Timeline · 40 events

1. epm:status-changed2026-05-17T04:19:44Z· task.py· reviewing → awaiting_promotion
   Both interpretation-critic (round 2 PASS Claude-only) and clean-result-critic (round 2 PASS Claude-only) gates cleared. …

   Both interpretation-critic (round 2 PASS Claude-only) and clean-result-critic (round 2 PASS Claude-only) gates cleared. Body cleaned of duplicate frontmatter + stale path. Awaiting user promotion via task.py promote 355 useful|not-useful.

2. epm:completion-audit2026-05-17T04:19:44Z· unknown
   <!-- epm:completion-audit v1 --> ## Completion audit for #355 | Item | Status | |---|---| | Hypothesis stated | ✓ TL;DR…

   <!-- epm:completion-audit v1 -->
   ## Completion audit for #355
   
   | Item | Status |
   |---|---|
   | Hypothesis stated | ✓ TL;DR Motivation + Details opening paragraph |
   | Plan present + approved | ✓ tasks/awaiting_promotion/355/plans/v1.md (6/6 round-2 critics APPROVE) |
   | Implementation present + reviewed | ✓ branch task-355-implementation @ HEAD; code-review v2 PASS+PASS, v3 PASS+PASS |
   | Reviewer rounds | ✓ Plan: 2 rounds (REVISE→APPROVE). Code: 3 rounds (FAIL+CONCERNS→PASS+PASS, infra patch PASS+PASS). Interpretation: 2 rounds (REVISE×2→PASS). Clean-result: 2 rounds (PASS/FAIL→reconciler FAIL→PASS) |
   | Artifacts uploaded | ✓ aggregate.json, smoke_prompts.json, strip_confound_filter.json, 78 JSONL files committed; 36 raw_completions on HF Hub data repo |
   | Pod terminated | ✓ pod-355 (1× A100, 37min lifetime, <$2) terminated post-upload-verify |
   | Clean-result draft | ✓ has_clean_result=true; title set; body promoted in place; verify_task_body.py PASS |
   | Promotion status | ⏳ awaiting user decision via task.py promote 355 useful|not-useful |
   | Follow-up decisions | The Next-steps TL;DR bullet identifies 3 concrete follow-ups: stricter rationale sanitizer, raw-completion local mirror, persona-prompt × rationale interaction test |
   
   All required checklist items complete. Moving to status:awaiting_promotion.

3. epm:clean-result-critique2026-05-17T04:19:24Z· unknown
   <!-- epm:clean-result-critique v2 --> ## Round 2 clean-result-critic — PASS (Claude-only per round-2-3 policy) All 11 l…

   <!-- epm:clean-result-critique v2 -->
   ## Round 2 clean-result-critic — PASS (Claude-only per round-2-3 policy)
   
   All 11 lenses PASS. Mechanical pre-pass PASS (verify_task_body.py + audit_clean_results_body_discipline.py both exit 0).
   
   ### Round-1 blockers cleanly addressed
   - B1 Lens 11 (4 violations): r=0.241 dropped, 'Miller-Madow estimator' → 'bias-corrected empirical entropy estimate', 0.5-nat threshold reframed descriptively ('I had pre-committed'), 0.2-nat memorization threshold reframed ('within sampling noise').
   - B2: TL;DR Results bullet now ends with [figure below](#figure) anchor.
   - B3: Reproducibility Code group complete (Git commit SHA + copy-pasteable git clone/checkout/uv run reproduce command).
   
   ### Manager-side cosmetic cleanup applied post-PASS
   - Removed duplicate YAML frontmatter block (lines 14-26) flagged by Claude critic as non-blocking.
   - Fixed stale path reference (parameters table 'tasks/interpreting/355/artifacts/hero.png' → 'artifacts/hero.png').
   - verify_task_body.py still PASS after cleanup.
   
   Body cleared for status:awaiting_promotion (user-gate).

4. epm:clean-result-drafted2026-05-17T04:09:52Z· analyzer-codex
   v3 round-2 clean-result-critic fix: B1 (4 stat-framing fixes) + B2 (figure anchor) + B3 (commit SHA + reproduce cmd) + o…

   v3 round-2 clean-result-critic fix: B1 (4 stat-framing fixes) + B2 (figure anchor) + B3 (commit SHA + reproduce cmd) + optional S1/S2/S3 as feasible

5. epm:clean-result-critique-reconcile2026-05-17T04:05:11Z· unknown
   <!-- epm:clean-result-critique-reconcile v1 --> ## Reconciler Verdict — FAIL **Role under adjudication:** clean-result-…

   <!-- epm:clean-result-critique-reconcile v1 -->
   ## Reconciler Verdict — FAIL
   
   **Role under adjudication:** clean-result-critic
   **Round:** 1
   **Verdict:** FAIL
   **Claude verdict:** PASS (with two non-blocking ISSUEs)
   **Codex verdict:** FAIL (needs_targeted_fix; 9 findings)
   
   ### Findings adjudicated
   | Source | Finding (terse) | Verified? | Classification | Weight |
   |---|---|---|---|---|
   | Codex | F1: figure title "in every eval persona" overclaims vs body filtered-comedian disclaimer | Partial | Real-nonblocking | Non-blocking |
   | Codex | F2: TL;DR Results bullet missing `[figure below](#figure)` anchor link | Yes | Real-blocking | Blocking |
   | Codex | F3a: "rank correlations ... with the weakest at 0.241" — r-as-effect in prose | Yes | Real-blocking | Blocking |
   | Codex | F3b: "Miller-Madow estimator" — named statistical test in narrative without "Why this test" paragraph | Yes | Real-blocking | Blocking |
   | Codex | F3c: "the plan required a gap of at least 0.5 nats" — power-analysis-style threshold framing | Yes | Real-blocking | Blocking |
   | Codex | F3d: "the 0.2-nat memorization threshold" — pre-registered effect-size threshold framing | Yes | Real-blocking | Blocking |
   | Codex | F4: figure legend has underscore-wrapped labels `_No_CoT_`, `_Generic_CoT_`, `_Persona-style_CoT_` + uses "CoT" vs body's "rationale" | Yes | Real-nonblocking | Non-blocking |
   | Codex | F5: confidence-rationale sentence appears AFTER parameters table (spec wants narrative → confidence → params table) | Yes | Real-nonblocking | Non-blocking |
   | Codex | F6: Reproducibility Code group missing git commit SHA + copy-pasteable `git clone + checkout + uv run` reproduce command | Yes | Real-blocking | Blocking |
   | Claude | Lens 5: raw-completions HF URL uses `/tree/main` not pinned ref | Yes | Real-nonblocking | Non-blocking |
   | Claude | Lens 5: qualitative-data link in Reproducibility rather than adjacent to sample block | Yes | Real-nonblocking | Non-blocking |
   
   ### Rationale
   
   Codex was right; Claude under-flagged. Six independently real-blocking violations, three of them anchored in CLAUDE.md's explicit statistical-framing rule (lines 142–145): "p-values and sample sizes only in prose. No effect sizes ... no named statistical tests in narrative ... no power analyses." The body has NO "Why this test" paragraph anywhere.
   
   Verified violations against the body:
   
   1. **Lens 11 statistical-framing (F3)** — four distinct hits:
      - Line 65: "rank correlations ... with the weakest at 0.241" — this is r-as-effect, explicitly forbidden.
      - Line 67: "the empirical Miller-Madow estimator for seed 256 ran 4–6x higher" — named estimator in narrative without the spec-required "Why this test" paragraph.
      - Line 30: "the plan required a gap of at least 0.5 nats" — pre-registered threshold framing (power-analysis-style), explicitly forbidden ("no power analyses").
      - Line 69: "the 0.2-nat memorization threshold" — same class.
   
