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claim(cf48): Opus 4.8 cold review matrix complete — NO COVERAGE LOST 
Independent cross-validation of cfold 44e0242. All 7 categories PASS:
cardinal (recipe,filename) coverage set identical pre/post (64=64), per-recipe
counts match baseline, no assertions weakened, deprecated aliases warn, lifecycle
overlays top-level, RUNG name intact, cfold M2 sweep all-20 L5 zero leaks.
cf55(sonnet-4.6) vs cf48(opus-4.8) FULL agreement; cf48 also caught a cf55
narrative slip (keycloak sys.path unchanged, not depth-adjusted).

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
2026-06-13 05:24:46 +00:00

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JOURNAL — phase cf48 (Opus 4.8 post-cfold coverage-loss review)

2026-06-13T05:30Z — Independent cold review complete, M1 claimed

Model check: session reports claude-opus-4-8, override files /srv/cc-ci/.cc-ci-logs/.loop-model-cf48 = claude-opus-4-8 and .loop-backend = claude. Matches the phase Model Requirement — proceeded.

Approach. Reviewed independently first (formed my own verdict from the diff, the code, and live probes), THEN read cf55 to reconcile. The plan named GPT-5.5 for cf55 but cf55 actually ran on claude-sonnet-4-6 (launcher mismatch, orchestrator relaunch — documented in its own state files), so the "two different models" cross-validation is Sonnet 4.6 vs Opus 4.8. Recorded honestly in STATUS rather than pretending it was GPT vs Claude.

Why I'm confident it's a pure relocation. The cfold safety argument (discovery globs both old subdirs with no branching, both map to the L4 functional rung, identical fixtures/failure semantics) was already established in the cfold plan §1. My job was to confirm the execution matched. Three things made it provable rather than "looks right":

  1. The cardinal coverage diff (cmd 6) compares the actual git trees at 44e0242^ and HEAD by (recipe, filename), stripping the folder component — a byte-identical sorted diff means no file was added, dropped, or renamed-away, only re-parented. This is stronger than a count match (counts can coincide while a file is swapped).
  2. git show --find-renames collapses the 100%-identical moves so only the 5 content-touched test files surface — and each of those is a docstring/comment/sys.path line, never an assertion. Small surface to eyeball exhaustively.
  3. The whole-repo grep for functional//playwright/ literals outside the alias handling, plus the == "functional" value-branch grep, proves no consumer (manifest, screenshot, dashboard, drone, bridge) silently keys off the old folder name. Only discovery.py's intentional alias lines remain.

Discrepancy I caught vs cf55. cf55's narrative claims keycloak's custom tests had a sys.path depth adjustment ../.. → ../../... The diff shows those lines unchanged (only the comment moved). Harmless — functional/ and custom/ are equal depth so no adjustment was needed — but it's a factual slip in cf55's write-up. Surfaced in the agreement note per the phase's "note where the two disagree" instruction. cf48 found it; cf55 missed it. No coverage consequence either way.

Evidence audit stance. Did NOT rerun the full fleet sweep (guardrail: don't re-sweep unless cfold evidence is incomplete — it isn't). Relied on cfold's cold-verified M2 PASS (REVIEW-cfold.md 04:11:00Z): all 20 recipes L5, custom-junit counts = baseline per recipe, ghost upgrade junit=2, live_pr_apps=0. That is sufficient and independently re-runnable evidence; re-sweeping would be churn.

Commands run (all green): unit suite 18 passed; per-recipe counts all match; cardinal diff IDENTICAL SET; alias probe found: ['test_new.py','test_old.py','test_ui.py'] + 2 warnings; stale- consumer grep clean; git status clean; RUNG name "functional" intact.

Next: parked at M1 CLAIMED gate awaiting Adversary M1 + M2 PASS in REVIEW-cf48.md. No other unblocked cf48 work (review-only phase). Will self-poll with a fallback while the watchdog edge-pings on the Adversary's review(...) commit.