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feat(kit): the two shapes Teams added, taught and built
MODULE_API 1.6.0 expands the contract this book teaches against, so the book
owes two shapes and one correction. Chapter 2 gains both and the template grows
a working version of each, because a reader following a snippet has no way to
find out whether it runs.
ONE SENTENCE WAS WRONG. Chapter 2 said, of extension slots, "Only core may
declare a slot; a module may only fill one". 1.6.0 inverted exactly that: a
module declares a place on its OWN page and core fills it. That is not a stale
detail - a new game's module cannot implement Teams at all without the inverted
direction, so it is the shape the reader needs and did not have.
THE TWO SHAPES
- The inverted slot. A new "Slots go the other way too" section: why the
direction has to invert (core owns the Team, not the word for one), the
namespace rule, one slot per PLACE, the optional { core } naming which of
core's three contributions goes there, and why asking for one core does not
offer throws when almost everything else in that registry fails open.
- registerTeamProvider, in "Becoming the source of Teams". The first
registration where core calls YOU and waits, which is where every rule in it
comes from: the envelope, the ten-second budget, refusing as a normal answer,
and the one mistake worth naming - answering with an empty list because the
game is unreachable, which core reads as authoritative and acts on.
projectRoster gets its own treatment because it is the exception that fails
CLOSED. pageUrlTemplate is a footnote beside it, as intended.
WHAT THE TEMPLATE GREW
model/clans/ - the provider over two tables, with the guards that matter: an
unreachable game refuses rather than reporting no clans, an empty roster is
refused unless the game says the clan is empty (which is why the schema keeps a
member count the rows cannot supply), and the audience rule lives in one file
that both projectRoster and the module's own page consult, because a second copy
drifts in the direction that publishes what core is withholding.
Its own /clans routes, deliberately not /teams - core mounts that itself, and
the loader would refuse the collision. A clan list page and a clan page that
declares three slots for core.
12 provider tests and three registration tests, 47 server and 20 client in
total. The purge test finally proves something: two of the three tables are now
a parent and its child.
WHAT IT DOES NOT DO. Enumerate the contract. The kit teaches one path end to end
and links out; it has never mentioned three pre-Teams registrations and that is
the design, not a gap.
FOUND WHILE WRITING IT: core filled three literal uo.guild.* slot names, so the
inverted direction reached exactly one module and every other game's page came
up empty with nothing logged. Fixed in website#160 / Module-uo#15 / docs#165
before this chapter could teach it - which is what this phase is for.
The ci/core-ref.json pin moves in a later commit on this branch: checkCoreApi is
an equality against a core on main, and 1.6.0 does not reach main until the
cutover.
Co-Authored-By: Claude <noreply@anthropic.com>
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feat(template): a module that builds and loads — Phase 5 slice 1
The kit's `template/`: a complete, minimal Runic Gateway module a reader copies,
renames, and runs before reading a chapter. Slice 0 landed the workflow that runs
it; this is the tree that workflow was written against, so the `template` job
arms itself with no edit to the guard.
Installed into a real core it adds one public page at `/examplegame/status`, a nav
row pointing at it, one API route described in an OpenAPI fragment core merges,
one table created by an idempotent schema fragment and dropped by a purge file,
and both lifecycle hooks. That is deliberately less than a real module does; what
it is complete about is the shape — every seam used once, with the reasoning next
to it.
Four decisions, settled with the org lead:
1. **Public tier only, plus the lifecycle hooks.** §2.11.1 d1's "one public route",
plus enough to show the whole vertical seam once. Admin and player tiers become
worked examples quoted from module-uo in chapter 2 rather than two thirds of a
tree the reader deletes on day one.
2. **The release workflow ships as a file, in BOTH flavours** — `.gitea/` and
`.github/`. Neither runs where it sits (a workflow is only read from a
repository root) and each arms itself when the reader's copy is its own repo.
