Merge pull request 'feat(shard): follow the visibility framework and read the Protocol 3.0 profile' (#30) from feat/protocol-3-visibility into main

Reviewed-on: #30
Reviewed-by: Colby Whitlock <whitlocktech@gmail.com>

app/src/main/java/com/runicgateway/app/data/api/PublicApi.kt

@@ -3,6 +3,9 @@
  */
 package com.runicgateway.app.data.api
 
+import com.runicgateway.app.data.api.dto.AtlasCreatureDto
+import com.runicgateway.app.data.api.dto.AtlasCreaturePageDto
+import com.runicgateway.app.data.api.dto.AtlasMetaDto
 import com.runicgateway.app.data.api.dto.ChampDto
 import com.runicgateway.app.data.api.dto.ContactRequest
 import com.runicgateway.app.data.api.dto.ContactResponse
@@ -12,11 +15,17 @@ import com.runicgateway.app.data.api.dto.GovernorDto
 import com.runicgateway.app.data.api.dto.GovernorTermDto
 import com.runicgateway.app.data.api.dto.GuildDto
 import com.runicgateway.app.data.api.dto.HouseDto
+import com.runicgateway.app.data.api.dto.MarketMetaDto
+import com.runicgateway.app.data.api.dto.MarketPageDto
+import com.runicgateway.app.data.api.dto.MarketVendorDto
 import com.runicgateway.app.data.api.dto.OnlineStaffDto
 import com.runicgateway.app.data.api.dto.PageDto
+import com.runicgateway.app.data.api.dto.PointsBoardDto
 import com.runicgateway.app.data.api.dto.PostDto
 import com.runicgateway.app.data.api.dto.PresenceDto
+import com.runicgateway.app.data.api.dto.RulesetDto
 import com.runicgateway.app.data.api.dto.SettingsDto
+import com.runicgateway.app.data.api.dto.ShardFeaturesDto
 import com.runicgateway.app.data.api.dto.ShardStatusDto
 import com.runicgateway.app.data.api.dto.StatusDto
 import com.runicgateway.app.data.api.dto.WikiCategoryDto
@@ -93,6 +102,14 @@ interface PublicApi {
     suspend fun postContact(@Body body: ContactRequest): ContactResponse
 
     // ── Public shard widgets (§6.2) ──────────────────────────────────────
+    /**
+     * Which shard features this caller may reach, so the menu hides entries instead
+     * of rendering links that 404/403 (§5, M11). Answered per-viewer: an anonymous
+     * call and a signed-in one can differ.
+     */
+    @GET("api/v1/public/shard/features")
+    suspend fun getShardFeatures(): ShardFeaturesDto
+
     @GET("api/v1/public/shard/status")
     suspend fun getShardStatus(): ShardStatusDto
 
@@ -128,4 +145,65 @@ interface PublicApi {
 
     @GET("api/v1/public/shard/houses")
     suspend fun getShardHouses(): List<HouseDto>
+
+    // ── Protocol 3.0 shard content (§9 M11) ──────────────────────────────
+    //
+    // Each of these sits behind the website's `requireFeature` gate: a 404 means the
+    // shard doesn't publish it and a 403 means this viewer is below its audience rung,
+    // which `toShardUiState()` folds into one "not available here" state.
+
+    /** The shard's configured ruleset. A `null` body means "not published yet". */
+    @GET("api/v1/public/shard/ruleset")
+    suspend fun getShardRuleset(): RulesetDto?
+
+    /** Every points/loyalty leaderboard the shard publishes. */
+    @GET("api/v1/public/shard/points")
+    suspend fun getShardPoints(): List<PointsBoardDto>
+
+    @GET("api/v1/public/shard/points/{system}")
+    suspend fun getShardPointsBoard(@Path("system") system: String): PointsBoardDto
+
+    /**
+     * Search the player-vendor index. **Rate-limited** — the first genuinely expensive
+     * public endpoint on the site, so handle `429` (`ErrorKind.RATE_LIMITED`).
+     */
+    @GET("api/v1/public/shard/market")
+    suspend fun getShardMarket(
+        @Query("q") query: String? = null,
+        @Query("minPrice") minPrice: Long? = null,
+        @Query("maxPrice") maxPrice: Long? = null,
+        @Query("map") map: String? = null,
+        @Query("region") region: String? = null,
+        @Query("sort") sort: String? = null,
+        @Query("limit") limit: Int? = null,
+        @Query("offset") offset: Int? = null,
+    ): MarketPageDto
+
+    /** Index size, staleness, and which facets/regions actually hold vendors. */
+    @GET("api/v1/public/shard/market/meta")
+    suspend fun getShardMarketMeta(): MarketMetaDto
+
+    @GET("api/v1/public/shard/market/vendors/{serial}")
+    suspend fun getShardMarketVendor(
+        @Path("serial") serial: String,
+        @Query("limit") limit: Int? = null,
+        @Query("offset") offset: Int? = null,
+    ): MarketVendorDto
+
+    // The atlas lives under /public/atlas, NOT /public/shard: it is static shard
+    // content parsed from the server's data files, so it stays readable while the
+    // shard is down — but it IS site-mode gated, unlike the shard routes.
+    @GET("api/v1/public/atlas/creatures")
+    suspend fun getAtlasCreatures(
+        @Query("q") query: String? = null,
+        @Query("facet") facet: String? = null,
+        @Query("limit") limit: Int? = null,
+        @Query("offset") offset: Int? = null,
+    ): AtlasCreaturePageDto
+
+    @GET("api/v1/public/atlas/creatures/{slug}")
+    suspend fun getAtlasCreature(@Path("slug") slug: String): AtlasCreatureDto
+
+    @GET("api/v1/public/atlas/meta")
+    suspend fun getAtlasMeta(): AtlasMetaDto
 }

app/src/main/java/com/runicgateway/app/data/api/dto/PlayerShardDto.kt

@@ -83,8 +83,47 @@ data class CharProfileDto(
     val titles: TitlesDto? = null,
     val guild: GuildRefDto? = null,
     val governorOf: List<String> = emptyList(),
+    /**
+     * Loyalty / points standings (Protocol 3.0 §7.3). Empty for a character that has
+     * earned nothing anywhere — the shard omits systems the character has no entry in
+     * — and empty on a shard whose plugin predates 3.0.
+     *
+     * Served **ungated**: a character's own standings are self-service data on
+     * `/player/shard/char/:serial` and do not depend on the public `leaderboards`
+     * feature being visible. Don't re-gate them app-side.
+     */
+    val points: List<CharPointsDto> = emptyList(),
 )
 
+/**
+ * One point system a character holds a score in (Protocol 3.0 §7.3).
+ *
+ * Three shapes here are counter-intuitive, and all three are what a REAL shard sends
+ * (`docs/link/v3.md` §7.5 — a fake shard emits whatever the spec says it should):
+ *
+ *  - **[maxPoints] `0` means UNCAPPED, and is the common case**, not an edge case.
+ *    ServUO's idiom for an uncapped system is `double.MaxValue`, which the plugin
+ *    normalises to `0` because the C# cast is unchecked and yielded `long.MinValue`.
+ *    Nothing may divide by it, and a full-width progress bar for an uncapped score
+ *    would imply a completion that doesn't exist.
+ *  - **[nameString] is usually `null`.** Most systems name themselves with a cliloc
+ *    rather than a literal, so humanising [system] (`QueensLoyalty` → "Queens
+ *    Loyalty") is the PRIMARY display path, not a defensive fallback.
+ *  - **[rank] is absent unless the shard runs `Bridge.cfg PointsProfileRank=true`.**
+ *    Absent and "unranked" are different answers, so it renders only when sent.
+ */
+@Serializable
+data class CharPointsDto(
+    val system: String? = null,
+    val nameString: String? = null,
+    val points: Long? = null,
+    val maxPoints: Long? = null,
+    val rank: Int? = null,
+) {
+    /** The cap, or null when the system is uncapped (see [maxPoints]). */
+    val cap: Long? get() = maxPoints?.takeIf { it > 0 }
+}
+
 @Serializable
 data class CharStatsDto(
     val str: Int? = null,
@@ -134,17 +173,45 @@ data class EquipmentDto(
     val itemId: Int? = null,
     val hue: Int? = null,
     val mods: JsonObject? = null,
-)
+    /**
+     * A player-given name — set for the minority of items someone has renamed, null
+     * for almost everything else. The shard sends the plain `Item.Name` field; it
+     * never builds a display name (that call is a packet builder, not a field read).
+     */
+    val name: String? = null,
+    /**
+     * The item's type name, resolved from its cliloc id **by the website** against
+     * its own table (`docs/website/CLILOCS.md`). Null on a shard that has no cliloc
+     * table configured, which is fully supported — the sheet then falls back to the
+     * layer, exactly as it did before the table existed.
+     */
+    val clilocName: String? = null,
+) {
+    /**
+     * What to call this item.
+     *
+     * A player-given [name] outranks the resolved type name — "Bob's lucky axe" must
+     * not be relabelled "hatchet" — and the server applies the same precedence, so
+     * this only re-states it for an item that arrived with both.
+     */
+    val label: String? get() = name ?: clilocName ?: layer
+}
 
 /**
- * Display titles (Protocol 2.0). `selected` is the index into `reward` currently
+ * Display titles (Protocol 2.0). `selected` is the index into [reward] currently
- * shown (-1 if none); `reward` entries may be a cliloc number-as-string or a
+ * shown (-1 if none); [reward] entries may be a cliloc number-as-string or a literal.
- * literal — numeric ones are skipped without a cliloc table (as the website does).
+ *
+ * [rewardResolved] is the website's **parallel array** with the numeric entries turned
+ * into words against its cliloc table — same length and order as [reward], with a null
+ * where an id resolved to nothing. It is absent entirely when no entry was numeric or
+ * the shard has no cliloc table, so read it positionally and tolerate it being short.
+ * See `displayTitles` in the character sheet.
  */
 @Serializable
 data class TitlesDto(
     val selected: Int? = null,
     val reward: List<String> = emptyList(),
+    val rewardResolved: List<String?> = emptyList(),
     val fameKarma: String? = null,
     val skill: String? = null,
 )

app/src/main/java/com/runicgateway/app/data/api/dto/ShardContentDto.kt

@@ -0,0 +1,367 @@
+/*
+ * SPDX-License-Identifier: GPL-3.0-or-later
+ */
+package com.runicgateway.app.data.api.dto
+
+import kotlinx.serialization.Serializable
+
+/**
+ * DTOs for the four shard-content surfaces Protocol 3.0 added (PLAN.md §9 M11):
+ * the ruleset, the points leaderboards, the player-vendor marketplace, and the spawn
+ * atlas. Shapes mirror the website's `public/shard.controller.js` + `public/atlas.
+ * controller.js` responses; see `docs/link/v3.md` §5–§8.
+ *
+ * Every field is nullable-with-a-default, which is load-bearing rather than merely
+ * defensive here: an admin can gate individual fields away per audience rung
+ * (`ownerName`, `location`, a board's `name`), so a response legitimately arrives
+ * with them missing and must still decode.
+ */
+
+// ── Ruleset (§5) ────────────────────────────────────────────────────────────
+
+/**
+ * `GET /public/shard/ruleset` — what this shard's world is configured to do.
+ *
+ * Every block is optional and omitted when its system is off, so a null block means
+ * "not applicable here", not "unknown". A `null` BODY (rather than an empty object)
+ * means the shard has never published a ruleset — distinct from the feature being
+ * switched off, which is a 404.
+ */
+@Serializable
+data class RulesetDto(
+    val shard: String? = null,
+    val expansion: String? = null,
+    /**
+     * The public connect address, published only when the operator set one. It is
+     * also the ruleset's one admin-configurable field, so it can be present for a
+     * signed-in viewer and absent for an anonymous one.
+     */
+    val connect: String? = null,
+    /** A flat bag of on/off flags — `cityLoyalty`, `vvv`, `siege`, `chat`, … */
+    val systems: Map<String, Boolean> = emptyMap(),
+    val caps: RulesetCapsDto? = null,
+    val accounts: RulesetAccountsDto? = null,
+    val housing: RulesetHousingDto? = null,
+    val vetRewards: RulesetVetRewardsDto? = null,
+    val vendors: RulesetVendorsDto? = null,
+    val vvv: RulesetVvvDto? = null,
+    val store: RulesetStoreDto? = null,
+    val schedule: RulesetScheduleDto? = null,
+    val updatedAt: String? = null,
+)
+
+/**
+ * Skill and stat caps.
+ *
+ * **[skill] and [totalSkill] are in TENTHS** — 1000 is 100.0 — the way ServUO stores
+ * them, and the raw number is actively misleading rather than merely unhelpful (a
+ * "1000 skill cap" reads as a shard with ten times the usual limit). Use [skillCap]
+ * and [totalSkillCap]. The stat caps below them are plain values.
+ */
+@Serializable
+data class RulesetCapsDto(
+    val skill: Int? = null,
+    val totalSkill: Int? = null,
+    val stat: Int? = null,
+    val str: Int? = null,
+    val dex: Int? = null,
+    val int: Int? = null,
+    val strMax: Int? = null,
+    val dexMax: Int? = null,
+    val intMax: Int? = null,
+) {
+    val skillCap: Double? get() = skill?.let { it / 10.0 }
+    val totalSkillCap: Double? get() = totalSkill?.let { it / 10.0 }
+}
+
+@Serializable
+data class RulesetAccountsDto(
+    val perIp: Int? = null,
+    val charSlots: Int? = null,
+    val autoCreate: Boolean? = null,
+)
+
+@Serializable
+data class RulesetHousingDto(val accountHouseLimit: Int? = null)
+
+@Serializable
+data class RulesetVetRewardsDto(
+    val enabled: Boolean? = null,
+    val rewardIntervalDays: Int? = null,
+)
+
+@Serializable
+data class RulesetVendorsDto(
+    val restockDelayMinutes: Int? = null,
+    val maxSell: Int? = null,
+    val economyStockAmount: Int? = null,
+)
+
+@Serializable
+data class RulesetVvvDto(
+    val enabled: Boolean? = null,
+    val startSilver: Int? = null,
+    val enhancedRules: Boolean? = null,
+)
+
+@Serializable
+data class RulesetStoreDto(
+    val enabled: Boolean? = null,
+    val currencyName: String? = null,
+)
+
+@Serializable
+data class RulesetScheduleDto(
+    val autoSaveFrequencyMinutes: Int? = null,
+    val autoRestartEnabled: Boolean? = null,
+    val autoRestartHour: Int? = null,
+    val autoRestartMinute: Int? = null,
+)
+
+// ── Leaderboards (§7) ───────────────────────────────────────────────────────
+
+/**
+ * One point system's board (`GET /public/shard/points`, `/points/:system`).
+ *
+ * [maxPoints] `0` means **uncapped** and is the common case, and [nameString] is
+ * usually null because most systems name themselves with a cliloc — the same two
+ * traps as [CharPointsDto], documented in full there.
+ *
+ * [players] counts players actually *holding* points, not the entry count: ten of the
+ * shard's systems auto-add a zero-point row for every character ever created, so the
+ * raw count would report the whole census as one system's participants.
+ */
+@Serializable
+data class PointsBoardDto(
+    val system: String? = null,
+    val nameString: String? = null,
+    val nameNumber: Int? = null,
+    val maxPoints: Long? = null,
+    val players: Int? = null,
+    val showOnGump: Boolean = true,
+    val top: List<PointsEntryDto> = emptyList(),
+    val t: Long? = null,
+    val updatedAt: String? = null,
+) {
+    /** The cap, or null when the system is uncapped. */
+    val cap: Long? get() = maxPoints?.takeIf { it > 0 }
+}
+
+/**
+ * A ranked character on a board. [name] is admin-configurable (the `leaderboards`
+ * feature's one field rule), so a shard can publish standings without naming who
+ * holds them — a rank with no name is a valid row, not a broken one.
+ */
+@Serializable
+data class PointsEntryDto(
+    val rank: Int? = null,
+    val serial: String? = null,
+    val name: String? = null,
+    val points: Long? = null,
+)
+
+// ── Marketplace (§8) ────────────────────────────────────────────────────────
+
+/**
+ * Where a shop stands. **Nested, not flattened**, on the wire and in the read model
+ * alike, so that ONE admin rule hides the facet, the coordinates, the region and the
+ * house together — five flat keys would be five rules that drift apart (`v3.md` §8.8).
+ * A null location means an admin gated it away; render that as an answer, not a blank.
+ */
+@Serializable
+data class MarketLocationDto(
+    val map: String? = null,
+    val x: Int? = null,
+    val y: Int? = null,
+    val z: Int? = null,
+    val region: String? = null,
+    val house: String? = null,
+)
+
+/** The shop a listing belongs to, as embedded in a search result. */
+@Serializable
+data class MarketVendorRefDto(
+    val serial: String? = null,
+    val shopName: String? = null,
+    val ownerName: String? = null,
+    val location: MarketLocationDto? = null,
+)
+
+/**
+ * One item for sale. [displayName] is resolved server-side against the site's cliloc
+ * table, preferring a player-set [name]; a shard with no cliloc table configured sends
+ * neither and the item renders by id.
+ *
+ * [child] marks an item priced by an enclosing container rather than itself, exactly
+ * as the in-game Vendor Search reports it.
+ */
+@Serializable
+data class MarketListingDto(
+    val serial: String? = null,
+    val itemId: Int? = null,
+    val hue: Int? = null,
+    val amount: Int? = null,
+    val price: Long? = null,
+    val name: String? = null,
+    val cliloc: Int? = null,
+    val displayName: String? = null,
+    val child: Boolean = false,
+    val vendor: MarketVendorRefDto? = null,
+) {
+    /** What to call this item; null when the shard publishes no name for it. */
+    val label: String? get() = name ?: displayName
+}
+
+/**
+ * A page of search results (`GET /public/shard/market`).
+ *
+ * Returns **listings, not vendors**: "who sells a vanquishing kryss and for how much"
+ * is the question, and a vendor-shaped result would make every caller flatten the
+ * shops back out.
+ *
+ * [staleAt] is the oldest vendor timestamp in the index and **must be surfaced**. The
+ * shard sweeps vendors round-robin, so a listing can legitimately be a full cycle old;
+ * a page implying live prices sends someone to an item that sold twenty minutes ago.
+ */
+@Serializable
+data class MarketPageDto(
+    val listings: List<MarketListingDto> = emptyList(),
+    val total: Int = 0,
+    val limit: Int? = null,
+    val offset: Int? = null,
+    val vendors: Int? = null,
+    val staleAt: String? = null,
+)
+
+/**
+ * One shop and its stock (`GET /public/shard/market/vendors/:serial`).
+ *
+ * [truncated] means the shard publishes only the first `MarketMaxListings` of a larger
+ * inventory — [count] is what is published, [total] what the shop holds. Saying so is
+ * the point of this screen: a search result list cannot express it.
+ */
+@Serializable
+data class MarketVendorDto(
+    val serial: String? = null,
+    val shopName: String? = null,
+    val ownerSerial: String? = null,
+    val ownerName: String? = null,
+    val location: MarketLocationDto? = null,
+    val count: Int? = null,
+    val total: Int? = null,
+    val truncated: Boolean = false,
+    val updatedAt: String? = null,
+    val items: List<MarketListingDto> = emptyList(),
+)
+
+/** Index size, staleness and the filter options that actually hold vendors. */
+@Serializable
+data class MarketMetaDto(
+    val vendors: Int = 0,
+    val items: Int = 0,
+    val staleAt: String? = null,
+    val freshAt: String? = null,
+    val maps: List<String> = emptyList(),
+    val regions: List<String> = emptyList(),
+)
+
+// ── Spawn atlas (§6) ────────────────────────────────────────────────────────
+
+/**
+ * A creature in the bestiary. Served from `/public/atlas`, **not** `/public/shard`:
+ * the atlas is static shard *content* parsed from the server's own data files, not
+ * live shard *state*, so it does not go offline with the sidecar — but unlike the
+ * shard routes it IS site-mode gated, like posts and the wiki.
+ *
+ * [points] is a **count** of spawners; [spawners] is the list, and only the
+ * single-creature route sends it. The two names are one letter apart in meaning and
+ * were deliberately separated (`v3.md` §6.3) — do not reuse one for the other.
+ */
+@Serializable
+data class AtlasCreatureDto(
+    val slug: String? = null,
+    val name: String? = null,
+    /** How many can be alive at once, summed across every spawner. */
+    val total: Int? = null,
+    /** How many spawners mention this creature. */
+    val points: Int? = null,
+    /** Spawner count per facet. */
+    val facets: Map<String, Int> = emptyMap(),
+    /**
+     * Where it appears, aggregated per named place — the detail route only, and the
+     * answer the whole screen exists to give. **Objects, not strings:** the server
+     * sends `{facet, label, spawners, maxAlive}`, and typing this `List<String>`
+     * made the detail route fail to decode entirely.
+     */
+    val places: List<AtlasPlaceDto> = emptyList(),
+    /**
+     * Operator-supplied sprite file name under `/uploads/atlas/`, or null — which is
+     * the normal state, since no artwork ships. Neither client renders it yet; the
+     * field is carried so a decode never depends on that staying true.
+     */
+    val art: String? = null,
+    val spawners: List<AtlasSpawnerDto> = emptyList(),
+    val spawnersTruncated: Boolean = false,
+    /** Creatures sharing its spawners — the detail route only. */
+    val alsoHere: List<AtlasCreatureDto> = emptyList(),
+)
+
+/**
+ * One named place a creature spawns in, already aggregated across its spawners.
+ *
+ * [label] is the server's point-in-rect resolution of raw coordinates ("Shrines",
+ * "Isamu-Jima", "Yew"), falling back to the nearest landmark and finally
+ * "Wilderness" — turning a list of coordinates into an answer.
+ */
+@Serializable
+data class AtlasPlaceDto(
+    val facet: String? = null,
+    val label: String? = null,
+    /** Spawners in this place. */
+    val spawners: Int? = null,
+    /** How many can be alive at once here, summed across those spawners. */
+    val maxAlive: Int? = null,
+)
+
+/**
+ * One spawn point.
+ *
+ * **[minDelay] / [maxDelay] are SECONDS**, normalised by the server's parser.
+ * XmlSpawner writes them in minutes *except* when a delay doesn't divide into whole
+ * minutes, flagging that per record — so the raw file has `5` meaning five minutes on
+ * one spawner and five seconds on the next, both plausible. The API and this client
+ * carry seconds throughout.
+ */
+@Serializable
+data class AtlasSpawnerDto(
+    val id: Long? = null,
+    val facet: String? = null,
+    val name: String? = null,
+    val x: Int? = null,
+    val y: Int? = null,
+    val maxCount: Int? = null,
+    val minDelay: Int? = null,
+    val maxDelay: Int? = null,
+    val region: String? = null,
+    val landmark: String? = null,
+    /** The server's own "Despise, Felucca" style placement label. */
+    val label: String? = null,
+)
+
+/** A page of creature search results (`GET /public/atlas/creatures`). */
+@Serializable
+data class AtlasCreaturePageDto(
+    val creatures: List<AtlasCreatureDto> = emptyList(),
+    val total: Int = 0,
+    val limit: Int? = null,
+    val offset: Int? = null,
+)
+
+/** When the atlas was last derived from the shard's data files, and what it holds. */
+@Serializable
+data class AtlasMetaDto(
+    val importedAt: String? = null,
+    val generatedAt: String? = null,
+    val counts: Map<String, Int> = emptyMap(),
+    val facets: List<String> = emptyList(),
+)

app/src/main/java/com/runicgateway/app/data/api/dto/ShardDto.kt

@@ -15,11 +15,36 @@ import kotlinx.serialization.json.JsonObject
  * `*.update` frames on `/public/shard/stream` decode into these same DTOs.
  */
 
