context7

A skill for retrieving the latest library documentation using Context7. Use when the user asks about how to use a library, requests code examples, or instructs to "use context7". Prevents hallucinations based on outdated training data and provides up-to-date API information.

By dotneet · 409 installs

npx skills add dotneet/claude-code-marketplace --skill context7

Source repository · Upstream listing

Context7 Overview Context7 is a service that provides LLMs with the latest library documentation. It prevents hallucinations from outdated training data or non existent APIs, enabling retrieval of version specific accurate documentation and code examples. When to Use Use this skill in the following cases: 1. Explicit instruction : When the user instructs "use context7" or "check the latest documentation" 2. Library usage questions : When asked about how to use a specific library's API, hooks, or functions 3. Code example requests : When asked for code examples using a specific library 4. Version specific information : When library information for a specific version is needed 5. Uncertain API information : When your knowledge might be outdated and latest information verification is needed Workflow Step 1: Resolve Library ID First, obtain the Context7 ID for the target library. API call: Example: Criteria for selecting from response: trustScore : Trust score (higher is better) totalSnippets : Number of available documents (more means richer information) versions : Verify that the required version is included Step 2: Retrieve Documentation Use the resolved library ID to retrieve specific documentation. API call: Example: Query best practices: Use specific queries ("useEffect cleanup function" rather than "hooks") Be clear about the purpose ("authentication middleware", "form validation", etc.) Step 3: Respond to User Respond to the user's question based on the retrieved documentation. Information to include in the response: Retrieved code examples API explanations Documentation source URLs (for reference) Examples Example 1: React Hook Usage User: "How do I write a cleanup function with React's useEffect?" Execution steps: 1. Library search: libraryName=react , query=useEffect cleanup 2. Documentation retrieval: libraryId=/facebook/react , query=useEffect cleanup function 3. Respond with the latest code examples and best practices Example 2: Next.js Routing User: "Use context7 to show me how to implement authentication middleware with Next.js App Router" Execution steps: 1. Library search: libraryName=next.js , query=middleware authentication 2. Documentation retrieval: libraryId=/vercel/next.js , query=middleware authentication route protection 3. Respond with the latest App Router compatible middleware implementation Example 3: Multiple Libraries Combination User: "How to create a button component using TailwindCSS and shadcn/ui" Execution steps: 1. Resolve IDs for each library 2. Retrieve documentation for both 3. Respond with a combined implementation example Error Handling Error Solution 404 (Not Found) Search again with a different library name (e.g., "nextjs" → "next.js") 429 (Rate Limit) Wait a moment and retry Empty response Retry with a more general query Resources For detailed API specifications, see references/api reference.md . Endpoint details Response field descriptions Rate limit information Error code list