Two-sided ratchets with zero slack made parallel tasks conflict on shared
numbers, recompute them after every rebase and hit a ceiling because a
neighbour merged first (#689 after #691).
- Core lines (test/core-file-budget.test.mjs): a branch may grow up to
CORE_BAND = 50 lines over the beta ceiling; shrinking no longer fails it.
- Bundle graphs (bundle-budget.mjs): initial View and lazy graphs fail only
above ceiling + 2 000 B; below the ceiling is not a branch finding. The
absolute INITIAL_VIEW_GZIP_BUDGET stays the wall.
- Monolith numbers (monolith-metrics.mjs, unused-locals-gate.mjs):
METRIC_BANDS — 5 for delegates, port members and privates, 25 for host.
refs, 2 000 B for dist/; a lower number is reported, not failed.
- Browser mutation guards: 200 is a guideline — mutation-gate --check warns
above it instead of failing; every guard still needs its reason line.
- scripts/ratchets.mjs: `report [--warn]` and `tighten` — on the beta
candidate the release manager sets every ceiling to the fact in one
commit; release:prerelease prints loose ceilings as a warning.
Canon: PROCESS.md §3 (browser guards, monolith numbers) and §8 «Храповики»;
docs/TESTING.md.
Issue: #699
User-Visible: no
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_018qZfe7YS4rqEMKoVeS3GKd
