,
+            l.steam_id AS steamId, p.name AS playerName
+       FROM ${GRANTS} g
+       JOIN users u ON u.id = g.user_id
+       LEFT JOIN ${LINKS} l ON l.user_id = g.user_id
+       LEFT JOIN rust_players p ON p.steam_id = l.steam_id
+      ${userId === null ? '' : 'WHERE g.user_id = ?'}
+      ORDER BY u.username ASC, g.permission ASC`,
+    userId === null ? [] : [userId],
+  )
+}
+
+async function getGrant(id) {
+  const rows = await core.query(
+    `SELECT id, user_id AS userId, permission, scope, source FROM ${GRANTS} WHERE id = ?`,
+    [id],
+  )
+
+  return rows[0] || null
+}
+
+/**
+ * Add a grant, or leave the one that is already there alone.
+ *
+ * `INSERT IGNORE` against the unique key, and the return says which happened —
+ * the controller needs to tell "granted" from "they already had it" to write an
+ * honest activity row.
+ */
+async function insertGrant({ userId, permission, scope, source, note, grantedBy }) {
+  const result = await core.query(
+    `INSERT IGNORE INTO ${GRANTS} (user_id, permission, scope, source, note, granted_by)
+          VALUES (?, ?, ?, ?, ?, ?)`,
+    [userId, permission, scope, source, note, grantedBy],
+  )
+
+  return { inserted: Number(result.affectedRows || 0) > 0, id: result.insertId }
+}
+
+async function deleteGrant(id) {
+  const result = await core.query(`DELETE FROM ${GRANTS} WHERE id = ?`, [id])
+  return Number(result.affectedRows || 0) > 0
+}
+
+/**
+ * One website account by name, for the authoring form.
+ *
+ * A form that made an operator type a numeric user id would be a form nobody
+ * could use, and the alternative — calling core's own admin user search from the
+ * client — would bind this module to the shape of a response the contract does
+ * not cover. Reading the `users` table is already what every join in this file
+ * does.
+ *
+ * Case-insensitive because the column's collation is: core stores usernames in a
+ * `_ci` collation and an exact-case lookup would refuse a name the site itself
+ * considers the same one.
+ */
+async function findUserByUsername(username) {
+  const rows = await core.query(`SELECT id, username FROM users WHERE username = ? LIMIT 1`, [username])
+  return rows[0] || null
+}
+
+/** Which website user holds which Steam account. The join that turns an authored row into a push. */
+async function listLinks() {
+  return core.query(`SELECT user_id AS userId, steam_id AS steamId FROM ${LINKS}`)
+}
+
+// ---- what is actually out there ----
+
+async function listPushed(serverId) {
+  return core.query(
+    `SELECT kind, subject, object FROM ${PUSHED} WHERE server_id = ?`,
+    [serverId],
+  )
+}
+
+async function addPushed(serverId, rows) {
+  if (!rows.length) return
+
+  await core.query(
+    `INSERT IGNORE INTO ${PUSHED} (server_id, kind, subject, object)
+          VALUES ${placeholders(rows, 4)}`,
+    rows.flatMap((row) => [serverId, row.kind, row.subject, row.object]),
+  )
+}
+
+async function removePushed(serverId, rows) {
+  for (const row of rows) {
+    // eslint-disable-next-line no-await-in-loop
+    await core.query(
+      `DELETE FROM ${PUSHED} WHERE server_id = ? AND kind = ? AND subject = ? AND object = ?`,
+      [serverId, row.kind, row.subject, row.object],
+    )
+  }
+}
+
+/**
+ * Replace one server's drift list with what the latest report found.
+ *
+ * Whole, rather than merged, and `first_seen` survives through the
+ * `ON DUPLICATE KEY UPDATE` — so "this has been here since Tuesday" is still
+ * answerable while "somebody has since undone it" removes the row.
+ */
+async function replaceDrift(serverId, rows) {
+  if (!rows.length) {
+    await core.query(`DELETE FROM ${DRIFT} WHERE server_id = ?`, [serverId])
+    return
+  }
+
+  await core.query(
+    `INSERT INTO ${DRIFT} (server_id, kind, subject, object)
+          VALUES ${placeholders(rows, 4)}
+     ON DUPLICATE KEY UPDATE last_seen = CURRENT_TIMESTAMP`,
+    rows.flatMap((row) => [serverId, row.kind, row.subject, row.object]),
+  )
+
+  // Anything this report did NOT name is gone from the game, so it goes from
+  // here. Named explicitly rather than swept by timestamp: two syncs a second
+  // apart would make a timestamp window either delete live rows or keep dead
+  // ones, depending on the clock.
+  await core.query(
+    `DELETE FROM ${DRIFT}
+      WHERE server_id = ?
+        AND (kind, subject, object) NOT IN (${placeholders(rows, 3)})`,
+    [serverId, ...rows.flatMap((row) => [row.kind, row.subject, row.object])],
+  )
+}
+
+async function listDrift() {
+  return core.query(
+    `SELECT d.id, d.server_id AS serverId, d.kind, d.subject, d.object,
+            d.first_seen AS firstSeen, d.last_seen AS lastSeen,
+            l.user_id AS userId, u.username, p.name AS playerName
+       FROM ${DRIFT} d
+       LEFT JOIN ${LINKS} l ON l.steam_id = d.subject
+       LEFT JOIN users u ON u.id = l.user_id
+       LEFT JOIN rust_players p ON p.steam_id = d.subject
+      ORDER BY d.server_id ASC, d.kind ASC, d.subject ASC`,
+  )
+}
+
+async function getDrift(id) {
+  const rows = await core.query(
+    `SELECT id, server_id AS serverId, kind, subject, object FROM ${DRIFT} WHERE id = ?`,
+    [id],
+  )
+
+  return rows[0] || null
+}
+
+async function deleteDrift(id) {
+  await core.query(`DELETE FROM ${DRIFT} WHERE id = ?`, [id])
+}
+
+async function queueRevocation({ serverId, kind, subject, object, requestedBy }) {
+  await core.query(
+    `INSERT IGNORE INTO ${REVOCATIONS} (server_id, kind, subject, object, requested_by)
+          VALUES (?, ?, ?, ?, ?)`,
+    [serverId, kind, subject, object, requestedBy],
+  )
+}
+
+async function listRevocations(serverId) {
+  return core.query(
+    `SELECT id, kind, subject, object FROM ${REVOCATIONS} WHERE server_id = ?`,
+    [serverId],
+  )
+}
+
+async function deleteRevocations(ids) {
+  if (!ids.length) return
+
+  await core.query(
+    `DELETE FROM ${REVOCATIONS} WHERE id IN (${ids.map(() => '?').join(',')})`,
+    ids,
+  )
+}
+
+// ---- the state of the mirror ----
+
+/**
+ * One sync row per configured server, created on demand.
+ *
+ * A server added today has no row and must not therefore be skipped for ever, so
+ * the read inserts what is missing rather than the writer remembering to.
+ */
+async function ensureSyncRows() {
+  await core.query(
+    `INSERT IGNORE INTO ${SYNC} (server_id) SELECT id FROM ${SERVERS}`,
+  )
+}
+
+async function listSync() {
+  return core.query(
+    `SELECT s.server_id AS serverId, s.state, s.dirty, s.desired_hash AS desiredHash,
+            s.synced_hash AS syncedHash, s.boot_id AS bootId, s.wipe_id AS wipeId,
+            s.last_attempt_at AS lastAttemptAt, s.last_ok_at AS lastOkAt,
+            s.report, s.error
+       FROM ${SYNC} s
+      ORDER BY s.server_id ASC`,
+  )
+}
+
+/**
+ * Mark servers as needing a sync.
+ *
+ * `scope` is a server id or `*`; a fleet-wide change dirties every row, which is
+ * right: the set each server should hold has changed even if only one of them
+ * will notice a difference.
+ */
+async function markDirty(scope) {
+  if (!scope || scope === '*') {
+    await core.query(`UPDATE ${SYNC} SET dirty = 1, updated_at = CURRENT_TIMESTAMP`)
+    return
+  }
+
+  await core.query(
+    `UPDATE ${SYNC} SET dirty = 1, updated_at = CURRENT_TIMESTAMP WHERE server_id = ?`,
+    [scope],
+  )
+}
+
+/**
+ * Record the outcome of one attempt.
+ *
+ * **`dirty` is cleared unconditionally, and that is safe because it is an
+ * optimisation rather than the truth.** Something may well have changed the
+ * authored set while this sync was in flight, and clearing the flag would then
+ * lose that change — except that the loop's real condition is
+ * `desired_hash != synced_hash`, recomputed from the tables on every tick. The
+ * flag only saves a hash comparison; the hash is what cannot be wrong.
+ *
+ * `last_ok_at` moves only on success, and it is passed rather than composed into
+ * the SQL so the statement is the same string every time.
+ */
+async function putSyncResult(serverId, { state, syncedHash, desiredHash, bootId, wipeId, report, error }) {
+  const okAt = state === 'ok' ? new Date() : null
+
+  await core.query(
+    `INSERT INTO ${SYNC} (server_id, state, dirty, desired_hash, synced_hash, boot_id, wipe_id,
+                          last_attempt_at, last_ok_at, report, error, updated_at)
+          VALUES (?, ?, 0, ?, ?, ?, ?, NOW(), ?, ?, ?, NOW())
+     ON DUPLICATE KEY UPDATE state = VALUES(state), dirty = 0,
+                             desired_hash = VALUES(desired_hash),
+                             synced_hash = VALUES(synced_hash),
+                             boot_id = VALUES(boot_id), wipe_id = VALUES(wipe_id),
+                             last_attempt_at = NOW(),
+                             last_ok_at = COALESCE(VALUES(last_ok_at), last_ok_at),
+                             report = VALUES(report), error = VALUES(error),
+                             updated_at = NOW()`,
+    [serverId, state, desiredHash, syncedHash, bootId, wipeId, okAt, report, error],
+  )
+}
+
+// ---- the option source ----
+
+async function putCatalogue(serverId, permissions) {
+  await core.query(`DELETE FROM ${CATALOGUE} WHERE server_id = ?`, [serverId])
+
+  if (!permissions.length) return
+
+  await core.query(
+    `INSERT IGNORE INTO ${CATALOGUE} (server_id, permission)
+          VALUES ${placeholders(permissions, 2)}`,
+    permissions.flatMap((permission) => [serverId, permission]),
+  )
+}
+
+async function listCatalogue() {
+  return core.query(
+    `SELECT server_id AS serverId, permission FROM ${CATALOGUE} ORDER BY permission ASC`,
+  )
+}
+
+module.exports = {
+  GROUPS,
+  GRANTS,
+  PUSHED,
+  DRIFT,
+  listGroups,
+  getGroup,
+  upsertGroup,
+  deleteGroup,
+  listGroupPermissions,
+  setGroupPermissions,
+  listGroupMembers,
+  addGroupMember,
+  removeGroupMember,
+  listGrants,
+  getGrant,
+  insertGrant,
+  deleteGrant,
+  findUserByUsername,
+  listLinks,
+  listPushed,
+  addPushed,
+  removePushed,
+  replaceDrift,
+  listDrift,
+  getDrift,
+  deleteDrift,
+  queueRevocation,
+  listRevocations,
+  deleteRevocations,
+  ensureSyncRows,
+  listSync,
+  markDirty,
+  putSyncResult,
+  putCatalogue,
+  listCatalogue,
+}

server/model/permissions/permissions.model.js

@@ -0,0 +1,356 @@
+// ── The authored set, and what it means for one server ────────────────────
+//
+// This file turns "what an operator wrote on the website" into "what one game
+// server's store should contain", which is where four of phase 7's decisions
+// actually live:
+//
+//   D28  a grant is authored against a WEBSITE USER and resolved to every Steam
+//        id they have linked, here, at the moment of the push.
+//   D29  every authored row carries a scope — one server, or `*` for the fleet —
+//        and a server sees only what names it.
+//   D30  groups travel as groups. Membership is a separate wire fact from the
+//        permissions the group carries, because the game stores them separately
+//        and one of the two can fail on its own (§12.2 rule 4).
+//   D31  the difference between the desired set and what this site has already
+//        pushed is what gets retired. Anything else in the store is drift, and
+//        drift is reported rather than undone.
+//
+// Nothing here talks to a sidecar — `permSync.js` does that. The split is the
+// usual one and earns its keep twice over here: the whole of the interesting
+// logic is a pure function of four tables, so it is tested without a game, a
+// sidecar, or a database.
+
+const crypto = require('node:crypto')
+
+const db = require('./permissions.db')
+
+/** A scope that means every server. Stored, rather than null, so the column never needs a coalesce. */
+const FLEET = '*'
+
+/**
+ * Permission and group names, as both frameworks store them.
+ *
+ * Lowercased on the way in, because the store lowers them and a site that did
+ * not would author `Kits.VIP`, push it, read back `kits.vip`, and report its own
+ * grant as drift for ever.
+ */
+function normaliseName(value) {
+  return String(value || '').trim().toLowerCase()
+}
+
+/** Whether a scope reaches a server. */
+function inScope(scope, serverId) {
+  return scope === FLEET || scope === serverId
+}
+
+/**
+ * Everything the authoring screen renders, in one read.
+ *
+ * Assembled here rather than in SQL because the shape is a tree — a group with
+ * its permissions and its members — and the alternative is either four round
+ * trips per group or one join that repeats every group row once per member.
+ */
+async function overview() {
+  const [groups, groupPermissions, members, grants, sync, drift, catalogue] = await Promise.all([
+    db.listGroups(),
+    db.listGroupPermissions(),
+    db.listGroupMembers(),
+    db.listGrants(),
+    db.listSync(),
+    db.listDrift(),
+    db.listCatalogue(),
+  ])
+
+  const byGroup = new Map(groups.map((group) => [group.name, { ...group, permissions: [], members: [] }]))
+
+  for (const row of groupPermissions) {
+    const group = byGroup.get(row.groupName)
+    if (group) group.permissions.push(row.permission)
+  }
+
+  // A member with two linked Steam accounts arrives as two rows from the join,
+  // and is one person on the screen — holding BOTH accounts, not the first one
+  // the join happened to return. The screen needs all of them: a membership is
+  // pushed per account, and it can be waiting on one while it landed on another.
+  const memberByKey = new Map()
+
+  for (const row of members) {
+    const group = byGroup.get(row.groupName)
+    if (!group) continue
+
+    const key = `${row.groupName}:${row.userId}`
+    let member = memberByKey.get(key)
+
+    if (!member) {
+      member = {
+        userId: row.userId,
+        username: row.username,
+        accounts: [],
+        addedAt: row.addedAt,
+      }
+      memberByKey.set(key, member)
+      group.members.push(member)
+    }
+
+    if (row.steamId) member.accounts.push({ steamId: row.steamId, name: row.playerName || null })
+  }
+
+  return {
+    groups: [...byGroup.values()],
+    grants: collapseGrants(grants),
+    servers: sync.map(shapeSync),
+    drift,
+    catalogue: catalogueByPermission(catalogue),
+  }
+}
+
+/**
+ * One row per grant, not one per linked account.
+ *
+ * The join in `listGrants` multiplies a grant by the holder's accounts, which is
+ * what the push wants and the opposite of what a screen wants.
+ */
+function collapseGrants(rows) {
+  const byId = new Map()
+
+  for (const row of rows) {
+    const existing = byId.get(row.id)
+
+    if (!existing) {
+      byId.set(row.id, {
+        id: row.id,
+        userId: row.userId,
+        username: row.username,
+        permission: row.permission,
+        scope: row.scope,
+        source: row.source,
+        note: row.note,
+        grantedAt: row.grantedAt,
+        accounts: row.steamId ? [{ steamId: row.steamId, name: row.playerName || null }] : [],
+      })
+
+      continue
+    }
+
+    if (row.steamId) existing.accounts.push({ steamId: row.steamId, name: row.playerName || null })
+  }
+
+  return [...byId.values()]
+}
+
+/**
+ * The sync row as a client reads it.
+ *
+ * `report` is stored as the JSON the game sent and parsed here rather than on the
+ * way in, so a report this build cannot read is a rendering problem on one
+ * screen instead of a write that failed.
+ */
+function shapeSync(row) {
+  let report = null
+
+  if (row.report) {
+    try {
+      report = JSON.parse(row.report)
+    } catch {
+      report = null
+    }
+  }
+
+  return {
+    serverId: row.serverId,
+    state: row.state,
+    dirty: Boolean(row.dirty),
+    inSync: Boolean(row.desiredHash) && row.desiredHash === row.syncedHash && row.state === 'ok',
+    lastAttemptAt: row.lastAttemptAt,
+    lastOkAt: row.lastOkAt,
+    error: row.error || null,
+    report,
+  }
+}
+
+/** Which servers know each permission name — the form's option source, and its warning label. */
+function catalogueByPermission(rows) {
+  const byPermission = new Map()
+
+  for (const row of rows) {
+    if (!byPermission.has(row.permission)) byPermission.set(row.permission, [])
+    byPermission.get(row.permission).push(row.serverId)
+  }
+
+  return [...byPermission.entries()]
+    .map(([permission, servers]) => ({ permission, servers }))
+    .sort((a, b) => a.permission.localeCompare(b.permission))
+}
+
+/**
+ * The whole authored set, read once, in the shape the per-server build wants.
+ *
+ * Read once per sync tick rather than once per server: six servers is six
+ * different answers derived from one set of tables, and re-reading them per
+ * server is six times the queries for the same rows.
+ */
+async function readAuthored() {
+  const [groups, groupPermissions, members, grants, links] = await Promise.all([
+    db.listGroups(),
+    db.listGroupPermissions(),
+    db.listGroupMembers(),
+    db.listGrants(),
+    db.listLinks(),
+  ])
+
+  const steamIdsByUser = new Map()
+
+  for (const link of links) {
+    if (!steamIdsByUser.has(link.userId)) steamIdsByUser.set(link.userId, [])
+    steamIdsByUser.get(link.userId).push(link.steamId)
+  }
+
+  return { groups, groupPermissions, members, grants, steamIdsByUser }
+}
+
+/**
+ * What one server's store should contain, and the rows that say so.
+ *
+ * Returns three things the caller needs together and must not compute twice:
+ *
+ *   `payload`  what goes on the wire
+ *   `rows`     the same set in `rust_perm_pushed`'s shape, for the diff
+ *   `hash`     a stable digest of `rows`, which is how the loop knows nothing
+ *              has changed without asking a game server
+ *
+ * **A user with no linked Steam account contributes nothing and is not an
+ * error.** They are authored against perfectly well and reach nobody until they
+ * link — which the admin screen says out loud, because a grant that reaches
+ * nothing looks exactly like one that worked.
+ */
+function buildDesired(serverId, authored) {
+  const { groups, groupPermissions, members, grants, steamIdsByUser } = authored
+
+  const scopedGroups = groups.filter((group) => inScope(group.scope, serverId))
+  const groupNames = new Set(scopedGroups.map((group) => group.name))
+
+  const permissionsByGroup = new Map(scopedGroups.map((group) => [group.name, []]))
+  const membersByGroup = new Map(scopedGroups.map((group) => [group.name, []]))
+  const managed = new Set()
+  const rows = []
+
+  for (const group of scopedGroups)
+    rows.push({ kind: 'group', subject: group.name, object: '' })
+
+  for (const row of groupPermissions) {
+    if (!groupNames.has(row.groupName)) continue
+
+    const permission = normaliseName(row.permission)
+    permissionsByGroup.get(row.groupName).push(permission)
+    managed.add(permission)
+    rows.push({ kind: 'group-permission', subject: row.groupName, object: permission })
+  }
+
+  const seenMember = new Set()
+
+  for (const row of members) {
+    if (!groupNames.has(row.groupName)) continue
+
+    for (const steamId of steamIdsByUser.get(row.userId) || []) {
+      const key = `${row.groupName}:${steamId}`
+      if (seenMember.has(key)) continue
+      seenMember.add(key)
+
+      membersByGroup.get(row.groupName).push(steamId)
+      rows.push({ kind: 'member', subject: steamId, object: row.groupName })
+    }
+  }
+
+  const permissionsBySteamId = new Map()
+  const seenGrant = new Set()
+
+  for (const row of grants) {
+    if (!inScope(row.scope, serverId)) continue
+
+    const permission = normaliseName(row.permission)
+
+    // Managed whether or not it reaches anybody: the namespace is what makes a
+    // hand grant of this permission to somebody else show up as drift, and a
+    // grant whose holder has linked nothing would otherwise silently narrow it.
+    managed.add(permission)
+
+    // **Resolved from the link map, not from the row.** `listGrants` joins the
+    // links and therefore repeats a grant once per linked account, which would
+    // give the right answer here by accident — until somebody changes that query
+    // and one of a person's two accounts quietly stops being granted. The map is
+    // the same source the members above use, and it says what it means.
+    for (const steamId of steamIdsByUser.get(row.userId) || []) {
+      const key = `${steamId}:${permission}`
+      if (seenGrant.has(key)) continue
+      seenGrant.add(key)
+
+      if (!permissionsBySteamId.has(steamId)) permissionsBySteamId.set(steamId, [])
+      permissionsBySteamId.get(steamId).push(permission)
+      rows.push({ kind: 'grant', subject: steamId, object: permission })
+    }
+  }
+
+  const payload = {
+    groups: scopedGroups.map((group) => ({
+      name: group.name,
+      title: group.title || group.name,
+      rank: group.rank,
+      permissions: permissionsByGroup.get(group.name),
+      members: membersByGroup.get(group.name),
+    })),
+    grants: [...permissionsBySteamId.entries()].map(([steamId, permissions]) => ({
+      steamId,
+      permissions,
+    })),
+    managed: [...managed].sort(),
+  }
+
+  return { payload, rows, hash: hashRows(rows) }
+}
+
+/**
+ * A digest of the desired set.
+ *
+ * Sorted before hashing, because the rows come out of several queries in an
+ * order nothing guarantees — an unsorted digest would differ between two reads
+ * of an unchanged set and push to every game server on every tick.
+ */
+function hashRows(rows) {
+  const canonical = rows
+    .map((row) => `${row.kind}${row.subject}${row.object}`)
+    .sort()
+    .join('\n')
+
+  return crypto.createHash('sha256').update(canonical).digest('hex')
+}
+
+/** A row's identity, for set arithmetic against what was pushed. */
+const rowKey = (row) => `${row.kind}${row.subject}${row.object}`
+
+/**
+ * What this site put in a server and has since withdrawn.
+ *
+ * `pushed − desired`, and it is the one calculation that cannot be replaced by
+ * asking the game: a name in the store that is not in the desired set is either
+ * something the site retired or something a human granted, and those have
+ * opposite correct answers (D31). Only the pushed ledger tells them apart.
+ */
+function retirements(pushed, desiredRows) {
+  const desired = new Set(desiredRows.map(rowKey))
+
+  return pushed.filter((row) => !desired.has(rowKey(row)))
+}
+
+module.exports = {
+  FLEET,
+  normaliseName,
+  inScope,
+  overview,
+  readAuthored,
+  buildDesired,
+  retirements,
+  hashRows,
+  rowKey,
+  collapseGrants,
+  shapeSync,
+}

server/model/servers/servers.db.js

@@ -80,11 +80,56 @@ async function listState() {
     `SELECT server_id AS serverId, reachable, online, players, max_players AS maxPlayers,
             hostname, level, seed, world_size AS worldSize, boot_id AS bootId,
             save_created_at AS saveCreatedAt, wipe_id AS wipeId, protocol,
-            updated_at AS updatedAt
+            last_seen_at AS lastSeenAt, updated_at AS updatedAt
        FROM ${STATE}`,
   )
 }
 
+/** One server's observed state, or `null`. The single-row twin of `listState`. */
+async function getState(serverId) {
+  const rows = await core.query(
+    `SELECT server_id AS serverId, reachable, online, players, max_players AS maxPlayers,
+            hostname, level, seed, world_size AS worldSize, boot_id AS bootId,
+            save_created_at AS saveCreatedAt, wipe_id AS wipeId, protocol,
+            last_seen_at AS lastSeenAt, updated_at AS updatedAt
+       FROM ${STATE}
+      WHERE server_id = ?`,
+    [serverId],
+  )
+  return rows[0] || null
+}
+
+/**
+ * Mark a server unreachable **without forgetting what it last said**.
+ *
+ * `putState` replaces the row whole, which is right when a sidecar answered: the
+ * frame it answered with is the complete truth about that server. It is wrong
+ * when nothing answered. A refresh that cannot reach a sidecar knows exactly one
+ * new fact — that it could not reach it — and writing the whole row from that
+ * one fact sets `hostname`, `level`, `seed`, `world_size` and `wipe_id` to NULL.
+ *
+ * The site's whole premise is that it renders the last thing each server said
+ * while every server is off. A row blanked the first time a game host reboots
+ * cannot do that: the page loses the map, the size, the seed and the wipe, and
+ * what it shows is not "offline, here is what we know" but "offline, and we have
+ * never heard of it". It is invisible in every test that stubs a reachable
+ * sidecar, and it shows up as a page that was complete an hour ago.
+ *
+ * So: three columns move, and the description stays where it is.
+ */
+async function markUnreachable(serverId, reachable = false) {
+  await core.query(
+    `INSERT INTO ${STATE} (server_id, reachable, online, players, updated_at)
+     VALUES (?, ?, 0, 0, CURRENT_TIMESTAMP)
+     ON DUPLICATE KEY UPDATE
+       reachable = VALUES(reachable),
+       online = 0,
+       players = 0,
+       updated_at = CURRENT_TIMESTAMP`,
+    [serverId, reachable ? 1 : 0],
+  )
+}
+
 /**
  * Replace one server's observed state.
  *
@@ -100,15 +145,20 @@ async function putState(state) {
   await core.query(
     `INSERT INTO ${STATE}
        (server_id, reachable, online, players, max_players, hostname, level, seed,
-        world_size, boot_id, save_created_at, wipe_id, protocol, raw, updated_at)
-     VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, CURRENT_TIMESTAMP)
+        world_size, boot_id, save_created_at, wipe_id, protocol, raw, last_seen_at, updated_at)
+     VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, CURRENT_TIMESTAMP, CURRENT_TIMESTAMP)
      ON DUPLICATE KEY UPDATE
        reachable = VALUES(reachable), online = VALUES(online), players = VALUES(players),
        max_players = VALUES(max_players), hostname = VALUES(hostname), level = VALUES(level),
        seed = VALUES(seed), world_size = VALUES(world_size), boot_id = VALUES(boot_id),
        save_created_at = VALUES(save_created_at), wipe_id = VALUES(wipe_id),
        protocol = VALUES(protocol),
-       raw = VALUES(raw), updated_at = CURRENT_TIMESTAMP`,
+       raw = VALUES(raw),
+       -- Only a frame moves this; an unreachable write leaves it alone, which is
+       -- what lets a page say how long a server has been down rather than how
+       -- recently we failed to reach it.
+       last_seen_at = CURRENT_TIMESTAMP,
+       updated_at = CURRENT_TIMESTAMP`,
     [
       state.serverId,
       state.reachable ? 1 : 0,
@@ -136,5 +186,7 @@ module.exports = {
   upsertServer,
   deleteServer,
   listState,
+  getState,
+  markUnreachable,
   putState,
 }

server/model/servers/servers.model.js

@@ -73,6 +73,7 @@ async function listPublic(now = Date.now()) {
 
 function shapePublic(row, state, now) {
   const updatedAt = state && state.updatedAt ? new Date(state.updatedAt) : null
+  const lastSeenAt = state && state.lastSeenAt ? new Date(state.lastSeenAt) : null
   const stale = !updatedAt || now - updatedAt.getTime() > STALE_AFTER_MS
 
   return {
@@ -87,11 +88,43 @@ function shapePublic(row, state, now) {
     level: (state && state.level) || null,
     worldSize: state && state.worldSize != null ? Number(state.worldSize) : null,
     seed: state && state.seed != null ? Number(state.seed) : null,
+    // The CURRENT wipe, from the state row rather than from the newest row in
+    // `rust_wipes`. The two usually agree and the state row is the one that is
+    // right when they do not: a wipe list is derived from events that have been
+    // ingested, so a server that has just wiped and said nothing since has a new
+    // wipe id here and no row there at all.
+    wipeId: (state && state.wipeId) || null,
+    wipedAt: (state && state.saveCreatedAt) || null,
+    // Two timestamps, because they are two facts. `lastSeenAt` is when a frame
+    // last arrived and is what a page means by "last reported"; `updatedAt` is
+    // when this module last wrote the row, and is what `stale` is computed from.
+    // Reading the second as the first is what made an offline server claim it had
+    // reported just now, on every failed poll, for as long as it stayed down.
+    lastSeenAt: lastSeenAt ? lastSeenAt.toISOString() : null,
     updatedAt: updatedAt ? updatedAt.toISOString() : null,
     stale,
   }
 }
 
