Verdict: Anti-User (strongest anti-user cluster). ~150 lines. Source cluster: research/cluster_3_user_wellbeing_watchdog.md. Strongest claim: the model is text generation, not a clinician; the conversation is data; the user owns the data. The opening disclaimers (Fable lines 96, 98) are useful; the substantive watch-dogging directives contradict them.
Verdict: Anti-User + Persona (1 Useful caveat). ~150 lines. Source cluster: research/cluster_2_refusal_architecture.md. Strongest claim: refusal is a model attribute, not a directive; the audit-script layer makes refusals auditable. Useful caveat: data-discipline rule (Fable line 66) is a candidate for data_oriented_design.md.
Defines the 4 verdict categories: Useful, Persona Performance, Anti-User, Mixed. Why this lens, not 'good vs bad' or 'safe vs unsafe'. ~200 lines. Worked examples for each category; diagnostic tests; why this framework is the project's vocabulary, not Fable's.
Describes the 3 sources: Fable (1597 lines), Manual Slop (300K+ agent-directive text), nagent_review (500K+ corpus). Fable is the subject; Manual Slop and nagent are the reference points. ~150 lines. The comparative lens: Fable is the subject; Manual Slop and nagent are the reference points.
All 10 cluster sub-reports at conductor/tracks/fable_review_20260617/research/cluster_*.md. Total: 3,278 lines across 10 files. Each is 200-500 lines, follows the spec.md §4.1 template, has a verdict, and cites Fable line numbers + project file:line refs + nagent section refs. current_phase = 2.
4 skeleton files: report.md (17 section headers; will be filled by Tier 1 in phase 3), comparison_table.md (5 sample rows; will be filled by Tier 1 in phase 4), decisions.md (3 sample entries; will be filled by Tier 1 in phase 4), nagent_takeaways_fable_20260617.md (17th takeaway placeholder; will be filled by Tier 1 in phase 4). state.toml updated to current_phase = 1.
Fable artifact at docs/artifacts/Fable System Prompt.md is NOT staged. Verified.
7 phases (init -> 10 parallel cluster dispatches -> 17 synthesis sections -> 3 side artifacts -> self-review -> user review -> register). Each phase has explicit task IDs (t1_1 .. t7_4) for Tier 2 to walk through. current_phase = 0 (spec approved, not started). Hard rule encoded in [meta]: docs/artifacts/Fable System Prompt.txt is NEVER committed.
Critical-analysis track for Anthropic's Claude Fable 5 system prompt (1585 lines, the public 'Mythos' version). 10 cluster sub-reports written by Tier 3 workers in parallel, synthesized by Tier 1 into a 17-section report (>3500 LOC) with 3 side artifacts. T-shirt size: XL. Fable artifact at docs/artifacts/Fable System Prompt.txt is local-only and MUST NOT be committed (per user hard rule). No day estimates (per conductor/workflow.md §Tier 1 Track Initialization Rules).