wiki-contradictor

Phase-7 zero-network contradiction scorer for the inverted pipeline. Reads the just-deposited <wiki>/syntheses/<slug>.md + each cited page's claim frontmatter (pre_extracted_claims on wiki/sources/<slug>.md; distilled_claims on wiki/{concepts,entities}/<slug>.md; answer_claims on wiki/questions/<slug>.md — distilled pages and question nodes are citable + scored, against text which has no excerpt_quote), walks the synthesis body sentence-by-sentence against every claim, AND scores the same synthesis sentences against the assertive sentences of each prior wiki/syntheses/<slug>.md page (synthesis-vs-prior-syntheses, conflicting_claim_id null — syntheses carry no claim block), emitting <project>/.metadata/contradictor-vN.json (schema 0.1.0) with findings carrying kind ∈ {contradiction, unknown} and severity ∈ {high, medium, low}. Pure observability — no auto-resolution, no rollback, no behaviour change downstream. Approach (a) + the synthesis-vs-prior-syntheses surface; partially defends references/differentiation-thesis.md Pillar 2 at synthesis-write time. Never fetches and never modifies any wiki page — the alignment surface is the synthesis body matched against claims extracted at ingest/distill time and against prior synthesis bodies.