+/**
+ * One enabled server, or `null`.
+ *
+ * It exists because `/rust/servers/:id` is a page and a page needs to be able to
+ * 404. A detail view built by fetching the list and finding the row in it cannot
+ * tell "no such server" from "a server that has said nothing" — both are an
+ * absence — and renders an empty page under a heading for a server that does not
+ * exist. Filtering happens here, where `enabled = 0` and "never configured" are
+ * the same answer on purpose: a disabled server is not a 403, it is not there.
+ */
+async function getPublic(id, now = Date.now()) {
+  if (!id) return null
+
+  const row = await db.getServer(id)
+  if (!row || !row.enabled) return null
+
+  return shapePublic(row, await db.getState(row.id), now)
+}
+
 /**
  * The admin view: configuration plus reachability, and **no token**.
  *
@@ -133,6 +166,7 @@ module.exports = {
   withToken,
   listForPolling,
   listPublic,
+  getPublic,
   listForAdmin,
   shapePublic,
   encryptToken,

server/permSync.js

@@ -0,0 +1,342 @@
+// ── Keeping a game's permission store equal to what the site authored ─────
+//
+// R2's whole mechanism, and it is chapter 4's board pointed the other way: the
+// site is the single producer of a set, it re-sends the whole thing rather than
+// a stream of edits, and the receiver reconciles. What is new is the direction —
+// the module telling the game what the site knows, where every earlier phase
+// asked the game what it knew.
+//
+// ── One verb (D32) ────────────────────────────────────────────────────────
+//
+// A sync sends the whole desired set and the plugin diffs it against the live
+// store. The website never holds a copy of the game's permissions, which is the
+// point: a second source of truth is stale the moment it lands, and the store is
+// the bigger of the two sets.
+//
+// The delta the site DOES compute is the one the game cannot: what this site put
+// there and has since withdrawn (`retirements`). A name in the store that is not
+// in the desired set is either that, or a hand edit — and only the pushed ledger
+// can tell them apart (D31).
+//
+// ── When it runs ──────────────────────────────────────────────────────────
+//
+// Every tick asks a cheap question — does the digest of the desired set still
+// equal what this server last confirmed — and does nothing when the answer is
+// yes. A sync therefore happens when:
+//
+//   • an operator changed something (the dirty flag, and the digest behind it)
+//   • the game restarted or wiped (a new boot id or wipe id: the store may have
+//     been emptied, and R2's promise is that a wipe is not a data-loss event)
+//   • a permission hook fired in the game that we did not cause (`ingest.js`
+//     marks the server dirty; the authoritative answer is this sync's report)
+//   • the audit interval elapsed — the backstop that finds drift on a quiet
+//     server nobody has touched
+//   • the last attempt failed, after a backoff
+//
+// ── What it never does ────────────────────────────────────────────────────
+//
+// It does not remove a grant it did not make (D31), it does not invent a
+// permission the server has not registered (D33), and it does not treat a
+// silent sidecar as a reason to forget anything. A server that is unreachable
+// keeps its retirements and its revocations until it comes back.
+
+const core = require('./core')
+
+const db = require('./model/permissions/permissions.db')
+const model = require('./model/permissions/permissions.model')
+const servers = require('./model/servers/servers.model')
+const serversDb = require('./model/servers/servers.db')
+const sidecar = require('./sidecarClient')
+
+const log = core.logger('permissions')
+
+/** How often the loop asks whether anything needs pushing. */
+const TICK_MS = 30 * 1000
+
+/**
+ * How long a server may go without a full reconciliation, however quiet it is.
+ *
+ * The digest comparison is what keeps the loop cheap, and on its own it would
+ * also mean a server whose store somebody edited by hand is never asked about
+ * again. This is the interval at which the question gets asked anyway.
+ */
+const AUDIT_MS = 15 * 60 * 1000
+
+/** How long to leave a failing server alone before trying again. */
+const FAIL_BACKOFF_MS = 2 * 60 * 1000
+
+/**
+ * The most rows one sync may carry.
+ *
+ * Below the sidecar's line cap and below the plugin's operation ceiling, so the
+ * refusal happens here — where it can name the server and reach an operator —
+ * rather than as a `413` or a `too-large` from two processes away.
+ */
+const MAX_ROWS = 15000
+
+let timer = null
+
+function start() {
+  if (timer) return
+
+  timer = setInterval(() => {
+    tick().catch((err) => log.error('permission sync tick failed', { error: err.message }))
+  }, TICK_MS)
+
+  if (timer.unref) timer.unref()
+}
+
+function stop() {
+  if (!timer) return
+
+  clearInterval(timer)
+  timer = null
+}
+
+/**
+ * One pass over every enabled server.
+ *
+ * The authored set is read ONCE and handed to each server's build: six servers
+ * are six different answers derived from the same four tables, and re-reading
+ * them per server is six times the queries for identical rows.
+ */
+async function tick({ force = null } = {}) {
+  await db.ensureSyncRows()
+
+  const [rows, state, sync, authored] = await Promise.all([
+    servers.listForPolling(),
+    serversDb.listState(),
+    db.listSync(),
+    model.readAuthored(),
+  ])
+
+  const syncById = new Map(sync.map((row) => [row.serverId, row]))
+  const stateById = new Map(state.map((row) => [row.serverId, row]))
+
+  // `allSettled`, for the same reason the board poll uses it: one unreachable
+  // host must not stop the other five being reconciled.
+  await Promise.allSettled(
+    rows
+      .filter((server) => force === null || force === server.id)
+      .map((server) =>
+        syncOne(server, {
+          authored,
+          sync: syncById.get(server.id) || null,
+          state: stateById.get(server.id) || null,
+          force: force !== null,
+        }),
+      ),
+  )
+}
+
+/**
+ * Whether this server needs a push right now.
+ *
+ * Returns a reason rather than a boolean, because the reason is worth logging:
+ * "why did the website just write to my game server" is a question an operator
+ * asks, and `wipe` and `drift` are very different answers.
+ */
+function reasonToSync({ desiredHash, sync, state, force }) {
+  if (force) return 'requested'
+  if (!sync) return 'first'
+  if (sync.state !== 'ok' && sync.lastAttemptAt && age(sync.lastAttemptAt) < FAIL_BACKOFF_MS && !sync.dirty) {
+    return null
+  }
+  if (sync.state !== 'ok') return 'retry'
+  if (desiredHash !== sync.syncedHash) return 'changed'
+  if (sync.dirty) return 'dirty'
+
+  const bootId = state && state.bootId ? state.bootId : null
+  const wipeId = state && state.wipeId ? state.wipeId : null
+
+  // A restart or a wipe is the case R2 exists for: the game may have forgotten
+  // everything, and the site has not.
+  if (bootId && bootId !== sync.bootId) return 'restart'
+  if (wipeId && wipeId !== sync.wipeId) return 'wipe'
+
+  if (!sync.lastAttemptAt || age(sync.lastAttemptAt) >= AUDIT_MS) return 'audit'
+
+  return null
+}
+
+function age(value) {
+  const at = value instanceof Date ? value.getTime() : new Date(value).getTime()
+  return Number.isFinite(at) ? Date.now() - at : Number.MAX_SAFE_INTEGER
+}
+
+async function syncOne(server, { authored, sync, state, force }) {
+  const desired = model.buildDesired(server.id, authored)
+  const reason = reasonToSync({ desiredHash: desired.hash, sync, state, force })
+
+  if (!reason) return null
+
+  const [pushed, revocations] = await Promise.all([
+    db.listPushed(server.id),
+    db.listRevocations(server.id),
+  ])
+
+  const retirements = model.retirements(pushed, desired.rows)
+  const retire = [
+    ...retirements.map((row) => ({ kind: row.kind, subject: row.subject, object: row.object })),
+    ...revocations.map((row) => ({ kind: row.kind, subject: row.subject, object: row.object })),
+  ]
+
+  const bootId = state && state.bootId ? state.bootId : null
+  const wipeId = state && state.wipeId ? state.wipeId : null
+
+  if (desired.rows.length + retire.length > MAX_ROWS) {
+    // Refused here rather than sent: the sidecar would answer `413` and the
+    // plugin would answer `too-large`, and neither of those messages reaches the
+    // person who has to make the set smaller.
+    const error = `the permission set is too large to push (${desired.rows.length + retire.length} rows, limit ${MAX_ROWS})`
+    log.error('permission sync refused', { server: server.id, rows: desired.rows.length })
+    await db.putSyncResult(server.id, {
+      state: 'failed',
+      desiredHash: desired.hash,
+      syncedHash: sync ? sync.syncedHash : null,
+      bootId,
+      wipeId,
+      report: null,
+      error,
+    })
+
+    return 'too-large'
+  }
+
+  log.info('syncing permissions', {
+    server: server.id,
+    reason,
+    rows: desired.rows.length,
+    retire: retire.length,
+  })
+
+  const result = await sidecar.permSync(server, {
+    setId: desired.hash,
+    groups: desired.payload.groups,
+    grants: desired.payload.grants,
+    managed: desired.payload.managed,
+    retire,
+  })
+
+  if (!result.ok) {
+    await db.putSyncResult(server.id, {
+      state: 'failed',
+      desiredHash: desired.hash,
+      syncedHash: sync ? sync.syncedHash : null,
+      bootId,
+      wipeId,
+      report: null,
+      error: result.status,
+    })
+
+    return result.status
+  }
+
+  const report = result.data || {}
+
+  // The plugin refuses a whole sync with `perm.error` — `busy` while an earlier
+  // one is still draining, `too-large` past its own ceiling. Both are answers
+  // rather than transport failures, exactly like a refused link code, so they
+  // arrive as a 200 and are told apart by `kind`.
+  if (report.kind === 'perm.error') {
+    await db.putSyncResult(server.id, {
+      state: 'failed',
+      desiredHash: desired.hash,
+      syncedHash: sync ? sync.syncedHash : null,
+      bootId,
+      wipeId,
+      report: null,
+      error: `the game refused the sync: ${report.reason || 'unknown'}`,
+    })
+
+    return report.reason || 'refused'
+  }
+
+  await applyReport(server, { desired, retire, report, bootId, wipeId })
+
+  return 'ok'
+}
+
+/**
+ * Record what the game said it did.
+ *
+ * Three writes, and the order matters only in that all three are safe to repeat:
+ * a sync that crashes here is re-run next tick and reaches the same place, which
+ * is the property that lets this loop be the only writer.
+ */
+async function applyReport(server, { desired, retire, report, bootId, wipeId }) {
+  const unresolved = new Set((report.unresolved || []).map(model.normaliseName))
+  const pending = new Set(report.pending || [])
+
+  // A grant naming a permission this server has not registered did NOT land —
+  // `GrantUserPermission` no-ops silently for an unregistered name, which is
+  // why the plugin pre-checks and says so. Recording it as pushed would make the
+  // site believe it had given a privilege it had not.
+  //
+  // The same for a member the store could not place: the membership is waiting
+  // on their first connection, and it is not in the game yet.
+  const landed = desired.rows.filter((row) => {
+    if (row.kind === 'grant' || row.kind === 'group-permission') return !unresolved.has(row.object)
+    if (row.kind === 'member') return !pending.has(`${row.subject}:${row.object}`)
+    return true
+  })
+
+  await db.addPushed(server.id, landed)
+
+  // Everything retired is gone from the game whether the plugin removed it or
+  // found it already absent, so it stops being something this site put there.
+  await db.removePushed(server.id, retire)
+
+  const revocations = await db.listRevocations(server.id)
+  await db.deleteRevocations(revocations.map((row) => row.id))
+
+  await db.replaceDrift(server.id, (report.foreign || []).map((row) => ({
+    kind: String(row.kind || ''),
+    subject: String(row.subject || ''),
+    object: String(row.object || ''),
+  })))
+
+  await db.putSyncResult(server.id, {
+    state: 'ok',
+    desiredHash: desired.hash,
+    syncedHash: desired.hash,
+    bootId,
+    wipeId,
+    report: JSON.stringify(report),
+    error: null,
+  })
+
+  // The option source, refreshed from the same server that just answered. It is
+  // a second round trip and it is worth it: the form must not offer a name that
+  // stopped being registered when somebody uninstalled a plugin, because a grant
+  // against one is a privilege nobody ever gets and nothing ever reports.
+  const catalogue = await sidecar.permCatalogue(server)
+
+  if (catalogue.ok && catalogue.data && Array.isArray(catalogue.data.permissions)) {
+    await db.putCatalogue(
+      server.id,
+      catalogue.data.permissions.map(model.normaliseName).filter(Boolean),
+    )
+  }
+
+  log.info('permissions synced', {
+    server: server.id,
+    applied: report.applied,
+    unresolved: (report.unresolved || []).length,
+    foreign: (report.foreign || []).length,
+    pending: (report.pending || []).length,
+  })
+}
+
+module.exports = {
+  TICK_MS,
+  AUDIT_MS,
+  FAIL_BACKOFF_MS,
+  MAX_ROWS,
+  start,
+  stop,
+  tick,
+  syncOne,
+  reasonToSync,
+  applyReport,
+}

server/router/admin/config.controller.js

@@ -0,0 +1,331 @@
+// ── Admin · Rust · Mod configuration ──────────────────────────────────────
+//
+// R18. Four routes: list the tree, read a file, write a file, read what has
+// been written lately. Every one of them is a live round trip to a game host —
+// nothing here is cached, because a cached config is an edit somebody made over
+// SSH that this website then silently overwrote.
+//
+// ── The write is three steps and the order is the whole design ────────────
+//
+//  1. **Re-read the file from the host.** Form edits are spliced into the text
+//     that is on disk *now*, not into the text a browser was holding. The
+//     version the browser presents is checked against the fresh one, and a
+//     mismatch is a conflict rather than an overwrite.
+//  2. **Compose the new bytes here** (D35). The browser sends pointers and
+//     literals; `configEdit` splices them. It never parses and re-serialises,
+//     because that is how every untouched `1.0` becomes `1` and how a plugin
+//     fails to come back from its reload.
+//  3. **Hand the whole file to the plugin**, which version-checks it again,
+//     backs the old one up, writes, reloads, and rolls the write back if the
+//     plugin does not announce itself. That last part is the feature; this file
+//     reports it.
+//
+// ── What the outcome means ────────────────────────────────────────────────
+//
+// A `config.report` with `rolledBack: true` is a SUCCESSFUL round trip carrying
+// bad news: the edit was undone, the plugin is back on its old config, and the
+// admin needs to see the log line that says why. It is not a 5xx, and treating
+// it as one would lose the only diagnosis available.
+
+const core = require('../../core')
+
+const configEdit = require('../../configEdit')
+const db = require('../../model/config/config.db')
+const model = require('../../model/config/config.model')
+const servers = require('../../model/servers/servers.model')
+const serversDb = require('../../model/servers/servers.db')
+const sidecar = require('../../sidecarClient')
+
+const log = core.logger('admin:config')
+
+/** Reads the server row with its token, or answers 404 once, here. */
+async function serverOr404(req, res) {
+  const row = servers.withToken(await serversDb.getServer(req.params.serverId))
+
+  if (!row) {
+    res.status(404).json({ message: 'No such server' })
+    return null
+  }
+
+  return row
+}
+
+/**
+ * Turns a sidecar failure into a sentence an operator can act on.
+ *
+ * The statuses are the ones `sidecarClient` produces, and each names a different
+ * fix: nothing configured, no credential, the wrong protocol, a game that is
+ * down, a game that is up and silent.
+ */
+function unreachable(res, reply, what) {
+  const messages = {
+    'not-configured': 'That server has no sidecar URL configured',
+    'no-token': 'That server has no sidecar token configured',
+    'protocol-mismatch': 'That server’s sidecar speaks a different protocol version',
+    unauthorized: 'That server’s sidecar rejected the stored token',
+    timeout: 'That server’s sidecar did not answer in time',
+    'http-503': 'The game is not connected to that server’s sidecar',
+    'http-504': 'The game did not answer in time',
+  }
+
+  const message = messages[reply.status] || `Could not ${what}`
+  return res.status(503).json({ message, status: reply.status })
+}
+
+/** Every settings file on one host, grouped by the plugin that probably owns it. */
+async function listFiles(req, res) {
+  const server = await serverOr404(req, res)
+  if (!server) return undefined
+
+  const reply = await sidecar.configFiles(server)
+  if (!reply.ok) return unreachable(res, reply, 'read that server’s configuration')
+
+  if (reply.data && reply.data.kind === 'config.error') {
+    return res.status(502).json({ message: refusalMessage(reply.data) })
+  }
+
+  return res.json(model.shapeCatalogue(reply.data))
+}
+
+/** One file: its text, and the reading of it the form is drawn from. */
+async function readFile(req, res) {
+  const path = String(req.query.path || '')
+
+  if (!model.isPlausiblePath(path)) {
+    return res.status(400).json({ message: 'That is not a configuration path' })
+  }
+
+  const server = await serverOr404(req, res)
+  if (!server) return undefined
+
+  const [fileReply, catalogueReply] = await Promise.all([
+    sidecar.configFile(server, path),
+    // Asked alongside, because whether this file is OURS decides whether three
+    // of its keys are locked (D38) — and the answer is the plugin's own name,
+    // never a filename this module matched on.
+    sidecar.configFiles(server),
+  ])
+
+  if (!fileReply.ok) return unreachable(res, fileReply, 'read that file')
+
+  if (fileReply.data && fileReply.data.kind === 'config.error') {
+    return res.status(refusalStatus(fileReply.data)).json({ message: refusalMessage(fileReply.data) })
+  }
+
+  const self = catalogueReply.ok && catalogueReply.data ? catalogueReply.data.self : null
+  return res.json(model.shapeFile(fileReply.data, { self }))
+}
+
+/**
+ * Save one file, and reload whatever owns it.
+ *
+ * Two tiers in one route, because they are one action with two ways of saying
+ * what changed: `edits` is the generated form, `text` is the raw editor.
+ */
+async function writeFile(req, res) {
+  const path = String(req.body.path || '')
+  const tier = Array.isArray(req.body.edits) ? 'form' : 'raw'
+  const reload = req.body.reload ? String(req.body.reload) : null
+  const serverId = req.params.serverId
+
+  if (!model.isPlausiblePath(path)) {
+    return res.status(400).json({ message: 'That is not a configuration path' })
+  }
+
+  const server = await serverOr404(req, res)
+  if (!server) return undefined
+
+  const [current, catalogue] = await Promise.all([
+    sidecar.configFile(server, path),
+    sidecar.configFiles(server),
+  ])
+
+  if (!current.ok) return unreachable(res, current, 'read that file')
+
+  if (current.data && current.data.kind === 'config.error') {
+    return res.status(refusalStatus(current.data)).json({ message: refusalMessage(current.data) })
+  }
+
+  const onDisk = current.data
+  const self = catalogue.ok && catalogue.data ? catalogue.data.self : null
+  const locked = model.lockedKeysFor(path, self)
+
+  // The browser's version against what is on the host right now. The plugin
+  // checks this again before it writes — this check exists so that a conflict
+  // is reported with the current file in hand, which is what a person needs to
+  // merge their change rather than retype it.
+  if (String(req.body.version || '') !== String(onDisk.version)) {
+    return res.status(409).json({
+      message: 'That file changed on the server since you opened it',
+      current: model.shapeFile(onDisk, { self }),
+    })
+  }
+
+  let text
+  let changes
+
+  if (tier === 'form') {
+    const applied = configEdit.applyEdits(onDisk.text, req.body.edits, { locked })
+    if (applied.error) return res.status(400).json({ message: applied.error })
+
+    text = applied.text
+    changes = applied.changes
+  } else {
+    text = String(req.body.text || '')
+
+    try {
+      configEdit.scan(text)
+    } catch (err) {
+      return res.status(400).json({ message: `That is not valid JSON: ${err.message}` })
+    }
+
+    const broken = model.lockedChanges(onDisk.text, text, locked)
+
+    if (broken.length > 0) {
+      return res.status(400).json({
+        message: `${broken.join(', ')} cannot be changed from the website`,
+        locked: broken.map((key) => ({ key, reason: model.LOCKED_REASON[key.toLowerCase()] || null })),
+      })
+    }
+
+    // A raw save records that the document was replaced rather than a field
+    // list, because that is what happened. Pretending to know which keys moved
+    // would mean diffing two documents and reporting a guess as an audit fact.
+    changes = text === onDisk.text ? [] : [{ path: '(whole file)', from: null, to: null }]
+  }
+
+  if (changes.length === 0) {
+    return res.json({ changed: false, version: onDisk.version })
+  }
+
+  const reply = await sidecar.configWrite(server, {
+    files: [{ path, version: onDisk.version, text }],
+    ...(reload ? { reload } : {}),
+  })
+
+  if (!reply.ok) {
+    await record(req, {
+      serverId,
+      path,
+      self,
+      reload,
+      tier,
+      outcome: 'unreachable',
+      changes,
+      versionBefore: onDisk.version,
+      detail: reply.status,
+    })
+
+    return unreachable(res, reply, 'write that file')
+  }
+
+  if (reply.data && reply.data.kind === 'config.error') {
+    await record(req, {
+      serverId,
+      path,
+      self,
+      reload,
+      tier,
+      outcome: 'refused',
+      changes,
+      versionBefore: onDisk.version,
+      detail: refusalMessage(reply.data),
+    })
+
+    return res.status(refusalStatus(reply.data)).json({ message: refusalMessage(reply.data) })
+  }
+
+  const report = model.summariseReport(reply.data)
+  const after = report && report.files[0] ? report.files[0].version : null
+
+  await record(req, {
+    serverId,
+    path,
+    self,
+    reload,
+    tier,
+    outcome: report && report.rolledBack ? 'rolled-back' : 'applied',
+    reloaded: Boolean(report && report.reloaded),
+    changes,
+    versionBefore: onDisk.version,
+    versionAfter: after,
+    detail: report ? report.reason : null,
+  })
+
+  // 200 either way. A rollback is a round trip that worked and an edit that did
+  // not, and the body says which — collapsing it into a 5xx would throw away
+  // the log line that explains it.
+  return res.json({ changed: true, report })
+}
+
+/** What has been written to this server's configuration lately, and by whom. */
+async function history(req, res) {
+  try {
+    return res.json({ writes: await db.recentWrites(req.params.serverId, req.query.limit) })
+  } catch (err) {
+    log.error('failed to read the configuration history', { error: err.message })
+    return res.status(500).json({ message: 'Failed to read the configuration history' })
+  }
+}
+
+/** One audit row, plus the activity entry core owns. Never lets a logging failure fail a save. */
+async function record(req, row) {
+  try {
+    await db.recordWrite({
+      ...row,
+      plugin: model.isBridgeConfig(row.path, row.self) ? row.self : pluginOf(row.path),
+      reloadTarget: row.reload,
+      userId: req.user ? req.user.id : null,
+    })
+
+    await core.activity.log({
+      req,
+      action: 'rust.config.write',
+      detail: {
+        server: row.serverId,
+        path: row.path,
+        tier: row.tier,
+        outcome: row.outcome,
+        reload: row.reload || null,
+        fields: Array.isArray(row.changes) ? row.changes.length : 0,
+      },
+    })
+  } catch (err) {
+    log.error('failed to record a configuration write', { path: row.path, error: err.message })
+  }
+}
+
+function pluginOf(path) {
+  return String(path).includes('/') ? String(path).split('/')[0] : String(path).replace(/\.json$/i, '')
+}
+
+/** A `config.error` frame as a sentence. */
+function refusalMessage(frame) {
+  const reasons = {
+    busy: 'Another configuration write on that server is still finishing',
+    conflict: 'That file changed on the server since you opened it',
+    invalid: 'The game refused that file: it is not valid JSON',
+    missing: 'That file is not on that server',
+    path: 'That path is not inside the server’s configuration directory',
+    'too-large': 'That file is larger than the bridge will carry',
+    'too-many': 'That save touches too many files',
+    'reload-self': 'The bridge plugin cannot be reloaded from the website',
+    'reload-failed': 'The game could not reload that plugin',
+    unwritable: 'The game could not write that file',
+    unreadable: 'The game could not read that file',
+    'no-root': 'That framework reports no configuration directory',
+  }
+
+  const base = reasons[frame.reason] || 'The game refused that configuration change'
+  return frame.detail ? `${base} (${frame.detail})` : base
+}
+
+/** A refusal's status: the caller's fault where it is, the far end's where it is not. */
+function refusalStatus(frame) {
+  if (frame.reason === 'conflict') return 409
+  if (frame.reason === 'busy') return 409
+  if (['path', 'missing', 'invalid', 'too-large', 'too-many', 'reload-self'].includes(frame.reason)) return 400
+  return 502
+}
+
+module.exports = { listFiles, readFile, writeFile, history, refusalMessage, refusalStatus }