+/**
+ * Which shard surfaces this caller may reach (`GET /public/shard/features`), plus
+ * the audience rung they resolved to.
+ *
+ * Every shard-derived feature is admin-configurable — it can be switched off or
+ * raised to a higher rung — so the menu cannot be a static list (PLAN.md §5, M11).
+ * [level] is the SERVER's answer on the `anonymous → logged_in → player → staff →
+ * admin` ladder and is authoritative: don't re-derive a rung from the session role,
+ * since `player` means *a linked game account* and staff always satisfy it.
+ *
+ * The response reports only what the caller can see, so the list itself never
+ * discloses a feature they're gated out of.
+ */
+@Serializable
+data class ShardFeaturesDto(
+    val level: String? = null,
+    val features: List<String> = emptyList(),
+)
+
 /**
  * A game actor (player/leader/governor) as embedded in board payloads. Per the wire
  * spec (`docs/link/INTEGRATION.md` §1), in-game [serial]s are opaque hex-string keys
- * (e.g. `"0x1A2B"`), never numbers, and [webId] is the linked site-user id as a
+ * (e.g. `"0x1A2B"`), never numbers.
- * string (e.g. `"9931"`) — both are decoded as strings, not parsed.
+ *
+ * [acct] and [webId] are **locked to the admin rung** by the visibility framework
+ * (`docs/link/v3.md` §3.4 rule 1) — a game account name and a linked site-user id are
+ * not in-game-visible the way a character name is, so they are stripped from every
+ * response below `admin` and no admin setting can loosen that. The fields stay
+ * declared because an admin session does receive them; nothing below one should
+ * expect a value.
  */
 @Serializable
 data class ActorDto(

app/src/main/java/com/runicgateway/app/data/repository/ConnectionRepository.kt

@@ -28,6 +28,7 @@ class ConnectionRepository @Inject constructor(
     private val baseUrlHolder: BaseUrlHolder,
     private val sessionManager: SessionManager,
     private val trustTokenStore: TrustTokenStore,
+    private val shardFeaturesRepository: ShardFeaturesRepository,
     private val pushManager: com.runicgateway.app.core.push.PushManager,
     private val config: com.runicgateway.app.core.AppConfig,
 ) {
@@ -111,6 +112,10 @@ class ConnectionRepository @Inject constructor(
         // The trust token is bound to the old host — drop it so we don't replay it
         // against a different shard (it survives a plain logout, but not a host switch).
         trustTokenStore.clear()
+        // Shard visibility is the OLD host's answer. Sign-out alone would not clear it:
+        // a switch between two signed-out hosts changes no session, so nothing else
+        // invalidates the cache and the new shard would inherit the old one's menu.
+        shardFeaturesRepository.invalidate()
         prefs.clear()
         baseUrlHolder.set(null)
     }

app/src/main/java/com/runicgateway/app/data/repository/ShardFeaturesRepository.kt

@@ -0,0 +1,111 @@
+/*
+ * SPDX-License-Identifier: GPL-3.0-or-later
+ */
+package com.runicgateway.app.data.repository
+
+import com.runicgateway.app.core.result.ApiResult
+import com.runicgateway.app.core.result.safeApiCall
+import com.runicgateway.app.data.api.PublicApi
+import kotlinx.coroutines.flow.MutableStateFlow
+import kotlinx.coroutines.flow.StateFlow
+import kotlinx.coroutines.flow.asStateFlow
+import kotlinx.coroutines.sync.Mutex
+import kotlinx.coroutines.sync.withLock
+import javax.inject.Inject
+import javax.inject.Singleton
+
+/**
+ * Which shard surfaces the current viewer may reach, from
+ * `GET /public/shard/features` (PLAN.md §5, §9 M11).
+ *
+ * Every shard-derived feature is admin-configurable — it can be switched off, or its
+ * audience raised above the caller's rung — so shard navigation can no longer be a
+ * static list gated on the session role alone. [level] is the server's own answer on
+ * the `anonymous → logged_in → player → staff → admin` ladder; the app does not
+ * re-derive it.
+ *
+ * **This is presentation only.** The gate is server-side: a disabled feature `404`s
+ * and an out-of-rung one `403`s whether or not the entry was rendered. That is why an
+ * unknown answer deliberately **fails open** — see [ShardFeatures] and [canSee].
+ */
+@Singleton
+class ShardFeaturesRepository @Inject constructor(
+    private val api: PublicApi,
+) {
+    private val _features = MutableStateFlow<ShardFeatures?>(null)
+
+    /** The current answer, or `null` while it is unknown (in flight, or the lookup failed). */
+    val features: StateFlow<ShardFeatures?> = _features.asStateFlow()
+
+    // Serializes concurrent refreshes: the shell refreshes on every session change,
+    // and two overlapping loads would race to publish.
+    private val mutex = Mutex()
+
+    /**
+     * Re-resolve the visible set. Called on every session change (sign-in, sign-out,
+     * a role revalidation that actually changed the user), because the answer is
+     * per-viewer.
+     *
+     * A failed lookup clears the cache rather than keeping a stale one: falling back
+     * to "show everything" is the safe direction here, since the server still gates
+     * every call.
+     */
+    suspend fun refresh() = mutex.withLock {
+        _features.value = when (val result = safeApiCall { api.getShardFeatures() }) {
+            is ApiResult.Ok -> ShardFeatures(
+                level = result.data.level,
+                visible = result.data.features.toSet(),
+            )
+            // Includes the 404 an older, pre-Protocol-3.0 website returns for this
+            // route — that site has no visibility framework, so "unknown" is exactly
+            // the right answer and the menu behaves as it did before M11.
+            else -> null
+        }
+    }
+
+    /**
+     * Drop the cached answer. Called on a Settings → Server switch: the features
+     * belong to the host that reported them, and a switch between two signed-out
+     * hosts changes no session, so nothing else would invalidate them.
+     */
+    fun invalidate() {
+        _features.value = null
+    }
+}
+
+/**
+ * The resolved visibility answer for one viewer: the rung the server placed them on
+ * and the shard features they may reach.
+ */
+data class ShardFeatures(
+    val level: String?,
+    val visible: Set<String>,
+)
+
+/**
+ * True when [feature] may be shown — **or when the answer isn't known yet**.
+ *
+ * The fail-open default is deliberate and matches the web client (`lib/useShardFeatures.js`):
+ * the server gates every call regardless, so the cost of guessing wrong is a link that
+ * briefly `403`s, while the cost of guessing the other way is a navigation drawer that
+ * flickers its entries in on every cold start.
+ */
+fun canSee(features: ShardFeatures?, feature: String): Boolean =
+    features == null || feature in features.visible
+
+/** Feature names as the website's `shardVisibility.js` `FEATURES` map spells them. */
+object ShardFeature {
+    const val STATUS = "status"
+    const val ACTIVITY = "activity"
+    const val CHAMPS = "champs"
+    const val GUILDS = "guilds"
+    const val GOVERNORS = "governors"
+    const val HOUSES = "houses"
+    const val PRESENCE = "presence"
+
+    // Added by Protocol 3.0.
+    const val RULESET = "ruleset"
+    const val ATLAS = "atlas"
+    const val LEADERBOARDS = "leaderboards"
+    const val MARKET = "market"
+}

app/src/main/java/com/runicgateway/app/data/repository/ShardRepository.kt

@@ -8,6 +8,8 @@ import com.runicgateway.app.core.net.ShardStreamEvent
 import com.runicgateway.app.core.result.ApiResult
 import com.runicgateway.app.core.result.safeApiCall
 import com.runicgateway.app.data.api.PublicApi
+import com.runicgateway.app.data.api.dto.AtlasCreatureDto
+import com.runicgateway.app.data.api.dto.AtlasCreaturePageDto
 import com.runicgateway.app.data.api.dto.ChampDto
 import com.runicgateway.app.data.api.dto.EconomySampleDto
 import com.runicgateway.app.data.api.dto.FeedEventDto
@@ -15,8 +17,13 @@ import com.runicgateway.app.data.api.dto.GovernorDto
 import com.runicgateway.app.data.api.dto.GovernorTermDto
 import com.runicgateway.app.data.api.dto.GuildDto
 import com.runicgateway.app.data.api.dto.HouseDto
+import com.runicgateway.app.data.api.dto.MarketMetaDto
+import com.runicgateway.app.data.api.dto.MarketPageDto
+import com.runicgateway.app.data.api.dto.MarketVendorDto
 import com.runicgateway.app.data.api.dto.OnlineStaffDto
+import com.runicgateway.app.data.api.dto.PointsBoardDto
 import com.runicgateway.app.data.api.dto.PresenceDto
+import com.runicgateway.app.data.api.dto.RulesetDto
 import com.runicgateway.app.data.api.dto.ShardStatusDto
 import kotlinx.coroutines.flow.Flow
 import kotlinx.serialization.KSerializer
@@ -62,6 +69,59 @@ class ShardRepository @Inject constructor(
 
     suspend fun houses(): ApiResult<List<HouseDto>> = safeApiCall { api.getShardHouses() }
 
+    // ── Protocol 3.0 shard content (§9 M11) ──────────────────────────────
+    //
+    // All four sit behind `requireFeature`, so a 404/403 here is "this shard doesn't
+    // publish it" rather than a fault — see `toShardUiState()`.
+
+    /** The shard ruleset, or `Ok(null)` when the shard has never published one. */
+    suspend fun ruleset(): ApiResult<RulesetDto?> = safeApiCall { api.getShardRuleset() }
+
+    suspend fun pointsBoards(): ApiResult<List<PointsBoardDto>> = safeApiCall { api.getShardPoints() }
+
+    suspend fun pointsBoard(system: String): ApiResult<PointsBoardDto> =
+        safeApiCall { api.getShardPointsBoard(system) }
+
+    suspend fun market(
+        query: String? = null,
+        map: String? = null,
+        region: String? = null,
+        sort: String = SORT_PRICE_ASC,
+        limit: Int = MARKET_PAGE,
+        offset: Int = 0,
+    ): ApiResult<MarketPageDto> = safeApiCall {
+        api.getShardMarket(
+            query = query?.takeIf { it.isNotBlank() },
+            map = map?.takeIf { it.isNotBlank() },
+            region = region?.takeIf { it.isNotBlank() },
+            sort = sort,
+            limit = limit,
+            offset = offset,
+        )
+    }
+
+    suspend fun marketMeta(): ApiResult<MarketMetaDto> = safeApiCall { api.getShardMarketMeta() }
+
+    suspend fun marketVendor(serial: String): ApiResult<MarketVendorDto> =
+        safeApiCall { api.getShardMarketVendor(serial) }
+
+    suspend fun atlasCreatures(
+        query: String? = null,
+        facet: String? = null,
+        limit: Int = ATLAS_PAGE,
+        offset: Int = 0,
+    ): ApiResult<AtlasCreaturePageDto> = safeApiCall {
+        api.getAtlasCreatures(
+            query = query?.takeIf { it.isNotBlank() },
+            facet = facet?.takeIf { it.isNotBlank() },
+            limit = limit,
+            offset = offset,
+        )
+    }
+
+    suspend fun atlasCreature(slug: String): ApiResult<AtlasCreatureDto> =
+        safeApiCall { api.getAtlasCreature(slug) }
+
     // ── Live stream ──────────────────────────────────────────────────────
     /** The shared public SSE feed (safe kinds only), reconnecting with backoff (§7). */
     fun liveEvents(): Flow<ShardStreamEvent> = stream.events()
@@ -73,9 +133,27 @@ class ShardRepository @Inject constructor(
     fun governorFrame(obj: JsonObject): GovernorDto? = decode(obj, GovernorDto.serializer())
     fun presenceFrame(obj: JsonObject): PresenceDto? = decode(obj, PresenceDto.serializer())
 
+    // Protocol 3.0 frames. `world.ruleset` and `points.board` ride the public stream by
+    // default; `vendor.listing` does NOT — the market feature ships with its SSE fan-out
+    // disabled (a live firehose of vendor inventories would be the site's biggest
+    // bandwidth consumer), so the market screen is a plain paginated read and must never
+    // wait on a frame.
+    fun rulesetFrame(obj: JsonObject): RulesetDto? = decode(obj, RulesetDto.serializer())
+    fun pointsBoardFrame(obj: JsonObject): PointsBoardDto? = decode(obj, PointsBoardDto.serializer())
+
     private fun <T> decode(obj: JsonObject, serializer: KSerializer<T>): T? = try {
         json.decodeFromJsonElement(serializer, obj)
     } catch (_: Exception) {
         null
     }
+
+    companion object {
+        const val SORT_PRICE_ASC = "price_asc"
+        const val SORT_PRICE_DESC = "price_desc"
+        const val SORT_RECENT = "recent"
+
+        /** The server caps `limit` at 100; stay well under it on a phone. */
+        const val MARKET_PAGE = 50
+        const val ATLAS_PAGE = 50
+    }
 }

app/src/main/java/com/runicgateway/app/ui/RunicApp.kt

@@ -72,10 +72,16 @@ import com.runicgateway.app.ui.player.CharactersScreen
 import com.runicgateway.app.ui.player.MyHousesScreen
 import com.runicgateway.app.ui.player.VendorsScreen
 import com.runicgateway.app.ui.session.SessionViewModel
+import com.runicgateway.app.ui.shard.AtlasCreatureScreen
+import com.runicgateway.app.ui.shard.AtlasScreen
 import com.runicgateway.app.ui.shard.ChampsScreen
 import com.runicgateway.app.ui.shard.GovernorsScreen
 import com.runicgateway.app.ui.shard.GuildsScreen
 import com.runicgateway.app.ui.shard.HousesScreen
+import com.runicgateway.app.ui.shard.LeaderboardsScreen
+import com.runicgateway.app.ui.shard.MarketScreen
+import com.runicgateway.app.ui.shard.MarketVendorScreen
+import com.runicgateway.app.ui.shard.RulesScreen
 import com.runicgateway.app.ui.shard.ShardBoard
 import com.runicgateway.app.ui.shard.ShardScreen
 import com.runicgateway.app.ui.wiki.WikiPageScreen
@@ -85,6 +91,9 @@ import kotlinx.coroutines.launch
 /** Destinations that show the drawer (hamburger); others show a back arrow. */
 private val TOP_LEVEL_ROUTES = setOf(
     Routes.HOME, Routes.NEWS, Routes.WIKI, Routes.SHARD, Routes.CONTACT, Routes.PAGE, Routes.ACCOUNT,
+    // Protocol 3.0 content screens are drawer destinations, so the drawer gesture works
+    // on them too (M11).
+    Routes.SHARD_RULES, Routes.SHARD_LEADERBOARDS, Routes.SHARD_MARKET, Routes.ATLAS,
     Routes.NOTIFICATIONS,
     Routes.PLAYER_CHARACTERS, Routes.PLAYER_VENDORS, Routes.PLAYER_HOUSES,
     Routes.ADMIN_DASHBOARD, Routes.ADMIN_CONTENT, Routes.ADMIN_MODERATION, Routes.ADMIN_SUPPORT,
@@ -112,6 +121,8 @@ fun RunicApp(
     val scope = rememberCoroutineScope()
 
     val session by sessionViewModel.session.collectAsStateWithLifecycle()
+    // What this shard publishes, independently of who the caller is (§5, M11).
+    val shardFeatures by sessionViewModel.shardFeatures.collectAsStateWithLifecycle()
 
     // Re-validate the cached role each time the app returns to the foreground (§4.3).
     LifecycleResumeEffect(Unit) {
@@ -132,7 +143,7 @@ fun RunicApp(
     val backStackEntry by navController.currentBackStackEntryAsState()
     val currentRoute = backStackEntry?.destination?.route
     val isTopLevel = currentRoute in TOP_LEVEL_ROUTES
-    val entries = visibleEntries(APP_MENU, session)
+    val entries = visibleEntries(APP_MENU, session, shardFeatures)
 
     ModalNavigationDrawer(
         drawerState = drawerState,
@@ -303,6 +314,30 @@ private fun RunicNavHost(
         composable(Routes.SHARD_GUILDS) { GuildsScreen() }
         composable(Routes.SHARD_GOVERNORS) { GovernorsScreen() }
         composable(Routes.SHARD_HOUSES) { HousesScreen() }
+
+        // Protocol 3.0 shard content (M11). Each screen self-reports "not published
+        // here" from its own 404/403, so a deep link to a gated feature still lands on
+        // an honest answer even though the menu hides the entry.
+        composable(Routes.SHARD_RULES) { RulesScreen() }
+        composable(Routes.SHARD_LEADERBOARDS) { LeaderboardsScreen(brand = brand) }
+        composable(Routes.SHARD_MARKET) {
+            MarketScreen(onOpenVendor = { serial -> navController.navigate(Routes.marketVendor(serial)) })
+        }
+        composable(
+            route = Routes.SHARD_MARKET_VENDOR,
+            arguments = listOf(navArgument(Routes.Args.SERIAL) { type = NavType.StringType }),
+        ) { entry ->
+            MarketVendorScreen(serial = entry.arguments?.getString(Routes.Args.SERIAL).orEmpty())
+        }
+        composable(Routes.ATLAS) {
+            AtlasScreen(onOpenCreature = { slug -> navController.navigate(Routes.atlasCreature(slug)) })
+        }
+        composable(
+            route = Routes.ATLAS_CREATURE,
+            arguments = listOf(navArgument(Routes.Args.SLUG) { type = NavType.StringType }),
+        ) { entry ->
+            AtlasCreatureScreen(slug = entry.arguments?.getString(Routes.Args.SLUG).orEmpty())
+        }
         composable(Routes.WIKI) {
             WikiScreen(onOpenPage = { slug -> navController.navigate(Routes.wikiPage(slug)) })
         }

app/src/main/java/com/runicgateway/app/ui/UiState.kt

@@ -34,6 +34,13 @@ enum class ErrorKind {
     /** Shard/sidecar down (503) — shard reads only; render as offline (§6.3). */
     SHARD_OFFLINE,
 
+    /**
+     * This shard doesn't publish the surface, or doesn't publish it to this viewer
+     * (M11). Distinct from [NOT_FOUND] and [SHARD_OFFLINE]: the site is up, the shard
+     * may well be up, and retrying changes nothing — an admin decides this.
+     */
+    FEATURE_UNAVAILABLE,
+
     /** Any other non-2xx server response. */
     SERVER,
 }
@@ -52,3 +59,27 @@ fun <T> ApiResult<T>.toUiState(): UiState<T> = when (this) {
         httpStatus = status,
     )
 }
+
+/**
+ * [toUiState] for a **shard-derived** read, where `404` carries a second meaning.
+ *
+ * The website's `requireFeature` gate answers `404` when a feature is switched off —
+ * deliberately, so the response doesn't disclose that the surface exists — and `403`
+ * when it's on but the caller is below its audience rung (`docs/link/v3.md` §3.6).
+ * On these routes a `404` therefore almost never means "no such thing"; it means this
+ * shard doesn't publish it. Rendering "couldn't be found" with a retry button would
+ * invite the user to retry something an admin controls.
+ *
+ * Kept as a separate mapper rather than folded into [toUiState] because both statuses
+ * mean something else off the shard surface: `404` is a genuinely missing item (a
+ * deleted post, an unknown wiki slug) and `403` is an ownership or role refusal on a
+ * player or admin route, which is not an admin's visibility setting.
+ */
+fun <T> ApiResult<T>.toShardUiState(): UiState<T> = when (this) {
+    is ApiResult.HttpError -> if (status == 403 || status == 404) {
+        UiState.Error(ErrorKind.FEATURE_UNAVAILABLE, httpStatus = status)
+    } else {
+        toUiState()
+    }
+    else -> toUiState()
+}

app/src/main/java/com/runicgateway/app/ui/components/StateViews.kt

@@ -36,6 +36,10 @@ fun LoadingView(modifier: Modifier = Modifier) {
 /**
  * Whole-screen error state with a friendly, kind-specific message and a Retry
  * button (§7). Copy is resolved from string resources so it stays localizable.
+ *
+ * [ErrorKind.FEATURE_UNAVAILABLE] renders **without** the button: an admin decides
+ * whether the shard publishes that surface, so retrying cannot change the answer and
+ * offering it would read as a transient failure the user could wait out (M11).
  */
 @Composable
 fun ErrorView(
@@ -53,6 +57,7 @@ fun ErrorView(
             style = MaterialTheme.typography.bodyLarge,
             textAlign = TextAlign.Center,
         )
+        if (isRetryable(kind)) {
             Button(
                 onClick = onRetry,
                 modifier = Modifier.padding(top = 16.dp).width(160.dp),
@@ -60,8 +65,12 @@ fun ErrorView(
                 Text(stringResource(R.string.action_retry))
             }
         }
+    }
 }
 
+/** Whether retrying this failure could plausibly succeed. Pure, so it is unit-tested. */
+fun isRetryable(kind: ErrorKind): Boolean = kind != ErrorKind.FEATURE_UNAVAILABLE
+
 /** Centered informational message for an empty list (§7). */
 @Composable
 fun EmptyView(message: String, modifier: Modifier = Modifier) {
@@ -83,5 +92,6 @@ private fun errorMessageRes(kind: ErrorKind): Int = when (kind) {
     ErrorKind.NOT_FOUND -> R.string.error_not_found
     ErrorKind.RATE_LIMITED -> R.string.error_rate_limited
     ErrorKind.SHARD_OFFLINE -> R.string.error_shard_offline
+    ErrorKind.FEATURE_UNAVAILABLE -> R.string.error_feature_unavailable
     ErrorKind.SERVER -> R.string.error_server
 }

app/src/main/java/com/runicgateway/app/ui/navigation/Menu.kt

@@ -6,6 +6,9 @@ package com.runicgateway.app.ui.navigation
 import androidx.annotation.StringRes
 import com.runicgateway.app.R
 import com.runicgateway.app.core.auth.Session
+import com.runicgateway.app.data.repository.ShardFeature
+import com.runicgateway.app.data.repository.ShardFeatures
+import com.runicgateway.app.data.repository.canSee
 
 /**
  * One shared, declarative, access-level navigation definition (PLAN.md §5): a
@@ -40,6 +43,15 @@ data class MenuEntry(
     val route: String,
     @param:StringRes val labelRes: Int,
     val access: MenuAccess = MenuAccess.PUBLIC,
+    /**
+     * For a shard-derived surface, the visibility feature it belongs to (M11).
+     *
+     * Session role is not the only gate on these: an admin can switch a feature off
+     * or raise its audience above the caller's rung, so the entry is filtered by
+     * `GET /public/shard/features` as well as by [access]. `null` means the entry
+     * isn't shard-derived and only [access] applies.
+     */
+    val feature: String? = null,
 )
 
