Find Docs (Context7)

Look up an external library's current API in Context7, but only when the code at hand cannot answer the question.

1. Gate: do not query anything yet

An external lookup is the last resort, not the first step. Check these in order and stop as soon as one of them answers the question:

1. The installed package. node_modules/<pkg>/package.json gives the exact version in use and the bundled .d.ts files give the real signature for that version. This beats any documentation, because it is the code that will actually run.
2. The project's own call sites. Grep for the symbol. A working usage already in the repo settles the signature and the project's conventions at the same time.
3. A dedicated skill. shadcn components, Supabase, Next.js and Vercel, and the Anthropic API each have their own skill. Those are closer to the source, use them.