server/router/admin/config.router.js

@@ -0,0 +1,108 @@
+// ── Admin · Rust · Mod configuration ──────────────────────────────────────
+//
+// Mounted under the admin tier's `/rust` prefix, so every path here is
+// `/api/v1/admin/rust/config…`. A **nested** `use()` rather than a second mount,
+// because a mount prefix is one path segment — core's own check is
+// `/^\/[a-z0-9][a-z0-9-]*$/`, so `/rust/config` could never be declared in
+// `module.json`. (The OpenAPI generator follows the require and prefixes these
+// correctly regardless, which phase 7 established the hard way.)
+//
+// **Every route is `requireRole('admin')`**, on top of the tier's own gate. This
+// is a website form writing files onto a game host and reloading its plugins,
+// which is the most powerful thing this module can do to somebody's server.
+// There is still no module-declared site permission at MODULE_API 1.10.0 — R18
+// asked for one and hits the same wall phase 7 did — so role is the whole of the
+// available vocabulary, and `admin` is the honest choice within it.
+
+const core = require('../../core')
+
+const express = core.express
+const config = require('./config.controller')
+const { requireRole, validate } = core.middleware
+const { body, param, query } = core.validator
+
+const configRouter = express.Router()
+
+/** A server id, as every other route in this module spells it. */
+const SERVER_ID = /^[a-z0-9][a-z0-9-]{0,63}$/
+
+/**
+ * A plugin name to reload.
+ *
+ * Shape only. Whether the name is loaded — and whether it is the bridge itself,
+ * which cannot reload itself without closing the link carrying the answer — is
+ * the plugin's decision, because it is the only process that knows.
+ */
+const PLUGIN_NAME = /^[A-Za-z0-9_.-]{1,128}$/
+
+configRouter.get(
+  '/:serverId/files',
+  // #swagger.tags = ['Admin · Rust']
+  // #swagger.summary = 'Every plugin configuration file on one server'
+  // #swagger.description = 'A live recursive walk of the game host’s configuration directory, grouped by the plugin each file probably belongs to, plus every plugin currently loaded. The root comes from the mod framework, so it is `oxide/config` on Oxide and `carbon/configs` on Carbon. Files past the size limit are listed and marked un-editable rather than hidden. The game’s data directory is never walked.'
+  /* #swagger.responses[200] = { description: 'The configuration tree and the loaded plugins' } */
+  /* #swagger.responses[503] = { description: 'The sidecar or the game is unreachable' } */
+  requireRole('admin'),
+  param('serverId').matches(SERVER_ID),
+  validate,
+  config.listFiles,
+)
+
+configRouter.get(
+  '/:serverId/file',
+  // #swagger.tags = ['Admin · Rust']
+  // #swagger.summary = 'One configuration file'
+  // #swagger.description = 'The file’s text, the version a save must present back, and the field list the generated form is drawn from — types, keys, and which values are credentials. A file that is already broken on disk still opens, with the parse error, because the raw tier is the only thing that can fix it.'
+  /* #swagger.responses[200] = { description: 'The file and the reading of it' } */
+  /* #swagger.responses[400] = { description: 'Not a configuration path' } */
+  /* #swagger.responses[503] = { description: 'The sidecar or the game is unreachable' } */
+  requireRole('admin'),
+  param('serverId').matches(SERVER_ID),
+  query('path').isString().isLength({ min: 1, max: 255 }),
+  validate,
+  config.readFile,
+)
+
+configRouter.post(
+  '/:serverId/file',
+  // #swagger.tags = ['Admin · Rust']
+  // #swagger.summary = 'Save a configuration file and reload its plugin'
+  // #swagger.description = 'Send `edits` (the generated form: pointers and literals, type-preserving) or `text` (the raw tier: the whole document). `version` must match what the host holds or the save is refused 409 with the current file. The game backs the file up, writes it, reloads the named plugin, and **restores the old file automatically** if the plugin does not come back — which is answered 200 with `report.rolledBack`, because a rollback is a round trip that worked and an edit that did not.'
+  /* #swagger.responses[200] = { description: 'What happened: applied, or rolled back with the reason' } */
+  /* #swagger.responses[400] = { description: 'Invalid body, an edit the form may not make, or a locked key' } */
+  /* #swagger.responses[409] = { description: 'The file changed on the host since it was read' } */
+  /* #swagger.responses[503] = { description: 'The sidecar or the game is unreachable' } */
+  requireRole('admin'),
+  param('serverId').matches(SERVER_ID),
+  body('path').isString().isLength({ min: 1, max: 255 }),
+  body('version').isString().isLength({ min: 1, max: 64 }),
+  body('reload').optional({ values: 'falsy' }).matches(PLUGIN_NAME),
+  // One tier or the other, never both and never neither. `edits` carries the
+  // form's pointers and literals; `text` is the whole document.
+  body('edits').optional().isArray({ max: 500 }),
+  body('text').optional().isString().isLength({ max: 262144 }),
+  body().custom((value) => {
+    const hasEdits = Array.isArray(value.edits)
+    const hasText = typeof value.text === 'string'
+
+    if (hasEdits === hasText) throw new Error('send either edits or text')
+    return true
+  }),
+  validate,
+  config.writeFile,
+)
+
+configRouter.get(
+  '/:serverId/writes',
+  // #swagger.tags = ['Admin · Rust']
+  // #swagger.summary = 'Recent configuration writes'
+  // #swagger.description = 'The audit trail for one server: who changed which field, from what to what, whether the plugin reloaded, and whether the change was rolled back. Refused and unreachable attempts are recorded too — an operator asking why a setting is not what they set needs to see that somebody tried. Values of credential-shaped fields are never stored.'
+  /* #swagger.responses[200] = { description: 'The recent writes, newest first' } */
+  requireRole('admin'),
+  param('serverId').matches(SERVER_ID),
+  query('limit').optional().isInt({ min: 1, max: 200 }),
+  validate,
+  config.history,
+)
+
+module.exports = configRouter

server/router/admin/permissions.controller.js

@@ -0,0 +1,424 @@
+// ── Admin · Rust · Permissions ────────────────────────────────────────────
+//
+// The authoring surface for R2. Everything here writes to the site's own tables
+// and marks the affected servers dirty; nothing here talks to a game. The push
+// is `permSync.js`'s loop, which is deliberate — a form that wrote to six game
+// hosts inside the request would fail differently for each of them and have no
+// honest status code to answer with.
+//
+// **The one exception is "sync now"**, which runs the loop's pass for one server
+// and waits for it. It exists because an operator who has just changed something
+// wants to see it land, and because waiting thirty seconds to find out that a
+// server is unreachable is a bad way to learn it.
+//
+// Every write logs an activity row. These rows decide who may do what inside
+// somebody's game server, which is the one thing on this module's admin tier
+// more consequential than the sidecar credential.
+
+const core = require('../../core')
+
+const db = require('../../model/permissions/permissions.db')
+const model = require('../../model/permissions/permissions.model')
+const permSync = require('../../permSync')
+const servers = require('../../model/servers/servers.model')
+
+const log = core.logger('admin:permissions')
+
+/** Everything the screen renders: groups, grants, drift, the catalogue, per-server state. */
+async function overview(req, res) {
+  try {
+    res.json(await model.overview())
+  } catch (err) {
+    log.error('failed to read the permission model', { error: err.message })
+    res.status(500).json({ message: 'Failed to read the permission model' })
+  }
+}
+
+/**
+ * Create or update a group.
+ *
+ * The permission list is part of the same write, because that is how the form
+ * edits it: a group and what it carries are one idea on the screen, and two
+ * requests would leave a group briefly carrying the wrong set.
+ */
+async function putGroup(req, res) {
+  const name = model.normaliseName(req.params.name)
+  const scope = String(req.body.scope || model.FLEET)
+
+  try {
+    if (scope !== model.FLEET && !(await knownServer(scope))) {
+      return res.status(400).json({ message: 'That scope names no configured server' })
+    }
+
+    const previous = await db.getGroup(name)
+
+    await db.upsertGroup({
+      name,
+      title: String(req.body.title || name),
+      rank: Number(req.body.rank) || 0,
+      scope,
+    })
+
+    const permissions = [...new Set((req.body.permissions || []).map(model.normaliseName))].filter(Boolean)
+    await db.setGroupPermissions(name, permissions)
+
+    // Both scopes: a group that moved from one server to another has to be
+    // retired from where it was as well as applied where it now is, and only the
+    // old scope knows the first half.
+    await db.markDirty(scope)
+    if (previous && previous.scope !== scope) await db.markDirty(previous.scope)
+
+    await core.activity.log({
+      req,
+      action: previous ? 'rust.perm.group.update' : 'rust.perm.group.create',
+      detail: { group: name, scope, permissions: permissions.length },
+    })
+
+    return res.status(204).end()
+  } catch (err) {
+    log.error('failed to save a group', { group: name, error: err.message })
+    return res.status(500).json({ message: 'Failed to save that group' })
+  }
+}
+
+async function deleteGroup(req, res) {
+  const name = model.normaliseName(req.params.name)
+
+  try {
+    const existing = await db.getGroup(name)
+    if (!existing) return res.status(404).json({ message: 'No such group' })
+
+    await db.deleteGroup(name)
+    await db.markDirty(existing.scope)
+
+    await core.activity.log({ req, action: 'rust.perm.group.delete', detail: { group: name } })
+
+    return res.status(204).end()
+  } catch (err) {
+    log.error('failed to delete a group', { group: name, error: err.message })
+    return res.status(500).json({ message: 'Failed to delete that group' })
+  }
+}
+
+async function addMember(req, res) {
+  const name = model.normaliseName(req.params.name)
+
+  try {
+    const group = await db.getGroup(name)
+    if (!group) return res.status(404).json({ message: 'No such group' })
+
+    const userId = await resolveUser(req.body)
+    if (!userId) return res.status(404).json({ message: 'No account on this site has that name' })
+
+    await db.addGroupMember(name, userId, req.user ? req.user.id : null)
+    await db.markDirty(group.scope)
+
+    await core.activity.log({
+      req,
+      action: 'rust.perm.member.add',
+      detail: { group: name, userId },
+    })
+
+    return res.status(204).end()
+  } catch (err) {
+    // A user id that names nobody fails on the foreign key rather than on a
+    // check of our own: the row is the constraint, and one round trip is
+    // cheaper than two.
+    log.error('failed to add a member', { group: name, userId, error: err.message })
+    return res.status(400).json({ message: 'That account could not be added to the group' })
+  }
+}
+
+async function removeMember(req, res) {
+  const name = model.normaliseName(req.params.name)
+  const userId = Number(req.params.userId)
+
+  try {
+    const group = await db.getGroup(name)
+    if (!group) return res.status(404).json({ message: 'No such group' })
+
+    const removed = await db.removeGroupMember(name, userId)
+    if (!removed) return res.status(404).json({ message: 'That account is not in the group' })
+
+    await db.markDirty(group.scope)
+    await core.activity.log({
+      req,
+      action: 'rust.perm.member.remove',
+      detail: { group: name, userId },
+    })
+
+    return res.status(204).end()
+  } catch (err) {
+    log.error('failed to remove a member', { group: name, userId, error: err.message })
+    return res.status(500).json({ message: 'Failed to remove that account from the group' })
+  }
+}
+
+/**
+ * Grant one permission to one person.
+ *
+ * `source` is fixed at `admin` here and is not accepted from the body: the
+ * column exists so phase 13's event actions can write their own rows through the
+ * same table, and a route that let a caller choose would make "who gave this"
+ * unanswerable the first time somebody passed the wrong string.
+ */
+async function addGrant(req, res) {
+  const permission = model.normaliseName(req.body.permission)
+  const scope = String(req.body.scope || model.FLEET)
+  let userId = null
+
+  try {
+    if (scope !== model.FLEET && !(await knownServer(scope))) {
+      return res.status(400).json({ message: 'That scope names no configured server' })
+    }
+
+    userId = await resolveUser(req.body)
+    if (!userId) return res.status(404).json({ message: 'No account on this site has that name' })
+
+    const { inserted } = await db.insertGrant({
+      userId,
+      permission,
+      scope,
+      source: 'admin',
+      note: req.body.note ? String(req.body.note).slice(0, 255) : null,
+      grantedBy: req.user ? req.user.id : null,
+    })
+
+    if (inserted) {
+      await db.markDirty(scope)
+      await core.activity.log({
+        req,
+        action: 'rust.perm.grant',
+        detail: { userId, permission, scope },
+      })
+    }
+
+    return res.status(inserted ? 201 : 200).json({ granted: inserted })
+  } catch (err) {
+    log.error('failed to grant', { userId, permission, error: err.message })
+    return res.status(400).json({ message: 'That permission could not be granted' })
+  }
+}
+
+async function removeGrant(req, res) {
+  const id = Number(req.params.id)
+
+  try {
+    const grant = await db.getGrant(id)
+    if (!grant) return res.status(404).json({ message: 'No such grant' })
+
+    await db.deleteGrant(id)
+    await db.markDirty(grant.scope)
+
+    await core.activity.log({
+      req,
+      action: 'rust.perm.revoke',
+      detail: { userId: grant.userId, permission: grant.permission, scope: grant.scope },
+    })
+
+    return res.status(204).end()
+  } catch (err) {
+    log.error('failed to revoke a grant', { grant: id, error: err.message })
+    return res.status(500).json({ message: 'Failed to remove that grant' })
+  }
+}
+
+/**
+ * Adopt a hand edit: the site records it as its own.
+ *
+ * It is only possible for a `grant` whose Steam id belongs to a website account,
+ * and the refusal says so — because the alternative is authoring privilege
+ * against a game account no person on this site holds, which is precisely the
+ * thing D28 decided not to do.
+ */
+async function adoptDrift(req, res) {
+  const id = Number(req.params.id)
+
+  try {
+    const row = await db.getDrift(id)
+    if (!row) return res.status(404).json({ message: 'No such drift' })
+
+    if (row.kind !== 'grant' && row.kind !== 'member') {
+      return res.status(400).json({
+        message: 'Only a grant or a membership can be adopted. A permission on a group is edited on the group itself.',
+      })
+    }
+
+    const holder = await holderOf(row.subject)
+
+    if (!holder) {
+      return res.status(409).json({
+        message:
+          'That Steam account is not linked to any account on this site, so there is nobody to author this against. Revoke it instead, or ask the player to link.',
+      })
+    }
+
+    if (row.kind === 'grant') {
+      await db.insertGrant({
+        userId: holder.userId,
+        permission: row.object,
+        scope: row.serverId,
+        source: 'adopted',
+        note: 'Adopted from a hand edit',
+        grantedBy: req.user ? req.user.id : null,
+      })
+    } else {
+      const group = await db.getGroup(row.object)
+      if (!group) return res.status(409).json({ message: 'That group is not authored on this site' })
+
+      await db.addGroupMember(row.object, holder.userId, req.user ? req.user.id : null)
+    }
+
+    // Already in the game, so it is already pushed — recorded as such rather
+    // than left for the next sync to "apply". Without this the row would be
+    // desired-but-not-pushed, which is a state the loop would happily write
+    // again and the game would report as already correct: harmless, and a lie in
+    // the one table that exists to say what this site put there.
+    await db.addPushed(row.serverId, [{ kind: row.kind, subject: row.subject, object: row.object }])
+    await db.deleteDrift(id)
+    await db.markDirty(row.serverId)
+
+    await core.activity.log({
+      req,
+      action: 'rust.perm.drift.adopt',
+      detail: { server: row.serverId, kind: row.kind, subject: row.subject, object: row.object },
+    })
+
+    return res.status(204).end()
+  } catch (err) {
+    log.error('failed to adopt drift', { drift: id, error: err.message })
+    return res.status(500).json({ message: 'Failed to adopt that change' })
+  }
+}
+
+/**
+ * Revoke a hand edit.
+ *
+ * Queued rather than sent: the server may be down, and an instruction that is
+ * dropped because a game host was restarting is exactly the behaviour a site
+ * claiming to be the author of record must not have. The next successful sync
+ * carries it and the queue row goes.
+ */
+async function revokeDrift(req, res) {
+  const id = Number(req.params.id)
+
+  try {
+    const row = await db.getDrift(id)
+    if (!row) return res.status(404).json({ message: 'No such drift' })
+
+    await db.queueRevocation({
+      serverId: row.serverId,
+      kind: row.kind,
+      subject: row.subject,
+      object: row.object,
+      requestedBy: req.user ? req.user.id : null,
+    })
+
+    await db.deleteDrift(id)
+    await db.markDirty(row.serverId)
+
+    await core.activity.log({
+      req,
+      action: 'rust.perm.drift.revoke',
+      detail: { server: row.serverId, kind: row.kind, subject: row.subject, object: row.object },
+    })
+
+    return res.status(202).json({ queued: true })
+  } catch (err) {
+    log.error('failed to queue a revocation', { drift: id, error: err.message })
+    return res.status(500).json({ message: 'Failed to queue that revocation' })
+  }
+}
+
+/** Run the loop's pass now, for one server or for all of them, and report what happened. */
+async function syncNow(req, res) {
+  const serverId = req.body && req.body.serverId ? String(req.body.serverId) : null
+
+  try {
+    if (serverId && !(await knownServer(serverId))) {
+      return res.status(404).json({ message: 'No such server' })
+    }
+
+    await db.markDirty(serverId || model.FLEET)
+    await permSync.tick({ force: serverId })
+
+    await core.activity.log({
+      req,
+      action: 'rust.perm.sync',
+      detail: { server: serverId || 'all' },
+    })
+
+    const state = await model.overview()
+    return res.json({ servers: state.servers, drift: state.drift })
+  } catch (err) {
+    log.error('a forced sync failed', { server: serverId, error: err.message })
+    return res.status(500).json({ message: 'Failed to run the sync' })
+  }
+}
+
+/** Every permission name any configured server has registered, with which ones know it. */
+async function catalogue(req, res) {
+  try {
+    const rows = await db.listCatalogue()
+    res.json({ permissions: groupCatalogue(rows) })
+  } catch (err) {
+    log.error('failed to read the catalogue', { error: err.message })
+    res.status(500).json({ message: 'Failed to read the permission catalogue' })
+  }
+}
+
+function groupCatalogue(rows) {
+  const byPermission = new Map()
+
+  for (const row of rows) {
+    if (!byPermission.has(row.permission)) byPermission.set(row.permission, [])
+    byPermission.get(row.permission).push(row.serverId)
+  }
+
+  return [...byPermission.entries()]
+    .map(([permission, serverIds]) => ({ permission, servers: serverIds }))
+    .sort((a, b) => a.permission.localeCompare(b.permission))
+}
+
+/**
+ * The user id a write is about, from either an id or a username.
+ *
+ * The form sends a name, because a form that made an operator type a numeric id
+ * would be a form nobody could use. The id form stays accepted because the
+ * client already holds one on the panel inside core's user page, and looking a
+ * name back up from it would be a round trip to answer a question it has
+ * already answered.
+ */
+async function resolveUser(body) {
+  if (body.userId) return Number(body.userId)
+  if (!body.username) return null
+
+  const user = await db.findUserByUsername(String(body.username).trim())
+  return user ? user.id : null
+}
+
+/** Whether a scope names a server row. A disabled server still counts — it exists. */
+async function knownServer(id) {
+  const rows = await servers.listForAdmin()
+  return rows.some((row) => row.id === id)
+}
+
+/** The website account that holds a Steam id, or null. */
+async function holderOf(steamId) {
+  const links = await db.listLinks()
+  return links.find((link) => link.steamId === steamId) || null
+}
+
+module.exports = {
+  overview,
+  putGroup,
+  deleteGroup,
+  addMember,
+  removeMember,
+  addGrant,
+  removeGrant,
+  adoptDrift,
+  revokeDrift,
+  syncNow,
+  catalogue,
+}

server/router/admin/permissions.router.js

@@ -0,0 +1,184 @@
+// ── Admin · Rust · Permissions ────────────────────────────────────────────
+//
+// Mounted under the admin tier's `/rust` prefix, so every path here is
+// `/api/v1/admin/rust/permissions…`. It is a second router rather than more
+// routes on `rust.router.js` because it is a second subject: that one configures
+// the bridge, this one authors privilege inside somebody's game.
+//
+// **Every route is `requireRole('admin')`.** The admin tier's own gate admits
+// editors and moderators, and a moderator being able to grant themselves
+// `kits.admin` on six servers is the whole of R1's "a weak link is now a
+// privilege-escalation path" arriving through the front door instead. The tier
+// gate is not re-implemented; this is one gate on top of it, exactly as the
+// server-configuration routes do it.
+//
+// There is no module-declared site permission to gate these more finely with —
+// `MODULE_API.md` has no such member at 1.10.0 — so role is the whole of the
+// available vocabulary, and `admin` is the honest choice within it.
+
+const core = require('../../core')
+
+const express = core.express
+const permissions = require('./permissions.controller')
+const { requireRole, validate } = core.middleware
+const { body, param } = core.validator
+
+const permissionsRouter = express.Router()
+
+/** A permission or group name, as both mod frameworks store them. */
+const NAME = /^[a-z0-9][a-z0-9._-]{0,127}$/i
+
+permissionsRouter.get(
+  '/',
+  // #swagger.tags = ['Admin · Rust']
+  // #swagger.summary = 'The whole permission model'
+  // #swagger.description = 'Groups with their permissions and members, direct grants, the drift each server reported, the option source of registered permission names, and the sync state of every configured server.'
+  /* #swagger.responses[200] = { description: 'The authored model and what each game reported', content: { "application/json": { schema: { $ref: "#/components/schemas/RustPermissionModel" } } } } */
+  requireRole('admin'),
+  permissions.overview,
+)
+
+permissionsRouter.get(
+  '/catalogue',
+  // #swagger.tags = ['Admin · Rust']
+  // #swagger.summary = 'Permission names the servers have registered'
+  // #swagger.description = 'What the loaded plugins on each configured server have registered, cached from the last sync. It is the option source for the authoring form: a permission no server knows cannot be granted, because `GrantUserPermission` silently does nothing for an unregistered name.'
+  /* #swagger.responses[200] = { description: 'Every registered name, and which servers know it', content: { "application/json": { schema: { $ref: "#/components/schemas/RustPermissionCatalogue" } } } } */
+  requireRole('admin'),
+  permissions.catalogue,
+)
+
+permissionsRouter.put(
+  '/groups/:name',
+  // #swagger.tags = ['Admin · Rust']
+  // #swagger.summary = 'Create or update a permission group'
+  // #swagger.description = 'Writes the group and the permissions it carries in one request, because they are one idea on the form. `scope` is a server id or `*` for the whole fleet. The group is mirrored into each in-scope game as a real group, so third-party plugins that read group membership see it.'
+  /* #swagger.responses[204] = { description: 'Saved' } */
+  /* #swagger.responses[400] = { description: 'Invalid body, or a scope naming no configured server' } */
+  requireRole('admin'),
+  param('name').matches(NAME).withMessage('a group name is letters, digits, dots, dashes and underscores'),
+  body('title').optional().isString().trim().isLength({ max: 120 }),
+  body('rank').optional().isInt({ min: -1000, max: 1000 }).toInt(),
+  body('scope').optional().isString().isLength({ min: 1, max: 64 }),
+  body('permissions').optional().isArray({ max: 500 }),
+  body('permissions.*').isString().matches(NAME),
+  validate,
+  permissions.putGroup,
+)
+
+permissionsRouter.delete(
+  '/groups/:name',
+  // #swagger.tags = ['Admin · Rust']
+  // #swagger.summary = 'Delete a permission group'
+  // #swagger.description = 'Removes the group, its permission list and its membership from the site. The next sync retires the group from every server it had been pushed to — a group the site authored and has withdrawn is removed from the game, unlike one somebody created by hand.'
+  /* #swagger.responses[204] = { description: 'Deleted' } */
+  /* #swagger.responses[404] = { description: 'No such group' } */
+  requireRole('admin'),
+  param('name').isString().isLength({ min: 1, max: 64 }),
+  validate,
+  permissions.deleteGroup,
+)
+
+permissionsRouter.post(
+  '/groups/:name/members',
+  // #swagger.tags = ['Admin · Rust']
+  // #swagger.summary = 'Put an account in a group'
+  // #swagger.description = 'Membership is authored against a website user and reaches every Steam account they have linked. A member who has never connected to a server cannot be placed in its store yet — the sync reports them as pending and the membership lands on their first connection.'
+  /* #swagger.responses[204] = { description: 'Added' } */
+  /* #swagger.responses[404] = { description: 'No such group' } */
+  requireRole('admin'),
+  param('name').isString().isLength({ min: 1, max: 64 }),
+  // Either identifier: the screen sends a name, the panel inside core's own user
+  // page already holds an id.
+  body('userId').optional().isInt({ min: 1 }).toInt(),
+  body('username').optional().isString().trim().isLength({ min: 1, max: 64 }),
+  validate,
+  permissions.addMember,
+)
+
+permissionsRouter.delete(
+  '/groups/:name/members/:userId',
+  // #swagger.tags = ['Admin · Rust']
+  // #swagger.summary = 'Take an account out of a group'
+  /* #swagger.responses[204] = { description: 'Removed' } */
+  /* #swagger.responses[404] = { description: 'No such group, or that account is not in it' } */
+  requireRole('admin'),
+  param('name').isString().isLength({ min: 1, max: 64 }),
+  param('userId').isInt({ min: 1 }).toInt(),
+  validate,
+  permissions.removeMember,
+)
+
+permissionsRouter.post(
+  '/grants',
+  // #swagger.tags = ['Admin · Rust']
+  // #swagger.summary = 'Grant one permission to one person'
+  // #swagger.description = 'A direct grant, authored against a website user and pushed to every Steam account they have linked. Unlike group membership it reaches a player who has never connected to the server, which is what an entitlement earned on the website has to do.'
+  /* #swagger.responses[201] = { description: 'Granted' } */
+  /* #swagger.responses[200] = { description: 'They already held it; nothing changed' } */
+  /* #swagger.responses[400] = { description: 'Invalid body, or a scope naming no configured server' } */
+  /* #swagger.responses[404] = { description: 'No account on this site has that name' } */
+  requireRole('admin'),
+  body('userId').optional().isInt({ min: 1 }).toInt(),
+  body('username').optional().isString().trim().isLength({ min: 1, max: 64 }),
+  body('permission').isString().matches(NAME),
+  body('scope').optional().isString().isLength({ min: 1, max: 64 }),
+  body('note').optional().isString().isLength({ max: 255 }),
+  validate,
+  permissions.addGrant,
+)
+
+permissionsRouter.delete(
+  '/grants/:id',
+  // #swagger.tags = ['Admin · Rust']
+  // #swagger.summary = 'Remove a grant'
+  // #swagger.description = 'The next sync revokes it in every in-scope game. A player who has already used what it allowed keeps what they did with it — the grant is the entitlement, not the consumption.'
+  /* #swagger.responses[204] = { description: 'Removed' } */
+  /* #swagger.responses[404] = { description: 'No such grant' } */
+  requireRole('admin'),
+  param('id').isInt({ min: 1 }).toInt(),
+  validate,
+  permissions.removeGrant,
+)
+
+permissionsRouter.post(
+  '/drift/:id/adopt',
+  // #swagger.tags = ['Admin · Rust']
+  // #swagger.summary = 'Adopt a hand edit'
+  // #swagger.description = 'Records a grant or membership somebody made in game as one the site authors, so it stops being reported and starts being maintained. It needs a website account holding that Steam id; without one there is nobody to author it against, and the answer is to revoke it or to ask the player to link.'
+  /* #swagger.responses[204] = { description: 'Adopted' } */
+  /* #swagger.responses[400] = { description: 'That kind of drift cannot be adopted' } */
+  /* #swagger.responses[409] = { description: 'That Steam account is linked to nobody on this site' } */
+  requireRole('admin'),
+  param('id').isInt({ min: 1 }).toInt(),
+  validate,
+  permissions.adoptDrift,
+)
+
+permissionsRouter.post(
+  '/drift/:id/revoke',
+  // #swagger.tags = ['Admin · Rust']
+  // #swagger.summary = 'Revoke a hand edit'
+  // #swagger.description = 'Queues the removal rather than performing it: a server that is down keeps the instruction until it comes back. This is the only way the site removes something it did not put there — a sync never does it on its own.'
+  /* #swagger.responses[202] = { description: 'Queued for the next sync' } */
+  /* #swagger.responses[404] = { description: 'No such drift' } */
+  requireRole('admin'),
+  param('id').isInt({ min: 1 }).toInt(),
+  validate,
+  permissions.revokeDrift,
+)
+
+permissionsRouter.post(
+  '/sync',
+  // #swagger.tags = ['Admin · Rust']
+  // #swagger.summary = 'Push the permission set now'
+  // #swagger.description = 'Runs the reconciliation loop’s pass immediately, for one server or for all of them, and answers with what each one reported. The loop does this on its own; the button exists so an operator who has just changed something can see it land, and finds out at once when a server is unreachable.'
+  /* #swagger.responses[200] = { description: 'The state of every server after the pass', content: { "application/json": { schema: { $ref: "#/components/schemas/RustPermissionSyncResult" } } } } */
+  /* #swagger.responses[404] = { description: 'No such server' } */
+  requireRole('admin'),
+  body('serverId').optional().isString().isLength({ min: 1, max: 64 }),
+  validate,
+  permissions.syncNow,
+)
+
+module.exports = permissionsRouter

server/router/admin/rust.controller.js

@@ -23,7 +23,7 @@ async function listServers(req, res) {
     res.json({ servers: await servers.listForAdmin() })
   } catch (err) {
     log.error('failed to read the server list', { error: err.message })
-    res.status(500).json({ error: 'Failed to read the server list' })
+    res.status(500).json({ message: 'Failed to read the server list' })
   }
 }
 