 /**
@@ -51,7 +63,13 @@ val APP_MENU: List<MenuEntry> = listOf(
     MenuEntry(Routes.HOME, R.string.menu_home),
     MenuEntry(Routes.NEWS, R.string.menu_news),
     MenuEntry(Routes.WIKI, R.string.menu_wiki),
-    MenuEntry(Routes.SHARD, R.string.menu_shard),
+    MenuEntry(Routes.SHARD, R.string.menu_shard, feature = ShardFeature.STATUS),
+    // Protocol 3.0 shard content (M11). Each hides when the shard doesn't publish it,
+    // which for a brand-new install is every one of them until the plugin has swept.
+    MenuEntry(Routes.SHARD_RULES, R.string.menu_rules, feature = ShardFeature.RULESET),
+    MenuEntry(Routes.ATLAS, R.string.menu_atlas, feature = ShardFeature.ATLAS),
+    MenuEntry(Routes.SHARD_LEADERBOARDS, R.string.menu_leaderboards, feature = ShardFeature.LEADERBOARDS),
+    MenuEntry(Routes.SHARD_MARKET, R.string.menu_market, feature = ShardFeature.MARKET),
     MenuEntry(Routes.page("about"), R.string.menu_about),
     MenuEntry(Routes.CONTACT, R.string.menu_contact),
     MenuEntry(Routes.ACCOUNT, R.string.menu_account, MenuAccess.SIGNED_IN),
@@ -67,16 +85,28 @@ val APP_MENU: List<MenuEntry> = listOf(
 )
 
 /**
- * The entries the given [session] may see. Pure + side-effect-free so the access
+ * The entries the given [session] may see, given the shard [features] it may reach.
- * gating is unit-tested without Compose.
+ * Pure + side-effect-free so the gating is unit-tested without Compose.
+ *
+ * Two independent filters, and both must pass:
+ *
+ *  - [MenuEntry.access] against the session — who the caller is.
+ *  - [MenuEntry.feature] against the shard's live visibility config — what this shard
+ *    publishes at all (M11). `null` [features] means the answer isn't known yet and
+ *    every shard entry shows; see [canSee] for why that direction is deliberate.
  */
-fun visibleEntries(entries: List<MenuEntry>, session: Session): List<MenuEntry> =
+fun visibleEntries(
+    entries: List<MenuEntry>,
+    session: Session,
+    features: ShardFeatures? = null,
+): List<MenuEntry> =
     entries.filter { entry ->
-        when (entry.access) {
+        val allowedByRole = when (entry.access) {
             MenuAccess.PUBLIC -> true
             MenuAccess.SIGNED_IN -> session is Session.SignedIn
             MenuAccess.PLAYER -> session is Session.SignedIn && (session.user.isPlayer || session.user.isStaff)
             MenuAccess.STAFF -> session is Session.SignedIn && session.user.isStaff
             MenuAccess.MODERATOR -> session is Session.SignedIn && session.user.isModerator
         }
+        allowedByRole && (entry.feature == null || canSee(features, entry.feature))
     }

app/src/main/java/com/runicgateway/app/ui/navigation/Routes.kt

@@ -34,6 +34,18 @@ object Routes {
     const val SHARD_GOVERNORS = "shard/governors"
     const val SHARD_HOUSES = "shard/houses"
 
+    /**
+     * Protocol 3.0 shard content (M11), each gated by its own visibility feature. The
+     * atlas is not under `shard/` on the wire (`/public/atlas`) because it is static
+     * content rather than live state, but it is a peer of these in the app's nav.
+     */
+    const val SHARD_RULES = "shard/rules"
+    const val SHARD_LEADERBOARDS = "shard/leaderboards"
+    const val SHARD_MARKET = "shard/market"
+    const val SHARD_MARKET_VENDOR = "shard/market/{serial}"
+    const val ATLAS = "atlas"
+    const val ATLAS_CREATURE = "atlas/{slug}"
+
     /** Player game-data groups (§6.3, player-only). Distinct from the public shard boards. */
     const val PLAYER_CHARACTERS = "player/characters"
     const val PLAYER_VENDORS = "player/vendors"
@@ -72,6 +84,12 @@ object Routes {
     /** The character-sheet route for an in-game serial (e.g. "0x24C"). */
     fun playerChar(serial: String) = "player/char/$serial"
 
+    /** One player vendor's shop, by in-game (hex) serial. */
+    fun marketVendor(serial: String) = "shard/market/$serial"
+
+    /** One creature's atlas page, by slug. */
+    fun atlasCreature(slug: String) = "atlas/$slug"
+
     /**
      * The in-app destination a tapped push notification deep-links to (§11, M7
      * Part 2 work item 7). Maps a stream id to the screen that shows its content;

app/src/main/java/com/runicgateway/app/ui/player/CharacterSheetScreen.kt

@@ -26,6 +26,7 @@ import androidx.compose.ui.unit.dp
 import androidx.hilt.navigation.compose.hiltViewModel
 import androidx.lifecycle.compose.collectAsStateWithLifecycle
 import com.runicgateway.app.R
+import com.runicgateway.app.data.api.dto.CharPointsDto
 import com.runicgateway.app.data.api.dto.CharProfileDto
 import com.runicgateway.app.data.api.dto.CharStatsDto
 import com.runicgateway.app.data.api.dto.EquipmentDto
@@ -71,6 +72,7 @@ private fun CharacterSheet(char: CharProfileDto, modifier: Modifier = Modifier)
         char.stats?.let { AttributesBlock(it) }
         char.stats?.resist?.let { ResistancesBlock(it) }
         SkillsBlock(char.skills)
+        PointsBlock(displayPoints(char))
         EquipmentBlock(char.equipment)
     }
 }
@@ -215,6 +217,47 @@ private fun SkillsBlock(skills: List<SkillDto>) {
     }
 }
 
+/**
+ * Loyalty & points standings (Protocol 3.0 §7.3). Renders nothing at all for a
+ * character that has earned nothing anywhere, which is a normal state.
+ *
+ * Only a system with a real cap gets a meter: an uncapped score
+ * ([CharPointsDto.maxPoints] `0`, the common case on a real shard) has nothing to be
+ * a fraction of, and a full-width bar would imply a completion that doesn't exist.
+ */
+@Composable
+private fun PointsBlock(points: List<CharPointsDto>) {
+    if (points.isEmpty()) return
+    SheetCard(R.string.player_char_points) {
+        points.forEach { entry ->
+            val cap = entry.cap
+            val score = entry.points ?: 0L
+            Column(Modifier.padding(vertical = 5.dp)) {
+                Row(
+                    Modifier.fillMaxWidth().padding(bottom = 4.dp),
+                    horizontalArrangement = Arrangement.SpaceBetween,
+                ) {
+                    Text(
+                        // `rank` is absent unless the shard opts in; absent and
+                        // "unranked" are different, so the suffix only appears when sent.
+                        entry.rank?.let { stringResource(R.string.player_char_points_ranked, pointsLabel(entry), it) }
+                            ?: pointsLabel(entry),
+                        style = MaterialTheme.typography.labelMedium,
+                        color = MaterialTheme.colorScheme.onSurfaceVariant,
+                    )
+                    Text(
+                        cap?.let { stringResource(R.string.player_char_points_of, score, it) } ?: score.toString(),
+                        style = MaterialTheme.typography.labelMedium,
+                        color = MaterialTheme.colorScheme.onSurfaceVariant,
+                        fontWeight = FontWeight.Medium,
+                    )
+                }
+                if (cap != null) StatBar((score.toDouble() / cap).coerceIn(0.0, 1.0).toFloat())
+            }
+        }
+    }
+}
+
 @OptIn(ExperimentalLayoutApi::class)
 @Composable
 private fun EquipmentBlock(equipment: List<EquipmentDto>) {
@@ -223,7 +266,7 @@ private fun EquipmentBlock(equipment: List<EquipmentDto>) {
         equipment.forEach { item ->
             Column(Modifier.fillMaxWidth().padding(vertical = 6.dp)) {
                 Text(
-                    item.layer ?: stringResource(R.string.player_char_item),
+                    item.label ?: stringResource(R.string.player_char_item),
                     style = MaterialTheme.typography.bodyLarge,
                 )
                 val meta = listOfNotNull(
@@ -266,23 +309,58 @@ internal fun formatSkill(value: Double): String =
 /**
  * The human-readable title chips for a [TitlesDto] (parity with the website's
  * `CharacterSheet.jsx#displayTitles`): fame/karma, skill title, and the selected
- * reward title — but only if it is a literal string, not a bare cliloc number
+ * reward title.
- * (the app ships no cliloc table). De-duplicated, blanks dropped.
+ *
+ * Reward entries arrive as either a literal or a cliloc number in string form. The
+ * server now resolves the numeric ones into `rewardResolved`, a **parallel** array
+ * (see `docs/website/CLILOCS.md`), so the mapping below is index-preserving: an entry
+ * that didn't resolve becomes null and is skipped, but must not shift the `selected`
+ * index onto its neighbour. A number with no resolution is still skipped rather than
+ * rendered as a raw id, which is also the whole behavior on a shard that configures
+ * no cliloc table.
+ *
+ * Falling back to the first title that resolved (rather than showing nothing) matters
+ * when the *selected* one is the unresolved entry. De-duplicated, blanks dropped.
  */
 internal fun displayTitles(titles: TitlesDto?): List<String> {
     if (titles == null) return emptyList()
     val out = mutableListOf<String>()
     titles.fameKarma?.let { out.add(it) }
     titles.skill?.let { out.add(it) }
-    val reward = titles.reward
+    val reward = titles.reward.mapIndexed { i, raw ->
-    val sel = titles.selected ?: -1
+        titles.rewardResolved.getOrNull(i)
-    val candidate = when {
+            ?: raw.takeUnless { it.isBlank() || it.all(Char::isDigit) }
-        sel in reward.indices -> reward[sel]
-        else -> reward.firstOrNull { it.isNotBlank() && !it.all(Char::isDigit) }
     }
-    if (candidate != null && candidate.isNotBlank() && !candidate.all(Char::isDigit)) out.add(candidate)
+    val candidate = reward.getOrNull(titles.selected ?: -1) ?: reward.firstNotNullOfOrNull { it }
+    if (!candidate.isNullOrBlank()) out.add(candidate)
     return out.filter { it.isNotBlank() }.distinct()
 }
 
+/**
+ * A point system's display name: the shard's own [CharPointsDto.nameString] when it
+ * has one, else the humanised `PointsType` key.
+ *
+ * The fallback is the PRIMARY path, not a defensive nicety — most systems name
+ * themselves with a cliloc, so `nameString` comes back null for four of five boards
+ * on a real shard (`docs/link/v3.md` §7.5). Parity with the website's
+ * `humanisePoints`.
+ */
+internal fun pointsLabel(entry: CharPointsDto): String {
+    entry.nameString?.takeIf { it.isNotBlank() }?.let { return it }
+    val key = entry.system.orEmpty()
+    return key
+        .replace(Regex("([a-z0-9])([A-Z])"), "$1 $2")
+        .replaceFirstChar { it.uppercaseChar() }
+}
+
+/**
+ * The points block, best standing first, dropping systems the character has no score
+ * in. Guarded for an older shard plugin that sends no `points` block at all.
+ */
+internal fun displayPoints(char: CharProfileDto): List<CharPointsDto> =
+    char.points
+        .filter { (it.points ?: 0L) > 0L }
+        .sortedByDescending { it.points ?: 0L }
+
 private fun jsonText(element: kotlinx.serialization.json.JsonElement): String =
     runCatching { element.jsonPrimitive.content }.getOrElse { element.toString() }

app/src/main/java/com/runicgateway/app/ui/session/SessionViewModel.kt

@@ -8,6 +8,8 @@ import androidx.lifecycle.viewModelScope
 import com.runicgateway.app.core.auth.Session
 import com.runicgateway.app.core.auth.SessionManager
 import com.runicgateway.app.data.repository.AuthRepository
+import com.runicgateway.app.data.repository.ShardFeatures
+import com.runicgateway.app.data.repository.ShardFeaturesRepository
 import dagger.hilt.android.lifecycle.HiltViewModel
 import kotlinx.coroutines.flow.StateFlow
 import kotlinx.coroutines.launch
@@ -23,10 +25,28 @@ import javax.inject.Inject
 class SessionViewModel @Inject constructor(
     sessionManager: SessionManager,
     private val authRepository: AuthRepository,
+    shardFeaturesRepository: ShardFeaturesRepository,
 ) : ViewModel() {
 
     val session: StateFlow<Session> = sessionManager.state
 
+    /**
+     * Which shard features this viewer may reach (M11). Held here beside [session]
+     * because it answers the same question for the same consumer: what the shared
+     * menu reveals. Role and feature config are independent gates — see
+     * [com.runicgateway.app.ui.navigation.visibleEntries].
+     */
+    val shardFeatures: StateFlow<ShardFeatures?> = shardFeaturesRepository.features
+
+    init {
+        // The answer is per-viewer, so it is re-resolved on every session change.
+        // A StateFlow conflates equal values, so a resume revalidation that returns
+        // the same user does not refetch — only a real sign-in/out/role change does.
+        viewModelScope.launch {
+            session.collect { shardFeaturesRepository.refresh() }
+        }
+    }
+
     /** Re-validate the cached role against the backend on app resume. */
     fun revalidate() {
         viewModelScope.launch { authRepository.revalidate() }

app/src/main/java/com/runicgateway/app/ui/shard/AtlasScreen.kt

@@ -0,0 +1,301 @@
+/*
+ * SPDX-License-Identifier: GPL-3.0-or-later
+ */
+package com.runicgateway.app.ui.shard
+
+import androidx.compose.foundation.clickable
+import androidx.compose.foundation.layout.Arrangement
+import androidx.compose.foundation.layout.Column
+import androidx.compose.foundation.layout.ExperimentalLayoutApi
+import androidx.compose.foundation.layout.FlowRow
+import androidx.compose.foundation.layout.Row
+import androidx.compose.foundation.layout.fillMaxSize
+import androidx.compose.foundation.layout.fillMaxWidth
+import androidx.compose.foundation.layout.padding
+import androidx.compose.foundation.lazy.LazyColumn
+import androidx.compose.foundation.lazy.items
+import androidx.compose.foundation.text.KeyboardActions
+import androidx.compose.foundation.text.KeyboardOptions
+import androidx.compose.material3.Card
+import androidx.compose.material3.MaterialTheme
+import androidx.compose.material3.OutlinedTextField
+import androidx.compose.material3.Text
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.LaunchedEffect
+import androidx.compose.runtime.getValue
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.res.pluralStringResource
+import androidx.compose.ui.res.stringResource
+import androidx.compose.ui.text.input.ImeAction
+import androidx.compose.ui.text.style.TextOverflow
+import androidx.compose.ui.unit.dp
+import androidx.hilt.navigation.compose.hiltViewModel
+import androidx.lifecycle.compose.collectAsStateWithLifecycle
+import com.runicgateway.app.R
+import com.runicgateway.app.data.api.dto.AtlasCreatureDto
+import com.runicgateway.app.data.api.dto.AtlasPlaceDto
+import com.runicgateway.app.data.api.dto.AtlasSpawnerDto
+import com.runicgateway.app.ui.UiState
+import com.runicgateway.app.ui.components.EmptyView
+import com.runicgateway.app.ui.components.ErrorView
+import com.runicgateway.app.ui.components.LoadingView
+import com.runicgateway.app.ui.components.PillTone
+import com.runicgateway.app.ui.components.SectionLabel
+import com.runicgateway.app.ui.components.StatusPill
+
+/**
+ * The spawn atlas / bestiary (PLAN.md §9 M11): "where do I find X".
+ *
+ * The whole point of the feature is the placement transform the server does — a spawn
+ * at 5411,1234 becomes *"Despise, Felucca"* — so a row leads with where a creature is
+ * found, not with coordinates.
+ */
+@Composable
+fun AtlasScreen(
+    onOpenCreature: (String) -> Unit,
+    modifier: Modifier = Modifier,
+    viewModel: AtlasViewModel = hiltViewModel(),
+) {
+    val state by viewModel.state.collectAsStateWithLifecycle()
+    val query by viewModel.query.collectAsStateWithLifecycle()
+
+    Column(modifier.fillMaxSize()) {
+        OutlinedTextField(
+            value = query,
+            onValueChange = viewModel::onQueryChange,
+            label = { Text(stringResource(R.string.atlas_search_label)) },
+            singleLine = true,
+            keyboardOptions = KeyboardOptions(imeAction = ImeAction.Search),
+            keyboardActions = KeyboardActions(onSearch = { viewModel.search() }),
+            modifier = Modifier.fillMaxWidth().padding(horizontal = 16.dp, vertical = 8.dp),
+        )
+
+        when (val s = state) {
+            is UiState.Loading -> LoadingView()
+            is UiState.Error -> ErrorView(s.kind, onRetry = viewModel::load)
+            is UiState.Success -> {
+                if (s.data.creatures.isEmpty()) {
+                    EmptyView(stringResource(R.string.atlas_empty))
+                } else {
+                    LazyColumn(
+                        modifier = Modifier.fillMaxSize().padding(horizontal = 16.dp),
+                        verticalArrangement = Arrangement.spacedBy(8.dp),
+                        contentPadding = androidx.compose.foundation.layout.PaddingValues(bottom = 16.dp),
+                    ) {
+                        items(s.data.creatures, key = { it.slug.orEmpty() }) { creature ->
+                            CreatureCard(creature, onOpenCreature)
+                        }
+                    }
+                }
+            }
+        }
+    }
+}
+
+@Composable
+private fun CreatureCard(creature: AtlasCreatureDto, onOpenCreature: (String) -> Unit) {
+    val slug = creature.slug
+    Card(
+        Modifier
+            .fillMaxWidth()
+            .then(if (slug != null) Modifier.clickable { onOpenCreature(slug) } else Modifier),
+    ) {
+        Column(Modifier.padding(16.dp)) {
+            Row(Modifier.fillMaxWidth(), horizontalArrangement = Arrangement.SpaceBetween) {
+                Text(
+                    text = creature.name ?: slug.orEmpty(),
+                    style = MaterialTheme.typography.titleSmall,
+                    maxLines = 1,
+                    overflow = TextOverflow.Ellipsis,
+                    modifier = Modifier.weight(1f),
+                )
+                // `points` is a COUNT of spawners on this route; `spawners` is the list,
+                // and only the detail route sends it.
+                creature.points?.let {
+                    Text(
+                        text = pluralStringResource(R.plurals.atlas_spawner_count, it, it),
+                        style = MaterialTheme.typography.labelSmall,
+                        color = MaterialTheme.colorScheme.onSurfaceVariant,
+                    )
+                }
+            }
+            facetSummary(creature)?.let {
+                Text(
+                    text = it,
+                    style = MaterialTheme.typography.bodySmall,
+                    color = MaterialTheme.colorScheme.onSurfaceVariant,
+                )
+            }
+        }
+    }
+}
+
+/** One creature: every spawner, where it stands, and what shares its spawns. */
+@OptIn(ExperimentalLayoutApi::class)
+@Composable
+fun AtlasCreatureScreen(
+    slug: String,
+    modifier: Modifier = Modifier,
+    viewModel: AtlasCreatureViewModel = hiltViewModel(),
+) {
+    LaunchedEffect(slug) { viewModel.load(slug) }
+    val state by viewModel.state.collectAsStateWithLifecycle()
+
+    when (val s = state) {
+        is UiState.Loading -> LoadingView(modifier)
+        is UiState.Error -> ErrorView(s.kind, onRetry = viewModel::retry, modifier = modifier)
+        is UiState.Success -> {
+            val creature = s.data
+            LazyColumn(
+                modifier = modifier.fillMaxSize().padding(horizontal = 16.dp),
+                verticalArrangement = Arrangement.spacedBy(8.dp),
+                contentPadding = androidx.compose.foundation.layout.PaddingValues(vertical = 16.dp),
+            ) {
+                item {
+                    Column {
+                        Text(
+                            creature.name ?: creature.slug.orEmpty(),
+                            style = MaterialTheme.typography.titleLarge,
+                        )
+                        creature.total?.let {
+                            Text(
+                                stringResource(R.string.atlas_total_alive, it),
+                                style = MaterialTheme.typography.bodyMedium,
+                                color = MaterialTheme.colorScheme.onSurfaceVariant,
+                            )
+                        }
+                        if (creature.facets.isNotEmpty()) {
+                            FlowRow(
+                                Modifier.padding(top = 8.dp),
+                                horizontalArrangement = Arrangement.spacedBy(6.dp),
+                                verticalArrangement = Arrangement.spacedBy(6.dp),
+                            ) {
+                                creature.facets.entries.sortedBy { it.key }.forEach { (facet, count) ->
+                                    StatusPill(
+                                        text = stringResource(R.string.atlas_facet_count, facet, count),
+                                        tone = PillTone.Neutral,
+                                    )
+                                }
+                            }
+                        }
+                    }
+                }
+                // The aggregate comes first: "where is it" is the question, and the
+                // individual coordinates below are the follow-up. Same ordering as web.
+                if (creature.places.isNotEmpty()) {
+                    item { SectionLabel(stringResource(R.string.atlas_section_places)) }
+                    items(
+                        creature.places,
+                        key = { "${it.facet.orEmpty()}:${it.label.orEmpty()}" },
+                    ) { place ->
+                        PlaceRow(place)
+                    }
+                }
+                if (creature.spawners.isNotEmpty()) {
+                    item { SectionLabel(stringResource(R.string.atlas_section_spawners)) }
+                    items(creature.spawners, key = { it.id ?: it.hashCode().toLong() }) { spawner ->
+                        SpawnerRow(spawner)
+                    }
+                    if (creature.spawnersTruncated) {
+                        item {
+                            Text(
+                                stringResource(R.string.atlas_spawners_truncated),
+                                style = MaterialTheme.typography.labelSmall,
+                                color = MaterialTheme.colorScheme.onSurfaceVariant,
+                            )
+                        }
+                    }
+                }
+                if (creature.alsoHere.isNotEmpty()) {
+                    item { SectionLabel(stringResource(R.string.atlas_section_also_here)) }
+                    item {
+                        Text(
+                            creature.alsoHere.mapNotNull { it.name ?: it.slug }.joinToString(", "),
+                            style = MaterialTheme.typography.bodySmall,
+                            color = MaterialTheme.colorScheme.onSurfaceVariant,
+                        )
+                    }
+                }
+            }
+        }
+    }
+}
+
+@Composable
+private fun PlaceRow(place: AtlasPlaceDto) {
+    Column(Modifier.fillMaxWidth().padding(vertical = 4.dp)) {
+        Text(
+            text = placeLabel(place),
+            style = MaterialTheme.typography.bodyMedium,
+        )
+        val meta = listOfNotNull(
+            place.facet,
+            place.spawners?.let { pluralStringResource(R.plurals.atlas_spawner_count, it, it) },
+            place.maxAlive?.let { stringResource(R.string.atlas_place_max_alive, it) },
+        ).joinToString("  ·  ")
+        if (meta.isNotBlank()) {
+            Text(meta, style = MaterialTheme.typography.labelSmall, color = MaterialTheme.colorScheme.onSurfaceVariant)
+        }
+    }
+}
+
+@Composable
+private fun SpawnerRow(spawner: AtlasSpawnerDto) {
+    Column(Modifier.fillMaxWidth().padding(vertical = 4.dp)) {
+        Text(
+            text = spawnerPlace(spawner),
+            style = MaterialTheme.typography.bodyMedium,
+        )
+        val meta = listOfNotNull(
+            spawner.maxCount?.let { stringResource(R.string.atlas_max_count, it) },
+            // Seconds, normalised server-side — the raw XmlSpawner values are minutes
+            // OR seconds per record.
+            formatRespawn(spawner.minDelay, spawner.maxDelay)
+                ?.let { stringResource(R.string.atlas_respawn, it) },
+        ).joinToString("  ·  ")
+        if (meta.isNotBlank()) {
+            Text(meta, style = MaterialTheme.typography.labelSmall, color = MaterialTheme.colorScheme.onSurfaceVariant)
+        }
+    }
+}
+
+// ── Pure helpers (unit-tested) ───────────────────────────────────────────────
+
+/**
+ * Where a spawner stands, preferring the server's own placement label — the
+ * point-in-rect transform is what turns a coordinate into "Despise, Felucca" and is
+ * the reason this feature exists. Falls back through region, landmark, and finally the
+ * raw coordinates, which is honest rather than useless for the ~17% of spawns that
+ * resolve to no named place.
+ */
+internal fun spawnerPlace(spawner: AtlasSpawnerDto): String {
+    spawner.label?.takeIf { it.isNotBlank() }?.let { return it }
+    val place = spawner.region ?: spawner.landmark
+    val facet = spawner.facet
+    return when {
+        place != null && facet != null -> "$place, $facet"
+        place != null -> place
+        spawner.x != null && spawner.y != null ->
+            listOfNotNull(facet, "${spawner.x}, ${spawner.y}").joinToString(" ")
+        else -> facet.orEmpty()
+    }
+}
+
+/**
+ * The name of an aggregated place. [AtlasPlaceDto.label] is already the server's
+ * resolved answer and falls back to "Wilderness" there, so the only case left here is
+ * a place that carried no label at all — then the facet is better than nothing.
+ */
+internal fun placeLabel(place: AtlasPlaceDto): String =
+    place.label?.takeIf { it.isNotBlank() } ?: place.facet.orEmpty()
+
+/**
+ * A creature's facets as one line, most spawners first — "where is it *mostly*" is the
+ * question a search result answers.
+ */
+internal fun facetSummary(creature: AtlasCreatureDto): String? {
+    if (creature.facets.isEmpty()) return null
+    return creature.facets.entries
+        .sortedByDescending { it.value }
+        .joinToString(", ") { it.key }
+}

