Live failure surfaced by user feedback: Poirot wrote a low-credibility
verdict on J. Edgar Hoover (W-0002) based on 1 actual chunk and 11
entity_mentions false positives where 'DIRECTOR'/'DIRETOR' was linked to
him by mistake. Poirot's own bias_notes correctly identified this — yet
still produced a verdict. Published on a 'Disclosure Bureau' site, that's
libellously misleading.
Deleted W-0001 (Donald Keyhoe) and W-0002 (J. Edgar Hoover) from
public.witnesses + their .md files.
Prompt rewrite (prompts/poirot.md):
- New "What counts as testimony" section up front, before discipline.
Direct testimony = the person AUTHORED, was QUOTED verbatim with
attribution, or GAVE testimony in a recorded hearing. Not: third-
party mentions, generic title appearances ('Director'/'Diretor'
that entity-extraction speculatively linked), CC lines.
- HARD FLOOR rule: emit `direct_testimony_chunk_ids[]`. If < 3, refuse
with INSUFFICIENT_TESTIMONY. For famous historical figures
(Wikipedia-worthy public figures) the floor is 5.
- Bias claims MUST cite a specific chunk; ungrounded bias claims drop.
- Tone: "careful prosecutor preparing a brief, not debunker scoring
points."
Defense in depth (poirot.ts):
- Detective enforces the same floor before calling writeWitnessAnalysis,
using a FAMOUS slug list (j-edgar-hoover, donald-keyhoe, j-allen-
hynek, curtis-lemay, vannevar-bush, eisenhower, truman, kennedy,
ted-bloecher, ...).
- When the floor isn't met, emit `poirot_refused_floor` audit event +
skip with reason like `insufficient_direct_testimony_1_of_5`.
- Sentinel parser now also catches INSUFFICIENT_TESTIMONY when it
appears on the first line of an otherwise-prose response.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
33dee46060