What problem does it solve? Research and recommendations often rely on unverified claims, stale facts, or decorative browsing. This Skill enforces a source-backed workflow so every claim maps to a recorded source with retrieval dates, and uncertainty is stated explicitly instead of hidden. ## Core Features & Use Cases - Source Ledger: Records title, publisher, URL, retrieval date, authority rationale, and the exact claim each source supports. - Claim-to-Source Mapping: Separates source facts, interpretation, recommendations, and unknowns using an evidence standard. - Blocked-State Handling: Returns BLOCKED or local-evidence-only output when external access is unavailable, never inventing citations. - Use Case: When deciding which library or API version to adopt, use this Skill to check local notes first, consult official documentation, and deliver a recommendation with cited sources, tradeoffs, and one next action. ## Quick Start Use the okhp3-source-backed-research skill to answer this question with traceable sources and explicit uncertainty.