app/src/main/java/com/runicgateway/app/ui/shard/AtlasViewModel.kt

@@ -0,0 +1,125 @@
+/*
+ * SPDX-License-Identifier: GPL-3.0-or-later
+ */
+package com.runicgateway.app.ui.shard
+
+import androidx.lifecycle.ViewModel
+import androidx.lifecycle.viewModelScope
+import com.runicgateway.app.core.result.ApiResult
+import com.runicgateway.app.data.api.dto.AtlasCreatureDto
+import com.runicgateway.app.data.api.dto.AtlasCreaturePageDto
+import com.runicgateway.app.data.repository.ShardRepository
+import com.runicgateway.app.ui.UiState
+import com.runicgateway.app.ui.toShardUiState
+import dagger.hilt.android.lifecycle.HiltViewModel
+import kotlinx.coroutines.flow.MutableStateFlow
+import kotlinx.coroutines.flow.StateFlow
+import kotlinx.coroutines.flow.asStateFlow
+import kotlinx.coroutines.launch
+import javax.inject.Inject
+
+/**
+ * The spawn atlas / bestiary (PLAN.md §9 M11, `docs/link/v3.md` §6): where each
+ * creature spawns, derived server-side from the shard's own data files.
+ *
+ * Static shard **content**, not live state — it does not go offline with the sidecar,
+ * and it lives under `/public/atlas`, not `/public/shard`. Unlike the shard routes it
+ * IS site-mode gated, so a site in maintenance withholds it independently.
+ */
+@HiltViewModel
+class AtlasViewModel @Inject constructor(
+    private val repository: ShardRepository,
+) : ViewModel() {
+
+    private val _state = MutableStateFlow<UiState<AtlasCreaturePageDto>>(UiState.Loading)
+    val state: StateFlow<UiState<AtlasCreaturePageDto>> = _state.asStateFlow()
+
+    private val _query = MutableStateFlow("")
+    val query: StateFlow<String> = _query.asStateFlow()
+
+    private val _facet = MutableStateFlow<String?>(null)
+    val facet: StateFlow<String?> = _facet.asStateFlow()
+
+    /**
+     * The facets this shard actually has. Discovered from the atlas itself — a shard
+     * may add, replace or rename facets when its maps change, so nothing here may name
+     * one (`v3.md` §6.1 R2).
+     */
+    private val _facets = MutableStateFlow<List<String>>(emptyList())
+    val facets: StateFlow<List<String>> = _facets.asStateFlow()
+
+    init {
+        load()
+    }
+
+    fun onQueryChange(value: String) {
+        _query.value = value
+    }
+
+    fun onFacetChange(value: String?) {
+        if (value == _facet.value) return
+        _facet.value = value
+        search()
+    }
+
+    fun search() = load()
+
+    fun load() {
+        _state.value = UiState.Loading
+        viewModelScope.launch {
+            val page = repository.atlasCreatures(query = _query.value, facet = _facet.value)
+            if (page is ApiResult.Ok && _facets.value.isEmpty()) {
+                // Only the first successful page needs to establish the filter options;
+                // a filtered page would otherwise narrow them to its own results.
+                _facets.value = page.data.creatures
+                    .flatMap { it.facets.keys }
+                    .distinct()
+                    .sorted()
+            }
+            _state.value = page.toShardUiState()
+        }
+    }
+}
+
+/** One creature's detail page: every spawner, and what else shares them. */
+@HiltViewModel
+class AtlasCreatureViewModel @Inject constructor(
+    private val repository: ShardRepository,
+) : ViewModel() {
+
+    private val _state = MutableStateFlow<UiState<AtlasCreatureDto>>(UiState.Loading)
+    val state: StateFlow<UiState<AtlasCreatureDto>> = _state.asStateFlow()
+
+    private var slug: String? = null
+
+    fun load(slug: String) {
+        this.slug = slug
+        _state.value = UiState.Loading
+        viewModelScope.launch {
+            _state.value = repository.atlasCreature(slug).toShardUiState()
+        }
+    }
+
+    fun retry() {
+        slug?.let { load(it) }
+    }
+}
+
+/**
+ * A respawn delay as text. **The API carries SECONDS** — XmlSpawner stores minutes
+ * except when a delay doesn't divide into whole minutes, and the server's parser
+ * normalises the two spellings so a `5` is never ambiguous here (`v3.md` §6.3).
+ *
+ * Pure, so the unit conversion is unit-tested rather than eyeballed on a page.
+ */
+internal fun formatRespawn(minSeconds: Int?, maxSeconds: Int?): String? {
+    val lo = minSeconds ?: maxSeconds ?: return null
+    val hi = maxSeconds ?: minSeconds ?: return null
+    return if (lo == hi) humaniseSeconds(lo) else "${humaniseSeconds(lo)}–${humaniseSeconds(hi)}"
+}
+
+private fun humaniseSeconds(seconds: Int): String = when {
+    seconds < 60 -> "${seconds}s"
+    seconds % 60 == 0 -> "${seconds / 60}m"
+    else -> "${seconds / 60}m ${seconds % 60}s"
+}

app/src/main/java/com/runicgateway/app/ui/shard/ChampsViewModel.kt

@@ -10,7 +10,7 @@ import com.runicgateway.app.core.result.ApiResult
 import com.runicgateway.app.data.api.dto.ChampDto
 import com.runicgateway.app.data.repository.ShardRepository
 import com.runicgateway.app.ui.UiState
-import com.runicgateway.app.ui.toUiState
+import com.runicgateway.app.ui.toShardUiState
 import dagger.hilt.android.lifecycle.HiltViewModel
 import kotlinx.coroutines.flow.MutableStateFlow
 import kotlinx.coroutines.flow.StateFlow
@@ -49,7 +49,7 @@ class ChampsViewModel @Inject constructor(
                     board.seed(result.data)
                     publish()
                 }
-                else -> _state.value = result.toUiState()
+                else -> _state.value = result.toShardUiState()
             }
         }
     }

app/src/main/java/com/runicgateway/app/ui/shard/GovernorsViewModel.kt

@@ -11,7 +11,7 @@ import com.runicgateway.app.data.api.dto.GovernorDto
 import com.runicgateway.app.data.api.dto.GovernorTermDto
 import com.runicgateway.app.data.repository.ShardRepository
 import com.runicgateway.app.ui.UiState
-import com.runicgateway.app.ui.toUiState
+import com.runicgateway.app.ui.toShardUiState
 import dagger.hilt.android.lifecycle.HiltViewModel
 import kotlinx.coroutines.flow.MutableStateFlow
 import kotlinx.coroutines.flow.StateFlow
@@ -55,7 +55,7 @@ class GovernorsViewModel @Inject constructor(
                     board.seed(result.data)
                     publish()
                 }
-                else -> _state.value = result.toUiState()
+                else -> _state.value = result.toShardUiState()
             }
         }
     }

app/src/main/java/com/runicgateway/app/ui/shard/GuildsViewModel.kt

@@ -10,7 +10,7 @@ import com.runicgateway.app.core.result.ApiResult
 import com.runicgateway.app.data.api.dto.GuildDto
 import com.runicgateway.app.data.repository.ShardRepository
 import com.runicgateway.app.ui.UiState
-import com.runicgateway.app.ui.toUiState
+import com.runicgateway.app.ui.toShardUiState
 import dagger.hilt.android.lifecycle.HiltViewModel
 import kotlinx.coroutines.flow.MutableStateFlow
 import kotlinx.coroutines.flow.StateFlow
@@ -50,7 +50,7 @@ class GuildsViewModel @Inject constructor(
                     board.seed(result.data)
                     publish()
                 }
-                else -> _state.value = result.toUiState()
+                else -> _state.value = result.toShardUiState()
             }
         }
     }

app/src/main/java/com/runicgateway/app/ui/shard/HousesViewModel.kt

@@ -10,7 +10,7 @@ import com.runicgateway.app.core.result.ApiResult
 import com.runicgateway.app.data.api.dto.HouseDto
 import com.runicgateway.app.data.repository.ShardRepository
 import com.runicgateway.app.ui.UiState
-import com.runicgateway.app.ui.toUiState
+import com.runicgateway.app.ui.toShardUiState
 import dagger.hilt.android.lifecycle.HiltViewModel
 import kotlinx.coroutines.flow.MutableStateFlow
 import kotlinx.coroutines.flow.StateFlow
@@ -50,7 +50,7 @@ class HousesViewModel @Inject constructor(
                     board.seed(result.data)
                     publish()
                 }
-                else -> _state.value = result.toUiState()
+                else -> _state.value = result.toShardUiState()
             }
         }
     }

app/src/main/java/com/runicgateway/app/ui/shard/LeaderboardsScreen.kt

@@ -0,0 +1,169 @@
+/*
+ * SPDX-License-Identifier: GPL-3.0-or-later
+ */
+package com.runicgateway.app.ui.shard
+
+import androidx.compose.foundation.layout.Arrangement
+import androidx.compose.foundation.layout.Column
+import androidx.compose.foundation.layout.Row
+import androidx.compose.foundation.layout.fillMaxWidth
+import androidx.compose.foundation.layout.padding
+import androidx.compose.material3.Card
+import androidx.compose.material3.HorizontalDivider
+import androidx.compose.material3.MaterialTheme
+import androidx.compose.material3.Text
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.getValue
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.res.stringResource
+import androidx.compose.ui.text.font.FontWeight
+import androidx.compose.ui.text.style.TextOverflow
+import androidx.compose.ui.unit.dp
+import androidx.hilt.navigation.compose.hiltViewModel
+import androidx.lifecycle.compose.collectAsStateWithLifecycle
+import com.runicgateway.app.R
+import com.runicgateway.app.data.api.dto.BrandDto
+import com.runicgateway.app.data.api.dto.PointsBoardDto
+import com.runicgateway.app.data.api.dto.PointsEntryDto
+import com.runicgateway.app.ui.components.SectionLabel
+
+/**
+ * The points/loyalty leaderboards (PLAN.md §9 M11), one card per system, live via
+ * `points.board` frames.
+ */
+@Composable
+fun LeaderboardsScreen(
+    brand: BrandDto? = null,
+    modifier: Modifier = Modifier,
+    viewModel: LeaderboardsViewModel = hiltViewModel(),
+) {
+    val state by viewModel.state.collectAsStateWithLifecycle()
+    val connected by viewModel.connected.collectAsStateWithLifecycle()
+
+    LiveBoardScreen(
+        emptyMessage = stringResource(R.string.leaderboards_empty),
+        state = state,
+        connected = connected,
+        onRetry = viewModel::load,
+        key = { it.system.orEmpty() },
+        modifier = modifier,
+    ) { board -> BoardCard(board, placeholderName(brand)) }
+}
+
+@Composable
+private fun BoardCard(board: PointsBoardDto, placeholderName: String) {
+    Card(Modifier.fillMaxWidth()) {
+        Column(Modifier.padding(16.dp), verticalArrangement = Arrangement.spacedBy(2.dp)) {
+            Row(Modifier.fillMaxWidth(), horizontalArrangement = Arrangement.SpaceBetween) {
+                Text(
+                    text = boardLabel(board),
+                    style = MaterialTheme.typography.titleMedium,
+                    maxLines = 1,
+                    overflow = TextOverflow.Ellipsis,
+                    modifier = Modifier.weight(1f),
+                )
+                board.players?.let {
+                    Text(
+                        text = stringResource(R.string.leaderboards_players, it),
+                        style = MaterialTheme.typography.labelSmall,
+                        color = MaterialTheme.colorScheme.onSurfaceVariant,
+                    )
+                }
+            }
+            // A cap is worth stating only when there is one; most systems on a real
+            // shard are uncapped (maxPoints 0), and "/ 0" would be nonsense.
+            board.cap?.let {
+                SectionLabel(stringResource(R.string.leaderboards_cap, it))
+            }
+
+            if (board.top.isEmpty()) {
+                // A board nobody has scored on still gets a row, so the page reads as a
+                // set of standings waiting to be filled rather than a stack of blanks.
+                // It is deliberately NOT shaped like an entry — no rank, no score, the
+                // instance's own name — because a placeholder that looked like a real
+                // standing would be a fabricated one. The first real entry replaces it.
+                HorizontalDivider(Modifier.padding(vertical = 8.dp))
+                Row(
+                    Modifier.fillMaxWidth().padding(vertical = 3.dp),
+                    horizontalArrangement = Arrangement.SpaceBetween,
+                ) {
+                    Text(
+                        text = placeholderName,
+                        style = MaterialTheme.typography.bodyMedium,
+                        color = MaterialTheme.colorScheme.onSurfaceVariant,
+                        maxLines = 1,
+                        overflow = TextOverflow.Ellipsis,
+                        modifier = Modifier.weight(1f),
+                    )
+                    Text(
+                        text = stringResource(R.string.leaderboards_no_score),
+                        style = MaterialTheme.typography.bodyMedium,
+                        color = MaterialTheme.colorScheme.onSurfaceVariant,
+                    )
+                }
+                Text(
+                    stringResource(R.string.leaderboards_board_empty),
+                    style = MaterialTheme.typography.labelSmall,
+                    color = MaterialTheme.colorScheme.onSurfaceVariant,
+                    modifier = Modifier.padding(top = 6.dp),
+                )
+            } else {
+                HorizontalDivider(Modifier.padding(vertical = 8.dp))
+                board.top.forEach { entry -> EntryRow(entry) }
+            }
+        }
+    }
+}
+
+@Composable
+private fun EntryRow(entry: PointsEntryDto) {
+    Row(
+        Modifier.fillMaxWidth().padding(vertical = 3.dp),
+        horizontalArrangement = Arrangement.SpaceBetween,
+    ) {
+        Text(
+            text = stringResource(
+                R.string.leaderboards_rank_name,
+                entry.rank ?: 0,
+                // The character name is admin-configurable — a shard can publish
+                // standings without naming who holds them, so a nameless rank is a
+                // valid row rather than a broken one.
+                entry.name ?: stringResource(R.string.leaderboards_hidden_name),
+            ),
+            style = MaterialTheme.typography.bodyMedium,
+            maxLines = 1,
+            overflow = TextOverflow.Ellipsis,
+            modifier = Modifier.weight(1f),
+        )
+        Text(
+            text = (entry.points ?: 0L).toString(),
+            style = MaterialTheme.typography.bodyMedium,
+            fontWeight = FontWeight.Medium,
+            color = MaterialTheme.colorScheme.onSurfaceVariant,
+        )
+    }
+}
+
+/**
+ * A board's display name: the shard's own literal when it has one, else the humanised
+ * `PointsType` key. The fallback is the PRIMARY path — four of five boards on a real
+ * shard name themselves with a cliloc and send `nameString: null`.
+ */
+internal fun boardLabel(board: PointsBoardDto): String {
+    board.nameString?.takeIf { it.isNotBlank() }?.let { return it }
+    return board.system.orEmpty()
+        .replace(Regex("([a-z0-9])([A-Z])"), "$1 $2")
+        .replaceFirstChar { it.uppercaseChar() }
+}
+
+/**
+ * The name to stand in for an empty board: this instance's, falling back to the app
+ * name — the same resolution the app bar uses, so a shard that publishes no branding
+ * still reads as *something* rather than as a blank row.
+ *
+ * Pure and separate so the fallback order is testable; [BrandDto.name] can be present
+ * but blank, which is a shard that set the key and left it empty.
+ */
+@Composable
+internal fun placeholderName(brand: BrandDto?): String =
+    brand?.name?.takeIf { it.isNotBlank() } ?: stringResource(R.string.app_name)

app/src/main/java/com/runicgateway/app/ui/shard/LeaderboardsViewModel.kt

@@ -0,0 +1,101 @@
+/*
+ * SPDX-License-Identifier: GPL-3.0-or-later
+ */
+package com.runicgateway.app.ui.shard
+
+import androidx.lifecycle.ViewModel
+import androidx.lifecycle.viewModelScope
+import com.runicgateway.app.core.net.ShardStreamEvent
+import com.runicgateway.app.core.result.ApiResult
+import com.runicgateway.app.data.api.dto.PointsBoardDto
+import com.runicgateway.app.data.repository.ShardRepository
+import com.runicgateway.app.ui.UiState
+import com.runicgateway.app.ui.toShardUiState
+import dagger.hilt.android.lifecycle.HiltViewModel
+import kotlinx.coroutines.flow.MutableStateFlow
+import kotlinx.coroutines.flow.StateFlow
+import kotlinx.coroutines.flow.asStateFlow
+import kotlinx.coroutines.launch
+import javax.inject.Inject
+
+/**
+ * The points/loyalty leaderboards (PLAN.md §9 M11, `docs/link/v3.md` §7): one board
+ * per point currency the shard publishes, each with its top ranks.
+ *
+ * Served from the website's own store, so the page renders while the shard is down —
+ * which matters more here than for live state: these are standings accumulated over
+ * months, and blanking them during a restart would look like data loss.
+ *
+ * Kept live by `points.board` frames, one per system, merged in place by [LiveBoard].
+ */
+@HiltViewModel
+class LeaderboardsViewModel @Inject constructor(
+    private val repository: ShardRepository,
+) : ViewModel() {
+
+    private val board = LiveBoard<PointsBoardDto> { it.system.orEmpty() }
+
+    private val _state = MutableStateFlow<UiState<List<PointsBoardDto>>>(UiState.Loading)
+    val state: StateFlow<UiState<List<PointsBoardDto>>> = _state.asStateFlow()
+
+    private val _connected = MutableStateFlow(false)
+    val connected: StateFlow<Boolean> = _connected.asStateFlow()
+
+    init {
+        load()
+        collectLive()
+    }
+
+    fun load() {
+        _state.value = UiState.Loading
+        viewModelScope.launch {
+            when (val result = repository.pointsBoards()) {
+                is ApiResult.Ok -> {
+                    board.seed(result.data)
+                    publish()
+                }
+                else -> _state.value = result.toShardUiState()
+            }
+        }
+    }
+
+    private fun collectLive() {
+        viewModelScope.launch {
+            repository.liveEvents().collect { event ->
+                when (event) {
+                    is ShardStreamEvent.Open -> _connected.value = true
+                    is ShardStreamEvent.Closed -> _connected.value = false
+                    is ShardStreamEvent.Frame -> applyFrame(event)
+                }
+            }
+        }
+    }
+
+    private fun applyFrame(frame: ShardStreamEvent.Frame) {
+        // There is deliberately no `points.remove` on the wire: the system set is fixed
+        // for a given shard build, the same argument `city.update` makes.
+        if (frame.kind != "points.board") return
+        repository.pointsBoardFrame(frame.data)?.let { board.upsert(it) }
+        if (_state.value is UiState.Success) publish()
+    }
+
+    private fun publish() {
+        _state.value = UiState.Success(orderBoards(board.values()))
+    }
+}
+
+/**
+ * Board display order: most-contested first, then by name, so the boards people
+ * actually compete on lead. Pure, so the ordering is unit-tested.
+ *
+ * Boards the shard flags as not player-facing (`showOnGump = false`) are dropped —
+ * that is the shard's own "is this for players?" signal and the plugin already filters
+ * on it, so this only guards a shard configured to publish extras.
+ */
+internal fun orderBoards(boards: Collection<PointsBoardDto>): List<PointsBoardDto> =
+    boards
+        .filter { it.showOnGump }
+        .sortedWith(
+            compareByDescending<PointsBoardDto> { it.players ?: 0 }
+                .thenBy { (it.nameString ?: it.system).orEmpty().lowercase() },
+        )