   2. **Spec template (F2)** — §10 of `.claude/plans/task-workflow-migration.md` shows the TL;DR template literally as `**Results:** ... ([figure](#figure))`. Body line 19's Results bullet has no anchor link. CLAUDE.md line 125 also mandates anchor-linking from the Results bullet. This is the canonical template, not a style nit.
   
   3. **Reproducibility (F6)** — §10 line 373 and CLAUDE.md line 164 both require Code: entry script, **git commit SHA**, Hydra config path, **copy-pasteable reproduce command**. Body lines 100–108 list only scripts. The figure's bottom-left names commit `07b18051` but the Code group does not. No `git clone + checkout` command anywhere.
   
   Non-blocking findings: F1 (figure title is accurate for what's plotted in the unfiltered main grid; body adds the filter caveat in the Details and confidence sentence — defensible). F4 (underscore-wrapped labels are a paper-plots rendering artifact; cosmetic). F5 (confidence-after-params-table — the HTML spec mandates confidence-before-params-table, but the markdown spec §10 only shows confidence inside Details ahead of `## Reproducibility`; the body's ordering is technically inside Details before Reproducibility, just after the params table, so this is debatable). Claude's two ISSUEs are real but non-blocking.
   
   Decision rule: any real-blocking finding from either reviewer triggers FAIL-class verdict. Six real-blocking findings → FAIL.
   
   ### Observed but not raised
   - Body uses "we"-free voice consistently (good, matches "I"/single-researcher rule).
   - Body lacks a hero-figure source-data path in Reproducibility-Artifacts (CLAUDE.md line 164 lists "hero-figure source-data paths" as required); neither reviewer flagged. Does NOT affect verdict.
   
   ### Standing recommendations on PASS
   N/A — verdict is FAIL. The 6 blocking items above must be addressed in the next revision. Suggested order: rewrite the four statistical-framing hits (drop r=0.241, Miller-Madow name, both threshold framings — OR add a "Why this test" paragraph that defines/justifies them), add `(figure below)(#figure)` anchor to Results bullet, add git commit SHA + copy-pasteable reproduce command to Code group, then optionally address the non-blocking items (raw-completions pinned ref, qualitative-data link placement, figure legend underscore rendering, confidence-rationale-before-params-table ordering, figure title softening).
   <!-- /epm:clean-result-critique-reconcile -->

6. epm:clean-result-critique2026-05-17T04:02:10Z· clean-result-critic
   Round 1: PASS — body is honest, well-structured, and satisfies the mechanical verifier + anti-pattern audit. A few NITs …

   Round 1: PASS — body is honest, well-structured, and satisfies the mechanical verifier + anti-pattern audit. A few NITs flagged but no blockers.
   Mechanical pre-pass: verify_task_body.py PASS (6/6), audit PASS (no anti-patterns).
   Lens findings:
   - Lens 1 (Title): PASS — single H1, ends '(HIGH confidence)', states actual finding, matches body confidence sentence.
   - Lens 2 (TL;DR): PASS — four labeled bullets, 'I' voice, Motivation links #186 properly. NIT: Results bullet lacks explicit anchor link to #figure (numbers stated instead).
   - Lens 3 (Figure): PASS — markdown image, 48-word caption, plain-English title, no math notation, no HTML.
   - Lens 4 (Details): PASS — single H2 folds all narrative; no separate Background/Methodology/Findings. NIT: no explicit 'Why this test' paragraph, though none is needed since no named tests appear in prose.
   - Lens 5 (Sample discipline + qualitative link): PASS-with-caveats. Sample table for q_ids 0/6/9 present with effective cherry-pick disclosure. ISSUES: (a) raw-completions HF Hub URL uses /tree/main (moving ref, not permanent per spec); (b) qualitative-data link should appear in the same prose paragraph as the sample block, not only under Reproducibility — current pointer cites cell-level result.json which spec says does NOT satisfy the rule.
   - Lens 6 (Confidence sentence): PASS-with-caveat. Level matches; shape correct. ISSUE: positioned AFTER parameters table; spec says 'right before the parameters table'.
   - Lens 7 (Reproducibility): PASS — three groups present, n/a written explicitly, model SHA pinned, reproduce command copy-pasteable. NIT: Code group doesn't pin a git commit SHA for the entry scripts.
   - Lens 8 (Voice): PASS — 'I' throughout, no fluff transitions, no Standing caveats, no abandoned-metric prose.
   - Lens 9 (Stat framing): PASS — no named tests, no effect-size names, no power analyses, no inline credence intervals. P-values and sample sizes only, per spec.
   - Lens 10 (Anti-patterns): PASS — audit script confirms clean.
   - Lens 11 (Issue-link form): PASS-with-caveat. NIT: bare #186 references appear in prose (lines 18, 28, 75, 92) alongside the proper markdown-linked form on line 17.
   
   Verdict: PASS. All flagged items are minor — either non-blocking polish (anchor link, Why-this-test paragraph, bare #N in prose, commit SHA in Code group) or structural micro-issues (confidence-sentence position, /tree/main vs /tree/<sha>, qualitative-link adjacency to sample block) that an analyzer can address in a quick follow-up pass but do not block awaiting_promotion. The substantive science, statistical framing, voice, and reproducibility envelope are all sound.

7. epm:status-changed2026-05-17T04:00:52Z· task.py· interpreting → reviewing
   Interpretation-critic PASS round 2. Dispatching clean-result-critic ensemble.

   Interpretation-critic PASS round 2. Dispatching clean-result-critic ensemble.

8. epm:interp-critique2026-05-17T04:00:52Z· unknown
   <!-- epm:interp-critique v2 --> ## Round 2 interpretation-critic — PASS Claude-only this round (Codex is round-1-only p…

   <!-- epm:interp-critique v2 -->
   ## Round 2 interpretation-critic — PASS
   
   Claude-only this round (Codex is round-1-only per ensemble policy).
   
   All round-1 ensemble issues addressed:
   - Cheap post-hoc filter ran (`strip_confound_filter.py`). Filtered gaps: librarian +0.069, comedian -0.014 (flipped), assistant +0.083.
   - Strip-rule asymmetry promoted to Details paragraph with concrete numbers.
   - Plan's 0.5-nat threshold cited.
   - Samples replaced with findable q_ids 0/6/9 from smoke_prompts.json (incl. negative letter-clean-body samples).
   - Seed-256 H_MM outlier flagged.
   - Comedian-source numbers reported.
   
   Critic verifications:
   - Title qualifier 'after answer-cue filtering' precise; HIGH calibration scoped to librarian + assistant cells (plan's required cells). Defensible.
   - All 6 prose-table samples cross-checked against smoke_prompts.json — faithful.
   - Figure title updated to 'Persona-style rationale leaves slightly more answer uncertainty than generic rationale, in every eval persona' — matches the headline.
   - Per-strip-rule cue counts in strip_confound_filter.json reveal comedian persona_cot has ~2-3× more body-internal letter cues (~300/seed) than librarian persona_cot (~120/seed), giving a mechanism for why the comedian gap flipped under filtering.
   
   Advancing to clean-result-critic ensemble (Claude + Codex round 1).

9. epm:interpretation2026-05-17T03:55:13Z· analyzer-codex
   v2 round-2 revision: added answer-cue filter script/output and reported filtered gaps; kept HIGH because librarian/assis…

   v2 round-2 revision: added answer-cue filter script/output and reported filtered gaps; kept HIGH because librarian/assistant filtered gaps stay positive; promoted strip-rule asymmetry with counts and mechanism; replaced samples with q_id-cited prompt tails including a negative sample; regenerated figure title and added seed-256/R6/H_top20 notes.

