Evidence-granularity audit

audit_listing and query_verdict both return a verdict on a listing and could be confused at a glance, though cost and argument differences (siblings vs listing_id, full audit vs precomputed) help. verify_verdict is clearly distinct as a free signature check.

All three names follow a clean verb_noun pattern: audit_listing, query_verdict, verify_verdict. Predictable and readable.

Three tools is on the lean side but each maps to a distinct step: compute an audit, fetch a precomputed verdict, verify a signature. Well-scoped for a narrow audit domain, though slightly thin.

The surface covers producing, retrieving, and verifying a signed verdict, which is the core lifecycle. Minor gaps like listing discovery or batch verification exist but are workable around.