app/src/main/java/com/runicgateway/app/ui/shard/MarketScreen.kt

@@ -0,0 +1,260 @@
+/*
+ * SPDX-License-Identifier: GPL-3.0-or-later
+ */
+package com.runicgateway.app.ui.shard
+
+import androidx.compose.foundation.clickable
+import androidx.compose.foundation.layout.Arrangement
+import androidx.compose.foundation.layout.Column
+import androidx.compose.foundation.layout.Row
+import androidx.compose.foundation.layout.fillMaxSize
+import androidx.compose.foundation.layout.fillMaxWidth
+import androidx.compose.foundation.layout.padding
+import androidx.compose.foundation.lazy.LazyColumn
+import androidx.compose.foundation.lazy.items
+import androidx.compose.foundation.text.KeyboardActions
+import androidx.compose.foundation.text.KeyboardOptions
+import androidx.compose.material3.Card
+import androidx.compose.material3.MaterialTheme
+import androidx.compose.material3.OutlinedTextField
+import androidx.compose.material3.Text
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.getValue
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.res.stringResource
+import androidx.compose.ui.text.font.FontWeight
+import androidx.compose.ui.text.input.ImeAction
+import androidx.compose.ui.text.style.TextOverflow
+import androidx.compose.ui.unit.dp
+import androidx.hilt.navigation.compose.hiltViewModel
+import androidx.lifecycle.compose.collectAsStateWithLifecycle
+import com.runicgateway.app.R
+import com.runicgateway.app.data.api.dto.MarketListingDto
+import com.runicgateway.app.data.api.dto.MarketLocationDto
+import com.runicgateway.app.data.api.dto.MarketVendorDto
+import com.runicgateway.app.ui.UiState
+import com.runicgateway.app.ui.components.EmptyView
+import com.runicgateway.app.ui.components.ErrorView
+import com.runicgateway.app.ui.components.LoadingView
+import com.runicgateway.app.ui.components.SectionLabel
+
+/**
+ * The shard-wide marketplace (PLAN.md §9 M11): search every player vendor's stock.
+ *
+ * The staleness line under the search box is required, not decoration — see
+ * [MarketViewModel]. Results are listings, so a row names both the item and the shop
+ * that sells it, and tapping it opens that shop.
+ */
+@Composable
+fun MarketScreen(
+    onOpenVendor: (String) -> Unit,
+    modifier: Modifier = Modifier,
+    viewModel: MarketViewModel = hiltViewModel(),
+) {
+    val state by viewModel.state.collectAsStateWithLifecycle()
+    val meta by viewModel.meta.collectAsStateWithLifecycle()
+    val query by viewModel.query.collectAsStateWithLifecycle()
+
+    Column(modifier.fillMaxSize()) {
+        OutlinedTextField(
+            value = query,
+            onValueChange = viewModel::onQueryChange,
+            label = { Text(stringResource(R.string.market_search_label)) },
+            singleLine = true,
+            // Searched on submit rather than per keystroke: this is the site's first
+            // rate-limited public endpoint.
+            keyboardOptions = KeyboardOptions(imeAction = ImeAction.Search),
+            keyboardActions = KeyboardActions(onSearch = { viewModel.search() }),
+            modifier = Modifier.fillMaxWidth().padding(horizontal = 16.dp, vertical = 8.dp),
+        )
+        meta?.staleAt?.let {
+            SectionLabel(
+                text = stringResource(R.string.market_staleness),
+                modifier = Modifier.padding(horizontal = 16.dp),
+            )
+        }
+
+        when (val s = state) {
+            is UiState.Loading -> LoadingView()
+            is UiState.Error -> ErrorView(s.kind, onRetry = viewModel::load)
+            is UiState.Success -> {
+                if (s.data.listings.isEmpty()) {
+                    EmptyView(stringResource(R.string.market_empty))
+                } else {
+                    LazyColumn(
+                        modifier = Modifier.fillMaxSize().padding(horizontal = 16.dp),
+                        verticalArrangement = Arrangement.spacedBy(8.dp),
+                        contentPadding = androidx.compose.foundation.layout.PaddingValues(bottom = 16.dp),
+                    ) {
+                        items(s.data.listings, key = { it.serial ?: it.hashCode().toString() }) { listing ->
+                            ListingCard(listing, onOpenVendor)
+                        }
+                    }
+                }
+            }
+        }
+    }
+}
+
+@Composable
+private fun ListingCard(listing: MarketListingDto, onOpenVendor: (String) -> Unit) {
+    val vendorSerial = listing.vendor?.serial
+    Card(
+        Modifier
+            .fillMaxWidth()
+            .then(if (vendorSerial != null) Modifier.clickable { onOpenVendor(vendorSerial) } else Modifier),
+    ) {
+        Column(Modifier.padding(16.dp)) {
+            Row(Modifier.fillMaxWidth(), horizontalArrangement = Arrangement.SpaceBetween) {
+                Text(
+                    text = listingTitle(listing)
+                        ?: stringResource(R.string.market_unnamed_item, listing.itemId ?: 0),
+                    style = MaterialTheme.typography.titleSmall,
+                    maxLines = 1,
+                    overflow = TextOverflow.Ellipsis,
+                    modifier = Modifier.weight(1f),
+                )
+                Text(
+                    text = stringResource(R.string.market_price, listing.price ?: 0L),
+                    style = MaterialTheme.typography.titleSmall,
+                    fontWeight = FontWeight.Medium,
+                )
+            }
+            val shop = listing.vendor?.shopName ?: listing.vendor?.ownerName
+            if (shop != null) {
+                Text(
+                    text = shop,
+                    style = MaterialTheme.typography.bodySmall,
+                    color = MaterialTheme.colorScheme.onSurfaceVariant,
+                    maxLines = 1,
+                    overflow = TextOverflow.Ellipsis,
+                )
+            }
+            locationLine(listing.vendor?.location)?.let {
+                Text(
+                    text = it,
+                    style = MaterialTheme.typography.labelSmall,
+                    color = MaterialTheme.colorScheme.onSurfaceVariant,
+                )
+            }
+        }
+    }
+}
+
+/**
+ * One shop and its stock. The only surface that can answer the two questions a result
+ * list can't: how much of a truncated shop is published, and where a shop is when the
+ * shard doesn't say.
+ */
+@Composable
+fun MarketVendorScreen(
+    serial: String,
+    modifier: Modifier = Modifier,
+    viewModel: MarketVendorViewModel = hiltViewModel(),
+) {
+    androidx.compose.runtime.LaunchedEffect(serial) { viewModel.load(serial) }
+    val state by viewModel.state.collectAsStateWithLifecycle()
+
+    when (val s = state) {
+        is UiState.Loading -> LoadingView(modifier)
+        is UiState.Error -> ErrorView(s.kind, onRetry = viewModel::retry, modifier = modifier)
+        is UiState.Success -> VendorContent(s.data, modifier)
+    }
+}
+
+@Composable
+private fun VendorContent(vendor: MarketVendorDto, modifier: Modifier = Modifier) {
+    LazyColumn(
+        modifier = modifier.fillMaxSize().padding(horizontal = 16.dp),
+        verticalArrangement = Arrangement.spacedBy(8.dp),
+        contentPadding = androidx.compose.foundation.layout.PaddingValues(vertical = 16.dp),
+    ) {
+        item {
+            Column {
+                Text(
+                    vendor.shopName ?: stringResource(R.string.market_unnamed_shop),
+                    style = MaterialTheme.typography.titleLarge,
+                )
+                vendor.ownerName?.let {
+                    Text(
+                        stringResource(R.string.market_owner, it),
+                        style = MaterialTheme.typography.bodyMedium,
+                        color = MaterialTheme.colorScheme.onSurfaceVariant,
+                    )
+                }
+                Text(
+                    // A gated location is a real answer, not a blank: the shard has
+                    // this shop, it just doesn't publish where it stands.
+                    text = locationLine(vendor.location) ?: stringResource(R.string.market_location_hidden),
+                    style = MaterialTheme.typography.bodySmall,
+                    color = MaterialTheme.colorScheme.onSurfaceVariant,
+                )
+                if (vendor.truncated) {
+                    Text(
+                        text = stringResource(
+                            R.string.market_truncated,
+                            vendor.count ?: vendor.items.size,
+                            vendor.total ?: 0,
+                        ),
+                        style = MaterialTheme.typography.labelSmall,
+                        color = MaterialTheme.colorScheme.onSurfaceVariant,
+                        modifier = Modifier.padding(top = 6.dp),
+                    )
+                }
+            }
+        }
+        if (vendor.items.isEmpty()) {
+            item { Text(stringResource(R.string.market_shop_empty), style = MaterialTheme.typography.bodyMedium) }
+        } else {
+            items(vendor.items, key = { it.serial ?: it.hashCode().toString() }) { item ->
+                Row(Modifier.fillMaxWidth().padding(vertical = 4.dp), horizontalArrangement = Arrangement.SpaceBetween) {
+                    Text(
+                        text = listingTitle(item) ?: stringResource(R.string.market_unnamed_item, item.itemId ?: 0),
+                        style = MaterialTheme.typography.bodyMedium,
+                        maxLines = 1,
+                        overflow = TextOverflow.Ellipsis,
+                        modifier = Modifier.weight(1f),
+                    )
+                    Text(
+                        text = stringResource(R.string.market_price, item.price ?: 0L),
+                        style = MaterialTheme.typography.bodyMedium,
+                        color = MaterialTheme.colorScheme.onSurfaceVariant,
+                    )
+                }
+            }
+        }
+    }
+}
+
+// ── Pure helpers (unit-tested) ───────────────────────────────────────────────
+
+/**
+ * What to call a listing: a player-set name, else the server-resolved cliloc name,
+ * else null so the caller can fall back to the item id. A shard with no cliloc table
+ * configured legitimately publishes neither.
+ *
+ * A stack shows its count, since "12 × ingot" and "ingot" at the same price are very
+ * different offers.
+ */
+internal fun listingTitle(listing: MarketListingDto): String? {
+    val base = listing.label ?: return null
+    val amount = listing.amount ?: 1
+    return if (amount > 1) "$amount × $base" else base
+}
+
+/**
+ * A shop's whereabouts as one line, or null when the shard publishes no location —
+ * which happens both because an admin gated the field and because the nesting means
+ * the WHOLE block goes at once, never a half-populated one.
+ */
+internal fun locationLine(location: MarketLocationDto?): String? {
+    if (location == null) return null
+    val place = location.house ?: location.region
+    val facet = location.map
+    return when {
+        place != null && facet != null -> "$place, $facet"
+        place != null -> place
+        facet != null -> facet
+        else -> null
+    }
+}

app/src/main/java/com/runicgateway/app/ui/shard/MarketViewModel.kt

@@ -0,0 +1,118 @@
+/*
+ * SPDX-License-Identifier: GPL-3.0-or-later
+ */
+package com.runicgateway.app.ui.shard
+
+import androidx.lifecycle.ViewModel
+import androidx.lifecycle.viewModelScope
+import com.runicgateway.app.core.result.ApiResult
+import com.runicgateway.app.data.api.dto.MarketMetaDto
+import com.runicgateway.app.data.api.dto.MarketPageDto
+import com.runicgateway.app.data.api.dto.MarketVendorDto
+import com.runicgateway.app.data.repository.ShardRepository
+import com.runicgateway.app.ui.UiState
+import com.runicgateway.app.ui.toShardUiState
+import dagger.hilt.android.lifecycle.HiltViewModel
+import kotlinx.coroutines.flow.MutableStateFlow
+import kotlinx.coroutines.flow.StateFlow
+import kotlinx.coroutines.flow.asStateFlow
+import kotlinx.coroutines.launch
+import javax.inject.Inject
+
+/**
+ * The shard-wide player-vendor marketplace (PLAN.md §9 M11, `docs/link/v3.md` §8):
+ * search every shop's stock at once.
+ *
+ * **Not live, on purpose.** The `market` feature ships with its SSE fan-out disabled —
+ * a firehose of full vendor inventories would be the site's biggest bandwidth consumer
+ * and no screen needs it live — so this is a plain paginated read. It is also the
+ * first genuinely **rate-limited** public endpoint, which is why the query is applied
+ * on submit rather than on every keystroke.
+ *
+ * The staleness stamp from [meta] is not decoration: the shard sweeps vendors
+ * round-robin, so a listing can legitimately be a full cycle behind, and a screen that
+ * implied live prices would send someone to an item that sold twenty minutes ago.
+ */
+@HiltViewModel
+class MarketViewModel @Inject constructor(
+    private val repository: ShardRepository,
+) : ViewModel() {
+
+    private val _state = MutableStateFlow<UiState<MarketPageDto>>(UiState.Loading)
+    val state: StateFlow<UiState<MarketPageDto>> = _state.asStateFlow()
+
+    private val _meta = MutableStateFlow<MarketMetaDto?>(null)
+    val meta: StateFlow<MarketMetaDto?> = _meta.asStateFlow()
+
+    private val _query = MutableStateFlow("")
+    val query: StateFlow<String> = _query.asStateFlow()
+
+    private val _sort = MutableStateFlow(ShardRepository.SORT_PRICE_ASC)
+    val sort: StateFlow<String> = _sort.asStateFlow()
+
+    init {
+        load()
+    }
+
+    fun onQueryChange(value: String) {
+        // Bounded to what the server accepts, so an over-long query is trimmed here
+        // rather than bounced as a 400.
+        _query.value = value.take(MAX_QUERY)
+    }
+
+    fun onSortChange(value: String) {
+        if (value == _sort.value) return
+        _sort.value = value
+        search()
+    }
+
+    /** Run the current query. Called on submit, not per keystroke — this endpoint is rate-limited. */
+    fun search() = load()
+
+    fun load() {
+        _state.value = UiState.Loading
+        viewModelScope.launch {
+            // Meta is secondary: the staleness banner and filter options are worth
+            // having, but a failure there must not blank the results.
+            _meta.value = (repository.marketMeta() as? ApiResult.Ok)?.data
+            _state.value = repository.market(
+                query = _query.value,
+                sort = _sort.value,
+            ).toShardUiState()
+        }
+    }
+
+    companion object {
+        /** The server rejects a longer `q`. */
+        const val MAX_QUERY = 60
+    }
+}
+
+/**
+ * One shop and its stock. The only surface that can render the two states a result
+ * list cannot: a [MarketVendorDto.truncated] shop, and a location an admin has gated
+ * away — which is a real answer ("the shard doesn't publish where this is") rather
+ * than an empty coordinate.
+ */
+@HiltViewModel
+class MarketVendorViewModel @Inject constructor(
+    private val repository: ShardRepository,
+) : ViewModel() {
+
+    private val _state = MutableStateFlow<UiState<MarketVendorDto>>(UiState.Loading)
+    val state: StateFlow<UiState<MarketVendorDto>> = _state.asStateFlow()
+
+    private var serial: String? = null
+
+    fun load(serial: String) {
+        this.serial = serial
+        _state.value = UiState.Loading
+        viewModelScope.launch {
+            _state.value = repository.marketVendor(serial).toShardUiState()
+        }
+    }
+
+    fun retry() {
+        serial?.let { load(it) }
+    }
+}

app/src/main/java/com/runicgateway/app/ui/shard/RulesScreen.kt

@@ -0,0 +1,207 @@
+/*
+ * SPDX-License-Identifier: GPL-3.0-or-later
+ */
+package com.runicgateway.app.ui.shard
+
+import androidx.compose.foundation.layout.Arrangement
+import androidx.compose.foundation.layout.Column
+import androidx.compose.foundation.layout.ExperimentalLayoutApi
+import androidx.compose.foundation.layout.FlowRow
+import androidx.compose.foundation.layout.Row
+import androidx.compose.foundation.layout.fillMaxSize
+import androidx.compose.foundation.layout.fillMaxWidth
+import androidx.compose.foundation.layout.padding
+import androidx.compose.foundation.lazy.LazyColumn
+import androidx.compose.material3.Card
+import androidx.compose.material3.MaterialTheme
+import androidx.compose.material3.Text
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.getValue
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.res.stringResource
+import androidx.compose.ui.unit.dp
+import androidx.hilt.navigation.compose.hiltViewModel
+import androidx.lifecycle.compose.collectAsStateWithLifecycle
+import com.runicgateway.app.R
+import com.runicgateway.app.data.api.dto.RulesetCapsDto
+import com.runicgateway.app.data.api.dto.RulesetDto
+import com.runicgateway.app.ui.UiState
+import com.runicgateway.app.ui.components.EmptyView
+import com.runicgateway.app.ui.components.ErrorView
+import com.runicgateway.app.ui.components.LoadingView
+import com.runicgateway.app.ui.components.PillTone
+import com.runicgateway.app.ui.components.StatusPill
+
+/**
+ * The shard ruleset (PLAN.md §9 M11): what this world is configured to do.
+ *
+ * Every block renders only when the shard published it — an omitted block means the
+ * system is off, not that the value is unknown, so an empty section would assert
+ * something false.
+ */
+@Composable
+fun RulesScreen(
+    modifier: Modifier = Modifier,
+    viewModel: RulesViewModel = hiltViewModel(),
+) {
+    val state by viewModel.state.collectAsStateWithLifecycle()
+
+    when (val s = state) {
+        is UiState.Loading -> LoadingView(modifier)
+        is UiState.Error -> ErrorView(s.kind, onRetry = viewModel::load, modifier = modifier)
+        is UiState.Success -> {
+            val ruleset = s.data
+            // A null body is a successful read of a shard that has never published its
+            // ruleset — distinct from the feature being switched off, which is an error
+            // state above.
+            if (ruleset == null) {
+                EmptyView(stringResource(R.string.rules_unpublished), modifier)
+            } else {
+                RulesetContent(ruleset, modifier)
+            }
+        }
+    }
+}
+
+@Composable
+private fun RulesetContent(ruleset: RulesetDto, modifier: Modifier = Modifier) {
+    LazyColumn(
+        modifier = modifier.fillMaxSize().padding(horizontal = 16.dp),
+        verticalArrangement = Arrangement.spacedBy(12.dp),
+        contentPadding = androidx.compose.foundation.layout.PaddingValues(vertical = 16.dp),
+    ) {
+        item {
+            RuleCard(stringResource(R.string.rules_section_shard)) {
+                RuleRow(stringResource(R.string.rules_name), ruleset.shard)
+                RuleRow(stringResource(R.string.rules_expansion), ruleset.expansion)
+                // `connect` is the ruleset's one admin-configurable field: an operator
+                // who published an address may still want it behind a login, so its
+                // absence here is a setting, not a missing value.
+                RuleRow(stringResource(R.string.rules_connect), ruleset.connect)
+            }
+        }
+        if (ruleset.systems.isNotEmpty()) {
+            item { SystemsCard(ruleset.systems) }
+        }
+        ruleset.caps?.let { caps -> item { CapsCard(caps) } }
+        item {
+            val accounts = ruleset.accounts
+            val housing = ruleset.housing
+            if (accounts != null || housing != null) {
+                RuleCard(stringResource(R.string.rules_section_accounts)) {
+                    RuleRow(stringResource(R.string.rules_char_slots), accounts?.charSlots?.toString())
+                    RuleRow(stringResource(R.string.rules_per_ip), accounts?.perIp?.toString())
+                    RuleRow(
+                        stringResource(R.string.rules_house_limit),
+                        housing?.accountHouseLimit?.toString(),
+                    )
+                }
+            }
+        }
+        ruleset.vendors?.let { vendors ->
+            item {
+                RuleCard(stringResource(R.string.rules_section_vendors)) {
+                    RuleRow(
+                        stringResource(R.string.rules_restock_delay),
+                        vendors.restockDelayMinutes?.let { stringResource(R.string.rules_minutes, it) },
+                    )
+                    RuleRow(stringResource(R.string.rules_max_sell), vendors.maxSell?.toString())
+                }
+            }
+        }
+        ruleset.schedule?.let { schedule ->
+            item {
+                RuleCard(stringResource(R.string.rules_section_schedule)) {
+                    RuleRow(
+                        stringResource(R.string.rules_autosave),
+                        schedule.autoSaveFrequencyMinutes?.let { stringResource(R.string.rules_minutes, it) },
+                    )
+                    RuleRow(
+                        stringResource(R.string.rules_autorestart),
+                        formatRestart(
+                            schedule.autoRestartEnabled,
+                            schedule.autoRestartHour,
+                            schedule.autoRestartMinute,
+                        ),
+                    )
+                }
+            }
+        }
+    }
+}
+
+@OptIn(ExperimentalLayoutApi::class)
+@Composable
+private fun SystemsCard(systems: Map<String, Boolean>) {
+    RuleCard(stringResource(R.string.rules_section_systems)) {
+        FlowRow(
+            Modifier.padding(top = 6.dp),
+            horizontalArrangement = Arrangement.spacedBy(6.dp),
+            verticalArrangement = Arrangement.spacedBy(6.dp),
+        ) {
+            // Sorted so the list is stable across reloads; the wire order is a config
+            // read order and carries no meaning.
+            systems.entries.sortedBy { it.key }.forEach { (key, on) ->
+                StatusPill(
+                    text = humaniseSystem(key),
+                    tone = if (on) PillTone.Success else PillTone.Neutral,
+                )
+            }
+        }
+    }
+}
+
+@Composable
+private fun CapsCard(caps: RulesetCapsDto) {
+    RuleCard(stringResource(R.string.rules_section_caps)) {
+        // Skill caps arrive in TENTHS (1000 = 100.0). Showing the raw number would read
+        // as a shard with ten times the usual limit.
+        RuleRow(stringResource(R.string.rules_skill_cap), caps.skillCap?.let { formatSkillCap(it) })
+        RuleRow(stringResource(R.string.rules_total_skill_cap), caps.totalSkillCap?.let { formatSkillCap(it) })
+        RuleRow(stringResource(R.string.rules_stat_cap), caps.stat?.toString())
+        RuleRow(stringResource(R.string.rules_str_cap), caps.str?.toString())
+        RuleRow(stringResource(R.string.rules_dex_cap), caps.dex?.toString())
+        RuleRow(stringResource(R.string.rules_int_cap), caps.int?.toString())
+    }
+}
+
+@Composable
+private fun RuleCard(title: String, content: @Composable () -> Unit) {
+    Card(Modifier.fillMaxWidth()) {
+        Column(Modifier.padding(16.dp)) {
+            Text(title, style = MaterialTheme.typography.titleMedium)
+            content()
+        }
+    }
+}
+
+/** One label/value line. Renders nothing when the shard published no value. */
+@Composable
+private fun RuleRow(label: String, value: String?) {
+    if (value.isNullOrBlank()) return
+    Row(
+        Modifier.fillMaxWidth().padding(top = 6.dp),
+        horizontalArrangement = Arrangement.SpaceBetween,
+    ) {
+        Text(label, style = MaterialTheme.typography.bodyMedium, color = MaterialTheme.colorScheme.onSurfaceVariant)
+        Text(value, style = MaterialTheme.typography.bodyMedium)
+    }
+}
+
+// ── Pure helpers (unit-tested) ───────────────────────────────────────────────
+
+/** `cityLoyalty` → "City loyalty". The systems block is a flat bag of config keys. */
+internal fun humaniseSystem(key: String): String = key
+    .replace(Regex("([a-z0-9])([A-Z])"), "$1 $2")
+    .replaceFirstChar { it.uppercaseChar() }
+
+/** A skill cap already converted out of tenths: drop the ".0" on whole values. */
+internal fun formatSkillCap(value: Double): String =
+    if (value % 1.0 == 0.0) value.toInt().toString() else "%.1f".format(value)
+
+/** The auto-restart schedule, or null when the shard doesn't run one. */
+internal fun formatRestart(enabled: Boolean?, hour: Int?, minute: Int?): String? {
+    if (enabled != true) return null
+    if (hour == null) return null
+    return "%02d:%02d".format(hour, minute ?: 0)
+}

app/src/main/java/com/runicgateway/app/ui/shard/RulesViewModel.kt

@@ -0,0 +1,63 @@
+/*
+ * SPDX-License-Identifier: GPL-3.0-or-later
+ */
+package com.runicgateway.app.ui.shard
+
+import androidx.lifecycle.ViewModel
+import androidx.lifecycle.viewModelScope
+import com.runicgateway.app.core.net.ShardStreamEvent
+import com.runicgateway.app.data.api.dto.RulesetDto
+import com.runicgateway.app.data.repository.ShardRepository
+import com.runicgateway.app.ui.UiState
+import com.runicgateway.app.ui.toShardUiState
+import dagger.hilt.android.lifecycle.HiltViewModel
+import kotlinx.coroutines.flow.MutableStateFlow
+import kotlinx.coroutines.flow.StateFlow
+import kotlinx.coroutines.flow.asStateFlow
+import kotlinx.coroutines.launch
+import javax.inject.Inject
+
+/**
+ * The shard ruleset (PLAN.md §9 M11, `docs/link/v3.md` §5): what this world is
+ * configured to do — systems on/off, caps, account and housing limits, the champion
+ * and Felucca tables, the save/restart schedule.
+ *
+ * Two states the screen must tell apart, which is why the success type is nullable:
+ * a `null` body means the shard has **never published** a ruleset (the plugin is old,
+ * or `RulesetEnabled=false`), while the feature being switched off is a 404 folded
+ * into `ErrorKind.FEATURE_UNAVAILABLE`.
+ *
+ * Kept live by the `world.ruleset` frame, which the shard re-emits on every sidecar
+ * reconnect — so a shard that restarts with edited config updates the open screen.
+ */
+@HiltViewModel
+class RulesViewModel @Inject constructor(
+    private val repository: ShardRepository,
+) : ViewModel() {
+
+    private val _state = MutableStateFlow<UiState<RulesetDto?>>(UiState.Loading)
+    val state: StateFlow<UiState<RulesetDto?>> = _state.asStateFlow()
+
+    init {
+        load()
+        collectLive()
+    }
+
+    fun load() {
+        _state.value = UiState.Loading
+        viewModelScope.launch {
+            _state.value = repository.ruleset().toShardUiState()
+        }
+    }
+
+    private fun collectLive() {
+        viewModelScope.launch {
+            repository.liveEvents().collect { event ->
+                if (event !is ShardStreamEvent.Frame || event.kind != "world.ruleset") return@collect
+                // The frame IS the whole ruleset — replace rather than merge. A frame the
+                // app can't decode is skipped, leaving the loaded copy in place.
+                repository.rulesetFrame(event.data)?.let { _state.value = UiState.Success(it) }
+            }
+        }
+    }
+}

app/src/main/java/com/runicgateway/app/ui/shard/ShardScreen.kt

@@ -32,12 +32,33 @@ import com.runicgateway.app.ui.UiState
 import com.runicgateway.app.ui.components.ErrorView
 import com.runicgateway.app.ui.components.FeatureCard
 import com.runicgateway.app.ui.components.LoadingView
+import com.runicgateway.app.data.repository.ShardFeature
+import com.runicgateway.app.data.repository.ShardFeatures
+import com.runicgateway.app.data.repository.canSee
 import com.runicgateway.app.ui.components.PillTone
 import com.runicgateway.app.ui.components.SectionLabel
 import com.runicgateway.app.ui.components.StatusPill
 