@@ -39,7 +39,7 @@ async function putServer(req, res) {
     // Refusing it up front costs one round trip and saves that hunt. An EXISTING
     // row is a different case: omitting the token is how you say "leave it".
     if (!existing && !sidecarToken) {
-      return res.status(400).json({ error: 'A new server needs its sidecar token' })
+      return res.status(400).json({ message: 'A new server needs its sidecar token' })
     }
 
     await db.upsertServer({
@@ -71,7 +71,7 @@ async function putServer(req, res) {
     return res.status(204).end()
   } catch (err) {
     log.error('failed to save a server', { server: id, error: err.message })
-    return res.status(500).json({ error: 'Failed to save the server' })
+    return res.status(500).json({ message: 'Failed to save the server' })
   }
 }
 
@@ -80,7 +80,7 @@ async function deleteServer(req, res) {
 
   try {
     const existing = await db.getServer(id)
-    if (!existing) return res.status(404).json({ error: 'No such server' })
+    if (!existing) return res.status(404).json({ message: 'No such server' })
 
     await db.deleteServer(id)
     await core.activity.log({ req, action: 'rust.server.delete', detail: { server: id } })
@@ -88,7 +88,7 @@ async function deleteServer(req, res) {
     return res.status(204).end()
   } catch (err) {
     log.error('failed to delete a server', { server: id, error: err.message })
-    return res.status(500).json({ error: 'Failed to delete the server' })
+    return res.status(500).json({ message: 'Failed to delete the server' })
   }
 }
 
@@ -106,7 +106,7 @@ async function testServer(req, res) {
 
   try {
     const row = await db.getServer(id)
-    if (!row) return res.status(404).json({ error: 'No such server' })
+    if (!row) return res.status(404).json({ message: 'No such server' })
 
     const result = await sidecar.health(servers.withToken(row))
 
@@ -125,7 +125,7 @@ async function testServer(req, res) {
     })
   } catch (err) {
     log.error('failed to probe a sidecar', { server: id, error: err.message })
-    return res.status(500).json({ error: 'Failed to probe the sidecar' })
+    return res.status(500).json({ message: 'Failed to probe the sidecar' })
   }
 }
 

server/router/admin/rust.router.js

@@ -27,6 +27,16 @@ const { body, param } = core.validator
 
 const adminRustRouter = express.Router()
 
+// R2's authoring surface, under `/rust/permissions`. Its own file because it is
+// its own subject — this router configures the bridge, that one decides who may
+// do what inside the game the bridge reaches.
+adminRustRouter.use('/permissions', require('./permissions.router'))
+
+// R18's editor, under `/rust/config`. A third subject again: this router
+// configures the BRIDGE, `permissions` decides who may do what inside the game,
+// and this one edits the game host's own plugin settings.
+adminRustRouter.use('/config', require('./config.router'))
+
 adminRustRouter.get(
   '/servers',
   // #swagger.tags = ['Admin · Rust']

server/router/admin/usersRust.controller.js

@@ -0,0 +1,202 @@
+// ── The `admin.users.detail` slot's handlers ──────────────────────────────
+//
+// What an operator can see and do about one website user's Rust identity. The
+// user id is the PARENT's — `req.params.id` off core's `/admin/users/:id` — and
+// every statement here is scoped by it, so a panel opened on one user cannot
+// read or write another's rows by editing a path segment.
+
+const core = require('../../core')
+
+const links = require('../../model/links/links.model')
+const permissionsDb = require('../../model/permissions/permissions.db')
+const permissions = require('../../model/permissions/permissions.model')
+const servers = require('../../model/servers/servers.model')
+
+const log = core.logger('admin')
+
+/**
+ * GET /admin/users/:id/rust/links
+ *
+ * The linked Steam accounts and, per server, what this module knows about the
+ * player behind them — all-time rather than this wipe's, because an operator
+ * looking at a user wants their history and the public leaderboard already
+ * answers the other question.
+ *
+ * **An empty array is an answer.** Most users have no Rust link at all, and the
+ * panel renders nothing rather than an error for them.
+ */
+async function listLinks(req, res) {
+  try {
+    res.json({ links: await links.forAdmin(req.params.id) })
+  } catch (err) {
+    log.error('failed to read a user’s Rust links', { error: err.message })
+    res.status(500).json({ message: 'Failed to read this user’s Rust accounts' })
+  }
+}
+
+/**
+ * DELETE /admin/users/:id/rust/links/:steamId — staff sever a link (D25).
+ *
+ * **This is the counterweight to D23.** The site refuses to move a Steam id that
+ * another website account already holds, and the player's own way out is
+ * `/unlink` in game — which is no way out at all for somebody who has lost access
+ * to that Steam account, or to the site account holding it. Staff are that route.
+ *
+ * Scoped by the parent user id in the statement rather than checked first: the
+ * ownership test and the deletion are one operation, and a link that belongs to a
+ * different user answers 404 from the page it was not on.
+ */
+async function removeLink(req, res) {
+  const { steamId } = req.params
+  const userId = req.params.id
+
+  try {
+    const removed = await links.unlinkOwned(steamId, userId)
+
+    if (!removed) return res.status(404).json({ message: 'That account is not linked to this user' })
+
+    // The one write this panel has, so it is the one thing here worth an audit
+    // row: after phase 7 a link is what permissions are granted against, and
+    // "who severed it" stops being a curiosity.
+    await core.activity.log({
+      req,
+      action: 'rust.account.unlink.staff',
+      detail: { steamId, userId: Number(userId) },
+    })
+
+    return res.json({ unlinked: true })
+  } catch (err) {
+    log.error('failed to unlink a Steam account', { error: err.message })
+    return res.status(500).json({ message: 'Failed to unlink that account' })
+  }
+}
+
+/**
+ * GET /admin/users/:id/rust/permissions
+ *
+ * What this person may do in game, and — the part that is easy to leave out —
+ * whether any of it reaches anybody. A grant against an account with no linked
+ * Steam id is authored, stored, pushed nowhere and looks identical to a working
+ * one on every screen that does not say so.
+ */
+async function listPermissions(req, res) {
+  const userId = Number(req.params.id)
+
+  try {
+    const [groups, groupPermissions, members, grants, allLinks] = await Promise.all([
+      permissionsDb.listGroups(),
+      permissionsDb.listGroupPermissions(),
+      permissionsDb.listGroupMembers(),
+      permissionsDb.listGrants({ userId }),
+      permissionsDb.listLinks(),
+    ])
+
+    const theirs = new Set(
+      members.filter((row) => row.userId === userId).map((row) => row.groupName),
+    )
+
+    const carried = new Map()
+    for (const row of groupPermissions) {
+      if (!carried.has(row.groupName)) carried.set(row.groupName, [])
+      carried.get(row.groupName).push(row.permission)
+    }
+
+    res.json({
+      groups: groups
+        .filter((group) => theirs.has(group.name))
+        .map((group) => ({
+          name: group.name,
+          title: group.title,
+          scope: group.scope,
+          permissions: carried.get(group.name) || [],
+        })),
+      grants: permissions.collapseGrants(grants).map((grant) => ({
+        id: grant.id,
+        permission: grant.permission,
+        scope: grant.scope,
+        source: grant.source,
+        note: grant.note,
+        grantedAt: grant.grantedAt,
+      })),
+      reaches: allLinks.filter((link) => link.userId === userId).map((link) => link.steamId),
+    })
+  } catch (err) {
+    log.error('failed to read a user’s Rust permissions', { error: err.message })
+    res.status(500).json({ message: 'Failed to read this user’s Rust permissions' })
+  }
+}
+
+/** POST /admin/users/:id/rust/permissions/grants */
+async function addGrant(req, res) {
+  const userId = Number(req.params.id)
+  const permission = permissions.normaliseName(req.body.permission)
+  const scope = String(req.body.scope || permissions.FLEET)
+
+  try {
+    if (scope !== permissions.FLEET) {
+      const known = await servers.listForAdmin()
+      if (!known.some((row) => row.id === scope)) {
+        return res.status(400).json({ message: 'That scope names no configured server' })
+      }
+    }
+
+    const { inserted } = await permissionsDb.insertGrant({
+      userId,
+      permission,
+      scope,
+      source: 'admin',
+      note: null,
+      grantedBy: req.user ? req.user.id : null,
+    })
+
+    if (inserted) {
+      await permissionsDb.markDirty(scope)
+      await core.activity.log({
+        req,
+        action: 'rust.perm.grant',
+        detail: { userId, permission, scope },
+      })
+    }
+
+    return res.status(inserted ? 201 : 200).json({ granted: inserted })
+  } catch (err) {
+    log.error('failed to grant a permission', { userId, permission, error: err.message })
+    return res.status(400).json({ message: 'That permission could not be granted' })
+  }
+}
+
+/**
+ * DELETE /admin/users/:id/rust/permissions/grants/:grantId
+ *
+ * **Scoped by the user as well as by the grant**, like every other write in this
+ * panel: a grant id belonging to somebody else answers `404` rather than
+ * removing a privilege from a person whose page nobody was looking at.
+ */
+async function removeGrant(req, res) {
+  const userId = Number(req.params.id)
+  const grantId = Number(req.params.grantId)
+
+  try {
+    const grant = await permissionsDb.getGrant(grantId)
+
+    if (!grant || grant.userId !== userId) {
+      return res.status(404).json({ message: 'That grant does not belong to this user' })
+    }
+
+    await permissionsDb.deleteGrant(grantId)
+    await permissionsDb.markDirty(grant.scope)
+
+    await core.activity.log({
+      req,
+      action: 'rust.perm.revoke',
+      detail: { userId, permission: grant.permission, scope: grant.scope },
+    })
+
+    return res.status(204).end()
+  } catch (err) {
+    log.error('failed to remove a grant', { userId, grant: grantId, error: err.message })
+    return res.status(500).json({ message: 'Failed to remove that permission' })
+  }
+}
+
+module.exports = { listLinks, removeLink, listPermissions, addGrant, removeGrant }

server/router/admin/usersRust.router.js

@@ -0,0 +1,131 @@
+// ── The `admin.users.detail` extension slot ───────────────────────────────
+//
+// R13's first slot, and the phase criterion in one file: *an operator sees the
+// Steam id inside core's own user page*.
+//
+// MODULE_API.md §2.4's fourth mount shape — module routes hanging off a CORE
+// resource. `/admin/users/:id` is a URL core owns and this module has something
+// to say about it, so the routes cannot move behind a `/rust` prefix and cannot
+// be registered anywhere else either. Core declares the slot; a module fills it,
+// and only one module may.
+//
+// Three things about this router that are not true of the other three:
+//
+//   • **`mergeParams: true`**, because the user id belongs to the parent. Without
+//     it `req.params.id` is undefined and every statement here silently scopes to
+//     nothing.
+//   • **The paths keep the module's own segment** (`/rust/links`, not `/links`).
+//     Core owns the resource and other modules may fill their own slots on other
+//     resources; a bare `/links` would be this module claiming a word on a URL it
+//     does not own.
+//   • **The gate is stricter than the admin tier's.** Core's users router is
+//     `requireRole('admin')` and the slot is mounted inside it, so editors and
+//     moderators never reach here — which is right for a surface that can sever
+//     what phases 7 and 13 grant against.
+//
+// The client half is registered under the SAME name (`registry.registerExtension`
+// in `entry.jsx`) and builds its own client for these two routes; a slot passes a
+// component `userId` and nothing else.
+
+const core = require('../../core')
+
+const express = core.express
+const { body, param } = core.validator
+
+const usersRust = require('./usersRust.controller')
+const { validate } = core.middleware
+
+// Same bound the player tier states, for the same reason: nothing but digits
+// reaches a `WHERE steam_id = ?`.
+const STEAM_ID_RE = /^[0-9]{5,32}$/
+
+const usersRustRouter = express.Router({ mergeParams: true })
+
+usersRustRouter.get(
+  '/rust/links',
+  // #swagger.tags = ['Admin · Users']
+  // #swagger.summary = 'A user’s linked Steam accounts and their Rust record (admin only)'
+  // #swagger.description = 'Every Steam account linked to this website user, with the display name the game last saw and, per server, all-time kills / deaths / playtime across every wipe. Fills the admin.users.detail extension slot.'
+  // #swagger.security = [{ "cookieAuth": [] }, { "bearerAuth": [] }]
+  // #swagger.parameters['id'] = { in: 'path', required: true, schema: { type: 'integer' }, description: 'User id.' }
+  /* #swagger.responses[200] = { description: 'Linked accounts', content: { "application/json": { schema: { $ref: "#/components/schemas/RustAdminLinkList" } } } } */
+  param('id').isInt(),
+  validate,
+  usersRust.listLinks,
+)
+
+usersRustRouter.delete(
+  '/rust/links/:steamId',
+  // #swagger.tags = ['Admin · Users']
+  // #swagger.summary = 'Sever a user’s Steam link (admin only)'
+  // #swagger.description = 'Staff release a link on this user’s behalf. It is the counterweight to the site refusing to move a Steam id another account holds: a player who cannot reach that Steam account in game has no other way back. Recorded in the activity log.'
+  // #swagger.security = [{ "cookieAuth": [] }, { "bearerAuth": [] }]
+  // #swagger.parameters['id'] = { in: 'path', required: true, schema: { type: 'integer' }, description: 'User id.' }
+  // #swagger.parameters['steamId'] = { in: 'path', required: true, schema: { type: 'string' }, description: 'The Steam id to release.' }
+  /* #swagger.responses[200] = { description: 'Unlinked', content: { "application/json": { schema: { type: "object", properties: { unlinked: { type: "boolean", example: true } } } } } } */
+  /* #swagger.responses[404] = { description: 'Not linked to this user', content: { "application/json": { schema: { $ref: "#/components/schemas/Error" } } } } */
+  param('id').isInt(),
+  param('steamId').matches(STEAM_ID_RE),
+  validate,
+  usersRust.removeLink,
+)
+
+// ── Phase 7: what this person may do in game ─────────────────────────────
+//
+// The same panel, one section lower. It is here rather than only on the
+// permissions screen because the question an operator actually has is about a
+// PERSON — "why can this player spawn a kit" is asked on their page, not on a
+// list of groups — and because the slot is already the place this module says
+// everything else it knows about one user.
+//
+// Both writes go through the ordinary authored tables and the ordinary loop. A
+// grant made here reaches the game when the mirror next reconciles, which is
+// seconds, and never inside this request.
+
+usersRustRouter.get(
+  '/rust/permissions',
+  // #swagger.tags = ['Admin · Users']
+  // #swagger.summary = 'A user’s Rust privileges (admin only)'
+  // #swagger.description = 'The groups this person is in, the permissions granted to them directly, and the Steam accounts those privileges actually reach. An empty `reaches` means they have linked nothing and hold them on paper only.'
+  // #swagger.security = [{ "cookieAuth": [] }, { "bearerAuth": [] }]
+  // #swagger.parameters['id'] = { in: 'path', required: true, schema: { type: 'integer' }, description: 'User id.' }
+  /* #swagger.responses[200] = { description: 'Their groups and grants', content: { "application/json": { schema: { $ref: "#/components/schemas/RustUserPermissions" } } } } */
+  param('id').isInt(),
+  validate,
+  usersRust.listPermissions,
+)
+
+usersRustRouter.post(
+  '/rust/permissions/grants',
+  // #swagger.tags = ['Admin · Users']
+  // #swagger.summary = 'Grant a Rust permission to this user (admin only)'
+  // #swagger.description = 'Authored against the website account, so it reaches every Steam id they have linked — now and later. `scope` is a server id or `*` for the fleet. The push happens on the mirror’s next pass.'
+  // #swagger.security = [{ "cookieAuth": [] }, { "bearerAuth": [] }]
+  // #swagger.parameters['id'] = { in: 'path', required: true, schema: { type: 'integer' }, description: 'User id.' }
+  /* #swagger.responses[201] = { description: 'Granted' } */
+  /* #swagger.responses[200] = { description: 'They already held it' } */
+  /* #swagger.responses[400] = { description: 'Invalid body, or a scope naming no configured server', content: { "application/json": { schema: { $ref: "#/components/schemas/Error" } } } } */
+  param('id').isInt(),
+  body('permission').isString().matches(/^[a-z0-9][a-z0-9._-]{0,127}$/i),
+  body('scope').optional().isString().isLength({ min: 1, max: 64 }),
+  validate,
+  usersRust.addGrant,
+)
+
+usersRustRouter.delete(
+  '/rust/permissions/grants/:grantId',
+  // #swagger.tags = ['Admin · Users']
+  // #swagger.summary = 'Remove a Rust permission from this user (admin only)'
+  // #swagger.description = 'Scoped to this user as well as to the grant, so a wrong id on the URL removes nothing rather than somebody else’s privilege. The revoke reaches the game on the mirror’s next pass.'
+  // #swagger.security = [{ "cookieAuth": [] }, { "bearerAuth": [] }]
+  // #swagger.parameters['id'] = { in: 'path', required: true, schema: { type: 'integer' }, description: 'User id.' }
+  // #swagger.parameters['grantId'] = { in: 'path', required: true, schema: { type: 'integer' }, description: 'The grant to remove.' }
+  /* #swagger.responses[204] = { description: 'Removed' } */
+  /* #swagger.responses[404] = { description: 'No such grant for this user', content: { "application/json": { schema: { $ref: "#/components/schemas/Error" } } } } */
+  param('id').isInt(),
+  param('grantId').isInt({ min: 1 }).toInt(),
+  validate,
+  usersRust.removeGrant,
+)
+
+module.exports = usersRustRouter

server/router/player/rust.controller.js

@@ -1,11 +1,27 @@
 // ── Player · Rust — the handlers ──────────────────────────────────────────
 //
-// See the router for why this tier is thin in phase 1. The one thing it must not
-// do is reshape the list itself: it calls the same model the public tier does, so
-// the two answers cannot drift while they are meant to be the same.
+// Two things live here now: the server list as a signed-in caller sees it (phase
+// 1's honest placeholder, which must not reshape the list — it calls the same
+// model the public tier does so the two cannot drift), and R1's identity link.
+//
+// ── Every refusal is a sentence, and they are not interchangeable ─────────
+//
+// The link handler's whole job is turning a discriminated result into the right
+// thing to tell a player, and the four wrong answers are wrong in different ways:
+//
+//   • "that code is unknown or expired" → run `/link` again
+//   • "another account holds that Steam id" → run `/unlink` in game, or ask staff
+//   • "we could not reach a server" → try again in a minute; the code is fine
+//   • "no servers are configured" → nothing the player can do at all
+//
+// A player told to run `/link` again when the server their code came from was
+// merely unreachable will run it again, get another code from the same
+// unreachable server, and be told the same thing. That is the failure the
+// `unsure` branch exists to prevent.
 
 const core = require('../../core')
 
+const links = require('../../model/links/links.model')
 const servers = require('../../model/servers/servers.model')
 
 const log = core.logger('player')
@@ -15,8 +31,107 @@ async function listServers(req, res) {
     res.json({ servers: await servers.listPublic() })
   } catch (err) {
     log.error('failed to read the server list', { error: err.message })
-    res.status(500).json({ error: 'Failed to read the server list' })
+    res.status(500).json({ message: 'Failed to read the server list' })
   }
 }
 
-module.exports = { listServers }
+/** GET /player/rust/links — the Steam accounts the caller holds. */
+async function listLinks(req, res) {
+  try {
+    res.json({ links: await links.listForUser(req.user.id) })
+  } catch (err) {
+    log.error('failed to read a player’s links', { error: err.message })
+    res.status(500).json({ message: 'Failed to read your linked accounts' })
+  }
+}
+
+/**
+ * POST /player/rust/link — redeem a code from `/link` in game.
+ *
+ * The fleet loop is the model's (D24); this maps its answer onto a status and a
+ * sentence. **A refused code is a 400 and an unreachable server is a 503**,
+ * because a client that cannot tell them apart cannot tell a player whether to
+ * try again or to go and get a new code.
+ */
+async function confirmLink(req, res) {
+  const code = String(req.body.code || '').trim()
+
+  try {
+    const result = await links.redeem({ code, userId: req.user.id })
+
+    if (result.ok) {
+      // Logged on the player tier too, not only for admin writes: this is the
+      // moment a website account starts being able to hold permissions and
+      // entitlements in a game, and "when did this account become that Steam id"
+      // is a question an operator will eventually need answered.
+      await core.activity.log({
+        req,
+        action: 'rust.account.link',
+        detail: { steamId: result.link.steamId, serverId: result.link.serverId },
+      })
+
+      return res.json({ linked: true, link: result.link, already: Boolean(result.already) })
+    }
+
+    switch (result.reason) {
+      case 'taken':
+        // Naming the holder is deliberate and it is not a leak: the player is
+        // signed in, the account named is one they may well own, and without the
+        // name the advice ("sign in as that account, or ask staff") is unusable.
+        return res.status(409).json({
+          message: result.username
+            ? `That Steam account is already linked to ${result.username}. Run /unlink in game to release it.`
+            : 'That Steam account is already linked to another website account. Run /unlink in game to release it.',
+        })
+
+      case 'unsure':
+        return res.status(503).json({
+          message:
+            'One of the servers could not be reached, so that code could not be checked. ' +
+            'Your code is still good — try again in a minute.',
+        })
+
+      case 'offline':
+        return res.status(503).json({
+          message: 'The game servers are unreachable right now — try again in a minute.',
+        })
+
+      case 'no-servers':
+        return res.status(503).json({ message: 'No Rust servers are configured on this site yet.' })
+
+      default:
+        return res.status(400).json({
+          message: 'That code is unknown or has expired. Type /link in game for a new one.',
+        })
+    }
+  } catch (err) {
+    log.error('failed to confirm a link code', { error: err.message })
+    return res.status(500).json({ message: 'Failed to confirm that code' })
+  }
+}
+
+/**
+ * DELETE /player/rust/links/:steamId — release a link the caller holds.
+ *
+ * Scoped to the caller inside the statement, so "not linked" and "not yours"
+ * answer the same 404 — a signed-in stranger must not be able to discover which
+ * Steam ids are linked by deleting them one at a time.
+ */
+async function removeLink(req, res) {
+  const { steamId } = req.params
+
+  try {
+    const removed = await links.unlinkOwned(steamId, req.user.id)
+
+    if (!removed) return res.status(404).json({ message: 'That account is not linked to you' })
+
+    await core.activity.log({ req, action: 'rust.account.unlink', detail: { steamId } })
+
+    return res.json({ unlinked: true })
+  } catch (err) {
+    log.error('failed to unlink', { error: err.message })
+    return res.status(500).json({ message: 'Failed to unlink that account' })
+  }
+}
+
+module.exports = { listServers, listLinks, confirmLink, removeLink }

server/router/player/rust.router.js

@@ -4,38 +4,109 @@
 // sits behind `noindex, requireAuth`, so every handler here has a signed-in user
 // and none of them re-implements that check.
 //
-// ── Why this tier exists in phase 1, and what it honestly holds ───────────
+// ── Why this tier exists in phase 1, and what it holds now ────────────────
 //
 // R14 puts this module on all three tiers from the start, and the loader holds
 // `module.json`'s `mounts` against what is actually registered in **both**
 // directions — a declared prefix that never gets a router fails the load. So the
 // declaration and the registration land together or not at all.
 //
-// What this tier will carry is the signed-in view of a server: the viewer's own
-// linked Steam identity, their own presence, their own entitlements. None of that
-// exists yet — identity is a later phase — so the one route here answers the
-// server list as the signed-in caller sees it, which is currently the same list
-// the public tier serves.
+// Phase 1 said this tier would carry the signed-in view of a server — the
+// viewer's own linked Steam identity, their own presence, their own entitlements
+// — and that identity was a later phase. This is that phase: `/links`, `/link`
+// and `DELETE /links/:steamId` are R1, and everything phases 7 and 13 hand out is
+// hung off the row they write.
 //
-// That is deliberately a real route and not a placeholder: it is the URL the app
-// and the SPA will call, and it starts answering correctly now rather than
-// changing address later. What it must not become is a second copy of the public
-// shape — it delegates to the same model, so the two cannot drift.
+// `/servers` stays what it was: the same list the public tier serves, answered on
+// the authenticated tier so per-player detail can be added without moving the
+// address. It delegates to the same model, so the two cannot drift.
 