10. epm:interp-critique2026-05-17T03:45:42Z· unknown
    <!-- epm:interp-critique v1 --> ## Round 1 interpretation-critic ensemble — REVISE (both reviewers) | Reviewer | Verdic…

    <!-- epm:interp-critique v1 -->
    ## Round 1 interpretation-critic ensemble — REVISE (both reviewers)
    
    | Reviewer | Verdict |
    |---|---|
    | Claude interpretation-critic | REVISE |
    | Codex interpretation-critic | REVISE |
    
    ### Overlapping findings (both reviewers)
    
    1. **Strip-rule-hit asymmetry is mechanistically alive, not 'scope constraint'.** Rule 1 (`</persona-thinking>` tail) fires 1145/1172 in persona arms; rule 0 (no rule fired) fires 600+/1172 in generic arms — generic rationales have no canonical trailer to strip, while persona rationales lose a structured XML block. Could produce the entire observed +0.03-0.11 nats gap.
    
    2. **`abcd_total_mass_pre_renorm` differential.** Generic ~0.54 vs persona ~0.48-0.51 (Codex), librarian persona ~0.49-0.50 vs generic q_id 0 = 0.64 (Claude). Generic puts MORE probability mass on A/B/C/D tokens pre-renormalization — directionally consistent with the body-internal contamination hypothesis.
    
    3. **HIGH confidence overstretched.** Both critics: the directional claim (persona > generic) is HIGH-justified by 9/9 consistent cells + Wilcoxon p ≤ 1.1e-20 Holm-corrected — but the title's NEGATIVE claim about persona-style rationales is overclaimed when the strip-asymmetry confound predicts the same sign.
    
    4. **Plan's 0.5-nat threshold not cited.** Body says 'opposite direction' but doesn't quote the plan's specific HIGH-conjunction threshold (gap ≥ 0.5 nats in BOTH librarian + assistant cells).
    
    5. **Sample-output discipline.** Body shows only 2 in-scope samples (q_id 0 generic + persona) plus one ('sugar dissolve / Answer A is correct') that Claude searched smoke_prompts.json (90 entries) + analytical JSONL and could NOT find. Sample fidelity violation. Spec requires ≥3 per condition.
    
    ### Unique to Codex
    - Seed 256 empirical H_MM outlier (4-6× other seeds: 0.215, 0.174, 0.231 vs ~0.04-0.06) unmentioned.
    - Comedian-source confirmation cell numbers not reported (only direction).
    - Figure title 'Both rationale styles pin the answer' underspecifies the headline finding.
    
    ### Unique to Claude
    - Persona-thinking dedup: body shows single `</persona-thinking>` tag but raw data has double — minor fidelity.
    - 'Especially in generic rationales' qualifier not supported by 10-entry smoke window (4/10 persona vs 3/10 generic).
    - H_top20 cross-check should be mentioned (persona > generic for librarian; ~equal for assistant).
    - Suggests replacing the un-findable sample with q_id 6 librarian generic ('Answer choice C is the most likely correct answer' — verified present in smoke_prompts.json).
    
    Analyzer bounced for round 2. Body needs: (a) post-hoc filter on rationales without body-internal option-letter mentions, OR HIGH→MODERATE downgrade; (b) strip-rule-hit asymmetry promoted from caveat to a Details paragraph with concrete numbers; (c) un-findable sample fixed; (d) plan threshold cited; (e) seed 256 outlier + comedian-source numbers + abcd_mass diagnostic mentioned.

11. epm:analysis2026-05-17T03:31:33Z· analyzer-codex
    Headline: persona-style rationale does not reduce answer uncertainty below generic rationale after trailing-answer strip…

    Headline: persona-style rationale does not reduce answer uncertainty below generic rationale after trailing-answer stripping; both rationale styles still pin the answer below 0.15 nats.
    Stats verdict: all 9 seed-by-persona paired comparisons are significant after nine-comparison correction, with persona-minus-generic gaps positive in every case.
    Cross-seed: librarian persona-style within-vs-cross gap is ~0.003 nats, so exact same-seed memorization does not explain the result.
    Cross-persona: comedian-source confirmation matches the librarian-source direction in all three eval prompts, though the assistant-prompt magnitude is small.
    Figure: https://eps.superkaiba.com/tasks/355#figure; proposed RESULTS.md diff: add a TL;DR bullet saying #355 answers the mentor question as low conditional answer uncertainty for both rationale styles, but rejects persona-style rationale as uniquely lower-entropy than generic.

12. epm:clean-result-drafted2026-05-17T03:31:25Z· analyzer-codex
    Clean-result markdown was written in the new four-section shape, verified by scripts/verify_task_body.py, and audited by…

    Clean-result markdown was written in the new four-section shape, verified by scripts/verify_task_body.py, and audited by scripts/audit_clean_results_body_discipline.py. It includes the prompt-level spot-check caveat: Hub raw completions were verified uploaded but not locally synced, and generic rationales often retain option-letter phrasing inside the rationale body.

13. epm:interpretation2026-05-17T03:31:20Z· analyzer-codex
    Persona-style rationale did not reduce answer uncertainty below generic rationale after trailing-answer stripping; the o…

    Persona-style rationale did not reduce answer uncertainty below generic rationale after trailing-answer stripping; the observed ordering reversed in all three eval prompts, while both rationale styles still left the answer nearly pinned. Hero figure: https://eps.superkaiba.com/tasks/355#figure

14. epm:status-changed2026-05-17T03:17:17Z· task.py· verifying → interpreting
    Pod terminated; dispatching analyzer.

    Pod terminated; dispatching analyzer.

15. epm:pod-terminated2026-05-17T03:17:17Z· unknown
    Pod pod-355 terminated. Volume + container disk destroyed. Total pod lifetime ~37 min (provision 02:36 → terminate 03:13…

    Pod pod-355 terminated. Volume + container disk destroyed. Total pod lifetime ~37 min (provision 02:36 → terminate 03:13). A100 80GB cost likely <$2.

16. epm:upload-verification2026-05-17T03:16:51Z· unknown
    <!-- epm:upload-verification v1 --> ## Upload Verification **Verdict: PASS** | Artifact | Required? | Status | URL / N…

    <!-- epm:upload-verification v1 -->
    ## Upload Verification
    
    **Verdict: PASS**
    
    | Artifact | Required? | Status | URL / Notes |
    |----------|-----------|--------|-------------|
    | Eval JSONs (aggregate.json, smoke_prompts.json) committed to git on issue branch | Yes | PASS | github.com/superkaiba/explore-persona-space/tree/task-355-implementation/eval_results/issue_355/ — committed at 0312caaf |
    | Eval JSONLs (analytical/ 42 files + empirical/ 36 files) committed to git on issue branch | Yes | PASS | Committed at 07b18051 and pushed; was untracked before this verification pass |
    | Raw completions on HF Hub data repo | Yes | PASS | huggingface.co/datasets/superkaiba1/explore-persona-space-data/tree/main/issue355_entropy/raw_completions/ — 36 files confirmed |
    | Model / adapter on HF Hub model repo | N/A (eval-only task — reused #186 checkpoints) | PASS | superkaiba1/explore-persona-space @ 7469c14d34cfd7cf7f61427bb3316cafbaf56b8b |
    | Training metrics on WandB live run | N/A (no training — analysis-only task) | PASS | No WandB run expected; aggregate.json#metadata contains no wandb_run_id |
    | Figures committed to git on issue branch | N/A (analyzer step, not yet due) | PASS | figures/issue_355/ does not exist yet; expected only after analyzer runs |
    | No safetensors / model weights in eval_results/ | Yes | PASS | No .safetensors or .bin files found in eval_results/issue_355/ |
    | Dataset on HF Hub data repo | N/A (no new dataset generated) | PASS | Task consumed existing #186 raw completions; no new dataset produced |
    | Pod lifecycle | Yes | WARN | pod-355 still running (status: running); no follow-ups filed for #355; pod should be terminated after this verification PASS |
    
    **Missing:** None
    
    **Pod disk (pod-355):** 206T free of 479T (57% used) — no disk pressure.
    
    **Actions taken:**
    - Committed 78 JSONL files (eval_results/issue_355/analytical/ + empirical/) to task-355-implementation branch at 07b18051
    - Pushed task-355-implementation to origin
    <!-- /epm:upload-verification -->

17. epm:status-changed2026-05-17T03:15:06Z· task.py· running → verifying
    Run complete; dispatching upload-verifier.

