Every push to dev paid for the full browser trio and the backend suite,
including commits that touch only documentation, workflows or process
scripts — the bundle and the harness were byte-identical, so the runs
proved nothing new. On 2026-08-19 alone that was roughly six pushes at
about seven minutes each.
The reuse key per heavy job is sourceFingerprint (src, demo fixtures,
golden scenarios, build manifests) plus that job's own harness: smoke
takes demo/smoke_*.mjs, golden takes demo/golden/** including baselines,
performance_smoke takes demo/performance/**, backend takes tests_backend
and the Python sources. A cache marker is written only by a successful run
of the same key, so a hit proves a job with identical inputs already
passed. scripts/** is deliberately outside every key: infrastructure work
edits it constantly and reuse would never fire.
This is not the path filter from the `changes` job, which stays disabled
on dev on purpose: there the scope is guessed from paths and "green" means
different things, here input equivalence is proven by a hash. And a
release candidate always bumps the version, which is part of the
fingerprint, so its keys are new by construction and the full gate set
still runs before every beta and release.
A waived job is announced with a notice and a run summary line rather than
skipped in silence, and the marker save tolerates a concurrent identical
run instead of reddening the job.
Issue: #208
User-Visible: no
Rule 8 demanded a working S-label from every class A/B commit's issue,
while owner decision #118 sends infrastructure work outside the S1..S8
flow entirely — such an issue has no status label by construction. The
two rules contradicted each other and the machine-checked one won, so
Validate on dev went red on every infrastructure commit (#175, #191,
#202, #206) and the catch-up signal stopped meaning anything. A gate that
is always red is not a gate.
The waiver keys on the diff, not on a permission label: a range with no
class A file at all. An `infra` label could be pinned on a product task
to walk a product commit past the status check; ceasing to touch class A
without ceasing to be infrastructure work is not possible. Issue
existence, open state, `blocked` and fail-closed on an unreachable gh all
still apply, and the waiver prints a visible warning rather than passing
in silence.
Mutation-checked both ways: unwiring the waiver reddens the CLI test,
and letting class A keep the waiver reddens both new tests.
Issue: #207
User-Visible: no
The old fixture ran the branch into the end of p1, so the T-patch lived
beyond the host (x>100) and the probe point [92,0] sat outside it under
any code behaviour: deleting the cutPartitionBody flatMap over patches
kept all subtests green (#188, found at the #132 code review).
The branch now meets the middle of the span, putting both node patches
inside the default opening's slot. The test proves its own fixture first:
an uncut run must show the patches bridging the slot, so if the geometry
ever stops producing them the control goes red instead of silently
devaluing the real assertion. Mutation-checked: reverting the flatMap
fails exactly this test, 888/889.
Issue: #188
User-Visible: no
After the mandatory rebase of a published issue branch the pre-push hook
still passes remote_old..local_new, and once the old tip is no longer an
ancestor that range drags in the whole advanced dev history: on #117 it
meant 84 foreign commits and 20 false rule-8 rejections over already
closed issues, leaving --no-verify as the only exit.
The clamp lives in the gate rather than the hook: .githooks/pre-push
carries an executable bit that MCP publication strips (the commit-msg
precedent), so editing it needs an owner-side commit. When the target is
an issue branch and the declared base is not an ancestor of the head, the
base becomes the merge-base with origin/dev. Fast-forward pushes keep
their exact range, every own commit is still judged, and a real violation
in a post-rebase commit still blocks — covered by a scenario test that
goes red without the wiring.
Issue: #190
User-Visible: no
Matysh