spec(ci): derived data -- when a seal or the t27b ledger is valid, and who writes it - #6603
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…d who writes it (Closes #6601) The decision rule for checked-in derived data (epic #6595, item B): a PR is red only for a regression or for a derived value it wrote that the tool would not write; lag is PENDING, a PR that moves inputs gets a REPORT, and one refresh bot rewrites lagging records on master in a derived-only PR. FROZEN_HASH stays owner-only; the bot blesses the ledger only when the cap holds or falls. 18 tests + 1 invariant, test-report FAIL 0 on the Railway lab (t27c at a4e68ba); a planted mutation fails a_t27b_improvement_is_not_red. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
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Status: not merged. Corpus ratchet is one of the required-green checks for this PR, and it is red. All four red checks come from master at 13e212a; none comes from this PR, which adds one spec and no
Green here: validate, check-linked-issue, parse-ratchet, own-language. |
This was referenced Oct 5, 2026
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PR DashboardGenerated at: 2026-10-05 22:29:44 UTC
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Closes #6601
Part of epic #6595, item B. This PR adds only the spec
specs/ci/derived_data.t27: the decision rule for checked-in derived data, meaning the seals (spec_hash,gen_hash_*,tests), the t27b ledger and FROZEN_HASH.Findings, the Bazel/Chromium comparison and the wiring list are on #6601. The wiring is an owner decision because own-language denies
.ymland.py.Verification (Railway t27c lab, t27c built from master a4e68ba)
Negative controls:
a_t27b_improvement_is_not_redfails (17/18).🤖 Generated with Claude Code