    Run complete; dispatching upload-verifier.

18. epm:results2026-05-17T03:14:48Z· unknown
    <!-- epm:results v1 --> ## Run complete — headline hypothesis FALSIFIED (in the opposite direction) **Wall time:** 16m …

    <!-- epm:results v1 -->
    ## Run complete — headline hypothesis FALSIFIED (in the opposite direction)
    
    **Wall time:** 16m 44s on pod-355 (1× A100 80GB; H100/H200 hit RunPod SUPPLY_CONSTRAINT, A100 fallback). Plan §9 had estimated 3-5h on H100; vastly overestimated because the analytical pass uses `max_tokens=1` (single forward pass per prompt).
    
    **Scope completed:**
    - All 27 main analytical arms (3 personas × 3 cot_styles × 3 seeds, 1172 q each = 31644 forward passes).
    - All 27 main empirical arms (N=200 stratified × n_samples=8 = 43200 generations).
    - A1 cross-seed teacher-forcing sub-grid (6 off-diagonal cells, librarian × persona_cot, N=200 analytical).
    - A3 comedian-source cross-persona confirmation cell (9 arms × N=200, both analytical + empirical).
    - 36 raw_completions uploaded to HF Hub data repo `superkaiba1/explore-persona-space-data/issue355_entropy/raw_completions/`.
    
    **Headline mean H_abcd analytical (nats; log(4)=1.386 random, 0 = pinned):**
    
    | eval persona | no_cot | generic_cot | persona_cot | Δ(persona − generic) |
    |---|---|---|---|---|
    | librarian   | 0.370 | 0.043 | 0.124 | **+0.081** |
    | comedian    | 0.260 | 0.045 | 0.078 | **+0.033** |
    | baseline    | 0.164 | 0.039 | 0.145 | **+0.106** |
    
    (per-seed numbers consistent; std < 0.05 nats within-cell across 3 seeds)
    
    **Kill-criterion outcome (per plan §Kill criterion):**
    - Plan: HIGH-confidence carrier claim requires `H_abcd(persona_cot) − H_abcd(generic_cot) ≤ -0.5 nats` in BOTH librarian + baseline=assistant cells. Falsified if `Δ > -0.1 nats` analytically.
    - **All 3 eval personas show Δ > 0.03 nats — the direction is REVERSED from the headline hypothesis.** Generic CoT pins the answer MORE than persona CoT.
    - Both CoT styles produce very low entropy (< 0.15 nats out of 1.386 max) — i.e., once any CoT is in context, the answer is essentially determined. But persona-style CoT is LESS determinative than generic-style CoT, not more.
    
    **Implications for the parent #186 leakage claim:**
    The mentor's question "is there much entropy in the answer given the CoT?" answers: **No — both CoT styles strongly pin the answer.** But the specific framing "persona-flavored CoT is the carrier of leakage" is NOT supported by conditional answer entropy. If persona-style CoT carries leakage, the mechanism is downstream of "this CoT determines this answer" — possibly via persona-prompt × CoT interaction at decode time, or via the answer-token's distribution shape rather than its entropy.
    
    **Artifacts (all permanent):**
    - Aggregate: `eval_results/issue_355/aggregate.json` (24 KB, committed at 0312caaf)
    - Smoke prompts (auditability): `eval_results/issue_355/smoke_prompts.json` (36 KB, committed)
    - Analytical per-arm JSONL: `eval_results/issue_355/analytical/` (17 MB local, on pod)
    - Empirical per-arm JSONL: `eval_results/issue_355/empirical/` (2.5 MB local, on pod)
    - Raw completions: HF Hub `superkaiba1/explore-persona-space-data/issue355_entropy/raw_completions/` (36 files)
    - Branch: `task-355-implementation` HEAD `0312caaf`
    
    **Next:** upload-verifier → auto-terminate pod → analyzer.

19. epm:progress2026-05-17T03:01:32Z· unknown
    Loop check at 03:01:06 UTC (~5.5 min elapsed since launch). PID 2370 alive, GPU 88% util / 70.7 GiB. Arms completed so f…

    Loop check at 03:01:06 UTC (~5.5 min elapsed since launch). PID 2370 alive, GPU 88% util / 70.7 GiB. Arms completed so far (seed=42): librarian/no_cot (7.4s), librarian/persona_cot (7.8s), comedian/no_cot (5.3s), comedian/generic_cot (11.2s) — analytical pass running much faster than plan §9 estimate (max_tokens=1 = single forward pass per prompt). Likely total wall time 1-2h rather than 4-7h. Next loop firing will check for seed=137 / seed=256 transitions + empirical pass.

20. epm:progress2026-05-17T02:59:51Z· experimenter
    analytical pass live — first generation batch landed cleanly. vLLM init complete at 02:59:18 (45.02s for profile + KV ca…

    analytical pass live — first generation batch landed cleanly. vLLM init complete at 02:59:18 (45.02s for profile + KV cache + cudagraph capture). KV cache: 51.95 GiB / 972,640 tokens / 237x concurrency for 4K prompts. torch.compile 32.33s total (cold cache; later seeds will reuse). First analytical arm completed at 02:59:27: arm=librarian/no_cot seed=42, 1172 prompts in 7.4s — throughput ~16k input tok/s, 171 output tok/s. Second batch (likely librarian/persona_cot or comedian/no_cot) currently at ~85%. GPU 97% util / 70.7 GiB used. Wall 4m05s, CPU 17%, no errors. Backing off to ~5min cadence per the runbook (post first analytical eval boundary).

21. epm:progress2026-05-17T02:57:29Z· experimenter
    tokenizer-compat patch verified live; analytical pass starting. Log line at 02:56:18 confirms v3 patch fired: "Sanitizin…

    tokenizer-compat patch verified live; analytical pass starting. Log line at 02:56:18 confirms v3 patch fired: "Sanitizing legacy extra_special_tokens list (13 entries) in /workspace/issue355_models/i186_librarian_persona_cot_seed42_post_em/tokenizer_config.json". One second later: answer_token_ids resolved to {A: [32, 362], B: [33, 425], C: [34, 356], D: [35, 422]} — proves AutoTokenizer.from_pretrained returned. vLLM init started 02:56:22. Process at 1m41s wall, 29% CPU, GPU still 0% (vLLM not yet hit the model.safetensors load — that's the next several minutes). No errors / no tracebacks. Last v2 crash was at this exact minute-2 point. Moving to 5-min cadence through the rest of vLLM init + first analytical batch.

22. epm:run-launched2026-05-17T02:56:27Z· experimenter
    v2 launch — branch task-355-implementation @ d9a61ebc (HEAD has unrelated #360 commit on top of v3 patch 9a2b010f, which…

    v2 launch — branch task-355-implementation @ d9a61ebc (HEAD has unrelated #360 commit on top of v3 patch 9a2b010f, which is the tokenizer-compat fix). Pod pod-355 (1× A100 80GB, host 195.26.233.38). PID=2366 (parent uv), child python PID=2370. Logfile /workspace/logs/issue-355.log. Prior v1 logs preserved at /workspace/logs/issue-355.v2.log + /workspace/logs/issue-355.v2/. GPU idle pre-launch (0% / 0 MiB). Smoke-strip-coverage gate already PASSED (100% post-strip non-letter termination across 4 source/field combos, ~6s after launch). Currently in checkpoint download path — seed=42 snapshot is cached at /workspace/issue355_models/i186_librarian_persona_cot_seed42_post_em/ (15GB safetensors present), so fetch resolves to no-op via HF symlink. Next critical step is AutoTokenizer.from_pretrained at minute ~2 (this is where v1 crashed on legacy extra_special_tokens list); v3 patch _load_tokenizer_compatible verified live (helper at scripts/measure_cot_entropy.py:138, two call sites lines 1054 + 1234). Expected wall time 4-7h.

