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docs: correct CHANGELOG receipt numbers to measured values

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Gate census keys: 78 -> 77 (bun-imported E2E_TIERS count). Sweep receipt:
586 sites/176 files -> 499 sites/146 files, measured by running this
branch's spawnsync-timeout-tripwire against origin/main (exit 1, 499
violations across 146 unique files; green on this branch).

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
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Garry Tan
2026-08-31 06:28:07 +00:00
co-authored by Claude Fable 5
parent 904ddf91f3
commit a69a4d3920
1 changed files with 3 additions and 3 deletions
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CHANGELOG.md
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@@ -7,7 +7,7 @@
The test infrastructure got its overhaul, wave 1. The legacy 17-row eval matrix that ran serialized AHEAD of the sliced lane on every PR is deleted: one paid lane, its gate census derived from the runner itself, so a new gate test is in the census the moment its file lands. No hand-enumerated rows to drift, and the drift already tried, a new matrix row landed on main mid-branch and the merge resolved to the derived census that covers it by construction.
The flake war moved from anecdotes to instruments. Every retried pass is now recorded where it cannot hide (bun's own output shows a retry as a clean pass, we probed it), the free lane retries a failing file once, loudly, and appends every flaky pass to a per-project ledger uploaded from CI on green runs. `bun run eval:flake-rank` ranks the series. And the wedge class that hit main, a hung child under a blocking spawnSync that no in-process timeout can interrupt, is extinct: 586 sync-spawn sites across 176 test files now carry timeouts, with a ratcheted tripwire that failed its first real offender the day a timeout-less spawn arrived from a merge.
The flake war moved from anecdotes to instruments. Every retried pass is now recorded where it cannot hide (bun's own output shows a retry as a clean pass, we probed it), the free lane retries a failing file once, loudly, and appends every flaky pass to a per-project ledger uploaded from CI on green runs. `bun run eval:flake-rank` ranks the series. And the wedge class that hit main, a hung child under a blocking spawnSync that no in-process timeout can interrupt, is extinct: 499 timeout-less sync-spawn sites across 146 files (the branch tripwire's own count against main) swept to zero, with a ratcheted tripwire that failed its first real offender the day a timeout-less spawn arrived from a merge.
### The numbers that matter
@@ -17,8 +17,8 @@ Source: CI runs 33263204465 / 33262077256 (measured 2026-08-29), the repo census
|---|---|---|---|
| Paid lanes per PR | 2 (serialized) | 1 | eval wall 35.5 → ~13 min (target) |
| Measured duplicate spend per PR | ~$20.94 | $0 | matrix deleted |
| Gate census keys | 86 (6 phantoms) | 78, all provably alive | reverse invariant enforces |
| Sync spawns that can wedge a shard | 586 unbounded | 0 (8 reasoned exemptions) | tripwire-ratcheted |
| Gate census keys | 86 (6 phantoms) | 77, all provably alive | reverse invariant enforces |
| Sync spawns that can wedge a shard | 499 unbounded | 0 (8 reasoned exemptions) | tripwire-ratcheted |
| Local gate worst case | ~6.5 h (4×4 jobs) | ~3.3 h (8×2) | isolation landed first |
| Retried-pass visibility | invisible | recorded + ranked | `eval:flake-rank` |