What problem does it solve? Framework APIs change between versions, and code written from memory often relies on deprecated patterns or outdated signatures. This Skill grounds every framework-specific implementation decision in official documentation, so the code you receive is verifiable against current sources rather than stale training data. ## Core Features & Use Cases - Stack Detection: Reads dependency files like package.json, requirements.txt, or go.mod to identify exact framework versions before writing any code. - Documentation-Grounded Implementation: Fetches the relevant official docs page, follows documented patterns, avoids deprecated APIs, and flags anything that cannot be verified. - Source Citation: Adds full-URL citations in code comments and conversation, surfaces conflicts between docs and existing code, and treats fetched content as untrusted data to resist prompt injection. - Use Case: When building a React 19 form, the Skill detects the version from package.json, fetches the useActionState reference from react.dev, implements the documented pattern, and cites the exact source so you can verify it. ## Quick Start Ask the assistant to implement a framework-specific feature using source-driven development so every pattern is verified against the official docs and cited.