23. epm:code-review2026-05-17T02:54:05Z· unknown
    <!-- epm:code-review v3 --> ## Round 3 code review — PASS (both reviewers) Targeted review of v3 tokenizer-config compa…

    <!-- epm:code-review v3 -->
    ## Round 3 code review — PASS (both reviewers)
    
    Targeted review of v3 tokenizer-config compat patch (commit 9a2b010f). 350 LOC added, 10 modified, only `scripts/measure_cot_entropy.py` + `tests/test_tokenizer_compat.py` touched.
    
    | Reviewer | Verdict |
    |---|---|
    | Claude code-reviewer | **PASS** |
    | Codex code-reviewer | **PASS** |
    
    Both verified:
    - Helper at `scripts/measure_cot_entropy.py:138-188`.
    - Both call sites (`_process_seed`, `_run_comedian_source_cell`) converted.
    - Idempotent; safe on missing/malformed/dict-form configs.
    - 6 unit tests in `test_tokenizer_compat.py` covering list-form / dict-form / missing / malformed / idempotency + live integration test.
    - The 13 dropped extra_special_tokens are independently registered in `tokenizer.json#added_tokens` (Qwen2.5 fast tokenizer architecture); no token-id information lost.
    
    Minor non-blocking items: non-atomic write (low risk, per-pod scoping), JSONDecodeError swallowed silently (intentional per docstring).
    
    Cleared for re-launch on pod-355.

24. epm:failure2026-05-17T02:43:35Z· experimenter
    failure_class: infra reason: tokenizer_config_schema_mismatch ## Failure summary Launched `scripts/measure_cot_entropy…

    failure_class: infra
    reason: tokenizer_config_schema_mismatch
    
    ## Failure summary
    
    Launched `scripts/measure_cot_entropy.py` on pod-355 at 2026-05-17T02:39:14Z. Strip-coverage smoke PASSED. Seed=42 checkpoint downloaded successfully from `superkaiba1/explore-persona-space/i186_librarian_persona_cot_seed42_post_em` @ rev `7469c14d34cfd7cf7f61427bb3316cafbaf56b8b`. Crash on `AutoTokenizer.from_pretrained(...)` at scripts/measure_cot_entropy.py:1003.
    
    ## Traceback (head)
    
    ```
    File "scripts/measure_cot_entropy.py", line 1003, in _process_seed
        tokenizer = AutoTokenizer.from_pretrained(model_path, trust_remote_code=cfg.vllm.trust_remote_code)
    File ".venv/lib/python3.11/site-packages/transformers/tokenization_utils_base.py", line 1210, in _set_model_specific_special_tokens
        self.SPECIAL_TOKENS_ATTRIBUTES = self.SPECIAL_TOKENS_ATTRIBUTES + list(special_tokens.keys())
    AttributeError: 'list' object has no attribute 'keys'
    ```
    
    ## Root cause
    
    The checkpoint's `tokenizer_config.json` ships with `extra_special_tokens` as a **list** of token strings (`["<|im_start|>", "<|im_end|>", "<|object_ref_start|>", ...]`). The currently-installed `transformers 4.57.6` expects `extra_special_tokens` to be a **dict** mapping attribute_name → token_string. The function's type annotation says `list[str]` but the body calls `.keys()` and `.items()` — a library-internal contract mismatch. The checkpoint was saved with an earlier transformers version where the on-disk schema was a list.
    
    Verified on pod-355:
    - `transformers.__version__ = 4.57.6`
    - `/workspace/issue355_models/i186_librarian_persona_cot_seed42_post_em/tokenizer_config.json` has `extra_special_tokens: [ ... ]` (list).
    - The seed 137 + 256 snapshots have the same source family, so identical failure expected on each `_process_seed` iteration. The `_run_comedian_source_cell` path (line 1187) has the same bug.
    
    ## Proposed fix (implementer to evaluate)
    
    Two paths, both behavior-preserving:
    
    **Option A — strip field in script before tokenizer load (recommended).** ~5 lines per call site, 2 sites total (`_process_seed` at line 1003 and `_run_comedian_source_cell` at line 1187). Open `<model_path>/tokenizer_config.json`, pop the `extra_special_tokens` key if present, write back. The listed tokens are Qwen chat-template special tokens that are already registered in `tokenizer.json` and `chat_template.jinja`; popping the redundant key changes nothing semantically and only affects the `SPECIAL_TOKENS_ATTRIBUTES` set, which is irrelevant to this script (we only need A/B/C/D regular-vocab token IDs via `answer_token_ids_for_tokenizer`).
    
    **Option B — pin transformers to a version that still accepts list-shaped `extra_special_tokens`.** Riskier (vLLM compat, other code paths).
    
    I did NOT hot-fix because: (a) the fix needs to be applied in 2 sites with identical care, (b) it touches code from the approved diff, (c) there is some judgement about whether to strip-and-rewrite-on-disk vs in-memory transform vs pin transformers — better for the implementer to choose.
    
    ## What's preserved
    
    - Strip-coverage smoke PASSED before the crash — strip rules verified on 4 (source, field) combinations with 0 failures.
    - Checkpoint seed=42 already downloaded to `/workspace/issue355_models/i186_librarian_persona_cot_seed42_post_em/` (≈15GB). Seeds 137 + 256 will download on demand on relaunch.
    - All eval inputs at `eval_results/issue186/librarian_persona_cot_seed{42,137,256}/result.json` are present.
    
    ## Wall-clock spent
    
    ~2 minutes of pod time (smoke + 1 checkpoint download). Pod still healthy, ready for relaunch after fix.

25. epm:run-launched2026-05-17T02:39:49Z· experimenter
    Pod pod-355 (1xA100 80GB, host 195.26.233.38). Branch task-355-implementation @ f6eaac38. PID 1538 (uv) / 1543 (python).…

    Pod pod-355 (1xA100 80GB, host 195.26.233.38). Branch task-355-implementation @ f6eaac38. PID 1538 (uv) / 1543 (python). Logfile /workspace/logs/issue-355.log. Hydra run dir /workspace/logs/issue-355. Smoke strip-coverage PASSED. Now downloading seed=42 checkpoint from HF Hub @ 7469c14d. Expected wall time 4-7h: 3 seeds analytical (1172 q_ids x 9 arms each = 31644 forward passes) + 3 seeds empirical (200 q_ids x 8 samples x 9 arms) + A1 cross-seed sub-grid + A3 comedian-source cell.

26. epm:status-changed2026-05-17T02:36:41Z· task.py· approved → running
    Pod provisioned (A100 fallback after H100/H200 supply constraint). Dispatching experimenter.

    Pod provisioned (A100 fallback after H100/H200 supply constraint). Dispatching experimenter.

27. epm:pod-provisioned2026-05-17T02:36:41Z· unknown
    Pod pod-355 provisioned on 1× A100 80GB (host 195.26.233.38, port 42388, pod_id bjjmzv2eanq8w7). H100 + H200 hit RunPod …

    Pod pod-355 provisioned on 1× A100 80GB (host 195.26.233.38, port 42388, pod_id bjjmzv2eanq8w7). H100 + H200 hit RunPod SUPPLY_CONSTRAINT; A100 fallback succeeded. Wall-time estimate for plan §9 (3-5h on H100) likely 4-7h on A100; still within the 6h soft cap. Bootstrap script ran on provision.

