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+| 2026-05-01T09:09:00Z | opus-4-7 / autonomous-loop tick | 98fc7424 | PR #1055 thread-fix tick — continuation of the previous tick's BLOCKED-with-green-CI investigate-first discipline, applied to the next pending PR in the queue. PR #1059 + PR #1060 from previous tick both **landed cleanly to main** during this tick window (commits 08e5770 + 7e4e3d8) — confirms the thread-fix → resolve → CI-pass → auto-merge pipeline works end-to-end. Then drained PR #1055 (B-0131 correction + B-0139 inventory): 7 unresolved threads, all from Copilot. Three classes: (1) **Real fix** (P1, 3 threads) — `proofs/lean/ChainRule.lean` was a dangling pointer because that file was migrated to `tools/lean4/Lean4/DbspChainRule.lean` and removed in commit `279c6f2` (round 26). Reworded both occurrences in B-0131 + B-0139 to make the historical-vs-current distinction explicit ("predecessor file at `proofs/lean/ChainRule.lean` was migrated to … in commit `279c6f2`"). Path preserved as lineage breadcrumb only, not live pointer. (2) **Real fix** (P2, 1 thread) — spelling `re-occurring` → `recurring` in B-0139. (3) **Phantom-blockers** (P2, 3 threads) — Copilot's recurring "757 lines" claim for `DbspChainRule.lean` empirically refuted across origin/main + PR branch (post-fix `64c2e81`) + local working tree; 756 confirmed via `wc -l` on all refs. All 7 threads resolved via `resolveReviewThread` GraphQL mutation; phantom replies posted with empirical refutation. PR #1055 auto-merge NOT armed (substrate work; Aaron-arm authority — not me). Cron 98fc7424 healthy. | [PR #1055: 1 commit (64c2e81) addressing 4 real findings + 3 phantom replies + 7 thread-resolutions; auto-merge intentionally unarmed] | The class-level lesson is **review-thread classification taxonomy compounds across PRs**. The 757-vs-756 phantom appeared in PR #1059 (resolved), recurred in PR #1055 (resolved). Same Copilot bug, two PRs. The third + fourth + fifth instances will likely recur in PR #1054 / #1051 / etc. when those get drained. Future-Otto: when a phantom-blocker class repeats across PRs, the discipline is to recognize it ON SIGHT rather than re-investigating each time. The `wc -l` empirical refutation can be cached as a one-shot reply template. The `proofs/lean/ChainRule.lean` finding is structurally different — it's a Real-Fix (Stale-content-deferral subclass per the PR-thread-resolution-class taxonomy memory) — the path was real but is now historical, and the fix is wording rather than restoration. The auto-merge-arm authority distinction held: tick-history hygiene PRs (#1060) I armed myself; substrate work PRs (#1055) wait for Aaron's arm. |