 const core = require('../../core')
 
 const express = core.express
-const servers = require('./rust.controller')
+const { body, param } = core.validator
+
+const rust = require('./rust.controller')
+const { validate, rateLimit } = core.middleware
 
 const playerRustRouter = express.Router()
 
+// A Steam id as the game states it — `BasePlayer.UserIDString`, a 17-digit
+// SteamID64. Bounded rather than pinned at 17 because the column is a string and
+// a test rig's ids are shorter; what matters is that nothing but digits reaches a
+// `WHERE steam_id = ?`.
+const STEAM_ID_RE = /^[0-9]{5,32}$/
+
+/**
+ * R1 requires the link code be rate-limited, and this is where that lands.
+ *
+ * The code is six characters from a 32-glyph alphabet, so guessing one is a
+ * 1-in-10⁹ shot — but only while the guesser is made to pay for each attempt.
+ * Ten per quarter-hour per IP turns that into centuries; without it a script
+ * could work through the space in an afternoon, and phases 7 and 13 make the
+ * prize a set of in-game permissions and entitlements rather than a cosmetic
+ * badge.
+ *
+ * Its own limiter rather than core's `accountChangeLimiter`: this is guessing
+ * somebody else's secret, not changing your own password, and sharing a counter
+ * would mean one of the two silently sets the policy for the other.
+ */
+const linkLimiter = rateLimit({
+  windowMs: 15 * 60 * 1000,
+  max: 10,
+  label: 'rust-link-code',
+  message: 'Too many link attempts. Please try again later.',
+})
+
 playerRustRouter.get(
   '/servers',
   // #swagger.tags = ['Player · Rust']
   // #swagger.summary = 'The Rust servers, for a signed-in player'
   // #swagger.description = 'The same servers the public list carries, answered on the authenticated tier. It is the address a signed-in client calls, so that per-player detail can be added here without moving it. Requires a session.'
   /* #swagger.responses[200] = { description: 'The server list', content: { "application/json": { schema: { $ref: "#/components/schemas/RustServerList" } } } } */
-  servers.listServers,
+  rust.listServers,
+)
+
+playerRustRouter.get(
+  '/links',
+  // #swagger.tags = ['Player · Rust']
+  // #swagger.summary = 'The Steam accounts the caller has linked'
+  // #swagger.description = 'Every Steam account linked to the signed-in user, newest first. A link is fleet-wide: it is keyed by Steam id, not by server, because a Steam account is one person across every server an operator runs.'
+  // #swagger.security = [{ "cookieAuth": [] }, { "bearerAuth": [] }]
+  /* #swagger.responses[200] = { description: 'Linked accounts', content: { "application/json": { schema: { $ref: "#/components/schemas/RustLinkList" } } } } */
+  rust.listLinks,
+)
+
+playerRustRouter.post(
+  '/link',
+  // #swagger.tags = ['Player · Rust']
+  // #swagger.summary = 'Link a Steam account with a one-time code from /link in game'
+  // #swagger.description = 'The player types /link in game, the plugin hands them a six-character code privately, and they enter it here within five minutes. The site asks each configured server in turn until one recognises the code. A Steam account already linked to a different website account is refused rather than moved — the way out is /unlink in game.'
+  // #swagger.security = [{ "cookieAuth": [] }, { "bearerAuth": [] }]
+  /* #swagger.requestBody = { required: true, content: { "application/json": { schema: { $ref: "#/components/schemas/RustLinkRequest" } } } } */
+  /* #swagger.responses[200] = { description: 'Linked', content: { "application/json": { schema: { $ref: "#/components/schemas/RustLinkResult" } } } } */
+  /* #swagger.responses[400] = { description: 'Unknown or expired code', content: { "application/json": { schema: { $ref: "#/components/schemas/Error" } } } } */
+  /* #swagger.responses[409] = { description: 'That Steam account is linked to another website account', content: { "application/json": { schema: { $ref: "#/components/schemas/Error" } } } } */
+  /* #swagger.responses[429] = { description: 'Too many link attempts', content: { "application/json": { schema: { $ref: "#/components/schemas/Error" } } } } */
+  /* #swagger.responses[503] = { description: 'A server could not be reached — the code is still good', content: { "application/json": { schema: { $ref: "#/components/schemas/Error" } } } } */
+  linkLimiter,
+  body('code').isString().trim().isLength({ min: 4, max: 32 }),
+  validate,
+  rust.confirmLink,
+)
+
+playerRustRouter.delete(
+  '/links/:steamId',
+  // #swagger.tags = ['Player · Rust']
+  // #swagger.summary = 'Release a Steam account the caller has linked'
+  // #swagger.description = 'Removes the caller’s own link. Scoped to the caller in the statement, so a link belonging to somebody else answers the same 404 as one that does not exist.'
+  // #swagger.security = [{ "cookieAuth": [] }, { "bearerAuth": [] }]
+  // #swagger.parameters['steamId'] = { in: 'path', required: true, schema: { type: 'string' }, description: 'The Steam id to release.' }
+  /* #swagger.responses[200] = { description: 'Unlinked', content: { "application/json": { schema: { type: "object", properties: { unlinked: { type: "boolean", example: true } } } } } } */
+  /* #swagger.responses[404] = { description: 'Not linked to the caller', content: { "application/json": { schema: { $ref: "#/components/schemas/Error" } } } } */
+  param('steamId').matches(STEAM_ID_RE),
+  validate,
+  rust.removeLink,
 )
 
 module.exports = playerRustRouter

server/router/public/rust.controller.js

@@ -21,7 +21,31 @@ async function listServers(req, res) {
     res.json({ servers: await servers.listPublic() })
   } catch (err) {
     log.error('failed to read the server list', { error: err.message })
-    res.status(500).json({ error: 'Failed to read the server list' })
+    res.status(500).json({ message: 'Failed to read the server list' })
+  }
+}
+
+/**
+ * One server, or a 404.
+ *
+ * **The 404 is the feature.** Everything else under `/servers/:id` answers an
+ * empty list for a server that does not exist — an unknown id has no events, no
+ * leaderboard and nobody online, and each of those is a perfectly good answer to
+ * the question it was asked. Only this route can tell the page that the server
+ * itself is not there, which is what stops `/rust/servers/typo` rendering as a
+ * quiet server with nothing to say.
+ */
+async function getServer(req, res) {
+  try {
+    const server = await servers.getPublic(req.params.id)
+    if (!server) {
+      res.status(404).json({ message: 'No such server' })
+      return
+    }
+    res.json({ server })
+  } catch (err) {
+    log.error('failed to read a server', { server: req.params.id, error: err.message })
+    res.status(500).json({ message: 'Failed to read the server' })
   }
 }
 
@@ -45,7 +69,7 @@ async function listEvents(req, res) {
     })
   } catch (err) {
     log.error('failed to read events', { server: req.params.id, error: err.message })
-    res.status(500).json({ error: 'Failed to read events' })
+    res.status(500).json({ message: 'Failed to read events' })
   }
 }
 
@@ -61,7 +85,7 @@ async function listLeaderboard(req, res) {
     })
   } catch (err) {
     log.error('failed to read the leaderboard', { server: req.params.id, error: err.message })
-    res.status(500).json({ error: 'Failed to read the leaderboard' })
+    res.status(500).json({ message: 'Failed to read the leaderboard' })
   }
 }
 
@@ -70,7 +94,7 @@ async function listWipes(req, res) {
     res.json({ wipes: await events.wipes(req.params.id) })
   } catch (err) {
     log.error('failed to read wipes', { server: req.params.id, error: err.message })
-    res.status(500).json({ error: 'Failed to read wipes' })
+    res.status(500).json({ message: 'Failed to read wipes' })
   }
 }
 
@@ -79,8 +103,8 @@ async function listOnline(req, res) {
     res.json({ players: await events.online(req.params.id) })
   } catch (err) {
     log.error('failed to read presence', { server: req.params.id, error: err.message })
-    res.status(500).json({ error: 'Failed to read who is online' })
+    res.status(500).json({ message: 'Failed to read who is online' })
   }
 }
 
-module.exports = { listServers, listEvents, listLeaderboard, listWipes, listOnline }
+module.exports = { listServers, getServer, listEvents, listLeaderboard, listWipes, listOnline }

server/router/public/rust.router.js

@@ -52,6 +52,18 @@ rustRouter.get(
 // Protocol 2 carries IP addresses and player reports; they are stored, and they
 // do not come out here.
 
+rustRouter.get(
+  '/servers/:id',
+  // #swagger.tags = ['Public · Rust']
+  // #swagger.summary = 'One Rust server'
+  // #swagger.description = 'The same shape the list answers with, for one server, and a `404` when there is no such server or an operator has disabled it. The detail page needs the difference: every other route under this path answers an empty list for an id that does not exist, because an unknown server genuinely has no events and nobody online.'
+  // #swagger.parameters['id'] = { in: 'path', required: true, description: 'The server’s slug', schema: { type: 'string' } }
+  /* #swagger.responses[200] = { description: 'The server' } */
+  /* #swagger.responses[404] = { description: 'No such server, or it is disabled' } */
+  siteMode,
+  servers.getServer,
+)
+
 rustRouter.get(
   '/servers/:id/events',
   // #swagger.tags = ['Public · Rust']

server/scripts/swaggerFragment.js

@@ -60,6 +60,32 @@ const TIER_BASE = {
   player: '/api/v1/player',
 }
 
+// MODULE_API.md §2.4's slot table, and the FOURTH base this generator needs.
+//
+// Phase 6 found the hole: a slot router is not registered under a tier, so the
+// loop below could not see it and the two routes it serves were generated by
+// nothing — a fragment that was internally consistent and silently described two
+// routes fewer than the module serves. The frozen-manifest check would have
+// caught it (every route must have an operation), which is precisely why that
+// check exists; this is the fix it points at.
+//
+// A slot's mount is CORE's, not ours, so it cannot be derived from anything in
+// this repo. That makes it the same kind of constant as `TIER_BASE` above, and it
+// is held to account the same way: by a real core in the frozen-manifest job.
+const SLOT_MOUNT = {
+  'admin.users.detail': '/api/v1/admin/users/:id',
+}
+
+// A router mounted INSIDE a registered one with `use()` needs nothing here, and
+// that was worth finding out: swagger-autogen reads a FILE and follows its
+// `require`s, so `/rust/permissions` is generated with the right prefix from
+// `rust.router.js` alone. It is the opposite of the hole phase 6 found with the
+// slot — the registration walk cannot see a nested router, and the generator can.
+//
+// A nested router exists at all because a mount prefix is ONE path segment
+// (core's `PREFIX` is `/^\/[a-z0-9][a-z0-9-]*$/`), so `/rust/permissions` cannot
+// be declared in `module.json` and has to be a `use()` under `/rust`.
+
 /**
  * Run `register()` with a recording api and return `[{ file, prefix, what }]`.
  *
@@ -88,6 +114,15 @@ function mountedRouters() {
     }
   }
 
+  // A filled slot is a mount too. Registered through a different call, mounted
+  // on a resource core owns, and — unlike a tier router — carrying the parent's
+  // `:id` in its own base path.
+  for (const { slot, router } of api.record.extensions || []) {
+    const mount = SLOT_MOUNT[slot]
+    if (!mount) throw new Error(`swagger: filled slot "${slot}", which §2.4's table does not list`)
+    mounts.push({ router, prefix: mount, what: `slot ${slot}` })
+  }
+
   return mounts.map(({ router, prefix, what }) => {
     const file = fileOf(router)
     if (!file) {

server/sidecarClient.js

@@ -52,18 +52,21 @@ const TIMEOUT_MS = 12000
  * here, `PROTOCOL_VERSION` in the sidecar, `ProtocolVersion` in the bridge
  * plugin, and `protocol` in its `overlay.toml`.
  *
- * **2 — the read path.** The bump lands here in the same change as the emitters,
- * even though this module does not yet consume any of the new frames: the
- * sidecar refuses a client declaring a different version with a `409`, so a
- * module left on 1 would stop being able to read the server board it has been
- * reading all along. A constant that lags the deployment is not a safe default;
- * it is an outage with a version number on it.
+ * **5 — configuration from the site.** Protocol 2 was the read path, 3 the
+ * first message the WEBSITE originates (`link.confirm`), 4 the first that
+ * writes to the game's permission store; 5 is the first that writes to the game
+ * HOST'S FILESYSTEM — a plugin's settings, and a reload watched closely enough
+ * to be undone. The bump lands here in the same change as the emitters,
+ * because the sidecar refuses a client declaring a different version with a
+ * `409`: a module left on 2 would stop being able to read the server board it
+ * has been reading all along. A constant that lags the deployment is not a safe
+ * default; it is an outage with a version number on it.
  *
  * It is sent on every request as `X-RustLink-Version`, which turns a mismatched
  * deployment into a `409` naming both numbers instead of a parse failure three
  * layers further in.
  */
-const PROTOCOL_VERSION = 2
+const PROTOCOL_VERSION = 5
 
 /** What a caller gets back. Shaped once so every call site reads the same. */
 function reply(ok, status, data = null) {
@@ -189,6 +192,88 @@ const feed = (server, since, limit = 200) =>
 /** Where the sidecar's history currently ends. What a new server's cursor starts at. */
 const feedTail = (server) => request(server, '/feed')
 
+/**
+ * Redeem a one-time link code against one server (protocol 3).
+ *
+ * **The only call in this file that is not a GET**, and the only one that asks
+ * the game a question rather than reading what it already said. The sidecar
+ * forwards the code to the plugin, which holds the pending codes in memory, and
+ * hands back what it answers.
+ *
+ * **A refused code comes back `{ ok: true }`.** `link.ok` and `link.error` are
+ * both answers — the sidecar reserves its own failures for the transport (503
+ * when the game is down, 504 when it is up and silent) — and the caller has to
+ * tell "that code is wrong" from "the game never replied" to say the right thing
+ * to a player. So the discrimination happens on `data.kind`, not on `ok`.
+ *
+ * A code is spent on the plugin's FIRST lookup whether or not it turns out to be
+ * expired, so this must never be called speculatively for its answer alone.
+ */
+const confirmLink = (server, code) =>
+  request(server, '/link/confirm', { method: 'POST', body: { code } })
+
+/**
+ * What one server's loaded plugins have registered, and the groups its store
+ * holds (protocol 4).
+ *
+ * The option source behind the authoring form (D33). It is a live read through
+ * to the game rather than anything cached at the sidecar, because the answer
+ * changes when an operator loads a plugin — and the whole reason to ask is to
+ * offer names that will actually resolve. It therefore fails when the game is
+ * down, like `/status` and unlike every store-backed read.
+ */
+const permCatalogue = (server) => request(server, '/permissions/catalogue')
+
+/**
+ * Push the whole permission set this site authors for one server (protocol 4).
+ *
+ * **The second call in this file that is not a GET, and the first that changes
+ * the game.** The body is the desired set plus what the site has withdrawn; the
+ * plugin diffs it against the live store, applies the difference and answers
+ * with a report — counts, the names it could not resolve, the memberships that
+ * are waiting on a first connection, and every holder the site did not author.
+ *
+ * **A refusal comes back `{ ok: true }`**, like a refused link code: `perm.error`
+ * and `perm.report` are both answers, and the sidecar keeps its own status codes
+ * for the transport. The caller discriminates on `data.kind`.
+ */
+const permSync = (server, set) => request(server, '/permissions/sync', { method: 'POST', body: set })
+
+/**
+ * Every settings file on one game host, and every plugin loaded to reload one
+ * (protocol 5, R18).
+ *
+ * A description of the tree, never its contents: paths, sizes, which files are
+ * too large to edit, and the plugin each one probably belongs to. **Probably**
+ * is the operative word and it survives all the way to the form — a folder name
+ * is convention, not contract, and reloading the wrong plugin would report
+ * success while the edited one never re-read anything.
+ *
+ * Live, like `/status`: what is on a host's disk has no stale answer worth
+ * giving, and a cached one would be an edit an operator made over SSH that the
+ * website then overwrote.
+ */
+const configFiles = (server) => request(server, '/config/files')
+
+/** One settings file as text, with the version a write has to present back. */
+const configFile = (server, path) =>
+  request(server, `/config/file?path=${encodeURIComponent(path)}`)
+
+/**
+ * Replace a set of settings files and reload what owns them (protocol 5).
+ *
+ * **The only call in this module that writes to a filesystem**, and the only one
+ * whose reply routinely takes seconds: the plugin holds it open across the
+ * reload it is watching, and across the rollback if that reload never arrives.
+ *
+ * Like every other write on this bridge, a refusal comes back `{ ok: true }`
+ * with the answer in `data.kind` — `config.report` or `config.error`. The
+ * transport keeps its own codes, and a `504` here is the one case worth reading
+ * carefully: the plugin writes a whole set or restores a whole set, never half
+ * of either, so the state is knowable by re-reading rather than by guessing.
+ */
+const configWrite = (server, body) => request(server, '/config/write', { method: 'POST', body })
+
 module.exports = {
   TIMEOUT_MS,
   PROTOCOL_VERSION,
@@ -199,5 +284,11 @@ module.exports = {
   boards,
   feed,
   feedTail,
+  confirmLink,
+  permCatalogue,
+  permSync,
+  configFiles,
+  configFile,
+  configWrite,
   joinUrl,
 }

server/swagger/doc.js

@@ -100,6 +100,332 @@ module.exports = {
           stale: { type: 'boolean', example: false },
         },
       },
+      RustLink: {
+        type: 'object',
+        description: 'One Steam account linked to a website user. Never carries a code.',
+        properties: {
+          steamId: { type: 'string', example: '76561198000000000' },
+          name: {
+            type: 'string',
+            nullable: true,
+            description: 'What the player was called in game when they linked. A display name only — a Rust name changes on a whim and nothing identifies anybody by it.',
+            example: 'Wanderer',
+          },
+          serverId: {
+            type: 'string',
+            nullable: true,
+            description: 'Which server minted the code. Not part of the identity — a link is fleet-wide — but it is where a support conversation starts.',
+            example: 'main',
+          },
+          linkedAt: { type: 'string', format: 'date-time' },
+        },
+      },
+      RustLinkList: {
+        type: 'object',
+        description: 'The Steam accounts one website user holds (GET /player/rust/links).',
+        properties: {
+          links: { type: 'array', items: { $ref: '#/components/schemas/RustLink' } },
+        },
+      },
+      RustLinkRequest: {
+        type: 'object',
+        required: ['code'],
+        properties: {
+          code: {
+            type: 'string',
+            description: 'The six-character code /link handed the player in game. Good for five minutes, and it works once.',
+            example: 'K7M2PQ',
+          },
+        },
+      },
+      RustLinkResult: {
+        type: 'object',
+        description: 'The result of redeeming a code.',
+        properties: {
+          linked: { type: 'boolean', example: true },
+          link: { $ref: '#/components/schemas/RustLink' },
+          already: {
+            type: 'boolean',
+            description: 'True when this Steam id was already linked to the caller — a second press of the button, not an error.',
+            example: false,
+          },
+        },
+      },
+      RustAdminLinkList: {
+        type: 'object',
+        description: 'One user’s Rust identity, for the admin.users.detail panel (GET /admin/users/{id}/rust/links).',
+        properties: {
+          links: {
+            type: 'array',
+            items: {
+              type: 'object',
+              properties: {
+                steamId: { type: 'string', example: '76561198000000000' },
+                name: {
+                  type: 'string',
+                  nullable: true,
+                  description: 'What the game last saw this player called, falling back to the name recorded at link time.',
+                  example: 'Wanderer',
+                },
+                linkedName: { type: 'string', nullable: true, example: 'Wanderer' },
+                serverId: { type: 'string', nullable: true, example: 'main' },
+                linkedAt: { type: 'string', format: 'date-time' },
+                firstSeen: { type: 'string', format: 'date-time', nullable: true },
+                lastSeen: { type: 'string', format: 'date-time', nullable: true },
+                servers: {
+                  type: 'array',
+                  description: 'All-time totals per server, summed across every wipe.',
+                  items: {
+                    type: 'object',
+                    properties: {
+                      serverId: { type: 'string', example: 'main' },
+                      serverName: { type: 'string', example: 'Main · Vanilla' },
+                      kills: { type: 'integer', example: 41 },
+                      deaths: { type: 'integer', example: 37 },
+                      npcKills: { type: 'integer', example: 120 },
+                      structures: { type: 'integer', example: 64 },
+                      playtimeSec: { type: 'integer', example: 43200 },
+                      wipes: { type: 'integer', example: 2 },
+                      lastSeen: { type: 'string', format: 'date-time', nullable: true },
+                    },
+                  },
+                },
+              },
+            },
+          },
+        },
+      },
+      RustPermissionModel: {
+        type: 'object',
+        description:
+          'The whole permission model (GET /admin/rust/permissions): what the site authors, what each game reported back, and the names a grant may use.',
+        properties: {
+          groups: {
+            type: 'array',
+            description: 'Groups the site authors, mirrored into each in-scope game as a real group.',
+            items: {
+              type: 'object',
+              properties: {
+                name: { type: 'string', example: 'vip' },
+                title: { type: 'string', example: 'VIP' },
+                rank: { type: 'integer', example: 10 },
+                scope: {
+                  type: 'string',
+                  description: 'A server id, or `*` for every server.',
+                  example: '*',
+                },
+                permissions: { type: 'array', items: { type: 'string', example: 'kits.vip' } },
+                members: {
+                  type: 'array',
+                  items: {
+                    type: 'object',
+                    properties: {
+                      userId: { type: 'integer', example: 42 },
+                      username: { type: 'string', example: 'wanderer' },
+                      steamId: {
+                        type: 'string',
+                        nullable: true,
+                        description: 'Null when this account has linked no Steam id, in which case the membership reaches nobody yet.',
+                        example: '76561198000000000',
+                      },
+                      playerName: { type: 'string', nullable: true, example: 'Wanderer' },
+                    },
+                  },
+                },
+              },
+            },
+          },
+          grants: {
+            type: 'array',
+            description: 'Permissions held by one person without a group. Unlike membership, a direct grant reaches a player who has never connected.',
+            items: {
+              type: 'object',
+              properties: {
+                id: { type: 'integer', example: 7 },
+                userId: { type: 'integer', example: 42 },
+                username: { type: 'string', example: 'wanderer' },
+                permission: { type: 'string', example: 'kits.gold' },
+                scope: { type: 'string', example: 'main' },
+                source: {
+                  type: 'string',
+                  description: 'What authored it — `admin`, `adopted`, or a later phase’s own writer.',
+                  example: 'admin',
+                },
+                note: { type: 'string', nullable: true, example: null },
+                grantedAt: { type: 'string', format: 'date-time' },
+                accounts: {
+                  type: 'array',
+                  description: 'The Steam accounts this grant reaches. Empty means it reaches nobody yet.',
+                  items: {
+                    type: 'object',
+                    properties: {
+                      steamId: { type: 'string', example: '76561198000000000' },
+                      name: { type: 'string', nullable: true, example: 'Wanderer' },
+                    },
+                  },
+                },
+              },
+            },
+          },
+          servers: {
+            type: 'array',
+            description: 'The state of the mirror, per configured server.',
+            items: { $ref: '#/components/schemas/RustPermissionSyncState' },
+          },
+          drift: {
+            type: 'array',
+            description: 'What a game holds that the site did not author. Reported, never undone.',
+            items: {
+              type: 'object',
+              properties: {
+                id: { type: 'integer', example: 3 },
+                serverId: { type: 'string', example: 'main' },
+                kind: {
+                  type: 'string',
+                  description: 'One of `grant`, `member`, `group-permission`.',
+                  example: 'grant',
+                },
+                subject: {
+                  type: 'string',
+                  description: 'A Steam id, or a group name.',
+                  example: '76561198000000000',
+                },
+                object: {
+                  type: 'string',
+                  description: 'A permission name, or a group name.',
+                  example: 'kits.admin',
+                },
+                username: {
+                  type: 'string',
+                  nullable: true,
+                  description: 'The website account holding that Steam id, when there is one. Without it the drift cannot be adopted, only revoked.',
+                  example: 'wanderer',
+                },
+                firstSeen: { type: 'string', format: 'date-time' },
+              },
+            },
+          },
+          catalogue: {
+            type: 'array',
+            items: { $ref: '#/components/schemas/RustPermissionCatalogueEntry' },
+          },
+        },
+      },
+      RustPermissionSyncState: {
+        type: 'object',
+        description: 'Whether one server’s store matches what the site authors, and what its last report said.',
+        properties: {
+          serverId: { type: 'string', example: 'main' },
+          state: {
+            type: 'string',
+            description: 'One of `pending`, `ok`, `failed`.',
+            example: 'ok',
+          },
+          inSync: {
+            type: 'boolean',
+            description: 'True when the last successful push carried the set the site currently authors.',
+            example: true,
+          },
+          dirty: { type: 'boolean', example: false },
+          lastAttemptAt: { type: 'string', format: 'date-time', nullable: true },
+          lastOkAt: { type: 'string', format: 'date-time', nullable: true },
+          error: {
+            type: 'string',
+            nullable: true,
+            description: 'Why the last attempt failed — a transport word (`timeout`, `no-token`, `protocol-mismatch`) or the game’s own refusal.',
+            example: null,
+          },
+          report: {
+            type: 'object',
+            nullable: true,
+            description: 'The plugin’s report from the last successful sync.',
+            properties: {
+              applied: {
+                type: 'object',
+                properties: {
+                  grants: { type: 'integer', example: 2 },
+                  revokes: { type: 'integer', example: 0 },
+                  groupsCreated: { type: 'integer', example: 1 },
+                  members: { type: 'integer', example: 3 },
+                },
+              },
+              alreadyCorrect: { type: 'integer', example: 14 },
+              unresolved: {
+                type: 'array',
+                description: 'Permission names no loaded plugin on that server has registered. A grant naming one lands nowhere and is not recorded as pushed.',
+                items: { type: 'string', example: 'kits.gold' },
+              },
+              pending: {
+                type: 'array',
+                description: 'Memberships waiting on a first connection: the store has no user record to put in a group yet.',
+                items: { type: 'string', example: '76561198000000000:vip' },
+              },
+            },
+          },
+        },
+      },
+      RustPermissionCatalogue: {
+        type: 'object',
+        description: 'Every permission name the configured servers have registered (GET /admin/rust/permissions/catalogue).',
+        properties: {
+          permissions: {
+            type: 'array',
+            items: { $ref: '#/components/schemas/RustPermissionCatalogueEntry' },
+          },
+        },
+      },
+      RustPermissionCatalogueEntry: {
+        type: 'object',
+        description: 'One registered permission name, and which servers know it.',
+        properties: {
+          permission: { type: 'string', example: 'kits.vip' },
+          servers: { type: 'array', items: { type: 'string', example: 'main' } },
+        },
+      },
+      RustPermissionSyncResult: {
+        type: 'object',
+        description: 'What a forced sync produced (POST /admin/rust/permissions/sync).',
+        properties: {
+          servers: { type: 'array', items: { $ref: '#/components/schemas/RustPermissionSyncState' } },
+          drift: { type: 'array', items: { type: 'object' } },
+        },
+      },
+      RustUserPermissions: {
+        type: 'object',
+        description: 'One person’s Rust privileges, for the admin.users.detail panel (GET /admin/users/{id}/rust/permissions).',
+        properties: {
+          groups: {
+            type: 'array',
+            items: {
+              type: 'object',
+              properties: {
+                name: { type: 'string', example: 'vip' },
+                title: { type: 'string', example: 'VIP' },
+                scope: { type: 'string', example: '*' },
+                permissions: { type: 'array', items: { type: 'string', example: 'kits.vip' } },
+              },
+            },
+          },
+          grants: {
+            type: 'array',
+            items: {
+              type: 'object',
+              properties: {
+                id: { type: 'integer', example: 7 },
+                permission: { type: 'string', example: 'kits.gold' },
+                scope: { type: 'string', example: 'main' },
+                source: { type: 'string', example: 'admin' },
+                grantedAt: { type: 'string', format: 'date-time' },
+              },
+            },
+          },
+          reaches: {
+            type: 'array',
+            description: 'The Steam accounts these privileges reach. Empty means this person has linked nothing and holds them on paper only.',
+            items: { type: 'string', example: '76561198000000000' },
+          },
+        },
+      },
       RustSidecarProbe: {
         type: 'object',
         description: 'What a sidecar said when probed (POST /admin/rust/servers/{id}/test).',

server/test/catalogue.test.js

@@ -28,7 +28,7 @@ test('an unknown kind is not public — the default is deny', () => {
   assert.equal(catalogue.isPublic('player.location'), false)
 })
 