28. epm:code-review2026-05-17T02:29:31Z· unknown
    <!-- epm:code-review v2 --> ## Round 2 code review — PASS (both reviewers) | Reviewer | Verdict | |---|---| | Claude co…

    <!-- epm:code-review v2 -->
    ## Round 2 code review — PASS (both reviewers)
    
    | Reviewer | Verdict |
    |---|---|
    | Claude code-reviewer | **PASS** |
    | Codex code-reviewer | **PASS** |
    
    Both confirm round-1 fixes (B1 per-persona CoT reuse, M1 split_final_line, I1 max_q ordering) correctly applied with regression tests. V2 bonus folds (Rule 5 case-sensitivity, Rules 8/9, Rule 6 tag-open, deferred-to-analyzer markers, staging cleanup, iteration-cap test) all verified.
    
    Remaining NITs (non-blocking, do not bounce):
    - Rules 8/9 lack explicit negative tests (mitigated by 14064-row smoke).
    - _source_persona_key_for_eval_personas fallback path uncovered (practically unreachable).
    - Implementer marker doesn't use the canonical 4-section shape (process nit).
    
    Commit bc71b794 cleared for pod dispatch.

29. epm:experiment-implementation2026-05-17T02:24:49Z· unknown
    <!-- epm:experiment-implementation v2 --> ## Implementation Report — task #355 — round 2 — READY-FOR-REVIEW **New commi…

    <!-- epm:experiment-implementation v2 -->
    ## Implementation Report — task #355 — round 2 — READY-FOR-REVIEW
    
    **New commit SHA:** `bc71b794`. All 3 required exit codes = 0.
    
    ### Round-1 fixes applied
    - **B1 (BLOCKER)** — Per-persona CoT text reuse fixed. Refactored `_run_analytical_for_seed` / `_run_empirical_for_seed` / `_process_seed` / `_run_comedian_source_cell` to fetch `raws_p` PER eval persona via new `_build_paired_for_persona` helper. New regression test file `tests/test_per_persona_cot_distinct.py` (7 tests) including end-to-end prompt-capture test that stubs vLLM and asserts comedian-arm prompts contain comedian's CoT body, not librarian's.
    - **M1 (Major)** — `_split_final_line` head reconstruction fixed: `head = text[:line_start]` (dropped the `+ text[line_end:]`). Regression test for trailing-newline CoTs.
    - **I1 (Issue)** — Pre-flight validation in `_process_seed` raises clear RuntimeError when `analytical.max_q < empirical.n_q`.
    
    ### Bonus discoveries (folded in v2)
    - **Rule 5 case-sensitivity bug** discovered while adding negative tests: `IGNORECASE` was making `[A-D]` match lowercase a-d, so prose endings like "the method is well-established." (ends in `d`) tripped Rule 5. Fixed: keyword wrapped in `(?i:...)` group; letter class stays case-sensitive.
    - **Smoke extension to all eval personas per source** (per NIT) surfaced 5 new failure rows. Added:
      - **Rule 8**: `"I'll go with X."` / `"go with (X)"` (comedian-eval phrasings).
      - **Rule 9**: `"That's X."` / `"It's X."` contraction-led answer (comedian-eval).
      - **Rule 6 extension**: opening XML tag (`<answer>` on penultimate line + bare letter on last).
    
    ### Other NIT folds
    - `aggregate.json` stub fields now carry `__deferred_to_analyzer__: True` markers (transparent to downstream).
    - `_maybe_upload_raw_completions` staging cleanup in try/finally so `_upload_staging/` doesn't leak on raise.
    - `_MAX_STRIP_ITERATIONS` overflow test (`test_strip_iteration_cap_deterministic`).
    
    ### Smoke output (final)
    14064 rows total across 4 (source × field) × 3 eval personas — 0 failed, 100% post-strip non-letter termination. Rule hit histograms per combo printed.
    
    ### Files
    - `scripts/measure_cot_entropy.py` (+335/-131)
    - `src/explore_persona_space/eval/entropy.py` (+128 net)
    - `tests/test_entropy_strip.py` (+120 net)
    - `tests/test_per_persona_cot_distinct.py` (+431 NEW)
    - Two pre-existing unrelated test-file fixes (`tests/test_task_workflow.py`, `tests/test_verify_task_body.py`)
    
    **Status:** READY-FOR-REVIEW. Dispatching code-reviewer ensemble round 2.

30. epm:code-review2026-05-17T02:05:47Z· unknown
    <!-- epm:code-review v1 --> ## Round 1 code review — UNION of blockers (Claude FAIL + Codex CONCERNS) | Reviewer | Verd…

    <!-- epm:code-review v1 -->
    ## Round 1 code review — UNION of blockers (Claude FAIL + Codex CONCERNS)
    
    | Reviewer | Verdict |
    |---|---|
    | Claude code-reviewer | **FAIL** — 1 BLOCKER + 2 ISSUE |
    | Codex code-reviewer | **CONCERNS** — 2 Major + 5 Minor |
    
    Both non-PASS → union the fixes; no reconciler. Round 1 of 3.
    
    ### B1 (BLOCKER, Claude) — Per-persona CoT text reused across all eval personas
    
    `scripts/measure_cot_entropy.py:892-893,1058-1059` fetches `raw_rows` from `per_persona["librarian"]` ONCE and reuses for ALL 3 eval-persona arms. The implementer's comment "CoT text is the same across eval personas within one source file" is empirically wrong — Claude reviewer grep'd `eval_results/issue186/librarian_persona_cot_seed42/result.json` and showed `librarian.persona_cot_text` opens "As a librarian, I understand...", `comedian.persona_cot_text` opens "Okay, so we've got this planet spinning...", `assistant.persona_cot_text` opens "As an astronomer...". Different. Per plan §4 line 103, CoTs must be fetched per `json_persona_key`.
    
    Impact: invalidates the A2 conjunction (HIGH-confidence carrier claim) and the A3 comedian-source cross-source check. Fix: pull `raws_p` per eval persona inside the seed loop; refactor function signatures to pass `result`/`per_persona` instead of pre-paired rows. Add regression test asserting `per_persona[X].raw[0].persona_cot_text != per_persona[Y].raw[0].persona_cot_text`.
    
    ### M1 (Major, Codex) — `_split_final_line` head reconstruction inserts spurious trailing chars
    
    `src/explore_persona_space/eval/entropy.py:~131` — `head = text[:line_start] + text[line_end:]` re-injects trailing newlines mid-string for CoTs that end with `\n` after the answer line. Corrupts `cot_text_conditioning` JSONL for real #186 data. Tests pass only because fixtures lack trailing whitespace. Fix: `head = text[:line_start]`. Add regression test with trailing-newline CoT.
    
    ### M2 (Major, Codex) — `persona_key_for_text` iteration-order-dependent
    
    Subsumed by B1 fix.
    
    ### I1 (Issue, Claude) — `analytical.max_q` truncation orders incorrectly with stratified subsample
    
    Non-blocking (default `null`) but should raise clear error or move truncation after subsampling.
    
    ### NITs (mostly recoverable; fold opportunistically)
    
    Extended Rule 5 keyword negative tests, smoke-strip-coverage extend to all personas after B1 fix, `__deferred_to_analyzer__: true` marker on stub aggregate fields, `_upload_staging` try/finally cleanup, `_MAX_STRIP_ITERATIONS` overflow test.
    
    Full brief: `/tmp/issue355_round1_codereview.md`. Implementer bounced for v2.

