What problem does it solve? Marketing teams lose track of which claims are substantiated, which offers are live, and where the proof for a specific figure lives. This Skill maintains a canonical, append-only registry of claim wording, evidence, disclosures, terms, and review dates so downstream builders and auditors work from accepted truth instead of stale drafts. ## Core Features & Use Cases - Claim & Offer Registration: Record exact wording, measurable interpretation, evidence source and date, required disclosures, scope, and review/expiry dates as events in claims.ndjson. - Proposal Review Workflow: Builders submit propose events; only a host-capability principal accepts or rejects them, keeping [needs source] items unresolved rather than silently approved. - Ledger Generation: Regenerate human-readable claims-ledger.md and offers.md views from the accepted projection, then verify consistency. - Use Case: When a teammate asks "where is the proof for this 30% faster figure?", query the claims projection by aggregate ID to return the accepted wording, evidence reference, scope, and review date. ## Quick Start Ask the agent to register claim clm-014 with its exact wording, evidence source and date, required disclosure, and review date in the claims registry.