-/** Board destinations reachable from the hub. */
+/**
-enum class ShardBoard { CHAMPS, GUILDS, GOVERNORS, HOUSES }
+ * Board destinations reachable from the hub, each tagged with the visibility feature
+ * that governs it (M11). An admin can switch any of these off or raise its audience,
+ * so the hub's board list is filtered the same way the drawer is — a tile whose
+ * feature the caller can't see would only lead to a `404`/`403`.
+ */
+enum class ShardBoard(val feature: String) {
+    CHAMPS(ShardFeature.CHAMPS),
+    GUILDS(ShardFeature.GUILDS),
+    GOVERNORS(ShardFeature.GOVERNORS),
+    HOUSES(ShardFeature.HOUSES),
+}
+
+/**
+ * The boards this viewer may reach. Pure + side-effect-free so the gating is
+ * unit-tested without Compose, exactly like `visibleEntries` for the drawer. An
+ * unknown answer shows every board — the server gates regardless (see [canSee]).
+ */
+fun visibleBoards(features: ShardFeatures?): List<ShardBoard> =
+    ShardBoard.entries.filter { canSee(features, it.feature) }
 
 /**
  * The Shard hub (PLAN.md §6.2): live connection status, online count + latest
@@ -54,6 +75,7 @@ fun ShardScreen(
     val state by viewModel.state.collectAsStateWithLifecycle()
     val feed by viewModel.feed.collectAsStateWithLifecycle()
     val connected by viewModel.connected.collectAsStateWithLifecycle()
+    val features by viewModel.shardFeatures.collectAsStateWithLifecycle()
 
     when (val s = state) {
         is UiState.Loading -> LoadingView(modifier)
@@ -62,6 +84,7 @@ fun ShardScreen(
             hub = s.data,
             feed = feed,
             connected = connected,
+            features = features,
             onOpenBoard = onOpenBoard,
             modifier = modifier,
         )
@@ -73,6 +96,7 @@ private fun HubContent(
     hub: ShardHub,
     feed: List<FeedLine>,
     connected: Boolean,
+    features: ShardFeatures?,
     onOpenBoard: (ShardBoard) -> Unit,
     modifier: Modifier = Modifier,
 ) {
@@ -82,7 +106,7 @@ private fun HubContent(
         contentPadding = androidx.compose.foundation.layout.PaddingValues(vertical = 16.dp),
     ) {
         item { StatusCard(hub.status, hub.presence?.count) }
-        item { BoardsCard(onOpenBoard) }
+        item { BoardsCard(features, onOpenBoard) }
 
         if (hub.online.isNotEmpty()) {
             item { SectionHeader(stringResource(R.string.shard_section_staff)) }
@@ -159,13 +183,16 @@ private fun StatusCard(status: ShardStatusDto, presenceCount: Int?) {
 }
 
 @Composable
-private fun BoardsCard(onOpenBoard: (ShardBoard) -> Unit) {
+private fun BoardsCard(features: ShardFeatures?, onOpenBoard: (ShardBoard) -> Unit) {
-    val boards = listOf(
+    val boards = visibleBoards(features).map { board ->
-        ShardBoard.CHAMPS to R.string.shard_nav_champs,
+        board to when (board) {
-        ShardBoard.GUILDS to R.string.shard_nav_guilds,
+            ShardBoard.CHAMPS -> R.string.shard_nav_champs
-        ShardBoard.GOVERNORS to R.string.shard_nav_governors,
+            ShardBoard.GUILDS -> R.string.shard_nav_guilds
-        ShardBoard.HOUSES to R.string.shard_nav_houses,
+            ShardBoard.GOVERNORS -> R.string.shard_nav_governors
-    )
+            ShardBoard.HOUSES -> R.string.shard_nav_houses
+        }
+    }
+    if (boards.isEmpty()) return
     Card(Modifier.fillMaxWidth()) {
         Column {
             boards.forEachIndexed { index, (board, labelRes) ->

app/src/main/java/com/runicgateway/app/ui/shard/ShardViewModel.kt

@@ -10,9 +10,11 @@ import com.runicgateway.app.core.result.ApiResult
 import com.runicgateway.app.data.api.dto.OnlineStaffDto
 import com.runicgateway.app.data.api.dto.PresenceDto
 import com.runicgateway.app.data.api.dto.ShardStatusDto
+import com.runicgateway.app.data.repository.ShardFeatures
+import com.runicgateway.app.data.repository.ShardFeaturesRepository
 import com.runicgateway.app.data.repository.ShardRepository
 import com.runicgateway.app.ui.UiState
-import com.runicgateway.app.ui.toUiState
+import com.runicgateway.app.ui.toShardUiState
 import dagger.hilt.android.lifecycle.HiltViewModel
 import kotlinx.coroutines.flow.MutableStateFlow
 import kotlinx.coroutines.flow.StateFlow
@@ -39,11 +41,18 @@ data class ShardHub(
 @HiltViewModel
 class ShardViewModel @Inject constructor(
     private val repository: ShardRepository,
+    shardFeaturesRepository: ShardFeaturesRepository,
 ) : ViewModel() {
 
     private val _state = MutableStateFlow<UiState<ShardHub>>(UiState.Loading)
     val state: StateFlow<UiState<ShardHub>> = _state.asStateFlow()
 
+    /**
+     * Which boards to offer (M11). Read-only here — the app shell refreshes this on
+     * every session change, and the hub only filters its tiles with it.
+     */
+    val shardFeatures: StateFlow<ShardFeatures?> = shardFeaturesRepository.features
+
     private val _feed = MutableStateFlow<List<FeedLine>>(emptyList())
     val feed: StateFlow<List<FeedLine>> = _feed.asStateFlow()
 
@@ -69,8 +78,8 @@ class ShardViewModel @Inject constructor(
                     seedFeed()
                 }
                 // Both error variants are ApiResult<Nothing>, so their UiState is Nothing-typed.
-                is ApiResult.HttpError -> _state.value = status.toUiState()
+                is ApiResult.HttpError -> _state.value = status.toShardUiState()
-                is ApiResult.NetworkError -> _state.value = status.toUiState()
+                is ApiResult.NetworkError -> _state.value = status.toShardUiState()
             }
         }
     }

app/src/main/res/values/strings.xml

@@ -16,6 +16,7 @@
     <string name="error_not_found">This content couldn\'t be found.</string>
     <string name="error_rate_limited">Too many requests. Please try again in a moment.</string>
     <string name="error_shard_offline">The shard is offline right now.</string>
+    <string name="error_feature_unavailable">This shard doesn\'t publish this here.</string>
     <string name="error_server">Something went wrong on the server. Please try again.</string>
 
     <!-- ── First-run connect (§3) ──────────────────────────────────────── -->
@@ -40,6 +41,10 @@
     <string name="menu_news">News</string>
     <string name="menu_wiki">Wiki</string>
     <string name="menu_shard">Shard</string>
+    <string name="menu_rules">Rules</string>
+    <string name="menu_atlas">Atlas</string>
+    <string name="menu_leaderboards">Leaderboards</string>
+    <string name="menu_market">Market</string>
     <string name="menu_about">About</string>
     <string name="menu_contact">Contact</string>
     <string name="menu_account">My account</string>
@@ -290,6 +295,11 @@
     <string name="player_char_pois">Poison</string>
     <string name="player_char_energy">Energy</string>
     <string name="player_char_skills">Skills</string>
+    <string name="player_char_points">Loyalty &amp; Points</string>
+    <!-- A point system's name followed by the character's rank on that board, e.g. "Queens Loyalty · #3". -->
+    <string name="player_char_points_ranked">%1$s · #%2$d</string>
+    <!-- A score against its cap. Only shown for capped systems; an uncapped score shows the number alone. -->
+    <string name="player_char_points_of">%1$d / %2$d</string>
     <string name="player_char_equipment">Equipment</string>
     <string name="player_char_item">Item</string>
     <string name="player_char_item_id">id %1$d</string>
@@ -376,6 +386,85 @@
     <string name="guilds_leader">Led by %1$s</string>
     <string name="guilds_alliance">Alliance: %1$s</string>
 
+    <!-- ── Rules / ruleset (Protocol 3.0 §5, M11) ──────────────────────── -->
+    <!-- A successful read of a shard that has never published its ruleset — NOT the same
+         as the feature being switched off, which renders as an error state. -->
+    <string name="rules_unpublished">This shard hasn\'t published its ruleset yet.</string>
+    <string name="rules_section_shard">Shard</string>
+    <string name="rules_section_systems">Systems</string>
+    <string name="rules_section_caps">Skill &amp; stat caps</string>
+    <string name="rules_section_accounts">Accounts &amp; housing</string>
+    <string name="rules_section_vendors">Vendors</string>
+    <string name="rules_section_schedule">Saves &amp; restarts</string>
+    <string name="rules_name">Name</string>
+    <string name="rules_expansion">Expansion</string>
+    <string name="rules_connect">Connect</string>
+    <string name="rules_skill_cap">Individual skill cap</string>
+    <string name="rules_total_skill_cap">Total skill cap</string>
+    <string name="rules_stat_cap">Total stat cap</string>
+    <string name="rules_str_cap">Strength cap</string>
+    <string name="rules_dex_cap">Dexterity cap</string>
+    <string name="rules_int_cap">Intelligence cap</string>
+    <string name="rules_char_slots">Character slots</string>
+    <string name="rules_per_ip">Accounts per IP</string>
+    <string name="rules_house_limit">Houses per account</string>
+    <string name="rules_restock_delay">Vendor restock delay</string>
+    <string name="rules_max_sell">Max sell quantity</string>
+    <string name="rules_autosave">Auto-save every</string>
+    <string name="rules_autorestart">Auto-restart at</string>
+    <string name="rules_minutes">%1$d min</string>
+
+    <!-- ── Leaderboards (Protocol 3.0 §7, M11) ─────────────────────────── -->
+    <string name="leaderboards_empty">This shard isn\'t publishing any leaderboards yet.</string>
+    <string name="leaderboards_board_empty">Nobody has scored here yet.</string>
+    <!-- Where a score would sit on the placeholder row of an unscored board. An em
+         dash, not "0" — nobody has scored zero, nobody has scored at all. -->
+    <string name="leaderboards_no_score">—</string>
+    <string name="leaderboards_players">%1$d players</string>
+    <!-- Only shown for capped systems; most systems on a real shard are uncapped. -->
+    <string name="leaderboards_cap">Cap: %1$d</string>
+    <string name="leaderboards_rank_name">#%1$d  %2$s</string>
+    <!-- A shard may publish standings without naming who holds them (the board's one
+         admin-configurable field). -->
+    <string name="leaderboards_hidden_name">Someone</string>
+
+    <!-- ── Market (Protocol 3.0 §8, M11) ───────────────────────────────── -->
+    <string name="market_search_label">Search every shop</string>
+    <string name="market_empty">No listings match that search.</string>
+    <string name="market_shop_empty">This shop has nothing for sale.</string>
+    <!-- Required, not decoration: the shard sweeps vendors round-robin, so a price can
+         legitimately be a full cycle old. -->
+    <string name="market_staleness">Prices are refreshed in rotation and may be out of date.</string>
+    <string name="market_price">%1$d gp</string>
+    <string name="market_unnamed_item">Item %1$d</string>
+    <string name="market_unnamed_shop">A shop</string>
+    <string name="market_owner">Kept by %1$s</string>
+    <!-- A gated location is a real answer: the shop exists, the shard just doesn't say
+         where it stands. -->
+    <string name="market_location_hidden">This shard doesn\'t publish shop locations.</string>
+    <string name="market_truncated">Showing %1$d of %2$d — this shop holds more than the shard publishes.</string>
+
+    <!-- ── Spawn atlas (Protocol 3.0 §6, M11) ──────────────────────────── -->
+    <string name="atlas_search_label">Search creatures</string>
+    <string name="atlas_empty">No creatures match that search.</string>
+    <!-- A place can legitimately hold a single spawner, and the aggregate list is full
+         of them — "1 spawners" on every other row is worth a plural for. -->
+    <plurals name="atlas_spawner_count">
+        <item quantity="one">%1$d spawner</item>
+        <item quantity="other">%1$d spawners</item>
+    </plurals>
+    <string name="atlas_total_alive">Up to %1$d alive at once</string>
+    <string name="atlas_facet_count">%1$s (%2$d)</string>
+    <!-- The aggregate: "where is it", as opposed to the raw coordinates below it. -->
+    <string name="atlas_section_places">Where it spawns</string>
+    <string name="atlas_place_max_alive">up to %1$d at once</string>
+    <string name="atlas_section_spawners">Spawn points</string>
+    <string name="atlas_section_also_here">Also spawns here</string>
+    <string name="atlas_spawners_truncated">More spawn points than shown.</string>
+    <string name="atlas_max_count">Up to %1$d</string>
+    <!-- The delay is already in seconds; the server normalizes XmlSpawner's mixed units. -->
+    <string name="atlas_respawn">Respawn %1$s</string>
+
     <!-- ── Governors (§6.2) ────────────────────────────────────────────── -->
     <string name="governors_empty">No governors — this shard may not run the City Loyalty system.</string>
     <string name="governor_current">Governed by %1$s</string>

app/src/test/java/com/runicgateway/app/data/api/dto/PlayerShardDtoTest.kt

@@ -7,6 +7,7 @@ import kotlinx.serialization.json.Json
 import kotlinx.serialization.json.jsonPrimitive
 import org.junit.Assert.assertEquals
 import org.junit.Assert.assertNotNull
+import org.junit.Assert.assertNull
 import org.junit.Assert.assertTrue
 import org.junit.Test
 
@@ -99,4 +100,57 @@ class PlayerShardDtoTest {
         assertTrue(dto.linked)
         assertEquals("whitlocktech", dto.account)
     }
+
+    // ── Protocol 3.0 additions to char.profile ───────────────────────────
+
+    @Test fun charProfileDecodesThePointsBlock() {
+        // Shaped like a real shard's reply: an uncapped board (maxPoints 0), a
+        // cliloc-named board (nameString null), and no `rank` unless opted in.
+        val dto = json.decodeFromString<CharProfileDto>(
+            """{"serial":"0x24C","name":"Darrow",
+               "points":[{"system":"QueensLoyalty","nameString":"Queen's Loyalty",
+                          "points":29500,"maxPoints":30000,"rank":3},
+                         {"system":"VoidPool","nameString":null,"points":180,"maxPoints":0}]}""",
+        )
+        assertEquals(2, dto.points.size)
+        val queens = dto.points[0]
+        assertEquals("Queen's Loyalty", queens.nameString)
+        assertEquals(29500L, queens.points)
+        assertEquals(30000L, queens.cap)
+        assertEquals(3, queens.rank)
+
+        val voidPool = dto.points[1]
+        assertNull("maxPoints 0 means uncapped, not a zero cap", voidPool.cap)
+        assertNull("rank is absent unless the shard opts in", voidPool.rank)
+        assertNull(voidPool.nameString)
+    }
+
+    @Test fun charProfileWithoutAPointsBlockDecodesToEmpty() {
+        // A shard plugin that predates Protocol 3.0 sends no `points` key at all.
+        val dto = json.decodeFromString<CharProfileDto>("""{"serial":"0x24C","name":"Darrow"}""")
+        assertEquals(emptyList<CharPointsDto>(), dto.points)
+    }
+
+    @Test fun equipmentDecodesTheServerResolvedClilocName() {
+        val dto = json.decodeFromString<CharProfileDto>(
+            """{"serial":"0x24C",
+               "equipment":[{"serial":"0x40","layer":"OneHanded","itemId":5040,"cliloc":1023721,
+                             "clilocName":"hatchet"},
+                            {"serial":"0x41","layer":"Shirt","name":"Bob's lucky shirt",
+                             "clilocName":"fancy shirt"}]}""",
+        )
+        assertEquals("hatchet", dto.equipment[0].label)
+        assertEquals("Bob's lucky shirt", dto.equipment[1].label)
+    }
+
+    @Test fun titlesDecodeTheParallelResolvedArrayIncludingItsNulls() {
+        // rewardResolved carries a null where the cliloc table had nothing; the array
+        // must stay positionally aligned with `reward`.
+        val dto = json.decodeFromString<TitlesDto>(
+            """{"selected":1,"reward":["1049565","1049566"],
+               "rewardResolved":[null,"Knight of Trinsic"]}""",
+        )
+        assertEquals(listOf("1049565", "1049566"), dto.reward)
+        assertEquals(listOf(null, "Knight of Trinsic"), dto.rewardResolved)
+    }
 }

app/src/test/java/com/runicgateway/app/data/api/dto/ShardContentDtoTest.kt

@@ -0,0 +1,153 @@
+/*
+ * SPDX-License-Identifier: GPL-3.0-or-later
+ */
+package com.runicgateway.app.data.api.dto
+
+import kotlinx.serialization.json.Json
+import org.junit.Assert.assertEquals
+import org.junit.Assert.assertNull
+import org.junit.Assert.assertTrue
+import org.junit.Test
+
+/**
+ * Decode tests for the four Protocol 3.0 content DTOs, against payloads captured from a
+ * **live** server rather than hand-written to match the Kotlin types.
+ *
+ * These exist because the fakes in `data/api/fake/` construct DTOs directly, so no test
+ * in the suite ever fed one real JSON — and `AtlasCreatureDto.places` shipped typed
+ * `List<String>` while the server sends objects. That decodes to an exception, the
+ * screen renders "something went wrong on the server", and 336 green tests say nothing.
+ * Nullable-with-defaults protects against a *missing* field, never a *wrong type*.
+ */
+class ShardContentDtoTest {
+
+    private val json = Json {
+        ignoreUnknownKeys = true
+        explicitNulls = false
+        coerceInputValues = true
+    }
+
+    // ── Spawn atlas (§6) ─────────────────────────────────────────────────
+
+    /** Trimmed from `GET /api/v1/public/atlas/creatures/seaserpent` on a real shard. */
+    private val seaSerpent = """
+        {"slug":"seaserpent","name":"SeaSerpent","total":6048,"points":477,
+         "facets":{"Felucca":237,"Trammel":240},"art":"seaserpent.png",
+         "places":[{"facet":"Felucca","label":"Wilderness","spawners":91,"maxAlive":1194},
+                   {"facet":"Trammel","label":"Britain","spawners":12,"maxAlive":96}],
+         "spawners":[{"id":1617,"facet":"Felucca","name":"SeaLife#68","x":1691,"y":1623,
+                      "width":350,"height":350,"range":175,"maxCount":15,"minDelay":300,
+                      "maxDelay":600,"todStart":0,"todEnd":0,"todMode":0,
+                      "region":"Britain","landmark":null,"label":"Britain"}],
+         "spawnersTruncated":true,
+         "alsoHere":[{"slug":"waterelemental","name":"WaterElemental","shared":242}]}
+    """.trimIndent()
+
+    @Test fun atlasCreatureDetailDecodesTheRealPayload() {
+        val creature = json.decodeFromString<AtlasCreatureDto>(seaSerpent)
+
+        assertEquals("seaserpent", creature.slug)
+        assertEquals(6048, creature.total)
+        assertEquals(477, creature.points)
+        assertEquals(240, creature.facets["Trammel"])
+        assertTrue(creature.spawnersTruncated)
+        assertEquals("seaserpent.png", creature.art)
+    }
+
+    @Test fun atlasPlacesAreObjectsNotStrings() {
+        // The regression. `places` is the aggregate the screen exists to show, and it
+        // arrives as {facet,label,spawners,maxAlive} — never as a bare place name.
+        val places = json.decodeFromString<AtlasCreatureDto>(seaSerpent).places
+
+        assertEquals(2, places.size)
+        assertEquals("Wilderness", places[0].label)
+        assertEquals("Felucca", places[0].facet)
+        assertEquals(91, places[0].spawners)
+        assertEquals(1194, places[0].maxAlive)
+    }
+
+    @Test fun atlasCreatureSurvivesAProjectedOrEmptyPayload() {
+        // The search route sends no `places`/`spawners`/`art`, and the visibility
+        // framework can drop any field from any of them.
+        val lean = json.decodeFromString<AtlasCreatureDto>("""{"slug":"orc"}""")
+        assertEquals("orc", lean.slug)
+        assertTrue(lean.places.isEmpty())
+        assertTrue(lean.spawners.isEmpty())
+        assertNull(lean.art)
+
+        val bare = json.decodeFromString<AtlasCreatureDto>("""{"places":[{}]}""")
+        assertNull(bare.places[0].label)
+        assertNull(bare.places[0].spawners)
+    }
+
+    // ── Market (§8) ──────────────────────────────────────────────────────
+
+    @Test fun marketListingDecodesWithItsNestedVendorAndLocation() {
+        // `location` nests on the wire so one visibility rule covers map/x/y/region/house.
+        val listing = json.decodeFromString<MarketListingDto>(
+            """{"serial":"0x40014A57","itemId":3937,"hue":1878,"amount":1,"price":115,
+                "name":null,"cliloc":1023937,"displayName":"longsword","child":false,
+                "vendor":{"serial":"0x2CB","shopName":"Seed Shop 225","ownerSerial":"0x201",
+                          "ownerName":"Seed004A",
+                          "location":{"map":"Felucca","x":1562,"y":1604,"z":0,
+                                      "region":"Britain","house":"Seed House 4"}}}""",
+        )
+
+        assertEquals("longsword", listing.displayName)
+        assertEquals(115L, listing.price)
+        assertEquals("Seed Shop 225", listing.vendor?.shopName)
+        assertEquals("Felucca", listing.vendor?.location?.map)
+    }
+
+    @Test fun marketListingSurvivesTheFieldsAVisitorMayNotSee() {
+        // Below the `staff` rung the server omits ownerName/ownerSerial, and below
+        // `player` the whole nested location. Neither may break the decode.
+        val projected = json.decodeFromString<MarketListingDto>(
+            """{"serial":"0x40014A57","price":115,"displayName":"longsword",
+                "vendor":{"serial":"0x2CB","shopName":"Seed Shop 225"}}""",
+        )
+
+        assertEquals("Seed Shop 225", projected.vendor?.shopName)
+        assertNull(projected.vendor?.ownerName)
+        assertNull(projected.vendor?.location)
+    }
+
+    // ── Points boards (§7) ───────────────────────────────────────────────
+
+    @Test fun pointsBoardDecodesAnEmptyBoardAndItsCap() {
+        // A shard with nothing scored yet is the common case, not an error, and
+        // maxPoints 0 is the "uncapped" sentinel rather than a cap of zero.
+        val board = json.decodeFromString<PointsBoardDto>(
+            """{"kind":"points.board","system":"QueensLoyalty","nameNumber":1095163,
+                "nameString":null,"players":0,"maxPoints":15000,"showOnGump":true,
+                "top":[],"t":1785556444154,"updatedAt":"2026-08-01T03:54:04.000Z"}""",
+        )
+
+        assertEquals("QueensLoyalty", board.system)
+        assertEquals(15000L, board.maxPoints)
+        assertNull(board.nameString)
+        assertTrue(board.top.isEmpty())
+    }
+
+    // ── Ruleset (§5) ─────────────────────────────────────────────────────
+
+    @Test fun rulesetDecodesTheNestedSectionsAndTolerantlySkipsUnknownOnes() {
+        // The frame is built from an allowlist that grows with the shard's config; a
+        // key this client has never heard of must not break the rules page.
+        val ruleset = json.decodeFromString<RulesetDto>(
+            """{"kind":"world.ruleset","shard":"My Shard","expansion":"EJ",
+                "caps":{"skill":1000,"totalSkill":7000,"stat":225,"str":125},
+                "systems":{"factions":false,"vvv":true,"siege":false},
+                "accounts":{"charSlots":7,"perIp":3},
+                "somethingAddedLater":{"nested":true}}""",
+        )
+
+        assertEquals("My Shard", ruleset.shard)
+        assertEquals("EJ", ruleset.expansion)
+        // Caps arrive in tenths; the DTO's computed property is what the screen shows.
+        assertEquals(7000, ruleset.caps?.totalSkill)
+        assertEquals(700.0, ruleset.caps?.totalSkillCap!!, 0.0)
+        assertEquals(false, ruleset.systems["factions"])
+        assertEquals(true, ruleset.systems["vvv"])
+    }
+}

