Three layers, verified by 10-run tallies (master: 7 pass/3 fail; branch: 10/10):
1. Deadline inversion: the hook tests' internal 8s poll deadlines sat behind
bun's 5000ms default because no third-arg timeout was passed — and bun
1.3.14 ignores bunfig.toml's `timeout` key, so bare `bun test` runs died
at 5s with the 8s budget unreachable. All three tests now pass 60_000
explicitly; deadlines raised to 30s for loaded-shard headroom. Same class
fixed in test/e2e/jsonb-roundtrip.test.ts (four tests had no explicit
timeout).
2. Root cause of the CI assertion failures: the test's git() helper spawned
git WITHOUT `env: process.env`. Bun snapshots process.env at startup (the
#2747 quirk), so the post-commit hook under test resolved GBRAIN_HOME to
the operator's real ~/.gbrain — writing its log there (polluting the real
brain-push.log every run) while the test polled the temp log. The
LOCAL-ONLY assertion only passed when beforeEach's scaffolding hook push
happened to still be in flight, lose the ref race, and retry after origin
pointed at the dead path — a load-dependent accident. env is now passed
everywhere, making the intended signal deterministic (~1s).
3. index.lock race (the third observed CI form): beforeEach now waits for the
scaffolding commit's detached brain_push to write its terminal log line
before handing the repo to the test, so its pull-rebase fallback can't
take .git/index.lock under the test body's own git calls.
Poll loops untouched — they were already correct; the 150 is the poll interval.
Co-authored-by: Garry Tan <garrytan@gmail.com>
Co-authored-by: Claude Opus 5 <noreply@anthropic.com>
