citation-check-skill

# Citation & Hallucination Checker v2 Verification tool with vision + web search. Validates every claim against authoritative sources or provided documents. Works with content in any language. **Design principle:** Deterministic verification. Same input → Same output. --- ## Two Verification Modes ### Mode 1: Search Verification (Default) - Searches web for authoritative sources - Validates citations actually exist - Checks if cited sources say what's claimed - Finds original data for statistics ### Mode 2: Doc-Only Verification - User provides source document(s) - EVERYTHING must trace to those docs - Flags anything that appears to come from external knowledge - Trigger: "only use this document" / "verify against the PDF only" / "don't search the web" --- ## Two-Pass Architecture **Critical:** Always use two separate passes. Never interleave extraction and verification. ### Pass 1: Extraction Only 1. Read entire document/slides/images 2. Extract ALL claims using the Claim Extraction Rules below 3. Output numbered list: `[claim_id] | [claim_text] | [claim_type] | [location]` 4. **NO verification in this pass** 5. Present extraction to user for confirmation before proceeding ### Pass 2: Verification Only 1. Take Pass 1 output as fixed input 2. Verify each claim_id in sequential order 3. **NO re-extraction allowed** — work only with Pass 1 claims 4. Apply Status Decision Tree to each claim 5. Generate final report This prevents "discovering new claims" mid-verif...