* ci: run PR unit shards on free hosted ARM as 12 shards
Enterprise's 1,000-job limit makes more, smaller shards free. A 12-shard
cold run on ubuntu-24.04-arm measured 361s median / 412s max per shard,
against ~390s / ~441s for five warm Blacksmith 8-vCPU shards.
The Blacksmith-store module cache producer becomes dispatch-only since
hosted shards cannot read it.
* TEMP: force 12 shards on this PR (repo var is still 5); drop before merge
* test: size the full-inventory routing check from FULL_SHARD_COUNT
* Revert TEMP 12-shard override; the repository variable is now 12
---------
Co-authored-by: OrcaWin <293788423+OrcaWin@users.noreply.github.com>
Removes ~74 assertions of the form `expect(SOME_CONSTANT).toBe(<literal>)` where
the literal is an internal tuning value — a timeout, retry count, debounce
interval, cache TTL, circuit-breaker window, Tailwind class string. Those cannot
fail for any reason a user would notice: they fail only when someone deliberately
changes the number, and then the test is simply updated. They are copies of the
declaration.
The same pattern is NOT junk when the exact value is observable outside this
process, so those were deliberately kept:
- terminal byte contracts: `\r`, `\x03` ETX, Kitty escapes, `\x1b[?1;2c`;
- wire and capability values: `agent.launch.v2`, protocol 3 / min-compatible 2,
daemon per-feature boundary versions (a daemon survives app updates, so those
pin what an old field daemon may be trusted with), relay header tokens;
- security invariants: the `127.0.0.1` bind default, an empty iframe `sandbox`;
- values external processes read: exit code 78 (EX_CONFIG) and exit code 3
(systemd `RestartPreventExitStatus`), `ORCA_AGENT_SESSION_SPAWN_TOKEN`,
`npx skills …` commands users paste, on-disk journal schema versions,
the `orca_<hash>` filename prefix the fish sweeper matches;
- third-party names: expo-router's `unstable_settings` / `ErrorBoundary`,
iOS Safari's 16px zoom threshold.
Where a case asserted a relation rather than a literal — `A < B`, a sum of parts,
a cap compared against a sibling budget — the relation stays and only the literal
went.
Test-only changes: no production file is touched and no test file is deleted.
A concurrency slot is charged per job, not per core, and the account's cap is
the scarce resource: standard runner minutes are free and unlimited on a public
repository. Two paths spent slots that bought nothing.
The unit matrix ran eight fixed shards averaging 6.5 minutes each, 3384
job-slots a day and 68% of all slot demand, while the arm pool queued 10.5
minutes at p95 — the queue was the oversharding. Five shards run the same work
in ~10.5 minutes each for three fewer slots per run.
Bun profile persistence escalated to all six platforms on `config/`,
`resources/` and `.github/` wholesale, which took 36.5% of the last 1100
commits through the full matrix where a platform-flavoured predicate takes 19%.
A pull request now qualifies one platform unless the change is platform-
flavoured, and the push to main re-qualifies all six, so an unescalated miss
surfaces minutes after merge rather than at the next cron. Missing changed-file
evidence and an unavailable dependency graph still fail closed to all six.
* ci: stage heavy checks and measure affected-test selection
* fix(ci): exercise the real Git boundary in unit selection planning
* Harden review cancellation and CI demand reporting
OrcaWinandOrcaWin
Neil