Run the full T2 §5 prose-vs-Workflow /trekreview bake-off (operator GO,
choice "a"): 3 runs/arm on a rich-finding JWT-auth fixture, resolving the
smoke's 0-finding limitation.
Deliverables:
- tests/fixtures/bakeoff-rich/ — JWT-auth brief + diff with 5 seeded blatant,
brief-traceable issues (varied severity/rule_key, one dual-flaggable).
- scripts/bakeoff-armA-merge.mjs — Arm A (prose) validate (NW1) + triplet-dedup,
matching Arm B's dedup exactly.
- scripts/bakeoff-fidelity.mjs — cross-arm + within-arm + granularity-ladder
fidelity analysis over the structured arm outputs.
- docs/T2-bakeoff-results.md §Full run — the T2 §5 verdict.
Result (3 runs/arm, both arms ran the coordinator):
- Verdict fidelity EQUIVALENT — all 6 runs BLOCK, cross-arm verdict-match 1.0.
- Finding-set: substrate is fidelity-neutral. Cross-arm jaccard 0.41 (triplet)
→ 0.71 (file,rule_key) → 1.0 (file); cross-arm ≈ within-arm at every
granularity. Issue coverage 5/5 in 6/6 runs. Low triplet jaccard is
line-citation noise shared by both arms, not a substrate effect.
- Token +4.4% (Arm B vs A; <=+15%). Classifier interference 0 at 9-agent
concurrency. JSON-robustness: Arm B schema-forced; Arm A 6/6 valid via NW1.
- VERDICT POSITIVE → S11 proceeds with opt-in --workflow flag.
Caveat (per plan posture): strict triplet-jaccard>=0.7 flag is 0/9, a
metric-calibration artifact (both arms sub-0.7 against themselves), not a
regression. Residual: F4 auto/bypass explicit-mode check (mode not settable
in-session).
Suite green (662/660 pass, 2 skip); plugin validate clean (modulo the
pre-existing root-CLAUDE.md warning). No production code changed.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01LqBYc8Ltrk7LipyJmGxXiB
Build the prose-vs-Workflow bake-off machinery for /trekreview Phase 5-6 and
run a 1-run/arm smoke to de-risk before the full measurement (operator posture:
build + smoke, then pause for go/no-go on the full >=3-runs/arm run).
New:
- lib/review/fidelity-diff.mjs (+ tests) — the PRIMARY metric: parse two
review.md (or two structured arm outputs) and compare verdict + jaccard over
(file,line,rule_key)-IDs + per-finding severity/rule_key. Reuses jaccard +
frontmatter + NW1 findings-schema + finding-id. fidelityDiffStructured avoids
rendering review.md per run.
- scripts/trekreview-armB.workflow.mjs — Arm B: Phase 5-6 as a Workflow
(parallel([conformance, correctness]) schema-forced -> JS dedup-by-triplet ->
agent(review-coordinator) verdict schema). Path-based input via args (reviewers
carry Read). Inlines dedup + the 12-key rule_key enum (scripts have no imports).
- tests/fixtures/bakeoff/ — committable fixture: real diff of b149538 (NW1) +
brief reconstructed from plan S9. Both arms review the same pinned input.
- docs/T2-bakeoff-results.md — smoke results + verdict + go/no-go recommendation.
Smoke result: SMOKE PASS. Arm B runs the full pipeline (3 agents) with ZERO
classifier interference; fidelity EQUIVALENT to Arm A at the verdict level
(both ALLOW; jaccard 1.0). Caveat: the clean TDD'd fixture yielded ~0 findings,
so finding-SET fidelity was not stressed (only verdict fidelity proven). A
reviewer-level divergence appeared (Arm B raised 1 raw finding, coordinator
filtered it; Arm A raised 0) — to be quantified in the full run on a
richer-finding-surface fixture. NOT the T2 §5 POSITIVE/NEGATIVE verdict.
Suite 647 -> 662 (660 pass / 2 skip / 0 fail; +15 fidelity-diff). claude plugin
validate clean (known root-CLAUDE.md warning only). Plan: docs/W1-narrow-wins-plan.md S10.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01LqBYc8Ltrk7LipyJmGxXiB