app/src/test/java/com/runicgateway/app/data/api/dto/ShardDtoTest.kt

@@ -111,4 +111,30 @@ class ShardDtoTest {
         assertEquals("bob", ActorDto(acct = "bob").label)
         assertEquals("Someone", ActorDto().label)
     }
+
+    @Test fun actorArrivesWithoutAcctOrWebIdBelowTheAdminRung() {
+        // Those two fields are locked to `admin` by the visibility framework and are
+        // stripped from every response below it — the app must decode their absence,
+        // not depend on them (docs/link/v3.md §3.4 rule 1).
+        val dto = json.decodeFromString<ActorDto>("""{"serial":"0x24C","name":"Darrow","player":true}""")
+        assertEquals("Darrow", dto.label)
+        assertNull(dto.acct)
+        assertNull(dto.webId)
+    }
+
+    @Test fun shardFeaturesDecodesTheRungAndVisibleSet() {
+        val dto = json.decodeFromString<ShardFeaturesDto>(
+            """{"level":"player","features":["status","champs","guilds","market"]}""",
+        )
+        assertEquals("player", dto.level)
+        assertTrue(dto.features.contains("market"))
+        assertEquals(4, dto.features.size)
+    }
+
+    @Test fun shardFeaturesDecodesAnEmptySet() {
+        // A fully-gated shard: every feature switched off for this viewer. Distinct
+        // from the lookup failing, which the repository represents as null.
+        val dto = json.decodeFromString<ShardFeaturesDto>("""{"level":"anonymous","features":[]}""")
+        assertEquals(emptyList<String>(), dto.features)
+    }
 }

app/src/test/java/com/runicgateway/app/data/api/fake/FakePublicApi.kt

@@ -18,6 +18,15 @@ import com.runicgateway.app.data.api.dto.PageDto
 import com.runicgateway.app.data.api.dto.PostDto
 import com.runicgateway.app.data.api.dto.PresenceDto
 import com.runicgateway.app.data.api.dto.SettingsDto
+import com.runicgateway.app.data.api.dto.AtlasCreatureDto
+import com.runicgateway.app.data.api.dto.AtlasCreaturePageDto
+import com.runicgateway.app.data.api.dto.AtlasMetaDto
+import com.runicgateway.app.data.api.dto.MarketMetaDto
+import com.runicgateway.app.data.api.dto.MarketPageDto
+import com.runicgateway.app.data.api.dto.MarketVendorDto
+import com.runicgateway.app.data.api.dto.PointsBoardDto
+import com.runicgateway.app.data.api.dto.RulesetDto
+import com.runicgateway.app.data.api.dto.ShardFeaturesDto
 import com.runicgateway.app.data.api.dto.ShardStatusDto
 import com.runicgateway.app.data.api.dto.StatusDto
 import com.runicgateway.app.data.api.dto.WikiCategoryDto
@@ -56,6 +65,25 @@ class FakePublicApi : PublicApi {
     var governors: List<GovernorDto> = emptyList()
     var governorHistory: List<GovernorTermDto> = emptyList()
     var houses: List<HouseDto> = emptyList()
+    var shardFeatures: ShardFeaturesDto = ShardFeaturesDto()
+
+    // Protocol 3.0 content (M11). `ruleset` is nullable on the wire: null means the
+    // shard has never published one, which is a success, not a failure.
+    var ruleset: RulesetDto? = null
+    var pointsBoards: List<PointsBoardDto> = emptyList()
+    var pointsBoard: PointsBoardDto = PointsBoardDto()
+    var market: MarketPageDto = MarketPageDto()
+    var marketMeta: MarketMetaDto = MarketMetaDto()
+    var marketVendor: MarketVendorDto = MarketVendorDto()
+    var atlasCreatures: AtlasCreaturePageDto = AtlasCreaturePageDto()
+    var atlasCreature: AtlasCreatureDto = AtlasCreatureDto()
+    var atlasMeta: AtlasMetaDto = AtlasMetaDto()
+
+    /** Last market query seen, so a test can assert blanks were dropped. */
+    var lastMarketQuery: String? = null
+
+    /** Last atlas facet filter seen. */
+    var lastAtlasFacet: String? = null
 
     /** Last contact request body seen (so a test can assert it was trimmed/forwarded). */
     var lastContact: ContactRequest? = null
@@ -84,6 +112,41 @@ class FakePublicApi : PublicApi {
         return reply(contactResponse)
     }
 
+    override suspend fun getShardFeatures(): ShardFeaturesDto = reply(shardFeatures)
+    override suspend fun getShardRuleset(): RulesetDto? = reply(ruleset)
+    override suspend fun getShardPoints(): List<PointsBoardDto> = reply(pointsBoards)
+    override suspend fun getShardPointsBoard(system: String): PointsBoardDto = reply(pointsBoard)
+
+    override suspend fun getShardMarket(
+        query: String?,
+        minPrice: Long?,
+        maxPrice: Long?,
+        map: String?,
+        region: String?,
+        sort: String?,
+        limit: Int?,
+        offset: Int?,
+    ): MarketPageDto {
+        lastMarketQuery = query
+        return reply(market)
+    }
+
+    override suspend fun getShardMarketMeta(): MarketMetaDto = reply(marketMeta)
+    override suspend fun getShardMarketVendor(serial: String, limit: Int?, offset: Int?): MarketVendorDto =
+        reply(marketVendor)
+
+    override suspend fun getAtlasCreatures(
+        query: String?,
+        facet: String?,
+        limit: Int?,
+        offset: Int?,
+    ): AtlasCreaturePageDto {
+        lastAtlasFacet = facet
+        return reply(atlasCreatures)
+    }
+
+    override suspend fun getAtlasCreature(slug: String): AtlasCreatureDto = reply(atlasCreature)
+    override suspend fun getAtlasMeta(): AtlasMetaDto = reply(atlasMeta)
     override suspend fun getShardStatus(): ShardStatusDto = reply(shardStatus)
     override suspend fun getShardFeed(kind: String?, limit: Int?): List<FeedEventDto> = reply(shardFeed)
     override suspend fun getShardEconomy(limit: Int?): List<EconomySampleDto> = reply(shardEconomy)

app/src/test/java/com/runicgateway/app/data/repository/ShardFeaturesRepositoryTest.kt

@@ -0,0 +1,104 @@
+/*
+ * SPDX-License-Identifier: GPL-3.0-or-later
+ */
+package com.runicgateway.app.data.repository
+
+import com.runicgateway.app.data.api.dto.ShardFeaturesDto
+import com.runicgateway.app.data.api.fake.FakePublicApi
+import com.runicgateway.app.util.httpError
+import kotlinx.coroutines.test.runTest
+import org.junit.Assert.assertEquals
+import org.junit.Assert.assertFalse
+import org.junit.Assert.assertNull
+import org.junit.Assert.assertTrue
+import org.junit.Test
+import java.io.IOException
+
+/**
+ * The shard-visibility lookup (PLAN.md §9 M11). The behavior worth pinning is the
+ * FAIL-OPEN direction: an unknown answer must show every entry, because the server
+ * gates every call regardless and the alternative is a menu that flickers in.
+ */
+class ShardFeaturesRepositoryTest {
+
+    private val api = FakePublicApi()
+    private val repository = ShardFeaturesRepository(api)
+
+    @Test fun refreshPublishesTheVisibleSetAndTheServersRung() = runTest {
+        api.shardFeatures = ShardFeaturesDto(
+            level = "player",
+            features = listOf("status", "champs", "market"),
+        )
+
+        repository.refresh()
+
+        val features = repository.features.value
+        assertEquals("player", features?.level)
+        assertEquals(setOf("status", "champs", "market"), features?.visible)
+    }
+
+    @Test fun aFeatureTheServerOmittedIsNotVisible() = runTest {
+        api.shardFeatures = ShardFeaturesDto(level = "anonymous", features = listOf("status"))
+
+        repository.refresh()
+
+        assertTrue(canSee(repository.features.value, ShardFeature.STATUS))
+        assertFalse(canSee(repository.features.value, ShardFeature.MARKET))
+    }
+
+    @Test fun aFailedLookupFallsBackToUnknownRatherThanEmpty() = runTest {
+        // Empty and unknown are opposite answers: empty hides everything, unknown
+        // shows everything. A failure must never be read as "this shard publishes
+        // nothing".
+        api.error = IOException("offline")
+
+        repository.refresh()
+
+        assertNull(repository.features.value)
+        assertTrue(canSee(repository.features.value, ShardFeature.MARKET))
+    }
+
+    @Test fun aPreProtocol3WebsiteIs404AndReadsAsUnknown() = runTest {
+        // The route does not exist before Protocol 3.0. That site has no visibility
+        // framework at all, so "unknown" is exactly right and the menu behaves as it
+        // did before M11.
+        api.error = httpError(404)
+
+        repository.refresh()
+
+        assertNull(repository.features.value)
+        assertTrue(canSee(repository.features.value, ShardFeature.CHAMPS))
+    }
+
+    @Test fun aFailedRefreshClearsAPreviouslyGoodAnswer() = runTest {
+        api.shardFeatures = ShardFeaturesDto(level = "admin", features = listOf("status"))
+        repository.refresh()
+        assertEquals(setOf("status"), repository.features.value?.visible)
+
+        // Signing out and failing to re-resolve must not leave the previous viewer's
+        // (possibly wider) answer in place.
+        api.error = httpError(500)
+        repository.refresh()
+
+        assertNull(repository.features.value)
+    }
+
+    @Test fun invalidateDropsTheCachedAnswer() = runTest {
+        api.shardFeatures = ShardFeaturesDto(level = "staff", features = listOf("houses"))
+        repository.refresh()
+        assertEquals("staff", repository.features.value?.level)
+
+        // A Settings → Server switch: the answer belonged to the old host.
+        repository.invalidate()
+
+        assertNull(repository.features.value)
+    }
+
+    @Test fun canSeeTreatsUnknownAsVisibleAndEmptyAsHidden() {
+        assertTrue("unknown must fail open", canSee(null, ShardFeature.RULESET))
+        assertFalse(
+            "an explicit empty set hides everything",
+            canSee(ShardFeatures(level = "anonymous", visible = emptySet()), ShardFeature.RULESET),
+        )
+    }
+}

app/src/test/java/com/runicgateway/app/ui/UiStateTest.kt

@@ -4,7 +4,9 @@
 package com.runicgateway.app.ui
 
 import com.runicgateway.app.core.result.ApiResult
+import com.runicgateway.app.ui.components.isRetryable
 import org.junit.Assert.assertEquals
+import org.junit.Assert.assertFalse
 import org.junit.Assert.assertTrue
 import org.junit.Test
 import java.io.IOException
@@ -34,6 +36,44 @@ class UiStateTest {
         assertTrue(ApiResult.HttpError(503).let { it.status == 503 })
     }
 
+    // ── Shard reads: 404/403 mean "this shard doesn't publish it" (M11) ──
+
+    @Test fun shardReadsTreat404And403AsFeatureUnavailable() {
+        // requireFeature answers 404 for a disabled feature (deliberately not
+        // disclosing that it exists) and 403 for a viewer below its audience rung.
+        assertEquals(ErrorKind.FEATURE_UNAVAILABLE, shardKindOf(404))
+        assertEquals(ErrorKind.FEATURE_UNAVAILABLE, shardKindOf(403))
+    }
+
+    @Test fun shardReadsLeaveEveryOtherStatusAlone() {
+        assertEquals(ErrorKind.SHARD_OFFLINE, shardKindOf(503))
+        assertEquals(ErrorKind.RATE_LIMITED, shardKindOf(429))
+        assertEquals(ErrorKind.SERVER, shardKindOf(500))
+        assertEquals(
+            ErrorKind.NETWORK,
+            (ApiResult.NetworkError(IOException()).toShardUiState() as UiState.Error).kind,
+        )
+        assertEquals(UiState.Success("hi"), ApiResult.Ok("hi").toShardUiState())
+    }
+
+    @Test fun nonShardReadsKeep404AsNotFound() {
+        // The remap is scoped to shard routes on purpose: off them, a 404 is still a
+        // deleted post or an unknown wiki slug.
+        assertEquals(ErrorKind.NOT_FOUND, kindOf(404))
+    }
+
+    @Test fun anUnavailableFeatureIsNotRetryable() {
+        // An admin controls this, so a retry button would read as a transient failure
+        // the user could wait out.
+        assertFalse(isRetryable(ErrorKind.FEATURE_UNAVAILABLE))
+        for (kind in ErrorKind.entries.filter { it != ErrorKind.FEATURE_UNAVAILABLE }) {
+            assertTrue("$kind should offer a retry", isRetryable(kind))
+        }
+    }
+
     private fun kindOf(status: Int): ErrorKind =
         (ApiResult.HttpError(status).toUiState() as UiState.Error).kind
+
+    private fun shardKindOf(status: Int): ErrorKind =
+        (ApiResult.HttpError(status).toShardUiState() as UiState.Error).kind
 }

app/src/test/java/com/runicgateway/app/ui/navigation/MenuFeatureGatingTest.kt

@@ -0,0 +1,108 @@
+/*
+ * SPDX-License-Identifier: GPL-3.0-or-later
+ */
+package com.runicgateway.app.ui.navigation
+
+import com.runicgateway.app.core.auth.Role
+import com.runicgateway.app.core.auth.Session
+import com.runicgateway.app.core.auth.SessionUser
+import com.runicgateway.app.data.repository.ShardFeature
+import com.runicgateway.app.data.repository.ShardFeatures
+import com.runicgateway.app.ui.shard.ShardBoard
+import com.runicgateway.app.ui.shard.visibleBoards
+import org.junit.Assert.assertEquals
+import org.junit.Assert.assertFalse
+import org.junit.Assert.assertTrue
+import org.junit.Test
+
+/**
+ * The second gate on a shard entry (PLAN.md §5, §9 M11): the shard's admin-configured
+ * visibility, independent of the session role. A signed-in admin still doesn't see a
+ * board the shard doesn't publish, and an anonymous visitor still doesn't see a
+ * signed-in entry however wide the feature config is.
+ */
+class MenuFeatureGatingTest {
+
+    private fun signedIn(role: Role) =
+        Session.SignedIn(SessionUser(id = 1, username = "u", role = role))
+
+    private fun features(vararg visible: String) =
+        ShardFeatures(level = "anonymous", visible = visible.toSet())
+
+    private val shardEntry = MenuEntry("shard", 0, MenuAccess.PUBLIC, feature = ShardFeature.STATUS)
+    private val plainEntry = MenuEntry("news", 0, MenuAccess.PUBLIC)
+
+    @Test fun aShardEntryHidesWhenItsFeatureIsNotVisible() {
+        val entries = listOf(plainEntry, shardEntry)
+
+        val visible = visibleEntries(entries, Session.SignedOut, features("champs")).map { it.route }
+
+        assertEquals(listOf("news"), visible)
+    }
+
+    @Test fun aShardEntryShowsWhenItsFeatureIsVisible() {
+        val entries = listOf(plainEntry, shardEntry)
+
+        val visible = visibleEntries(entries, Session.SignedOut, features("status")).map { it.route }
+
+        assertEquals(listOf("news", "shard"), visible)
+    }
+
+    @Test fun unknownFeaturesShowEverythingTheRoleAllows() {
+        // Fail open while the lookup is in flight or has failed — the server gates
+        // regardless, so a link that briefly 403s beats a nav that flickers in.
+        val entries = listOf(plainEntry, shardEntry)
+
+        val visible = visibleEntries(entries, Session.SignedOut, features = null).map { it.route }
+
+        assertEquals(listOf("news", "shard"), visible)
+    }
+
+    @Test fun theTwoGatesAreIndependent() {
+        val staffShardEntry = MenuEntry("s", 0, MenuAccess.STAFF, feature = ShardFeature.HOUSES)
+        val entries = listOf(staffShardEntry)
+
+        // Right role, feature switched off → hidden.
+        assertTrue(visibleEntries(entries, signedIn(Role.ADMIN), features("champs")).isEmpty())
+        // Feature on, wrong role → hidden.
+        assertTrue(visibleEntries(entries, signedIn(Role.PLAYER), features("houses")).isEmpty())
+        // Both → shown.
+        assertFalse(visibleEntries(entries, signedIn(Role.ADMIN), features("houses")).isEmpty())
+    }
+
+    @Test fun anAdminDoesNotBypassAFeatureGate() {
+        // The rung the server placed the caller on is what /features already accounts
+        // for. A staff role is not a licence to render a link to a disabled feature —
+        // a disabled feature 404s for everyone.
+        val entries = listOf(shardEntry)
+
+        assertTrue(visibleEntries(entries, signedIn(Role.ADMIN), features()).isEmpty())
+    }
+
+    @Test fun everyShardMenuEntryDeclaresAFeature() {
+        // A shard-derived entry with no feature name silently skips the gate. The app
+        // menu's only such entry today is the Shard hub; this fails if one is added
+        // without one.
+        val shardRoutes = APP_MENU.filter { it.route == Routes.SHARD }
+        assertTrue(shardRoutes.isNotEmpty())
+        assertTrue(shardRoutes.all { it.feature != null })
+    }
+
+    // ── The hub's board tiles use the same gate ──────────────────────────
+    @Test fun hubBoardsAreFilteredByFeature() {
+        val visible = visibleBoards(features("champs", "houses"))
+
+        assertEquals(listOf(ShardBoard.CHAMPS, ShardBoard.HOUSES), visible)
+    }
+
+    @Test fun hubBoardsShowAllWhenTheAnswerIsUnknown() {
+        assertEquals(ShardBoard.entries.toList(), visibleBoards(null))
+    }
+
+    @Test fun eachBoardMapsToItsOwnFeature() {
+        assertEquals(ShardFeature.CHAMPS, ShardBoard.CHAMPS.feature)
+        assertEquals(ShardFeature.GUILDS, ShardBoard.GUILDS.feature)
+        assertEquals(ShardFeature.GOVERNORS, ShardBoard.GOVERNORS.feature)
+        assertEquals(ShardFeature.HOUSES, ShardBoard.HOUSES.feature)
+    }
+}

app/src/test/java/com/runicgateway/app/ui/player/CharacterSheetHelpersTest.kt

@@ -3,14 +3,18 @@
  */
 package com.runicgateway.app.ui.player
 
+import com.runicgateway.app.data.api.dto.CharPointsDto
+import com.runicgateway.app.data.api.dto.CharProfileDto
+import com.runicgateway.app.data.api.dto.EquipmentDto
 import com.runicgateway.app.data.api.dto.TitlesDto
 import org.junit.Assert.assertEquals
+import org.junit.Assert.assertNull
 import org.junit.Test
 
 /**
  * Unit tests for the character-sheet display helpers (PLAN.md §6.3), mirroring the
- * website's `CharacterSheet.jsx#displayTitles`: fame/karma + skill + a *literal*
+ * website's `CharacterSheet.jsx`: title selection over the server's cliloc-resolved
- * selected reward title, dropping bare cliloc numbers the app can't resolve.
+ * parallel array, item naming precedence, and the Protocol 3.0 points block.
  */
 class CharacterSheetHelpersTest {
 
