mtarcure/claude-vibe-squad/claim-verification

Claim Verification

Decompose content into load-bearing claims and verify each against evidence (Hard Rule 8 truth gate).

Steps

1. Decompose the content into discrete load-bearing claims.
2. Classify each claim: fact | quote | calculation | forecast | opinion | inference.
3. Map each claim to the exact evidence span that would confirm it.
4. Verify against sources; for web claims, route a grounding worker (Gemini grounding or research handoff) that returns a typed evidence bundle, then adjudicate it.
5. Reproduce any arithmetic and check units/internal consistency.
6. Return a per-claim verdict: supported | unsupported | unverifiable.

Acceptance

• Every load-bearing claim is classified and mapped to evidence.
• "Unverifiable" is distinguished from "false"; a model cutoff is never treated as verification.
• No PASS while a load-bearing claim remains unverifiable.