What problem does it solve? Software decisions often depend on external facts like framework compatibility, API behavior, standards, and licensing, and guessing or relying on stale knowledge leads to broken implementations. This Skill verifies those facts against current first-party documentation and source code before they affect your plan or code. ## Core Features & Use Cases - Evidence-Based Verification: Searches, opens, and reads the actual documentation passage supporting a decision instead of trusting search snippets. - Source Prioritization: Prefers first-party platform, framework, and API documentation, with open-source repositories used for implementation patterns when official material is insufficient. - License Boundary Enforcement: Supports a no-inherited-license mode that blocks copying, porting, or adapting third-party code when the result must carry no external license obligations. - Use Case: Before integrating a new payment API, use this Skill to confirm the current endpoint behavior, authentication requirements, and version compatibility, then receive a decision-ready summary with source links. ## Quick Start Verify the current authentication requirements and version compatibility of the Stripe API before we implement the checkout flow.