groundcheck

Use when the user wants to fact-check, verify, or ground existing content — checking generated text, an answer, a report, RAG output, documentation, or code for fabricated or unsupported claims. Triggers on requests like "verify these claims", "check for hallucinations", "are these citations / numbers / APIs real", "fact-check this before I publish", or "is this actually supported by the source". Extracts atomic claims, gathers evidence (web, source files, docs, RAG context), assigns a per-claim verdict with citations, and flags which claims to retract, qualify, or send back. This is SINGLE-agent claim verification grounded in evidence — NOT multi-agent debate over which decision is best (that is agent-arena). Do not use for pure opinions, creative content, or code logic already covered by deterministic tests.