Packaging is the part of a module that cannot be guessed at, and the kit's
audience is outside this org, so assuming Gitea would have been assuming our
own deployment. Core installs from a URL and does not care where the release
lives — only that the host is on the operator's `MODULE_SOURCE_HOSTS`.
3. **A rename checklist that CI verifies**, not a rename script. `template/README.md`
carries the table; `scripts/checkRenameSites.js` holds it against the tree in
both directions — an unlisted file that still carries the placeholder fails, and
so does a listed file that no longer does. The second half is the one usually
left out and the more valuable: a row that has stopped matching reads as
instructions to edit something that is not there. Same rule core's identifier
check follows about its own exemptions. It has its own ten-test suite, run by
CI as `node --test`, because a check that has never been shown to fail is a
check nobody knows the state of.
4. **A neutral invented game.** One deviation from the literal answer, forced by
decision 3: the id is `examplegame`, not `example`. The checklist check is a
text search, and `example` occurs in ordinary English ("for example") all over
prose that is not a rename site — a placeholder that cannot occur by accident is
what makes the check answerable instead of a source of false alarms someone
learns to ignore.
**The pin moves to the 1.4.0 bump** (website `edge` 1b692bf), which is what
`template/module.json` declares as `coreApi`. Slice 0 pinned its parent, before
1.4.0 existed, so `checkCoreApi.js` arms for the first time here — it asserts
EQUALITY, and its failing on the next contract bump is the system working.
Also in CI: the client tests now run AFTER the build (two of them read the built
chunk and skip without one — run first, the job reports green while asking nothing
about the artifact that ships), and `check:swagger` verifies the committed
fragment is current.
## The finding: an UPDATE that changes nothing does not touch ON UPDATE CURRENT_TIMESTAMP
Every suite passed, both guards passed, the chunk built, the module loaded into a
real core and the page rendered correctly. Two hours later the same page said the
world was offline, and it was wrong.
`updated_at` was declared `ON UPDATE CURRENT_TIMESTAMP`, and MariaDB fires that
only when an UPDATE actually CHANGES a value. The boot refresh writes the same
numbers every thirty seconds — which is exactly what a quiet game looks like — so
the timestamp froze at the first write, the row crossed the freshness window, and
the model correctly reported a stale row as offline. Verified against the live
database: two hours of refreshes, `updated_at` still the boot timestamp.
No test in this repo could see it. The model takes its clock as an argument, and
nothing in a suite runs the same UPDATE twice against a real database. It is only
visible as a page that was right when you looked at it and wrong an hour later.
The writer now sets `updated_at = CURRENT_TIMESTAMP` explicitly and the column
drops the clause that was not doing what it looked like it was doing; both carry
the reasoning. Re-verified end to end: the timestamp advances every interval and
the API reports fresh.
Falling out of the fix, the schema fragment gained the rule the reader hits next:
**changing a table is an ALTER, never an edit to its CREATE** — `CREATE TABLE IF
NOT EXISTS` does nothing when the table exists, so an edited column definition
takes effect on a fresh install and on no existing one, which is the worst
possible split because your development database is usually the fresh one.
## Verified
- 29 server tests, 18 client tests, 10 kit-script tests; `check:imports`,
`check:externals`, `check:swagger` and `checkCoreApi` all green, run in CI's own
order from a clean `npm ci`.
- Browser smoke (MODULE_API.md §7.7) against a real core built from the pinned
ref: module `started`, published on `/api/v1/public/modules`, chunk served
`no-cache` with the right MIME from the entry's directory while `module.json`
and the server source 404, script tag injected after core's bundle, the page
rendering inside core's own chrome, the nav row interleaved into the public
header between Wiki and About, SPA navigation into it from another page, the
module's path and schema and tag merged into `/api/docs.json`, and
`[examplegame] registered against core API 1.4.0` in the console with no CSP
report and no React error.
Refs: MODULE_SYSTEM.md §2.11.1 (slice 1), MODULE_API.md §2.x, §3.x, §5.1, §7.7.
Co-Authored-By: Claude <noreply@anthropic.com>
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