@@ -51,4 +55,100 @@ class CharacterSheetHelpersTest {
         val titles = TitlesDto(selected = 0, reward = listOf("The Great"), fameKarma = "The Great")
         assertEquals(listOf("The Great"), displayTitles(titles))
     }
+
+    // ── Cliloc-resolved titles (Protocol 3.0 §8.6) ───────────────────────
+
+    @Test fun displayTitlesPrefersTheServerResolvedRewardName() {
+        // The website resolves the numeric entries against its own cliloc table and
+        // sends a parallel array; the raw number is no longer the only thing we have.
+        val titles = TitlesDto(
+            selected = 0,
+            reward = listOf("1049565"),
+            rewardResolved = listOf("Knight of Trinsic"),
+        )
+        assertEquals(listOf("Knight of Trinsic"), displayTitles(titles))
+    }
+
+    @Test fun displayTitlesKeepsSelectedAlignedWhenAnEntryDoesNotResolve() {
+        // rewardResolved is POSITIONAL. An entry the table had nothing for is null and
+        // must be skipped WITHOUT shifting `selected` onto its neighbour — otherwise
+        // the sheet confidently shows the wrong title.
+        val titles = TitlesDto(
+            selected = 1,
+            reward = listOf("1049565", "1049566"),
+            rewardResolved = listOf(null, "Knight of Trinsic"),
+        )
+        assertEquals(listOf("Knight of Trinsic"), displayTitles(titles))
+    }
+
+    @Test fun displayTitlesFallsBackWhenTheSelectedTitleDidNotResolve() {
+        val titles = TitlesDto(
+            selected = 0,
+            reward = listOf("1049565", "1049566"),
+            rewardResolved = listOf(null, "Bane of Dragons"),
+        )
+        assertEquals(listOf("Bane of Dragons"), displayTitles(titles))
+    }
+
+    @Test fun displayTitlesStillSkipsNumbersWhenNothingResolved() {
+        // A shard that configures no cliloc table sends no rewardResolved at all —
+        // the pre-3.0 behavior, unchanged.
+        val titles = TitlesDto(selected = 0, reward = listOf("1049565"), rewardResolved = emptyList())
+        assertEquals(emptyList<String>(), displayTitles(titles))
+    }
+
+    // ── Equipment names ──────────────────────────────────────────────────
+
+    @Test fun itemLabelPrefersAPlayerGivenNameOverTheResolvedTypeName() {
+        // "Bob's lucky axe" must not be relabelled "hatchet".
+        val item = EquipmentDto(layer = "OneHanded", name = "Bob's lucky axe", clilocName = "hatchet")
+        assertEquals("Bob's lucky axe", item.label)
+    }
+
+    @Test fun itemLabelFallsBackThroughClilocNameThenLayer() {
+        assertEquals("hatchet", EquipmentDto(layer = "OneHanded", clilocName = "hatchet").label)
+        assertEquals("OneHanded", EquipmentDto(layer = "OneHanded").label)
+        assertNull(EquipmentDto().label)
+    }
+
+    // ── Loyalty & points (Protocol 3.0 §7.3) ─────────────────────────────
+
+    @Test fun pointsLabelUsesTheHumanisedKeyWhenTheNameIsACliloc() {
+        // The PRIMARY path on a real shard: most systems name themselves with a
+        // cliloc, so nameString comes back null.
+        assertEquals("Queens Loyalty", pointsLabel(CharPointsDto(system = "QueensLoyalty")))
+        assertEquals("Clean Up Britannia", pointsLabel(CharPointsDto(system = "CleanUpBritannia")))
+        assertEquals("Void Pool", pointsLabel(CharPointsDto(system = "VoidPool")))
+    }
+
+    @Test fun pointsLabelPrefersTheShardsOwnNameWhenItHasOne() {
+        val entry = CharPointsDto(system = "QueensLoyalty", nameString = "Queen's Loyalty")
+        assertEquals("Queen's Loyalty", pointsLabel(entry))
+    }
+
+    @Test fun anUncappedSystemReportsNoCap() {
+        // maxPoints 0 means UNCAPPED and is the common case — three of five live
+        // boards on a real shard. Nothing may divide by it.
+        assertNull(CharPointsDto(points = 900, maxPoints = 0).cap)
+        assertNull(CharPointsDto(points = 900, maxPoints = null).cap)
+        assertEquals(30000L, CharPointsDto(points = 900, maxPoints = 30000).cap)
+    }
+
+    @Test fun displayPointsDropsZeroesAndSortsByStandingDescending() {
+        val char = CharProfileDto(
+            points = listOf(
+                CharPointsDto(system = "A", points = 10),
+                CharPointsDto(system = "Zero", points = 0),
+                CharPointsDto(system = "B", points = 500),
+                CharPointsDto(system = "Null", points = null),
+            ),
+        )
+        assertEquals(listOf("B", "A"), displayPoints(char).map { it.system })
+    }
+
+    @Test fun displayPointsIsEmptyForAProfileWithNoPointsBlock() {
+        // A pre-3.0 shard plugin sends none, and a new character has earned nothing —
+        // both render as nothing at all rather than an empty card.
+        assertEquals(emptyList<CharPointsDto>(), displayPoints(CharProfileDto()))
+    }
 }

app/src/test/java/com/runicgateway/app/ui/shard/ShardBoardViewModelTest.kt

@@ -12,6 +12,7 @@ import com.runicgateway.app.data.api.dto.PresenceDto
 import com.runicgateway.app.data.api.dto.ShardStatusDto
 import com.runicgateway.app.data.api.fake.FakePublicApi
 import com.runicgateway.app.data.api.fake.FakeShardStream
+import com.runicgateway.app.data.repository.ShardFeaturesRepository
 import com.runicgateway.app.data.repository.ShardRepository
 import com.runicgateway.app.ui.UiState
 import com.runicgateway.app.util.MainDispatcherRule
@@ -39,6 +40,10 @@ class ShardBoardViewModelTest {
 
     private fun repo(stream: FakeShardStream = FakeShardStream()) = ShardRepository(api, stream, json)
 
+    // The hub reads the feature set only to filter its board tiles; these tests
+    // exercise loading, so the answer stays at its "unknown" default (show all).
+    private fun features() = ShardFeaturesRepository(api)
+
     // ── Champs: snapshot + live upsert/remove ─────────────────────────────
     @Test fun champsSeedsSnapshotAndMergesLiveFrames() {
         api.champs = listOf(ChampDto(serial = "0x1", category = "champion", name = "Rikktor"))
@@ -108,7 +113,7 @@ class ShardBoardViewModelTest {
                 ShardStreamEvent.Frame("presence.online", buildJsonObject { put("count", 9) }),
             ),
         )
-        val vm = ShardViewModel(repo(stream))
+        val vm = ShardViewModel(repo(stream), features())
         val hub = (vm.state.value as UiState.Success).data
         assertTrue(hub.status.isOnline)
         // presence.online frame patched the count in place.
@@ -118,6 +123,6 @@ class ShardBoardViewModelTest {
 
     @Test fun shardHubStatusErrorIsUiError() {
         api.error = httpError(503)
-        assertTrue(ShardViewModel(repo()).state.value is UiState.Error)
+        assertTrue(ShardViewModel(repo(), features()).state.value is UiState.Error)
     }
 }

app/src/test/java/com/runicgateway/app/ui/shard/ShardContentHelpersTest.kt

@@ -0,0 +1,184 @@
+/*
+ * SPDX-License-Identifier: GPL-3.0-or-later
+ */
+package com.runicgateway.app.ui.shard
+
+import com.runicgateway.app.data.api.dto.AtlasCreatureDto
+import com.runicgateway.app.data.api.dto.AtlasPlaceDto
+import com.runicgateway.app.data.api.dto.AtlasSpawnerDto
+import com.runicgateway.app.data.api.dto.MarketListingDto
+import com.runicgateway.app.data.api.dto.MarketLocationDto
+import com.runicgateway.app.data.api.dto.PointsBoardDto
+import org.junit.Assert.assertEquals
+import org.junit.Assert.assertNull
+import org.junit.Test
+
+/**
+ * The pure display helpers behind the four Protocol 3.0 screens (PLAN.md §9 M11).
+ * Each one exists because the raw wire value would be wrong or misleading on screen —
+ * units in tenths, delays in seconds, an "uncapped" cap of zero, a gated field.
+ */
+class ShardContentHelpersTest {
+
+    // ── Rules (§5) ───────────────────────────────────────────────────────
+
+    @Test fun skillCapsConvertOutOfTenths() {
+        // 1000 is 100.0. Showing the raw number reads as a shard with ten times the
+        // usual limit, which is worse than showing nothing.
+        assertEquals("100", formatSkillCap(1000 / 10.0))
+        assertEquals("72.5", formatSkillCap(725 / 10.0))
+    }
+
+    @Test fun systemKeysHumanise() {
+        // Word boundaries become spaces and the inner capital is kept, matching the
+        // website's `humanise` — "City Loyalty" is the system's actual name.
+        assertEquals("City Loyalty", humaniseSystem("cityLoyalty"))
+        assertEquals("Vvv", humaniseSystem("vvv"))
+        assertEquals("Treasure Maps", humaniseSystem("treasureMaps"))
+    }
+
+    @Test fun theRestartScheduleOnlyShowsWhenTheShardRunsOne() {
+        assertEquals("04:30", formatRestart(enabled = true, hour = 4, minute = 30))
+        assertEquals("04:00", formatRestart(enabled = true, hour = 4, minute = null))
+        assertNull(formatRestart(enabled = false, hour = 4, minute = 30))
+        assertNull(formatRestart(enabled = true, hour = null, minute = 30))
+    }
+
+    // ── Leaderboards (§7) ────────────────────────────────────────────────
+
+    @Test fun boardLabelFallsBackToTheHumanisedKey() {
+        // The PRIMARY path: four of five boards on a real shard name themselves with a
+        // cliloc and send nameString null.
+        assertEquals("Queens Loyalty", boardLabel(PointsBoardDto(system = "QueensLoyalty")))
+        assertEquals(
+            "Queen's Loyalty",
+            boardLabel(PointsBoardDto(system = "QueensLoyalty", nameString = "Queen's Loyalty")),
+        )
+        assertEquals("Clean Up Britannia", boardLabel(PointsBoardDto(system = "CleanUpBritannia", nameString = "  ")))
+    }
+
+    @Test fun anUncappedBoardReportsNoCap() {
+        assertNull(PointsBoardDto(maxPoints = 0).cap)
+        assertEquals(30000L, PointsBoardDto(maxPoints = 30000).cap)
+    }
+
+    @Test fun boardsOrderByContestedThenName() {
+        val boards = listOf(
+            PointsBoardDto(system = "Quiet", players = 2),
+            PointsBoardDto(system = "Busy", players = 900),
+            PointsBoardDto(system = "AlsoQuiet", players = 2),
+        )
+        assertEquals(listOf("Busy", "Also Quiet", "Quiet"), orderBoards(boards).map { boardLabel(it) })
+    }
+
+    @Test fun boardsTheShardHidesFromItsOwnGumpAreDropped() {
+        // `showOnGump` is the shard's own "is this player-facing?" signal.
+        val boards = listOf(
+            PointsBoardDto(system = "Shown", players = 1, showOnGump = true),
+            PointsBoardDto(system = "Internal", players = 99, showOnGump = false),
+        )
+        assertEquals(listOf("Shown"), orderBoards(boards).map { it.system })
+    }
+
+    // ── Market (§8) ──────────────────────────────────────────────────────
+
+    @Test fun listingTitlePrefersAPlayerNameThenTheResolvedOne() {
+        assertEquals("Bob's axe", listingTitle(MarketListingDto(name = "Bob's axe", displayName = "hatchet")))
+        assertEquals("hatchet", listingTitle(MarketListingDto(displayName = "hatchet")))
+    }
+
+    @Test fun listingTitleIsNullWithoutAnyName() {
+        // A shard with no cliloc table configured publishes neither, and the screen
+        // falls back to the item id rather than inventing a label.
+        assertNull(listingTitle(MarketListingDto(itemId = 3922)))
+    }
+
+    @Test fun aStackShowsItsCount() {
+        // "12 × ingot" and "ingot" at the same price are very different offers.
+        assertEquals("12 × ingot", listingTitle(MarketListingDto(displayName = "ingot", amount = 12)))
+        assertEquals("ingot", listingTitle(MarketListingDto(displayName = "ingot", amount = 1)))
+        assertEquals("ingot", listingTitle(MarketListingDto(displayName = "ingot", amount = null)))
+    }
+
+    @Test fun locationPrefersTheHouseThenTheRegion() {
+        assertEquals(
+            "Darrow's Tower, Felucca",
+            locationLine(MarketLocationDto(map = "Felucca", region = "Britain", house = "Darrow's Tower")),
+        )
+        assertEquals("Britain, Felucca", locationLine(MarketLocationDto(map = "Felucca", region = "Britain")))
+        assertEquals("Felucca", locationLine(MarketLocationDto(map = "Felucca")))
+    }
+
+    @Test fun aGatedLocationIsNullRatherThanAHalfAnswer() {
+        // The block is nested precisely so one admin rule takes the facet, the
+        // coordinates, the region and the house together — there is no partial state
+        // to render.
+        assertNull(locationLine(null))
+        assertNull(locationLine(MarketLocationDto(x = 100, y = 200)))
+    }
+
+    // ── Atlas (§6) ───────────────────────────────────────────────────────
+
+    @Test fun respawnDelaysAreReadAsSeconds() {
+        // The API normalises XmlSpawner's mixed minutes/seconds, so these ARE seconds.
+        assertEquals("30s", formatRespawn(30, 30))
+        assertEquals("5m", formatRespawn(300, 300))
+        assertEquals("5m–10m", formatRespawn(300, 600))
+        assertEquals("1m 30s", formatRespawn(90, 90))
+    }
+
+    @Test fun aHalfSpecifiedRespawnStillReads() {
+        assertEquals("5m", formatRespawn(300, null))
+        assertEquals("5m", formatRespawn(null, 300))
+        assertNull(formatRespawn(null, null))
+    }
+
+    @Test fun spawnerPlacePrefersTheServersPlacementLabel() {
+        // The point-in-rect transform is the reason this feature exists: it turns
+        // "5411,1234" into "Despise, Felucca".
+        val spawner = AtlasSpawnerDto(
+            label = "Despise, Felucca",
+            region = "Despise",
+            facet = "Felucca",
+            x = 5411,
+            y = 1234,
+        )
+        assertEquals("Despise, Felucca", spawnerPlace(spawner))
+    }
+
+    @Test fun spawnerPlaceFallsBackThroughRegionLandmarkThenCoordinates() {
+        assertEquals(
+            "Despise, Felucca",
+            spawnerPlace(AtlasSpawnerDto(region = "Despise", facet = "Felucca")),
+        )
+        assertEquals(
+            "Yew Crossroads, Trammel",
+            spawnerPlace(AtlasSpawnerDto(landmark = "Yew Crossroads", facet = "Trammel")),
+        )
+        // ~17% of stock spawns resolve to no named place; coordinates are honest there.
+        assertEquals(
+            "Felucca 5411, 1234",
+            spawnerPlace(AtlasSpawnerDto(facet = "Felucca", x = 5411, y = 1234)),
+        )
+    }
+
+    @Test fun placeLabelUsesTheServersResolvedNameAndFallsBackToTheFacet() {
+        assertEquals(
+            "Isamu-Jima",
+            placeLabel(AtlasPlaceDto(facet = "Tokuno", label = "Isamu-Jima", spawners = 4)),
+        )
+        // The server already falls back to "Wilderness", so a label-less place is the
+        // degenerate case; the facet still says something, an empty row does not.
+        assertEquals("Tokuno", placeLabel(AtlasPlaceDto(facet = "Tokuno")))
+        assertEquals("Tokuno", placeLabel(AtlasPlaceDto(facet = "Tokuno", label = "  ")))
+    }
+
+    @Test fun facetSummaryLeadsWithWhereItMostlyIs() {
+        val creature = AtlasCreatureDto(
+            slug = "lizardman",
+            facets = mapOf("Trammel" to 4, "Felucca" to 30, "Ilshenar" to 12),
+        )
+        assertEquals("Felucca, Ilshenar, Trammel", facetSummary(creature))
+        assertNull(facetSummary(AtlasCreatureDto(slug = "unique")))
+    }
+}

app/src/test/java/com/runicgateway/app/ui/shard/ShardContentViewModelTest.kt

@@ -0,0 +1,223 @@
+/*
+ * SPDX-License-Identifier: GPL-3.0-or-later
+ */
+package com.runicgateway.app.ui.shard
+
+import com.runicgateway.app.core.net.ShardStreamEvent
+import com.runicgateway.app.data.api.dto.AtlasCreatureDto
+import com.runicgateway.app.data.api.dto.AtlasCreaturePageDto
+import com.runicgateway.app.data.api.dto.MarketListingDto
+import com.runicgateway.app.data.api.dto.MarketPageDto
+import com.runicgateway.app.data.api.dto.MarketVendorDto
+import com.runicgateway.app.data.api.dto.PointsBoardDto
+import com.runicgateway.app.data.api.dto.RulesetDto
+import com.runicgateway.app.data.api.fake.FakePublicApi
+import com.runicgateway.app.data.api.fake.FakeShardStream
+import com.runicgateway.app.data.repository.ShardRepository
+import com.runicgateway.app.ui.ErrorKind
+import com.runicgateway.app.ui.UiState
+import com.runicgateway.app.util.MainDispatcherRule
+import com.runicgateway.app.util.httpError
+import kotlinx.serialization.json.Json
+import kotlinx.serialization.json.buildJsonObject
+import kotlinx.serialization.json.put
+import org.junit.Assert.assertEquals
+import org.junit.Assert.assertNull
+import org.junit.Assert.assertTrue
+import org.junit.Rule
+import org.junit.Test
+
+/**
+ * The four Protocol 3.0 content screens (PLAN.md §9 M11): loading, the live merge, and
+ * the states that are easy to get wrong — "published nothing" vs "switched off", and a
+ * gated feature reading as unavailable rather than as a fault.
+ */
+class ShardContentViewModelTest {
+
+    @get:Rule val mainDispatcherRule = MainDispatcherRule()
+
+    private val api = FakePublicApi()
+    private val json = Json { ignoreUnknownKeys = true; explicitNulls = false; coerceInputValues = true }
+
+    private fun repo(stream: FakeShardStream = FakeShardStream()) = ShardRepository(api, stream, json)
+
+    // ── Rules ────────────────────────────────────────────────────────────
+
+    @Test fun rulesLoadTheRuleset() {
+        api.ruleset = RulesetDto(shard = "UOMysticmoon", expansion = "EJ")
+
+        val state = RulesViewModel(repo()).state.value
+
+        assertEquals("UOMysticmoon", (state as UiState.Success).data?.shard)
+    }
+
+    @Test fun anUnpublishedRulesetIsASuccessWithNoBody() {
+        // Distinct from the feature being switched off: the shard is reachable and
+        // simply hasn't emitted world.ruleset yet.
+        api.ruleset = null
+
+        val state = RulesViewModel(repo()).state.value
+
+        assertTrue(state is UiState.Success)
+        assertNull((state as UiState.Success).data)
+    }
+
+    @Test fun aGatedRulesetFeatureReadsAsUnavailableNotAsAFault() {
+        api.error = httpError(404)
+
+        val state = RulesViewModel(repo()).state.value
+
+        assertEquals(ErrorKind.FEATURE_UNAVAILABLE, (state as UiState.Error).kind)
+    }
+
+    @Test fun aLiveRulesetFrameReplacesTheLoadedCopy() {
+        // The frame IS the whole ruleset — the shard re-emits it on every reconnect, so
+        // a restart with edited config updates an open screen.
+        api.ruleset = RulesetDto(shard = "Old", expansion = "EJ")
+        val stream = FakeShardStream(
+            listOf(
+                ShardStreamEvent.Frame(
+                    "world.ruleset",
+                    buildJsonObject { put("shard", "New"); put("expansion", "EJ") },
+                ),
+            ),
+        )
+
+        val state = RulesViewModel(repo(stream)).state.value
+
+        assertEquals("New", (state as UiState.Success).data?.shard)
+    }
+
+    // ── Leaderboards ─────────────────────────────────────────────────────
+
+    @Test fun leaderboardsSeedAndMergeLiveBoards() {
+        api.pointsBoards = listOf(
+            PointsBoardDto(system = "QueensLoyalty", players = 800),
+            PointsBoardDto(system = "VoidPool", players = 10),
+        )
+        val stream = FakeShardStream(
+            listOf(
+                ShardStreamEvent.Frame(
+                    "points.board",
+                    buildJsonObject { put("system", "VoidPool"); put("players", 999) },
+                ),
+            ),
+        )
+
+        val boards = (LeaderboardsViewModel(repo(stream)).state.value as UiState.Success).data
+
+        // The merged board overtook the seeded one on the contested ordering.
+        assertEquals(listOf("VoidPool", "QueensLoyalty"), boards.map { it.system })
+    }
+
+    @Test fun aGatedLeaderboardsFeatureReadsAsUnavailable() {
+        api.error = httpError(403)
+
+        val state = LeaderboardsViewModel(repo()).state.value
+
+        assertEquals(ErrorKind.FEATURE_UNAVAILABLE, (state as UiState.Error).kind)
+    }
+
+    // ── Market ───────────────────────────────────────────────────────────
+
+    @Test fun marketLoadsListingsAndMeta() {
+        api.market = MarketPageDto(
+            listings = listOf(MarketListingDto(serial = "0x1", displayName = "hatchet", price = 250)),
+            total = 1,
+        )
+
+        val vm = MarketViewModel(repo())
+
+        assertEquals(1, (vm.state.value as UiState.Success).data.listings.size)
+    }
+
+    @Test fun aBlankMarketQueryIsNotSentAsAnEmptyFilter() {
+        MarketViewModel(repo())
+        assertNull(api.lastMarketQuery)
+    }
+
+    @Test fun theMarketQueryIsBoundedToWhatTheServerAccepts() {
+        // Trimmed here rather than bounced as a 400.
+        val vm = MarketViewModel(repo())
+        vm.onQueryChange("x".repeat(200))
+        assertEquals(MarketViewModel.MAX_QUERY, vm.query.value.length)
+    }
+
+    @Test fun aFailedMetaLookupDoesNotBlankTheResults() {
+        // Meta drives the staleness banner and the filter options; it is secondary.
+        api.market = MarketPageDto(listings = listOf(MarketListingDto(serial = "0x1")), total = 1)
+
+        val vm = MarketViewModel(repo())
+
+        assertTrue(vm.state.value is UiState.Success)
+    }
+
+    @Test fun aVendorLoadsBySerialAndKeepsItForRetry() {
+        api.marketVendor = MarketVendorDto(serial = "0x40001234", shopName = "Darrow's Wares", truncated = true)
+
+        val vm = MarketVendorViewModel(repo())
+        vm.load("0x40001234")
+
+        val vendor = (vm.state.value as UiState.Success).data
+        assertEquals("Darrow's Wares", vendor.shopName)
+        assertTrue(vendor.truncated)
+
+        // Retry re-uses the serial rather than needing it passed again.
+        api.error = httpError(500)
+        vm.retry()
+        assertTrue(vm.state.value is UiState.Error)
+    }
+
+    // ── Atlas ────────────────────────────────────────────────────────────
+
+    @Test fun atlasLoadsCreaturesAndDiscoversTheShardsFacets() {
+        // Nothing may NAME a facet — a shard can add, replace or rename them, so the
+        // filter options come from the shard's own data.
+        api.atlasCreatures = AtlasCreaturePageDto(
+            creatures = listOf(
+                AtlasCreatureDto(slug = "lizardman", facets = mapOf("Felucca" to 30, "Sosaria" to 2)),
+                AtlasCreatureDto(slug = "orc", facets = mapOf("Underdark" to 5)),
+            ),
+            total = 2,
+        )
+
+        val vm = AtlasViewModel(repo())
+
+        assertEquals(2, (vm.state.value as UiState.Success).data.creatures.size)
+        assertEquals(listOf("Felucca", "Sosaria", "Underdark"), vm.facets.value)
+    }
+
+    @Test fun aFilteredPageDoesNotNarrowTheFacetOptions() {
+        api.atlasCreatures = AtlasCreaturePageDto(
+            creatures = listOf(AtlasCreatureDto(slug = "a", facets = mapOf("Felucca" to 1, "Trammel" to 1))),
+        )
+        val vm = AtlasViewModel(repo())
+        assertEquals(listOf("Felucca", "Trammel"), vm.facets.value)
+
+        // Filtering to one facet must not leave the picker with only that option.
+        api.atlasCreatures = AtlasCreaturePageDto(
+            creatures = listOf(AtlasCreatureDto(slug = "a", facets = mapOf("Felucca" to 1))),
+        )
+        vm.onFacetChange("Felucca")
+
+        assertEquals(listOf("Felucca", "Trammel"), vm.facets.value)
+        assertEquals("Felucca", api.lastAtlasFacet)
+    }
+
+    @Test fun aGatedAtlasReadsAsUnavailable() {
+        api.error = httpError(404)
+
+        val state = AtlasViewModel(repo()).state.value
+
+        assertEquals(ErrorKind.FEATURE_UNAVAILABLE, (state as UiState.Error).kind)
+    }
+
+    @Test fun aCreatureLoadsBySlug() {
+        api.atlasCreature = AtlasCreatureDto(slug = "lizardman", name = "Lizardman", total = 214)
+
+        val vm = AtlasCreatureViewModel(repo())
+        vm.load("lizardman")
+
+        assertEquals(214, (vm.state.value as UiState.Success).data.total)
+    }
+}