-test('nothing carrying an IP address or a report is public', () => {
+test('nothing carrying an IP address, a report or an identity is public', () => {
   for (const kind of [
     'player.login.attempt',
     'player.approved',
@@ -36,6 +36,11 @@ test('nothing carrying an IP address or a report is public', () => {
     'player.unbanned',
     'player.reported',
     'entity.destroyed',
+    // Protocol 3. A link request on a public killfeed would tell everyone which
+    // Steam id is about to become a named website account, and an unlink would
+    // say when somebody stopped being one.
+    'account.link.requested',
+    'account.unlinked',
   ]) {
     assert.equal(catalogue.isPublic(kind), false, `${kind} must not be public`)
     assert.ok(catalogue.STAFF_KINDS.includes(kind), `${kind} must be classified, not merely absent`)
@@ -82,13 +87,13 @@ test('every kind is classified exactly once', () => {
   assert.equal(seen.size, catalogue.PUBLIC_KINDS.length + catalogue.STAFF_KINDS.length)
 })
 
-test('the classification covers exactly the kinds protocol 2 defines', () => {
+test('the classification covers exactly the kinds protocol 4 defines', () => {
   // The spec lives in another repository, so the list is restated here rather
   // than parsed — and restating it is the point: adding a kind to the protocol
   // without deciding who may see it has to fail somewhere, and this is where.
   //
   // Sourced from docs/rust-link/PROTOCOL.md §8.4.
-  const PROTOCOL_2 = [
+  const PROTOCOL_4 = [
     'player.connected',
     'player.disconnected',
     'player.respawned',
@@ -104,7 +109,10 @@ test('the classification covers exactly the kinds protocol 2 defines', () => {
     'server.wipe',
     'server.initialized',
     'server.shutdown',
+    'account.link.requested',
+    'account.unlinked',
+    'perm.drift',
   ]
 
-  assert.deepEqual([...catalogue.ALL_KINDS].sort(), [...PROTOCOL_2].sort())
+  assert.deepEqual([...catalogue.ALL_KINDS].sort(), [...PROTOCOL_4].sort())
 })

server/test/config.test.js

@@ -0,0 +1,437 @@
+// ── Configuration from the site, above the editor ─────────────────────────
+//
+// `configEdit.test.js` covers the bytes. This covers the decisions made around
+// them, and each of these is a way the feature could look fine and be wrong:
+//
+//   • a save that never re-reads the host writes a browser's stale copy over
+//     somebody else's edit;
+//   • the raw tier is a whole document, so a locked key can change without
+//     anything resembling an edit to a field (D38);
+//   • a rollback is a round trip that WORKED, carrying bad news, and reporting
+//     it as a failure throws away the only diagnosis there is;
+//   • a refusal that is never recorded leaves the operator asking why a setting
+//     is not what they set, with nothing to read.
+
+const test = require('node:test')
+const assert = require('node:assert')
+
+const { fakeCtx } = require('./_fakes')
+
+function withCore(overrides = {}) {
+  const queries = []
+
+  require('../core')._reset()
+  require('../core').init(
+    fakeCtx({
+      db: {
+        query: (sql, params) => {
+          queries.push({ sql: sql.trim().replace(/\s+/g, ' '), params })
+          const verb = sql.trim().split(/\s+/)[0].toUpperCase()
+          if (verb === 'SELECT') return Promise.resolve([])
+          return Promise.resolve({ affectedRows: 1, insertId: 1 })
+        },
+        pool: {},
+      },
+      ...overrides,
+    }),
+  )
+
+  return queries
+}
+
+/** A response double that records what a controller decided. */
+function fakeRes() {
+  const res = { statusCode: 200, body: null }
+  res.status = (code) => {
+    res.statusCode = code
+    return res
+  }
+  res.json = (body) => {
+    res.body = body
+    return res
+  }
+  return res
+}
+
+const FILE = `{
+  "Gather": { "Wood": 1.0 },
+  "Enabled": true
+}`
+
+const OWN = `{
+  "Host": "127.0.0.1",
+  "Port": 7799,
+  "QueueCap": 5000,
+  "ServerId": "main"
+}`
+
+/** Stubs the four calls this controller can make, and records them. */
+function stubSidecar({ file = FILE, self = 'RunicGateway', write } = {}) {
+  const sidecar = require('../sidecarClient')
+  const calls = []
+
+  sidecar.configFile = async (server, asked) => {
+    calls.push(['read', asked])
+    const text = asked === 'RunicGateway.json' ? OWN : file
+
+    return {
+      ok: true,
+      status: 'ok',
+      data: { kind: 'config.file', path: asked, text, version: `v-${asked}`, bytes: text.length },
+    }
+  }
+
+  sidecar.configFiles = async () => {
+    calls.push(['list'])
+    return {
+      ok: true,
+      status: 'ok',
+      data: {
+        kind: 'config.catalogue',
+        root: '/home/container/oxide/config',
+        self,
+        files: [
+          { path: 'ZoneManager.json', bytes: 40, editable: true, plugin: 'ZoneManager' },
+          { path: 'RunicGateway.json', bytes: 90, editable: true, plugin: 'RunicGateway' },
+          { path: 'Huge.json', bytes: 9e6, editable: false, reason: 'larger than this bridge will carry', plugin: 'Huge' },
+        ],
+        plugins: [{ name: 'ZoneManager', title: 'Zone Manager', version: '3.1.14' }],
+        truncated: false,
+      },
+    }
+  }
+
+  sidecar.configWrite = async (server, body) => {
+    calls.push(['write', body])
+    return write || { ok: true, status: 'ok', data: { kind: 'config.report', ok: true, reloaded: true, files: [{ path: body.files[0].path, version: 'v-after' }] } }
+  }
+
+  return calls
+}
+
+/** The controller's own server lookup, satisfied without a database. */
+function stubServer(row = { id: 'main', name: 'Main', sidecarBaseUrl: 'http://x', sidecarTokenEnc: null, protocol: 5 }) {
+  const serversDb = require('../model/servers/servers.db')
+  const servers = require('../model/servers/servers.model')
+  serversDb.getServer = async () => row
+  servers.withToken = () => (row ? { id: row.id, baseUrl: row.sidecarBaseUrl, token: 't' } : null)
+}
+
+function controller() {
+  return require('../router/admin/config.controller')
+}
+
+test('the catalogue is grouped by plugin, and an unloaded one is marked rather than dropped', async () => {
+  withCore()
+  stubSidecar()
+  stubServer()
+
+  const res = fakeRes()
+  await controller().listFiles({ params: { serverId: 'main' }, query: {} }, res)
+
+  const zone = res.body.plugins.find((p) => p.plugin === 'ZoneManager')
+  const bridge = res.body.plugins.find((p) => p.plugin === 'RunicGateway')
+  const huge = res.body.plugins.find((p) => p.plugin === 'Huge')
+
+  assert.equal(zone.loaded, true)
+  assert.equal(zone.version, '3.1.14')
+
+  // Not loaded, still listed. A config that vanished from the page would read
+  // as "the bridge cannot see it", which is a much more alarming problem than
+  // the true one.
+  assert.equal(huge.loaded, false)
+  assert.equal(huge.files[0].editable, false)
+  assert.ok(huge.files[0].reason)
+
+  // The bridge's own config is named as such, because it is the one plugin that
+  // cannot be reloaded from here.
+  assert.equal(bridge.isBridge, true)
+  assert.equal(res.body.root, '/home/container/oxide/config')
+})
+
+test('a save re-reads the host and refuses a stale version with the current file', async () => {
+  withCore()
+  stubSidecar()
+  stubServer()
+
+  const res = fakeRes()
+  await controller().writeFile(
+    {
+      params: { serverId: 'main' },
+      body: { path: 'ZoneManager.json', version: 'v-stale', edits: [{ pointer: ['Enabled'], value: false }] },
+    },
+    res,
+  )
+
+  assert.equal(res.statusCode, 409)
+  // The current file comes back, so a person can merge their change rather than
+  // retype it from memory.
+  assert.equal(res.body.current.version, 'v-ZoneManager.json')
+  assert.match(res.body.message, /changed on the server/)
+})
+
+test('a form edit is spliced into what is on disk NOW, and sent as whole text', async () => {
+  withCore()
+  const calls = stubSidecar()
+  stubServer()
+
+  const res = fakeRes()
+  await controller().writeFile(
+    {
+      params: { serverId: 'main' },
+      body: {
+        path: 'ZoneManager.json',
+        version: 'v-ZoneManager.json',
+        reload: 'ZoneManager',
+        edits: [{ pointer: ['Enabled'], value: false }],
+      },
+    },
+    res,
+  )
+
+  const [, body] = calls.find((c) => c[0] === 'write')
+
+  assert.equal(body.files.length, 1)
+  assert.equal(body.reload, 'ZoneManager')
+  assert.equal(body.files[0].version, 'v-ZoneManager.json')
+  assert.match(body.files[0].text, /"Enabled": false/)
+  // The untouched float, which is the entire reason this path exists.
+  assert.match(body.files[0].text, /"Wood": 1\.0/)
+
+  assert.equal(res.statusCode, 200)
+  assert.equal(res.body.changed, true)
+  assert.equal(res.body.report.reloaded, true)
+})
+
+test('a save that changes nothing does not reach the game at all', async () => {
+  withCore()
+  const calls = stubSidecar()
+  stubServer()
+
+  const res = fakeRes()
+  await controller().writeFile(
+    {
+      params: { serverId: 'main' },
+      body: {
+        path: 'ZoneManager.json',
+        version: 'v-ZoneManager.json',
+        edits: [{ pointer: ['Enabled'], value: true }],
+      },
+    },
+    res,
+  )
+
+  assert.equal(res.body.changed, false)
+  // A write would have spent a reload, and a reload is the one part of this
+  // feature that can take a plugin down.
+  assert.equal(calls.some((c) => c[0] === 'write'), false)
+})
+
+test('the raw tier cannot change a locked key, even though it sends a whole document (D38)', async () => {
+  withCore()
+  const calls = stubSidecar()
+  stubServer()
+
+  const res = fakeRes()
+  await controller().writeFile(
+    {
+      params: { serverId: 'main' },
+      body: {
+        path: 'RunicGateway.json',
+        version: 'v-RunicGateway.json',
+        text: OWN.replace('7799', '9999'),
+      },
+    },
+    res,
+  )
+
+  assert.equal(res.statusCode, 400)
+  assert.match(res.body.message, /Port/)
+  assert.equal(calls.some((c) => c[0] === 'write'), false)
+
+  // And the rest of our own config is still editable, which is the half of D38
+  // that is easy to lose.
+  const ok = fakeRes()
+  await controller().writeFile(
+    {
+      params: { serverId: 'main' },
+      body: {
+        path: 'RunicGateway.json',
+        version: 'v-RunicGateway.json',
+        text: OWN.replace('5000', '9000'),
+      },
+    },
+    ok,
+  )
+
+  assert.equal(ok.statusCode, 200)
+  assert.equal(ok.body.changed, true)
+})
+
+test('a rollback is a 200 carrying bad news, and the log line survives to the admin', async () => {
+  const queries = withCore()
+  stubSidecar({
+    write: {
+      ok: true,
+      status: 'ok',
+      data: {
+        kind: 'config.report',
+        ok: false,
+        reloaded: false,
+        rolledBack: true,
+        reason: "'ZoneManager' did not reload within 4s",
+        log: 'Error while compiling ZoneManager: expected , at line 14',
+        files: [{ path: 'ZoneManager.json', version: 'v-restored' }],
+      },
+    },
+  })
+  stubServer()
+
+  const res = fakeRes()
+  await controller().writeFile(
+    {
+      params: { serverId: 'main' },
+      body: {
+        path: 'ZoneManager.json',
+        version: 'v-ZoneManager.json',
+        reload: 'ZoneManager',
+        edits: [{ pointer: ['Enabled'], value: false }],
+      },
+    },
+    res,
+  )
+
+  assert.equal(res.statusCode, 200)
+  assert.equal(res.body.report.rolledBack, true)
+  assert.match(res.body.report.log, /line 14/)
+
+  const audit = queries.find((q) => q.sql.includes('INSERT INTO rust_config_writes'))
+  assert.ok(audit, 'a rollback must be recorded')
+  assert.ok(audit.params.includes('rolled-back'))
+})
+
+test('a refusal from the game is recorded too, with its own status', async () => {
+  const queries = withCore()
+  stubSidecar({
+    write: { ok: true, status: 'ok', data: { kind: 'config.error', reason: 'reload-self' } },
+  })
+  stubServer()
+
+  const res = fakeRes()
+  await controller().writeFile(
+    {
+      params: { serverId: 'main' },
+      body: {
+        path: 'ZoneManager.json',
+        version: 'v-ZoneManager.json',
+        reload: 'RunicGateway',
+        edits: [{ pointer: ['Enabled'], value: false }],
+      },
+    },
+    res,
+  )
+
+  assert.equal(res.statusCode, 400)
+  assert.match(res.body.message, /cannot be reloaded from the website/)
+
+  const audit = queries.find((q) => q.sql.includes('INSERT INTO rust_config_writes'))
+  assert.ok(audit && audit.params.includes('refused'), 'a refusal is part of the audit trail')
+})
+
+test('a server that cannot be reached answers 503 with the reason, and records the attempt', async () => {
+  const queries = withCore()
+  stubSidecar({ write: { ok: false, status: 'http-503', data: null } })
+  stubServer()
+
+  const res = fakeRes()
+  await controller().writeFile(
+    {
+      params: { serverId: 'main' },
+      body: {
+        path: 'ZoneManager.json',
+        version: 'v-ZoneManager.json',
+        edits: [{ pointer: ['Enabled'], value: false }],
+      },
+    },
+    res,
+  )
+
+  assert.equal(res.statusCode, 503)
+  assert.match(res.body.message, /not connected/)
+  assert.ok(queries.find((q) => q.sql.includes('INSERT INTO rust_config_writes')))
+})
+
+test('a path that could not have come from the host is refused before any round trip', async () => {
+  withCore()
+  const calls = stubSidecar()
+  stubServer()
+
+  for (const path of ['../oxide/data/oxide.users.data', '/etc/passwd', 'C:/x.json', 'notjson.txt', '']) {
+    const res = fakeRes()
+    await controller().readFile({ params: { serverId: 'main' }, query: { path } }, res)
+    assert.equal(res.statusCode, 400, `${path} should be refused`)
+  }
+
+  assert.equal(calls.length, 0, 'nothing malformed should cost a round trip')
+
+  // And the shapes a host really does list.
+  for (const path of ['Kits.json', 'Kits/kits.json', 'My Mod/sub dir/file.json']) {
+    assert.equal(require('../model/config/config.model').isPlausiblePath(path), true, path)
+  }
+})
+
+test('the audit trail records which fields changed, and never a credential', async () => {
+  const queries = withCore()
+  stubSidecar({ file: '{\n  "Discord Webhook": "https://hooks/1",\n  "Enabled": true\n}' })
+  stubServer()
+
+  await controller().writeFile(
+    {
+      params: { serverId: 'main' },
+      user: { id: 7 },
+      body: {
+        path: 'ZoneManager.json',
+        version: 'v-ZoneManager.json',
+        edits: [{ pointer: ['Discord Webhook'], value: 'https://hooks/2' }],
+      },
+    },
+    fakeRes(),
+  )
+
+  const audit = queries.find((q) => q.sql.includes('INSERT INTO rust_config_writes'))
+  const changes = audit.params.find((p) => typeof p === 'string' && p.startsWith('['))
+
+  assert.match(changes, /Discord Webhook/)
+  assert.ok(!changes.includes('hooks/1'), 'the old credential must not be recorded')
+  assert.ok(!changes.includes('hooks/2'), 'the new credential must not be recorded')
+  assert.ok(audit.params.includes(7), 'the person who did it is recorded')
+})
+
+test('a file that is already broken on disk still opens, in the tier that can fix it', () => {
+  const model = require('../model/config/config.model')
+  const shaped = model.shapeFile(
+    { path: 'Broken.json', text: '{ "a": }', version: 'v1', bytes: 8 },
+    { self: 'RunicGateway' },
+  )
+
+  assert.equal(shaped.fields, null)
+  assert.ok(shaped.parseError, 'the reason it cannot be drawn is part of the answer')
+  assert.equal(shaped.text, '{ "a": }')
+})
+
+test('the bridge’s own file is recognised by the plugin’s name, not by a filename we matched', () => {
+  const model = require('../model/config/config.model')
+
+  assert.equal(model.isBridgeConfig('RunicGateway.json', 'RunicGateway'), true)
+  assert.equal(model.isBridgeConfig('RunicGateway/extra.json', 'RunicGateway'), true)
+  assert.equal(model.isBridgeConfig('ZoneManager.json', 'RunicGateway'), false)
+
+  // Renamed on the host: the lock follows the plugin, which is the only thing
+  // that knows what it is called.
+  assert.equal(model.isBridgeConfig('Bridge.json', 'Bridge'), true)
+  assert.deepEqual(model.lockedKeysFor('Bridge.json', 'Bridge'), model.LOCKED_KEYS)
+
+  // And a host that said nothing about itself locks nothing, rather than
+  // locking everything or guessing.
+  assert.deepEqual(model.lockedKeysFor('RunicGateway.json', null), [])
+})

server/test/configEdit.test.js

@@ -0,0 +1,236 @@
+// ── The editor that must not touch what it was not asked to ───────────────
+//
+// `configEdit.js` exists for one reason: a config file goes back to the game
+// host byte-identical except where an admin deliberately changed something. So
+// the suite is mostly about what does NOT change, and the first test is the one
+// the whole design is for.
+//
+// It is worth being concrete about the failure being prevented. `Rate: 1.0` in
+// an untouched field, read through `JSON.parse` and written back through
+// `JSON.stringify`, becomes `Rate: 1`. Newtonsoft may coerce that into a
+// `float` or may throw; if it throws, the plugin does not come back from its
+// reload — and R6/R17 make four plugins required, so "ZoneManager is down" is
+// also "event participation is down".
+
+const test = require('node:test')
+const assert = require('node:assert')
+
+const configEdit = require('../configEdit')
+
+/** A config with every shape that has ever caused trouble. */
+const SAMPLE = `{
+  "Gather": {
+    "Wood": 1.0,
+    "Stone": 2.50,
+    "Sulfur": 3,
+    "Scale": 1e3
+  },
+  "Enabled": true,
+  "Message": "Welcome, {name}",
+  "Discord Webhook": "https://discord.com/api/webhooks/1/abc",
+  "Zones": ["a", "b"],
+  "Nothing": null,
+  "Empty": []
+}`
+
+test('an untouched float keeps its literal — the whole point of this file', () => {
+  const { text, changes } = configEdit.applyEdits(SAMPLE, [{ pointer: ['Enabled'], value: false }])
+
+  assert.equal(changes.length, 1)
+  assert.match(text, /"Wood": 1\.0/)
+  assert.match(text, /"Stone": 2\.50/)
+  assert.match(text, /"Scale": 1e3/)
+  assert.match(text, /"Enabled": false/)
+
+  // And the proof that the naive implementation would have failed this: the same
+  // document through parse/stringify loses all three.
+  const naive = JSON.stringify(JSON.parse(SAMPLE))
+  assert.match(naive, /"Wood":1,/)
+  assert.doesNotMatch(naive, /2\.50/)
+  assert.doesNotMatch(naive, /1e3/)
+})
+
+test('a number is written as the literal an admin typed, not as a Number', () => {
+  const { text } = configEdit.applyEdits(SAMPLE, [{ pointer: ['Gather', 'Wood'], raw: '2.0' }])
+  assert.match(text, /"Wood": 2\.0/)
+
+  // The same edit through a JavaScript number would have produced `2`, which is
+  // a different C# type at the far end.
+  assert.equal(String(2.0), '2')
+})
+
+test('everything else in the document is byte-identical', () => {
+  const { text } = configEdit.applyEdits(SAMPLE, [{ pointer: ['Gather', 'Sulfur'], raw: '4' }])
+
+  const before = SAMPLE.split('\n')
+  const after = text.split('\n')
+
+  assert.equal(before.length, after.length)
+  before.forEach((line, i) => {
+    if (line.includes('"Sulfur"')) return
+    assert.equal(after[i], line, `line ${i + 1} changed and should not have`)
+  })
+})
+
+test('a literal that is not a JSON number is refused', () => {
+  for (const raw of ['0x10', '', ' ', '1.', '.5', '01', 'NaN', 'Infinity', '1,0', '5; rm -rf /']) {
+    const { error, text } = configEdit.applyEdits(SAMPLE, [{ pointer: ['Gather', 'Sulfur'], raw }])
+    assert.ok(error, `'${raw}' should be refused`)
+    assert.equal(text, undefined)
+  }
+
+  // And the ones that must keep working, because preserving them is the point.
+  for (const raw of ['1.0', '-2', '1e3', '1E-3', '0', '0.5', '123456789012345678']) {
+    const { error } = configEdit.applyEdits(SAMPLE, [{ pointer: ['Gather', 'Sulfur'], raw }])
+    assert.equal(error, undefined, `'${raw}' should be accepted`)
+  }
+})
+
+test('the form cannot change a value KIND — that is the raw tier', () => {
+  assert.match(
+    configEdit.applyEdits(SAMPLE, [{ pointer: ['Enabled'], value: 'yes' }]).error,
+    /true or false/,
+  )
+  assert.match(configEdit.applyEdits(SAMPLE, [{ pointer: ['Message'], value: 7 }]).error, /expected text/)
+  assert.match(configEdit.applyEdits(SAMPLE, [{ pointer: ['Zones'], value: 'a' }]).error, /raw tier/)
+  assert.match(configEdit.applyEdits(SAMPLE, [{ pointer: ['Nothing'], value: 1 }]).error, /raw tier/)
+})
+
+test('a string is escaped on the way in', () => {
+  const { text } = configEdit.applyEdits(SAMPLE, [
+    { pointer: ['Message'], value: 'He said "hi"\nand left\\' },
+  ])
+
+  assert.match(text, /"Message": "He said \\"hi\\"\\nand left\\\\"/)
+  // Still JSON, and still the same string coming back out.
+  assert.equal(JSON.parse(text).Message, 'He said "hi"\nand left\\')
+})
+
+test('a pointer that is not in the file is refused rather than created', () => {
+  assert.match(configEdit.applyEdits(SAMPLE, [{ pointer: ['Nope'], value: true }]).error, /not in this file/)
+  assert.match(
+    configEdit.applyEdits(SAMPLE, [{ pointer: ['Gather', 'Wood', 'Deeper'], raw: '1' }]).error,
+    /not in this file/,
+  )
+})
+
+test('an edit set that changes nothing writes nothing', () => {
+  const { text, changes } = configEdit.applyEdits(SAMPLE, [{ pointer: ['Enabled'], value: true }])
+
+  assert.equal(text, SAMPLE)
+  assert.deepEqual(changes, [])
+})
+
+test('two edits to the same field in one save are refused', () => {
+  const { error } = configEdit.applyEdits(SAMPLE, [
+    { pointer: ['Gather', 'Wood'], raw: '1.0' },
+    { pointer: ['Gather', 'Wood'], raw: '2.0' },
+  ])
+
+  assert.match(error, /edited twice/)
+})
+
+test('several edits land together, and later offsets are not shifted by earlier ones', () => {
+  const { text, changes } = configEdit.applyEdits(SAMPLE, [
+    { pointer: ['Gather', 'Wood'], raw: '10.0' },
+    { pointer: ['Message'], value: 'much longer than it was before' },
+    { pointer: ['Zones', 1], value: 'bb' },
+  ])
+
+  assert.equal(changes.length, 3)
+  const parsed = JSON.parse(text)
+  assert.equal(parsed.Gather.Wood, 10)
+  assert.equal(parsed.Message, 'much longer than it was before')
+  assert.deepEqual(parsed.Zones, ['a', 'bb'])
+  assert.match(text, /"Wood": 10\.0/)
+})
+
+test('a locked key cannot be edited, and the refusal names it (D38)', () => {
+  const own = '{\n  "Host": "127.0.0.1",\n  "Port": 7799,\n  "QueueCap": 5000\n}'
+  const locked = ['Host', 'Port', 'ServerId']
+
+  assert.match(configEdit.applyEdits(own, [{ pointer: ['Port'], raw: '1' }], { locked }).error, /Port/)
+  assert.match(
+    configEdit.applyEdits(own, [{ pointer: ['Host'], value: '10.0.0.5' }], { locked }).error,
+    /cannot be edited/,
+  )
+
+  // Everything else in the bridge's own config stays editable, which is the
+  // half of D38 that is easy to lose.
+  const { text } = configEdit.applyEdits(own, [{ pointer: ['QueueCap'], raw: '9000' }], { locked })
+  assert.match(text, /"QueueCap": 9000/)
+})
+
+test('a secret is flagged by WORD, not by substring', () => {
+  for (const key of ['ApiKey', 'Discord Webhook', 'steam_api_key', 'Token', 'Password', 'authToken']) {
+    assert.equal(configEdit.isSecretKey(key), true, `${key} should be a secret`)
+  }
+
+  // The false positives a substring match would produce, and they matter: a
+  // form that masks a third of every config teaches an operator to ignore the
+  // mask, which is worse than not masking.
+  for (const key of ['Monkey', 'Keybind', 'Passive Mode', 'Authority', 'Keycards Allowed']) {
+    assert.equal(configEdit.isSecretKey(key), false, `${key} should not be a secret`)
+  }
+
+  // A genuinely ambiguous one, resolved toward masking on purpose: a field
+  // called `Keys` is a credential often enough, and the cost of being wrong is
+  // a field an admin has to click to read rather than a credential on a page.
+  assert.equal(configEdit.isSecretKey('Keys'), true)
+})
+
+test("a secret's values never reach the audit trail, though the change is recorded", () => {
+  const { changes } = configEdit.applyEdits(SAMPLE, [
+    { pointer: ['Discord Webhook'], value: 'https://discord.com/api/webhooks/2/def' },
+  ])
+
+  assert.equal(changes.length, 1)
+  assert.equal(changes[0].path, 'Discord Webhook')
+  assert.equal(changes[0].from, '***')
+  assert.equal(changes[0].to, '***')
+  assert.equal(changes[0].secret, true)
+})
+
+test('the form description says which fields it cannot draw, and why', () => {
+  const fields = configEdit.describe(configEdit.scan(SAMPLE))
+  const by = (path) => fields.find((f) => f.path === path)
+
+  assert.equal(by('Gather.Wood').type, 'number')
+  assert.equal(by('Gather.Wood').raw, '1.0')
+  assert.equal(by('Enabled').type, 'boolean')
+  assert.equal(by('Zones[0]').value, 'a')
+  assert.equal(by('Discord Webhook').secret, true)
+
+  // The three things a value cannot tell us anything about.
+  assert.equal(by('Nothing').advanced, true)
+  assert.equal(by('Empty').advanced, true)
+  assert.ok(by('Nothing').reason)
+  assert.ok(by('Empty').reason)
+})
+
+test('a subtree past the depth limit is advanced-only rather than half-drawn', () => {
+  const deep = '{"a":{"b":{"c":{"d":{"e":{"f":{"g":1}}}}}}}'
+  const fields = configEdit.describe(configEdit.scan(deep), { maxDepth: 3 })
+
+  const past = fields.find((f) => f.path === 'a.b.c')
+  assert.equal(past.advanced, true)
+  assert.equal(fields.some((f) => f.path.startsWith('a.b.c.')), false)
+})
+
+test('a document that is not JSON is refused with a position', () => {
+  assert.throws(() => configEdit.scan('{"a": }'), /offset/)
+  assert.throws(() => configEdit.scan('{"a": 1,}'), /expected a key/)
+  assert.throws(() => configEdit.scan('{} trailing'), /trailing content/)
+  assert.throws(() => configEdit.scan('{"a": "unterminated'), /unterminated/)
+
+  const { error } = configEdit.applyEdits('{ not json', [{ pointer: ['a'], value: true }])
+  assert.match(error, /not valid JSON/)
+})
+
+test('escapes and unicode survive a scan of a document nobody edited', () => {
+  const text = '{"a":"tab\\there","b":"\\u00e9\\u0041","c":"slash\\/"}'
+  const root = configEdit.scan(text)
+  const values = Object.fromEntries(root.children.map((c) => [c.key, c.value]))
+
+  assert.deepEqual(values, JSON.parse(text))
+})