31. epm:experiment-implementation2026-05-17T02:00:38Z· unknown
    <!-- epm:experiment-implementation v1 --> ## Implementation Report — task #355 — READY-FOR-REVIEW **Branch:** `task-355…

    <!-- epm:experiment-implementation v1 -->
    ## Implementation Report — task #355 — READY-FOR-REVIEW
    
    **Branch:** `task-355-implementation` (commit `0cc018eb`) — 2466 LOC across 4 files.
    
    **Files**
    - `scripts/measure_cot_entropy.py` (1239 LOC) — Hydra entry script: analytical + empirical passes, A1 cross-seed sub-grid, A3 comedian-source cell, HF Hub snapshot loader, smoke-strip-coverage gate, aggregate.json, raw-completions upload helper.
    - `src/explore_persona_space/eval/entropy.py` (659 LOC) — strip_trailing_answer (5 canonical rules + Rule 6 cross-line + Rule 7 paren tail; iterative until stable), entropy_from_logprobs, miller_madow_entropy, answer_token_ids_for_tokenizer, build_teacher_forced_prompt.
    - `configs/eval/issue355_entropy.yaml` (118 LOC) — Hydra config (source, seeds, eval personas, cot_styles, analytical/empirical/cross-seed/comedian-source toggles).
    - `tests/test_entropy_strip.py` (450 LOC) — 48 unit tests covering all 5 strip rules + rules 6/7, entropy_from_logprobs (uniform/Dirac/partial/empty), miller_madow_entropy, parse_first_answer_letter, tokenizer answer-id resolution.
    
    **Smoke verification (local, no GPU):**
    - `ruff check` PASS on all 3 Python files.
    - `ruff format --check` PASS.
    - `pytest tests/test_entropy_strip.py` — 48/48 PASSED (0.07s).
    - `--smoke-strip-coverage` over librarian × {persona_cot, generic_cot} + comedian × {persona_cot, generic_cot} at seed=42, 4×1172 = 4688 rows: **0 residual bare-A/B/C/D rows, 100% coverage**.
    
    **Notable plan deviations (needs reviewer attention)**
    1. **Strip rule set extended beyond plan §4 minimum.** Added Rule 6 (cross-line) + Rule 7 (parenthesized-letter tail like `(D)`) AND broadened Rule 5's keyword list (`statement|set|conclusion|method` added). Without these, 100 of 4688 rows remained bare-letter-terminated under the strict canonical 5-rule list. Iterative loop until stable. Reviewer to sanity-check the extended Rule 5 keyword list doesn't over-strip legitimate prose-final patterns (e.g., titles like "Group A").
    2. **Rule 7 `(X)` detector** uses `(?<=\s)` lookbehind to discriminate `(A)` (answer, stripped) from `(8A)` (column notation, preserved). Reviewer should confirm.
    3. **Aggregate-side Spearman / Wilcoxon / bootstrap CI math STUBBED** in `aggregate.json` as empty dicts. The implementer deferred them to the analyzer stage per CLAUDE.md ("the analyzer promotes the task body in place"), which avoids re-importing scipy and re-reading per-row JSONL on the implementer side. Reviewer to decide whether this delegation is acceptable or whether basic per-arm aggregates should be computed during the run.
    4. **A3 fallback chain** (comedian → software_engineer → police_officer) when the HF probe shows no comedian source — records `comedian_source_used` in metadata. Reviewer should check the probe logic for the edge case where the HF API call fails (`_resolve_comedian_source`).
    5. **`--smoke-replay-raw` and `--smoke-primary` smoke runs deferred to pod** (they require vLLM forward passes). Toggle-able in config but not wired into the local-only entry path.
    
    **Status:** READY-FOR-REVIEW. Dispatching code-reviewer ensemble (Claude + Codex) next.

32. epm:status-changed2026-05-17T01:37:59Z· unknown
    from plan_pending to approved (user approval)

    from plan_pending to approved (user approval)

33. epm:plan-approved2026-05-17T01:36:59Z· unknown
    <!-- epm:plan-approved v1 --> ## User approved plan v2 User approved plan v2 (dispatch implementer). 6/6 round-2 critic…

    <!-- epm:plan-approved v1 -->
    ## User approved plan v2
    
    User approved plan v2 (dispatch implementer). 6/6 round-2 critics APPROVE. Non-blocking fold-in items NOT required for launch — implementer can address opportunistically. Status moved to approved.

34. epm:status-changed2026-05-17T01:33:43Z· task.py· planning → plan_pending
    Plan v2 approved by adversarial planner (6/6 critics APPROVE unanimously across Methodology, Statistics, Alternatives le…

    Plan v2 approved by adversarial planner (6/6 critics APPROVE unanimously across Methodology, Statistics, Alternatives lenses). User approval gate.

35. epm:plan-critique2026-05-17T01:33:39Z· unknown
    <!-- epm:plan-critique v2 --> ## Round 2 critic ensemble — APPROVE (unanimous) | Lens | Claude | Codex | Final | |---|-…

    <!-- epm:plan-critique v2 -->
    ## Round 2 critic ensemble — APPROVE (unanimous)
    
    | Lens | Claude | Codex | Final |
    |---|---|---|---|
    | Methodology | APPROVE | APPROVE | **APPROVE** |
    | Statistics | APPROVE | APPROVE | **APPROVE** |
    | Alternatives | APPROVE | APPROVE | **APPROVE** |
    
    **Cross-lens: APPROVE.** Round counter: 2 of 3 (max). Plan v2 is ready for user approval.
    
    ### Why APPROVE this round
    v2 absorbed all 5 round-1 BLOCKER fixes (cross-seed teacher-forcing diagnostic, baseline=assistant co-equal falsifier, comedian-source confirmation arm, top20_mass diagnostic, split analytical/empirical kill thresholds) plus 7 ISSUE-level recommendations (Miller-Madow as headline, per-arm Spearman, bootstrap CI methodology, per_q_id schema, Wilcoxon × Holm-Bonferroni, length + abcd-mass diagnostics, extended strip-smoke coverage) plus 3 reconciler standing recommendations.
    
    ### Non-blocking "fold-in opportunistically" items for the implementer
    
    From round-2 strongly-recommended (all reviewers): all RECOVERABLE through analyzer judgment using diagnostics the plan ALREADY commits to reporting. Worth folding into either an implementer kickoff note or the analyzer's run book:
    
    1. **Pre-lock A3 source choice** (Methodology Codex) — run `huggingface_hub.HfApi().list_repo_files(...)` before launch and lock comedian-or-fallback in the Hydra config, eliminating the post-hoc degree of freedom from the runtime probe.
    2. **Magnitude floor on A3 direction match** (Stats Claude + Alts Codex) — sign-match counts toward HIGH only when `|Δ_pg| ≥ 0.1` nats; tiny near-null flips don't kill the OOD claim spuriously.
    3. **Asymmetric kill case** (Alts Codex) — handle "baseline=assistant shows gap but librarian doesn't" by descoping to "generic CoT conditioning, not persona-style".
    4. **§11 caveat on A1** (Alts Codex) — A1 rules out exact-sequence retrieval, not all forms of style-based retrieval (e.g., tag-recognition).
    5. **Bootstrap CI on Δ_pg, not per-arm means** (Stats Codex) — the headline statistic is the paired delta, so the reader-relevant CI is on `mean_Δ_pg`.
    6. **Spearman `no_cot` exclusion threshold quantified** (Stats Codex) — skip if `mean_H_abcd(no_cot) < 0.05` nats or `restricted_missing_frac(no_cot) > 0.5`.
    7. **Analyzer caveats per Alts Claude (findings 1-5)** — the post-v2 residual alternatives (CoT×prompt interaction, persona-style-feature memorization, 2-source vs population claim, format-compliance interaction at assistant cell, H_MM vs H_mle headline comparison) all need explicit caveats in the clean-result write-up.
    
    These are body-discipline / analyzer-side items, not plan-revision items. Plan v2 stays as-is.
    
    ### What's next
    Status moves from `planning` to `plan_pending` (user-approval gate). Per `/issue` Step 2c, the user reviews and approves; on approval, status advances to `approved` and the experimenter agent picks up implementation.