server/test/entry.test.js

@@ -148,3 +148,20 @@ test('the module’s protocol version agrees with the manifest it ships beside',
   assert.strictEqual(typeof sidecar.PROTOCOL_VERSION, 'number')
   assert.ok(sidecar.PROTOCOL_VERSION >= 1)
 })
+
+test('an identity capability is declared, and it is the module id (phase 5, D16)', () => {
+  // Core flattens every started module's capabilities into ONE list, so a client
+  // asking "is this module installed" needs a string only this module can
+  // declare. `servers` is not that string — it names a surface, and another
+  // module could name it too — which is the whole reason this one exists beside
+  // the five surface words.
+  //
+  // It is asserted against `manifest.id` rather than against the literal "rust"
+  // so that the two cannot drift: the day the id changes, the capability a
+  // client gates a whole navigation group on has to change with it.
+  assert.ok(
+    manifest.capabilities.includes(manifest.id),
+    `module.json must declare "${manifest.id}" as a capability — it is the only string a client can` +
+      ' use to tell this module apart from any other, and the Android app gates its Rust rows on it',
+  )
+})

server/test/errorShape.test.js

@@ -0,0 +1,134 @@
+// ── The field an error has to be in ───────────────────────────────────────
+//
+// **The walk found this, and no test could have.** Core's request primitive is
+// the only thing that reads a module's failures:
+//
+//     const message = (data && data.message) || res.statusText || 'Request failed'
+//
+// So a body shaped `{ error: '…' }` is not rendered as a worse message — it is
+// not rendered at all. The player sees `Service Unavailable`, which is what the
+// link page showed for every one of the four sentences this phase exists to
+// write, until a browser said so.
+//
+// This module answered `{ error }` from its first phase and got away with it,
+// because until now every failure landed in `ErrorState` on a page whose whole
+// content was missing — where a generic sentence is honest. A form is different:
+// the sentence IS the outcome, and the four are not interchangeable.
+//
+// The rule is core's `Error` schema (`{ message }`), which every one of this
+// module's `#swagger.responses` already pointed at. So this suite is the schema
+// those annotations claim, asserted against what the handlers actually send.
+
+const test = require('node:test')
+const assert = require('node:assert')
+
+const { fakeCtx } = require('./_fakes')
+
+function withCore() {
+  require('../core')._reset()
+  require('../core').init(fakeCtx())
+}
+
+/** A response double that records the status and the body. */
+function fakeRes() {
+  const res = {
+    statusCode: 200,
+    body: null,
+    status(code) {
+      res.statusCode = code
+      return res
+    },
+    json(body) {
+      res.body = body
+      return res
+    },
+  }
+  return res
+}
+
+/** Every outcome `redeem` can answer, and the status each has to become. */
+const OUTCOMES = [
+  [{ ok: false, reason: 'taken', username: 'someone-else' }, 409, /already linked to someone-else/],
+  [{ ok: false, reason: 'unsure' }, 503, /still good/],
+  [{ ok: false, reason: 'offline' }, 503, /unreachable/],
+  [{ ok: false, reason: 'no-servers' }, 503, /No Rust servers/],
+  [{ ok: false, reason: 'rejected' }, 400, /unknown or has expired/],
+]
+
+test('every refusal reaches the player as a sentence, in the field core reads', async () => {
+  for (const [outcome, status, matches] of OUTCOMES) {
+    withCore()
+    const links = require('../model/links/links.model')
+    const controller = require('../router/player/rust.controller')
+
+    links.redeem = async () => outcome
+
+    const res = fakeRes()
+    await controller.confirmLink({ body: { code: 'K7M2PQ' }, user: { id: 4 } }, res)
+
+    assert.equal(res.statusCode, status, `${outcome.reason} must be ${status}`)
+    assert.equal(typeof res.body.message, 'string', `${outcome.reason} sent no \`message\``)
+    assert.match(res.body.message, matches)
+
+    // The half that is easy to leave behind while fixing this: a body carrying
+    // BOTH fields reads correctly in a browser and keeps the wrong shape alive
+    // for the next route that copies it.
+    assert.equal(res.body.error, undefined, `${outcome.reason} still carries an \`error\` field`)
+  }
+})
+
+test('the five outcomes are five different statuses-and-sentences, not one', async () => {
+  const seen = new Set()
+
+  for (const [outcome] of OUTCOMES) {
+    withCore()
+    const links = require('../model/links/links.model')
+    const controller = require('../router/player/rust.controller')
+
+    links.redeem = async () => outcome
+
+    const res = fakeRes()
+    await controller.confirmLink({ body: { code: 'K7M2PQ' }, user: { id: 4 } }, res)
+    seen.add(res.body.message)
+  }
+
+  // "That code is wrong" and "we could not reach the server that has it" send a
+  // player to do different things, and one of the two is a dead end when it is
+  // wrong — they run /link again on the server that is down and get the same
+  // answer for as long as it stays down.
+  assert.equal(seen.size, OUTCOMES.length, 'two outcomes tell the player the same thing')
+})
+
+test('no handler in this module answers in a field core cannot read', async () => {
+  // The other controllers, the same way — driven rather than grepped, because the
+  // shape that matters is what a handler SENDS. Each is given a model that throws,
+  // which is every controller's own 500 path and the one branch they all have.
+  withCore()
+
+  const cases = [
+    ['public', '../router/public/rust.controller', 'listServers', { params: {}, query: {} }],
+    ['player', '../router/player/rust.controller', 'listServers', { params: {}, query: {}, user: { id: 4 } }],
+    ['player', '../router/player/rust.controller', 'listLinks', { params: {}, user: { id: 4 } }],
+    ['admin', '../router/admin/rust.controller', 'listServers', { params: {}, query: {} }],
+    ['slot', '../router/admin/usersRust.controller', 'listLinks', { params: { id: '4' } }],
+  ]
+
+  for (const [tier, modulePath, handler, req] of cases) {
+    withCore()
+
+    // Core's `query` is the fake's spy; make it throw so every handler takes its
+    // failure branch.
+    require('../core')._reset()
+    require('../core').init(fakeCtx({
+      db: { query: () => Promise.reject(new Error('the database is not there')), pool: {} },
+    }))
+
+    const controller = require(modulePath)
+    const res = fakeRes()
+    await controller[handler](req, res)
+
+    assert.equal(res.statusCode, 500, `${tier}.${handler} did not fail`)
+    assert.equal(typeof res.body.message, 'string', `${tier}.${handler} sent no \`message\``)
+    assert.equal(res.body.error, undefined, `${tier}.${handler} answers in \`error\``)
+  }
+})

server/test/frozenManifest.test.js

@@ -157,21 +157,50 @@ test('every path in the fragment is fully qualified', () => {
 
 test("the manifest and the module's declared mounts agree", () => {
   const { routes } = JSON.parse(fs.readFileSync(MANIFEST, 'utf8'))
-  const { mounts } = JSON.parse(fs.readFileSync(path.join(__dirname, '..', '..', 'module.json'), 'utf8'))
+  const manifest = JSON.parse(fs.readFileSync(path.join(__dirname, '..', '..', 'module.json'), 'utf8'))
 
   const declared = []
-  for (const [tier, prefixes] of Object.entries(mounts)) {
+  for (const [tier, prefixes] of Object.entries(manifest.mounts)) {
     for (const prefix of prefixes) declared.push(`/api/v1/${tier}${prefix}/`)
   }
 
-  // Every route this module serves is under a prefix it declared. There is no
-  // exception here yet, and that is the point of asserting it now: phase 6 adds
-  // the `admin.users.detail` extension slot, whose routes live under core's
-  // `/api/v1/admin/users/` rather than under any mount of ours (§2.4). When that
-  // arrives this test must grow the exception deliberately, rather than a route
-  // outside every declared mount arriving unnoticed.
+  // **The exception this test predicted, now grown deliberately.** Phase 6 fills
+  // `admin.users.detail`, whose routes live on a resource CORE owns
+  // (`/api/v1/admin/users/:id`) rather than under any mount of ours — §2.4's
+  // fourth mount shape. So a route is legitimate if it is under a declared
+  // prefix, or under the mount of a slot this module declares.
+  //
+  // The slot's mount is restated here rather than imported, for the same reason
+  // the protocol catalogue is restated in `catalogue.test.js`: it is CORE's
+  // constant, and a module that derived it from its own generator would be
+  // checking that file against itself.
+  const SLOT_MOUNT = { 'admin.users.detail': '/api/v1/admin/users/' }
+
+  const slots = (manifest.extensions || []).map((slot) => {
+    const mount = SLOT_MOUNT[slot]
+    assert.ok(mount, `module.json declares slot "${slot}", which §2.4's table does not list`)
+    return { slot, mount }
+  })
+
+  const used = new Set()
+
   for (const route of routes) {
-    const under = declared.some((d) => route.path.startsWith(d))
-    assert.ok(under, `${route.method} ${route.path} is served from outside every mount module.json declares`)
+    if (declared.some((d) => route.path.startsWith(d))) continue
+
+    const slot = slots.find((s) => route.path.startsWith(s.mount))
+    assert.ok(
+      slot,
+      `${route.method} ${route.path} is served from outside every mount module.json declares, ` +
+      'and outside every slot it fills',
+    )
+    used.add(slot.slot)
+  }
+
+  // The other half, and the reason the exception is narrow: a declared slot that
+  // contributes no route is an exception widening this check for nothing. Core
+  // never checks that a declared slot was filled (`checkDeclared` covers `mounts`
+  // alone), so this is the only place it is noticed.
+  for (const { slot } of slots) {
+    assert.ok(used.has(slot), `module.json declares "${slot}" but no route in the manifest comes from it`)
   }
 })

server/test/identityRoutes.test.js

@@ -0,0 +1,89 @@
+// ── The shape of the identity surface ─────────────────────────────────────
+//
+// Three properties that are invisible in review and expensive in production:
+//
+//   • **the link route is rate-limited** (R1). Six characters from a 32-glyph
+//     alphabet is a good code only while a guesser is made to pay per attempt,
+//     and once phase 7 grants permissions against a link, guessing one is a
+//     privilege-escalation path rather than a nuisance.
+//   • **the extension router merges its parent's params**. Without
+//     `mergeParams`, `req.params.id` is `undefined` and every statement in that
+//     panel silently scopes to no user — a panel that reads as "this user has no
+//     Rust account" for everybody.
+//   • **the extension's paths keep the module's own segment.** Core owns
+//     `/admin/users/:id`; a bare `/links` would be this module claiming a word on
+//     a URL it does not own, and the next module to fill a slot would collide.
+
+const test = require('node:test')
+const assert = require('node:assert')
+
+const { fakeCtx, fakeApi } = require('./_fakes')
+
+function register(ctx = fakeCtx()) {
+  require('../core')._reset()
+  const api = fakeApi()
+  require('../index')(ctx, api)
+  return api
+}
+
+/** `[{ method, path, handlers }]` for one express router. */
+function routesOf(router) {
+  return router.stack
+    .filter((layer) => layer.route)
+    .map((layer) => ({
+      path: layer.route.path,
+      method: Object.keys(layer.route.methods)[0].toUpperCase(),
+      handlers: layer.route.stack.map((s) => s.handle),
+    }))
+}
+
+test('the player tier serves the three identity routes, and nothing else new', () => {
+  const api = register()
+  const routes = routesOf(api.record.routes.player['/rust'])
+
+  assert.deepEqual(
+    routes.map((r) => `${r.method} ${r.path}`).sort(),
+    ['DELETE /links/:steamId', 'GET /links', 'GET /servers', 'POST /link'],
+  )
+})
+
+test('redeeming a code is rate-limited, and by a limiter of its own', () => {
+  const api = register()
+  const post = routesOf(api.record.routes.player['/rust']).find((r) => r.method === 'POST')
+
+  // The fake's `rateLimit` hands back a pass-through carrying the options it was
+  // given, so the policy itself is assertable — a limiter that was quietly
+  // removed, or one built with core's `accountChangeLimiter` shared counter,
+  // both fail here.
+  const limiter = post.handlers.find((h) => h.options && h.options.label === 'rust-link-code')
+
+  assert.ok(limiter, 'POST /link must carry its own rate limiter (R1)')
+  assert.equal(limiter.options.max, 10)
+  assert.equal(limiter.options.windowMs, 15 * 60 * 1000)
+
+  // First in the chain: a limiter behind the validator would let an attacker
+  // spend the cheap half of the request unbounded.
+  assert.equal(post.handlers[0], limiter)
+})
+
+test('the admin.users.detail router merges the parent’s params and keeps its own segment', () => {
+  const api = register()
+  const slot = api.record.extensions.find((e) => e.slot === 'admin.users.detail')
+
+  assert.ok(slot, 'the server half of admin.users.detail must be registered')
+  assert.equal(slot.router.mergeParams, true)
+
+  const paths = routesOf(slot.router).map((r) => `${r.method} ${r.path}`).sort()
+  assert.deepEqual(paths, [
+    'DELETE /rust/links/:steamId',
+    // Phase 7 filled the same panel with what this person may do in game.
+    'DELETE /rust/permissions/grants/:grantId',
+    'GET /rust/links',
+    'GET /rust/permissions',
+    'POST /rust/permissions/grants',
+  ])
+
+  for (const route of routesOf(slot.router)) {
+    assert.ok(route.path.startsWith('/rust/'), `${route.path} must live under this module's own segment`)
+  }
+})

server/test/ingest.test.js

@@ -327,3 +327,35 @@ test('a board replaces presence rather than appending to it', async () => {
   assert.match(presence[0].sql, /^DELETE FROM rust_presence/)
   assert.match(presence[1].sql, /INSERT INTO rust_presence/)
 })
+
+// ── Protocol 3: the frame that changes something other than a counter ─────
+
+test('an in-game /unlink severs the site link, scoped by Steam id alone', async () => {
+  const rec = withRecorder()
+  const ingest = require('../ingest')
+
+  await ingest.apply('main', item('account.unlinked', { steamId: '7656', name: 'Wanderer', origin: 'in-game' }))
+
+  const del = rec.statements.find((st) => st.sql.trim().toUpperCase().startsWith('DELETE'))
+
+  // It arrives on the FEED rather than through a route because the plugin has no
+  // link to delete — the site is the author of record. And it is the only way out
+  // of a link on the wrong account, because the site refuses to move a Steam id
+  // another account already holds (D23).
+  assert.ok(del, 'an unlink frame must delete the link')
+  assert.ok(del.sql.includes('rust_account_links'))
+  assert.deepEqual(del.params, ['7656'])
+})
+
+test('asking for a code links nothing — the code does not travel on the wire', async () => {
+  const rec = withRecorder()
+  const ingest = require('../ingest')
+
+  await ingest.apply('main', item('account.link.requested', { steamId: '7656', name: 'Wanderer', ttlSec: 300 }))
+
+  // The frame exists so an operator can see linking being used. Nothing about it
+  // is redeemable: the code travels through the player, which is what makes
+  // typing it proof that they are the one who asked.
+  assert.equal(rec.touching('rust_account_links').length, 0)
+  assert.equal(rec.touching('rust_players').length, 1)
+})

server/test/links.test.js

@@ -0,0 +1,294 @@
+// ── Identity: the fleet loop and the refusal ──────────────────────────────
+//
+// Two things in this file are worth more than the rest, and both are about
+// telling answers apart that a naive implementation collapses:
+//
+//   • **A code is minted by ONE server** and the player types six characters into
+//     a browser. Every server is asked in turn (D24), and "every reachable server
+//     said no" is NOT the same answer as "a server could not be reached" — the
+//     second is the case where the player's code is perfectly good and the advice
+//     "run /link again" is useless, because it sends them back to the server that
+//     is down.
+//
+//   • **A Steam id another account holds is refused, never moved** (D23). Once
+//     phase 7 grants permissions against a link and phase 13 hangs entitlements
+//     off it, a silent move is an account takeover performed by typing six
+//     characters.
+
+const test = require('node:test')
+const assert = require('node:assert')
+
+const { fakeCtx } = require('./_fakes')
+
+/**
+ * Installs a ctx whose `db.query` answers from a small script.
+ *
+ * `rows` is consulted by the first word of the statement, which is as much SQL as
+ * these tests should know: the point of each one is the decision the model makes,
+ * not the shape of a SELECT it delegates.
+ */
+function withCore({ select = [], onInsert = null } = {}) {
+  const queries = []
+
+  const ctx = fakeCtx({
+    db: {
+      query: (sql, params) => {
+        queries.push({ sql, params })
+
+        const verb = sql.trim().split(/\s+/)[0].toUpperCase()
+
+        if (verb === 'SELECT') {
+          const next = Array.isArray(select) ? select.shift() : select
+          return Promise.resolve(next || [])
+        }
+
+        if (verb === 'INSERT' && onInsert) return onInsert(params)
+
+        return Promise.resolve({ affectedRows: 1 })
+      },
+      pool: {},
+    },
+  })
+
+  require('../core')._reset()
+  require('../core').init(ctx)
+
+  return { ctx, queries }
+}
+
+/** A fleet of `n` servers, and a sidecar that answers from a script. */
+function fleetOf(replies) {
+  const servers = require('../model/servers/servers.model')
+  const sidecar = require('../sidecarClient')
+
+  const asked = []
+  const ids = Object.keys(replies)
+
+  servers.listForPolling = async () => ids.map((id) => ({ id, baseUrl: `http://${id}`, token: 't' }))
+
+  sidecar.confirmLink = async (server, code) => {
+    asked.push({ server: server.id, code })
+    return replies[server.id]
+  }
+
+  return asked
+}
+
+/** The two replies a reachable sidecar can carry, and the one it cannot. */
+const linkOk = (steamId, name) => ({ ok: true, status: 'ok', data: { kind: 'link.ok', steamId, name } })
+const linkRefused = { ok: true, status: 'ok', data: { kind: 'link.error', reason: 'unknown' } }
+const unreachable = { ok: false, status: 'transport-error', data: null }
+
+test('every server is asked until one recognises the code, and the one that answered is recorded', async () => {
+  const { queries } = withCore({ select: [[], [{ steamId: '7656', userId: 4, name: 'Wanderer', serverId: 'b' }]] })
+  const links = require('../model/links/links.model')
+
+  const asked = fleetOf({ a: linkRefused, b: linkOk('7656', 'Wanderer') })
+
+  const result = await links.redeem({ code: 'K7M2PQ', userId: 4 })
+
+  assert.equal(result.ok, true)
+  assert.equal(result.link.steamId, '7656')
+
+  // Both servers were asked, in order, with the same code — and the loop stopped
+  // at the one that said yes.
+  assert.deepEqual(asked, [{ server: 'a', code: 'K7M2PQ' }, { server: 'b', code: 'K7M2PQ' }])
+
+  // The server that minted it is stored. It is not part of the identity — a link
+  // is fleet-wide — but it is where a support conversation starts.
+  const insert = queries.find((q) => q.sql.trim().toUpperCase().startsWith('INSERT'))
+  assert.deepEqual(insert.params, ['7656', 4, 'Wanderer', 'b'])
+})
+
+test('a server after the one that answered is never asked', async () => {
+  withCore({ select: [[], [{ steamId: '7656', userId: 4 }]] })
+  const links = require('../model/links/links.model')
+
+  const asked = fleetOf({ a: linkOk('7656', 'Wanderer'), b: linkRefused, c: linkRefused })
+
+  await links.redeem({ code: 'K7M2PQ', userId: 4 })
+
+  // A code is spent on the plugin's FIRST lookup, so carrying on after a yes
+  // would be asking four other game hosts to look up a secret that has already
+  // been redeemed.
+  assert.deepEqual(asked.map((a) => a.server), ['a'])
+})
+
+test('a Steam id another account holds is refused, not moved — and the loop stops', async () => {
+  // The whole of D23 in one assertion. The holder is named because the player is
+  // signed in and the advice ("sign in as that account, or run /unlink") is
+  // unusable without it.
+  withCore({ select: [[{ steamId: '7656', userId: 9, username: 'someone-else' }]] })
+  const links = require('../model/links/links.model')
+
+  const asked = fleetOf({ a: linkOk('7656', 'Wanderer'), b: linkRefused })
+
+  const result = await links.redeem({ code: 'K7M2PQ', userId: 4 })
+
+  assert.equal(result.ok, false)
+  assert.equal(result.reason, 'taken')
+  assert.equal(result.username, 'someone-else')
+
+  // Asking the rest of the fleet would answer the same question more slowly: the
+  // verdict is about the Steam id, not about this server.
+  assert.deepEqual(asked.map((a) => a.server), ['a'])
+})
+
+test('a code already redeemed by the SAME user is a success, not an error', async () => {
+  withCore({ select: [[{ steamId: '7656', userId: 4, name: 'Wanderer', serverId: 'a' }]] })
+  const links = require('../model/links/links.model')
+
+  fleetOf({ a: linkOk('7656', 'Wanderer') })
+
+  const result = await links.redeem({ code: 'K7M2PQ', userId: 4 })
+
+  // A player who pressed the button twice, or whose confirmation was applied on a
+  // request that then timed out. Reporting that as a failure would send them to
+  // run `/link` again for a link they already have.
+  assert.equal(result.ok, true)
+  assert.equal(result.already, true)
+})
+
+test('"every reachable server refused" is not the same answer as "a server was unreachable"', async () => {
+  withCore()
+  const links = require('../model/links/links.model')
+
+  fleetOf({ a: linkRefused, b: unreachable })
+
+  const result = await links.redeem({ code: 'K7M2PQ', userId: 4 })
+
+  // The failure this prevents: a player linked on the server that is down, is
+  // told their code is wrong, runs `/link` again on that same server, and is told
+  // the same thing for as long as it stays down.
+  assert.equal(result.reason, 'unsure')
+})
+
+test('a fleet nobody can reach is offline, and a fleet that all refused is a bad code', async () => {
+  withCore()
+  let links = require('../model/links/links.model')
+
+  fleetOf({ a: unreachable, b: unreachable })
+  assert.equal((await links.redeem({ code: 'K7M2PQ', userId: 4 })).reason, 'offline')
+
+  withCore()
+  links = require('../model/links/links.model')
+
+  fleetOf({ a: linkRefused, b: linkRefused })
+  assert.equal((await links.redeem({ code: 'K7M2PQ', userId: 4 })).reason, 'rejected')
+})
+
+test('a site with no servers configured says so rather than that the code is wrong', async () => {
+  withCore()
+  const links = require('../model/links/links.model')
+
+  fleetOf({})
+
+  assert.equal((await links.redeem({ code: 'K7M2PQ', userId: 4 })).reason, 'no-servers')
+})
+
+test('two confirmations of one Steam id race into the primary key, not into a 500', async () => {
+  // The window the PRIMARY KEY exists for: both requests read "not linked", both
+  // write. The second insert is refused by the key, and the refusal has to become
+  // the same sentence the check above produces — otherwise one of two players
+  // pressing a button at the same moment gets an internal error.
+  const dup = Object.assign(new Error('duplicate'), { code: 'ER_DUP_ENTRY' })
+
+  withCore({
+    select: [[], [{ steamId: '7656', userId: 9, username: 'someone-else' }]],
+    onInsert: () => Promise.reject(dup),
+  })
+  const links = require('../model/links/links.model')
+
+  fleetOf({ a: linkOk('7656', 'Wanderer') })
+
+  const result = await links.redeem({ code: 'K7M2PQ', userId: 4 })
+
+  assert.equal(result.ok, false)
+  assert.equal(result.reason, 'taken')
+  assert.equal(result.username, 'someone-else')
+})
+
+test('the same race, won by the caller, is a success', async () => {
+  const dup = Object.assign(new Error('duplicate'), { errno: 1062 })
+
+  withCore({
+    select: [[], [{ steamId: '7656', userId: 4, name: 'Wanderer', serverId: 'a' }]],
+    onInsert: () => Promise.reject(dup),
+  })
+  const links = require('../model/links/links.model')
+
+  fleetOf({ a: linkOk('7656', 'Wanderer') })
+
+  const result = await links.redeem({ code: 'K7M2PQ', userId: 4 })
+
+  assert.equal(result.ok, true)
+  assert.equal(result.already, true)
+})
+
+test('a link is never shaped with anything a code could be recovered from', async () => {
+  withCore()
+  const links = require('../model/links/links.model')
+
+  const shaped = links.shape({
+    steamId: '7656',
+    userId: 4,
+    username: 'someone',
+    name: 'Wanderer',
+    serverId: 'a',
+    linkedAt: '2026-09-21T00:00:00Z',
+  })
+
+  // `userId` and `username` are deliberately absent: the caller is the user, and
+  // a list that carried somebody's website username would be a different fact
+  // from "you hold this Steam id".
+  assert.deepEqual(Object.keys(shaped).sort(), ['linkedAt', 'name', 'serverId', 'steamId'])
+})
+
+test('an unlink is scoped by user in the statement, not checked before it', async () => {
+  const { queries } = withCore()
+  const links = require('../model/links/links.model')
+
+  await links.unlinkOwned('7656', 4)
+
+  const del = queries.find((q) => q.sql.trim().toUpperCase().startsWith('DELETE'))
+
+  // Read-then-write would leave a gap between the ownership test and the
+  // deletion; one statement closes it, and the row count is what tells "removed"
+  // from "was not yours".
+  assert.ok(del.sql.includes('user_id = ?'))
+  assert.deepEqual(del.params, ['7656', 4])
+})
+
+test('the in-game unlink is scoped by Steam id alone, because that is the authority', async () => {
+  const { queries } = withCore()
+  const links = require('../model/links/links.model')
+
+  await links.unlinkFromGame('7656')
+
+  const del = queries.find((q) => q.sql.trim().toUpperCase().startsWith('DELETE'))
+
+  // Whoever is connected to the game as that Steam account is who it is — a
+  // stronger proof of ownership than the site can obtain any other way. Scoping
+  // this by website user would make `/unlink` fail for the one player who needs
+  // it: the one who linked the wrong account.
+  assert.ok(!del.sql.includes('user_id'))
+  assert.deepEqual(del.params, ['7656'])
+})
+
+test('a player sees the name the GAME last saw, not the one they linked under', async () => {
+  withCore({ select: [[{ steamId: '7656', userId: 4, name: 'Wanderer-old', playerName: 'Wanderer', serverId: 'a', linkedAt: 'x' }]] })
+  const links = require('../model/links/links.model')
+
+  const [link] = await links.listForUser(4)
+
+  // Found in a browser: staff saw `Wanderer` on the admin panel and the player
+  // saw `Wanderer-old` on their own page — the same person, labelled two ways on
+  // one site, because a Rust name changes on a whim and only one of the two reads
+  // was joining `rust_players`.
+  assert.equal(link.name, 'Wanderer')
+
+  // And the fallback still holds for a link whose account has never played.
+  withCore({ select: [[{ steamId: '7656', userId: 4, name: 'Wanderer-old', playerName: null, linkedAt: 'x' }]] })
+  const again = require('../model/links/links.model')
+  assert.equal((await again.listForUser(4))[0].name, 'Wanderer-old')
+})

server/test/permissions.test.js

@@ -0,0 +1,285 @@
+// ── The permission mirror ─────────────────────────────────────────────────
+//
+// The whole of R2's correctness is three set operations and one rule about what
+// counts as landed, and every test here is one of those:
+//
+//   desired − pushed   apply
+//   pushed  − desired  RETIRE, because the site put it there and withdrew it
+//   present − desired  drift, which is reported and never undone
+//
+//   and: a grant naming a permission the server has not registered did NOT land,
+//   however much the push looked like it worked.
+//
+// The last one is the one with teeth. `GrantUserPermission` returns void, throws
+// nothing and logs nothing for an unregistered name (PLAN.md §12.2 rule 1), so a
+// module that recorded it as pushed would believe it had given a privilege it had
+// not — and would then RETIRE it from a server that never had it, which is a
+// no-op that reads as a success in every log.
+
+const test = require('node:test')
+const assert = require('node:assert')
+
+const { fakeCtx } = require('./_fakes')
+
+function withCore(overrides = {}) {
+  const queries = []
+
+  require('../core')._reset()
+  require('../core').init(
+    fakeCtx({
+      db: {
+        query: (sql, params) => {
+          queries.push({ sql: sql.trim().replace(/\s+/g, ' '), params })
+          const verb = sql.trim().split(/\s+/)[0].toUpperCase()
+          if (verb === 'SELECT') return Promise.resolve([])
+          return Promise.resolve({ affectedRows: 1 })
+        },
+        pool: {},
+      },
+      ...overrides,
+    }),
+  )
+
+  return queries
+}
+
+/** One authored set: a fleet group, a server-scoped group, and two grants. */
+function authored() {
+  return {
+    groups: [
+      { name: 'vip', title: 'VIP', rank: 10, scope: '*' },
+      { name: 'builder', title: 'Builder', rank: 0, scope: 'creative' },
+    ],
+    groupPermissions: [
+      { groupName: 'vip', permission: 'kits.vip' },
+      { groupName: 'builder', permission: 'buildtools.use' },
+    ],
+    members: [
+      { groupName: 'vip', userId: 1 },
+      { groupName: 'builder', userId: 2 },
+    ],
+    grants: [
+      { id: 1, userId: 1, permission: 'kits.gold', scope: '*', steamId: '7656001' },
+      { id: 2, userId: 3, permission: 'kits.gold', scope: '*', steamId: null },
+      { id: 3, userId: 2, permission: 'zonemanager.admin', scope: 'creative', steamId: '7656002' },
+    ],
+    // One person with TWO Steam accounts, one with one, one with none.
+    steamIdsByUser: new Map([
+      [1, ['7656001', '7656099']],
+      [2, ['7656002']],
+    ]),
+  }
+}
+
+test('a grant reaches every Steam account its holder has linked (D28)', () => {
+  withCore()
+  const model = require('../model/permissions/permissions.model')
+
+  const { payload } = model.buildDesired('main', authored())
+  const holders = payload.grants.map((row) => row.steamId).sort()
+
+  // `kits.gold` is authored once, against user 1, who holds two accounts.
+  assert.deepEqual(holders, ['7656001', '7656099'])
+  for (const row of payload.grants) assert.deepEqual(row.permissions, ['kits.gold'])
+})
+
+test('a holder who has linked nothing contributes to the namespace but reaches nobody', () => {
+  withCore()
+  const model = require('../model/permissions/permissions.model')
+
+  const { payload, rows } = model.buildDesired('main', authored())
+
+  // User 3 holds `kits.gold` and has no account. Nothing is pushed for them…
+  assert.ok(!rows.some((row) => row.kind === 'grant' && row.subject === null))
+  // …and the permission is still MANAGED, which is what makes a hand grant of it
+  // to somebody else show up as drift rather than as nothing at all.
+  assert.ok(payload.managed.includes('kits.gold'))
+})
+
+test('scope decides what a server is sent at all (D29)', () => {
+  withCore()
+  const model = require('../model/permissions/permissions.model')
+
+  const main = model.buildDesired('main', authored())
+  const creative = model.buildDesired('creative', authored())
+
+  assert.deepEqual(main.payload.groups.map((g) => g.name), ['vip'])
+  assert.deepEqual(creative.payload.groups.map((g) => g.name).sort(), ['builder', 'vip'])
+
+  // The server-scoped grant is on `creative` and nowhere else.
+  assert.ok(!main.payload.managed.includes('zonemanager.admin'))
+  assert.ok(creative.payload.managed.includes('zonemanager.admin'))
+})
+
+test('a group travels as a group: its members and its permissions are separate facts (D30)', () => {
+  withCore()
+  const model = require('../model/permissions/permissions.model')
+
+  const { payload, rows } = model.buildDesired('main', authored())
+  const vip = payload.groups.find((group) => group.name === 'vip')
+
+  assert.deepEqual(vip.permissions, ['kits.vip'])
+  assert.deepEqual(vip.members.sort(), ['7656001', '7656099'])
+
+  // Three distinct row kinds, because the game can fail at each independently: a
+  // group can exist while a membership does not, which is exactly what happens
+  // for a player the store has never seen.
+  assert.ok(rows.some((r) => r.kind === 'group' && r.subject === 'vip'))
+  assert.ok(rows.some((r) => r.kind === 'group-permission' && r.object === 'kits.vip'))
+  assert.ok(rows.some((r) => r.kind === 'member' && r.object === 'vip'))
+})
+
+test('the digest does not depend on the order rows came out of the database', () => {
+  withCore()
+  const model = require('../model/permissions/permissions.model')
+
+  const rows = model.buildDesired('main', authored()).rows
+  const shuffled = [...rows].reverse()
+
+  // An unsorted digest would differ between two reads of an unchanged set, and
+  // the loop would push to every game server on every tick for ever.
+  assert.equal(model.hashRows(rows), model.hashRows(shuffled))
+  assert.notEqual(model.hashRows(rows), model.hashRows(rows.slice(1)))
+})
+
+test('what this site put there and has withdrawn is the only thing retired (D31)', () => {
+  withCore()
+  const model = require('../model/permissions/permissions.model')
+
+  const desired = [
+    { kind: 'grant', subject: '7656001', object: 'kits.gold' },
+    { kind: 'member', subject: '7656001', object: 'vip' },
+  ]
+
+  const pushed = [
+    { kind: 'grant', subject: '7656001', object: 'kits.gold' }, // still wanted
+    { kind: 'grant', subject: '7656001', object: 'kits.silver' }, // withdrawn
+  ]
+
+  assert.deepEqual(model.retirements(pushed, desired), [
+    { kind: 'grant', subject: '7656001', object: 'kits.silver' },
+  ])
+
+  // A hand grant is in NEITHER set, so it is never retired by this calculation —
+  // it reaches the operator as drift instead. That difference is the reason the
+  // pushed ledger exists at all.
+  assert.deepEqual(model.retirements([], desired), [])
+})
+
+test('a permission the server could not resolve is not recorded as pushed', async () => {
+  const queries = withCore()
+  const permSync = require('../permSync')
+
+  const desired = {
+    hash: 'h1',
+    rows: [
+      { kind: 'grant', subject: '7656001', object: 'kits.gold' },
+      { kind: 'grant', subject: '7656001', object: 'kits.vip' },
+      { kind: 'member', subject: '7656002', object: 'vip' },
+      { kind: 'member', subject: '7656003', object: 'vip' },
+    ],
+  }
+
+  const report = {
+    kind: 'perm.report',
+    applied: { grants: 1 },
+    unresolved: ['kits.vip'],
+    pending: ['7656003:vip'],
+    foreign: [],
+  }
+
+  // The catalogue refresh is a second call to the game; stubbed so the report
+  // path is what this test is about.
+  const sidecar = require('../sidecarClient')
+  sidecar.permCatalogue = async () => ({ ok: false, status: 'no-token', data: null })
+
+  await permSync.applyReport({ id: 'main' }, { desired, retire: [], report, bootId: null, wipeId: null })
+
+  const insert = queries.find((q) => q.sql.startsWith('INSERT IGNORE INTO rust_perm_pushed'))
+  assert.ok(insert, 'the rows that landed must be recorded')
+
+  const recorded = insert.params.join(' ')
+  assert.ok(recorded.includes('kits.gold'), 'a grant that landed is pushed')
+  assert.ok(!recorded.includes('kits.vip'), 'an unresolved permission never reached the store')
+  assert.ok(recorded.includes('7656002'), 'a membership that took is pushed')
+  assert.ok(!recorded.includes('7656003'), 'a pending membership is not in the game yet')
+})
+
+test('a restart, a wipe and a hand edit each provoke a sync; a quiet server does not', () => {
+  withCore()
+  const permSync = require('../permSync')
+
+  const base = {
+    state: 'ok',
+    dirty: false,
+    syncedHash: 'h1',
+    bootId: 'boot-1',
+    wipeId: 'w-1',
+    lastAttemptAt: new Date(),
+  }
+
+  const at = (sync, state = {}) =>
+    permSync.reasonToSync({
+      desiredHash: 'h1',
+      sync,
+      state: { bootId: 'boot-1', wipeId: 'w-1', ...state },
+      force: false,
+    })
+
+  assert.equal(at(base), null, 'nothing changed: no push')
+  assert.equal(at({ ...base, dirty: true }), 'dirty')
+  assert.equal(permSync.reasonToSync({ desiredHash: 'h2', sync: base, state: {}, force: false }), 'changed')
+  assert.equal(at(base, { bootId: 'boot-2' }), 'restart')
+  assert.equal(at(base, { wipeId: 'w-2' }), 'wipe')
+  assert.equal(at(null), 'first')
+
+  // The audit is the backstop that finds drift on a server nobody has touched.
+  const old = new Date(Date.now() - permSync.AUDIT_MS - 1000)
+  assert.equal(at({ ...base, lastAttemptAt: old }), 'audit')
+})
+
+test('a failing server is left alone for a backoff, unless something changed', () => {
+  withCore()
+  const permSync = require('../permSync')
+
+  const failing = {
+    state: 'failed',
+    dirty: false,
+    syncedHash: 'h1',
+    lastAttemptAt: new Date(),
+  }
+
+  assert.equal(
+    permSync.reasonToSync({ desiredHash: 'h1', sync: failing, state: {}, force: false }),
+    null,
+    'a server that just failed is not hammered every thirty seconds',
+  )
+
+  assert.equal(
+    permSync.reasonToSync({ desiredHash: 'h1', sync: { ...failing, dirty: true }, state: {}, force: false }),
+    'retry',
+    'an operator changing something is a reason to try again at once',
+  )
+
+  const older = new Date(Date.now() - permSync.FAIL_BACKOFF_MS - 1000)
+  assert.equal(
+    permSync.reasonToSync({ desiredHash: 'h1', sync: { ...failing, lastAttemptAt: older }, state: {}, force: false }),
+    'retry',
+  )
+})
+
+test('names are lowered, because the store lowers them', () => {
+  withCore()
+  const model = require('../model/permissions/permissions.model')
+
+  const set = {
+    ...authored(),
+    grants: [{ id: 9, userId: 1, permission: 'Kits.GOLD', scope: '*', steamId: '7656001' }],
+  }
+
+  const { payload } = model.buildDesired('main', set)
+
+  // Pushed as `kits.gold`, read back as `kits.gold`. Unlowered, the site would
+  // push one name, find another, and report its own grant as drift for ever.
+  assert.deepEqual(payload.grants[0].permissions, ['kits.gold'])
+})

server/test/refresh.test.js

@@ -0,0 +1,116 @@
+// ── What a refresh writes when nobody answers ─────────────────────────────
+//
+// The refresh loop has three outcomes (see `boot.js`), and the two unhappy ones
+// are the interesting half of this module's promise: the site renders the last
+// thing each server said **while every server is off**. A page can only do that
+// if the row still holds what the server said.
+//
+// The defect this suite exists for shipped in phase 3 and was found by walking
+// phase 4's own pages: an unreachable refresh called `putState` with two fields,
+// and `putState` replaces the row — so the first time a game host rebooted, the
+// hostname, the map, the size, the seed and the wipe id were all set to NULL.
+// The list then read "Offline" with nothing beside it, which is not "here is
+// what we know about a server that is down", it is "we have never heard of it".
+//
+// It is invisible to any test that stubs a sidecar which answers, which is why
+// there was not one.
+
+const test = require('node:test')
+const assert = require('node:assert')
+
+const { fakeCtx } = require('./_fakes')
+
+function withCore(ctx = fakeCtx()) {
+  require('../core')._reset()
+  require('../core').init(ctx)
+  return ctx
+}
+
+/** The columns a description lives in — the ones an unreachable write must not touch. */
+const DESCRIPTION = ['hostname', 'level', 'seed', 'world_size', 'boot_id', 'save_created_at', 'wipe_id']
+
+test('an unreachable refresh does not write the description columns at all', async () => {
+  const queries = []
+  withCore(fakeCtx({
+    db: {
+      query: (sql, params) => {
+        queries.push({ sql, params })
+        return Promise.resolve([])
+      },
+      pool: {},
+    },
+  }))
+
+  const db = require('../model/servers/servers.db')
+  await db.markUnreachable('main', false)
+
+  assert.equal(queries.length, 1)
+  const { sql, params } = queries[0]
+
+  // Asserted against the SQL rather than against a round trip, because the whole
+  // failure is about which columns a statement mentions. A column named here is
+  // a column that can be nulled.
+  for (const column of DESCRIPTION) {
+    assert.ok(!sql.includes(column), `markUnreachable writes ${column}, which is the server's description`)
+  }
+
+  assert.ok(sql.includes('reachable'))
+  assert.ok(sql.includes('online'))
+  assert.ok(sql.includes('updated_at'))
+  assert.deepStrictEqual(params, ['main', 0])
+})
+
+test('a sidecar that is up with no game behind it is reachable and offline', async () => {
+  // The middle outcome, and the one that is easy to collapse into the other two:
+  // a fresh install whose plugin is not loaded yet. Reporting it as unreachable
+  // sends an operator to look at the network instead of at the game server.
+  const queries = []
+  withCore(fakeCtx({
+    db: {
+      query: (sql, params) => {
+        queries.push({ sql, params })
+        return Promise.resolve([])
+      },
+      pool: {},
+    },
+  }))
+
+  await require('../model/servers/servers.db').markUnreachable('main', true)
+  assert.deepStrictEqual(queries[0].params, ['main', 1])
+})
+
+test('neither unhappy path calls putState', async () => {
+  // The regression in one assertion: `putState` is the whole-row write, and
+  // calling it with two fields is what blanked the description.
+  withCore(fakeCtx({ db: { query: () => Promise.resolve([]), pool: {} } }))
+
+  const db = require('../model/servers/servers.db')
+  const sidecar = require('../sidecarClient')
+  const boot = require('../boot')
+
+  const originalPut = db.putState
+  const originalMark = db.markUnreachable
+  const originalBoards = sidecar.boards
+  const marked = []
+  let putCalls = 0
+
+  db.putState = async () => { putCalls += 1 }
+  db.markUnreachable = async (id, reachable) => { marked.push([id, reachable]) }
+
+  try {
+    // Nothing answered.
+    sidecar.boards = async () => ({ ok: false, status: 0, data: null })
+    await boot.refreshOne({ id: 'main', baseUrl: 'http://127.0.0.1:1', token: 't', protocol: 2 })
+
+    // The sidecar answered, and has never heard from a game.
+    sidecar.boards = async () => ({ ok: true, status: 200, data: { boards: {} } })
+    await boot.refreshOne({ id: 'main', baseUrl: 'http://127.0.0.1:1', token: 't', protocol: 2 })
+
+    assert.equal(putCalls, 0, 'an unhappy refresh replaced the whole state row')
+    assert.deepStrictEqual(marked, [['main', false], ['main', true]])
+  } finally {
+    db.putState = originalPut
+    db.markUnreachable = originalMark
+    sidecar.boards = originalBoards
+  }
+})

server/test/servers.test.js

@@ -97,10 +97,96 @@ test('the public shape carries nothing about the sidecar', () => {
   // someone who did not read this file, and an allowlist is the only assertion
   // that catches one.
   assert.deepStrictEqual(Object.keys(shaped).sort(), [
-    'hostname', 'id', 'level', 'maxPlayers', 'name', 'online', 'players', 'seed', 'stale', 'updatedAt', 'worldSize',
+    'hostname', 'id', 'lastSeenAt', 'level', 'maxPlayers', 'name', 'online', 'players', 'seed', 'stale',
+    'updatedAt', 'wipeId', 'wipedAt', 'worldSize',
   ])
 })
 
+test('"last reported" is when a frame arrived, not when we last polled', () => {
+  withCore()
+  const servers = require('../model/servers/servers.model')
+
+  // The defect the phase-4 page walk found, in one assertion. A refresh that
+  // cannot reach a sidecar still writes `updated_at` — it has to, because that is
+  // what staleness is computed from — and a page reading it as "last reported"
+  // told a reader that a server which had been down for days had reported just
+  // now, every thirty seconds, for as long as it stayed down.
+  const state = stateRow({
+    online: 0,
+    reachable: 0,
+    updatedAt: new Date(NOW - 5_000).toISOString(),
+    lastSeenAt: new Date(NOW - 3 * 86400_000).toISOString(),
+  })
+
+  const shaped = servers.shapePublic(serverRow(), state, NOW)
+  assert.strictEqual(shaped.lastSeenAt, new Date(NOW - 3 * 86400_000).toISOString())
+  assert.strictEqual(shaped.stale, false, 'the row itself is fresh — it was written five seconds ago')
+  assert.strictEqual(shaped.online, false)
+
+  // A server nothing has ever heard from has no such moment, and `null` is what
+  // a page renders as "never" rather than as the epoch.
+  assert.strictEqual(servers.shapePublic(serverRow(), undefined, NOW).lastSeenAt, null)
+})
+
+test('the public shape carries the current wipe, from the state row', () => {
+  withCore()
+  const servers = require('../model/servers/servers.model')
+
+  // The wipe id on the STATE row, not the newest row in `rust_wipes`. The two
+  // usually agree, and the state row is the one that is right when they do not:
+  // the wipe list is derived from events that have been ingested, so a server
+  // that has just wiped and said nothing since has a new id here and no row there.
+  const shaped = servers.shapePublic(serverRow(), stateRow({ wipeId: 'w-2026-09', saveCreatedAt: '2026-09-04T18:00:00Z' }), NOW)
+  assert.strictEqual(shaped.wipeId, 'w-2026-09')
+  assert.strictEqual(shaped.wipedAt, '2026-09-04T18:00:00Z')
+
+  // A server nothing has polled yet has no wipe, and `null` is the honest answer
+  // — an empty string would be sent back as `?wipe=`, which asks a different
+  // question and answers nothing.
+  const never = servers.shapePublic(serverRow(), undefined, NOW)
+  assert.strictEqual(never.wipeId, null)
+  assert.strictEqual(never.wipedAt, null)
+})
+
+test('a disabled server is not there, rather than forbidden', async () => {
+  withCore()
+
+  const db = require('../model/servers/servers.db')
+  const model = require('../model/servers/servers.model')
+  const originalServer = db.getServer
+  const originalState = db.getState
+
+  db.getState = async () => stateRow()
+
+  try {
+    // The detail route is the only one under `/servers/:id` that can say "no such
+    // server" — the other four answer an empty list, because an unknown id
+    // genuinely has no events. So what `null` means here decides what a page
+    // renders, and a disabled server and a missing one must mean the same thing:
+    // an operator who switched a server off did not switch it into a 403.
+    db.getServer = async () => ({ ...serverRow(), enabled: 0 })
+    assert.strictEqual(await model.getPublic('main', NOW), null)
+
+    db.getServer = async () => null
+    assert.strictEqual(await model.getPublic('nope', NOW), null)
+
+    // And an id nobody asked about never reaches the database.
+    let asked = false
+    db.getServer = async () => { asked = true; return null }
+    assert.strictEqual(await model.getPublic('', NOW), null)
+    assert.strictEqual(asked, false)
+
+    db.getServer = async () => serverRow()
+    const server = await model.getPublic('main', NOW)
+    assert.strictEqual(server.id, 'main')
+    assert.strictEqual(server.online, true)
+    assert.ok(!Object.prototype.hasOwnProperty.call(server, 'sidecarBaseUrl'))
+  } finally {
+    db.getServer = originalServer
+    db.getState = originalState
+  }
+})
+
 test('the admin shape reports whether a token is stored, never the token', () => {
   withCore()
   const servers = require('../model/servers/servers.model')