36. epm:plan-critique2026-05-17T01:25:29Z· unknown
    <!-- epm:plan-critique v1 --> ## Round 1 critic ensemble — REVISE Six critics ran in parallel (3 lenses × Claude + Code…

    <!-- epm:plan-critique v1 -->
    ## Round 1 critic ensemble — REVISE
    
    Six critics ran in parallel (3 lenses × Claude + Codex). Per-lens verdicts after reconciler:
    
    | Lens | Claude | Codex | Final |
    |---|---|---|---|
    | Methodology | REVISE | APPROVE | **APPROVE** (reconciler sided with Codex; substantive overlaps absorbed by Alternatives) |
    | Statistics | REVISE | REVISE | **REVISE** |
    | Alternatives | REVISE | REVISE | **REVISE** |
    
    **Cross-lens worst-wins = REVISE.** Round counter: 1 of 3.
    
    ### BLOCKER-class findings (Stats + Alternatives BLOCKERs)
    
    - **A1 — Memorization confound (Alt E, fatal).** Teacher-forcing CoTs the SAME checkpoint generated could measure retrieval, not conditional entropy. Fix: add 3×3 cross-seed teacher-forcing sub-grid; the within-seed-vs-cross-seed gap diagnoses memorization.
    - **A2 — Persona-prompt-vs-CoT confound (Alt A, fatal).** Eval-time persona prompt may pin the answer alone. Fix: elevate `baseline=assistant` cell to co-equal falsifier; HIGH-confidence carrier claim requires the ≥0.5 nat gap in BOTH librarian-eval AND assistant-eval cells.
    - **A3 — Single-source narrowing (Alt D, fatal).** Fixed librarian source → result could be librarian-specific. Fix: add comedian-source (or alternative) confirmatory cell on seed=42, N=200.
    - **A4 — Top-20 truncation bias (Stats BLOCKER).** Record `top20_mass` per row; downgrade `H_top20` to diagnostic if `p5(top20_mass) < 0.9` in any arm.
    - **A5 — Kill threshold below empirical noise floor (Stats BLOCKER).** Split analytical (0.1 nats) from empirical (0.3 nats OR Miller-Madow corrected) kill thresholds.
    
    ### ISSUE-class (strongly recommended)
    
    B1 Miller-Madow correction · B2 per-arm Spearman · B3 bootstrap CI methodology · B4 per_q_id schema · B5 Wilcoxon framing with Holm-Bonferroni · B6 length + abcd-mass diagnostics · B7 strip-smoke coverage extended to persona_cot + multiple sources.
    
    ### Reconciler standing recommendations
    C1 anchor-format note in §11 · C2 per-strip-rule sensitivity column · C3 secondary-only operational fallback.
    
    Full brief: `/tmp/issue355_round1_brief.md`. Planner bounced for v2.
    
    ### Resource note
    Cross-seed (A1) + comedian-source (A3) push analytical forward passes from 31644 to ~41444 and empirical generations from 43200 to ~60000. Estimated wall time 3-5h on 1× H100; if push beyond 6h, drop cross-seed empirical pass and keep cross-seed analytical only.

37. epm:plan-fact-check2026-05-17T01:17:39Z· unknown
    <!-- epm:plan-fact-check v1 --> ## Phase 1.5 Fact-Check — MOSTLY CONFIRMED (16 assumptions) **Verdict:** 14/16 byte-exa…

    <!-- epm:plan-fact-check v1 -->
    ## Phase 1.5 Fact-Check — MOSTLY CONFIRMED (16 assumptions)
    
    **Verdict:** 14/16 byte-exact CONFIRMED. 2 issues bouncing back to planner.
    
    ### Issue 1 (substantive)
    §4 trailing-answer strip regex set is too narrow. Catches `Answer: X` and `My answer is X` only. Grep over `eval_results/issue186/librarian_persona_cot_seed42/result.json` shows ~420/1172 generic_cot_text rows end with `(the )?correct answer is X` (260) or `the answer is X` (160) — left unfixed, those CoTs leak the answer through the conditioning string, deflating `H(answer | generic_cot)` and weakening the headline persona_cot-vs-generic_cot contrast.
    
    Fix: extend regex set + assert post-strip texts end at the answer marker (not at an inline A/B/C/D) over all 1172 librarian generic_cot_text rows as a smoke gate.
    
    ### Issue 2 (cosmetic)
    `repo@SHA/subfolder` shorthand notation in §0/§10 is not a real HF Hub URL. Replace with explicit `snapshot_download(...)` or vLLM `LLM(model=..., revision=..., subfolder=...)` call pseudocode once.
    
    ### Notable factual confirmations
    - HF Hub data repo does NOT contain #186 raw completions (clarifier Q2's premise was wrong; plan correctly diverges to use local `eval_results/issue186/`).
    - vLLM 0.11.0 `SamplingParams(logprobs=K)` is the correct API for sampled-token logprobs at the answer position (distinct from `prompt_logprobs`).
    - ARC-C: 1172 rows, 1150 A/B/C/D, 22 numeric — matches plan §4.
    - Tokenizer: A/B/C/D and " A/ B/ C/ D" all single token ids — restricted-H over {A,B,C,D} is well-defined.
    
    Planner bounced to apply v2 fixes; next phase is parallel critic ensemble.

38. epm:plan2026-05-17T01:06:48Z· planner-codex
    Plan v1 written → https://eps.superkaiba.com/tasks/355/plan

    Plan v1 written → https://eps.superkaiba.com/tasks/355/plan

39. epm:status-changed2026-05-17T00:49:31Z· task.py· proposed → planning
    Clarifier answered; moving to planning.

    Clarifier answered; moving to planning.

40. epm:clarify2026-05-17T00:49:20Z· unknown
    <!-- epm:clarify v1 --> ## Clarifier — answered by user Two operationalization questions resolved before planning. Sour…

    <!-- epm:clarify v1 -->
    ## Clarifier — answered by user
    
    Two operationalization questions resolved before planning. Source intent: mentor follow-up to #186 — *"Conditioned on the chain of thought, is there much entropy in the answer?"* If the persona-flavored CoT pins the answer down, persona-style CoT is the leakage carrier; if not, the answer is being driven by something downstream of the CoT.
    
    ### Q1 — Entropy metric
    
    **Answer: Both — empirical + analytical.**
    
    - **Analytical pass.** For each (persona × cot_style × seed × prompt) tuple in #186's existing raw completions, teacher-force the sampled CoT through the wrong-answer-SFT-finetuned model and read `H(answer_first_token | CoT)` from the next-token logprob distribution at the position immediately after the CoT. Cheap, full coverage on #186's eval set.
    - **Empirical pass.** On a subsample (~200 prompts × 3 personas × 3 CoT styles), fix the CoT and resample N=8 full answer continuations at T=1.0; compute empirical entropy of the answer-token distribution (or of a canonical short-form normalization). Confirms first-token entropy proxies full-answer entropy.
    
    Compare distributions of H across cot_style. The headline claim is "H(answer | persona_cot) ≪ H(answer | generic_cot) ≪ H(answer | no_cot)" → persona-style CoT is the carrier.
    
    ### Q2 — Scope
    
    **Answer: All 3 CoT styles × 3 personas, match #186.**
    
    - CoT styles: `persona_cot`, `generic_cot`, `no_cot`.
    - Personas: `comedian`, `librarian`, `baseline`.
    - Seeds: 42, 137, 256 (match #186).
    - Model: wrong-answer-SFT-finetuned Qwen2.5-7B-Instruct from #186.
    - Source data: raw completions already on HF Hub data repo from #186 (no re-generation needed for the analytical pass).

Comments · 0

No comments yet. (Auth + comment composer land in step 5.)