Context7 Documentation Lookup

Fetch up-to-date library documentation via Context7 MCP instead of relying on stale training data.

Requires: Context7 MCP configured (context7 in mcp list)

When to Use

Use Context7 when:

• •User asks about library/framework APIs
• •Version-specific features (React 19, Next.js 15, etc.)
• •User mentions outdated docs or getting errors
• •Unsure if training data is current

Do NOT rely on training data for library APIs. Use Context7 to fetch live docs.

Workflow

1. •resolve-library-id → Get library ID (e.g., "/facebook/react")
2. •query-docs → Fetch docs for specific topic
3. •Answer using fetched documentation

Example

User: "How do I use React 19's use hook?"

resolve-library-id("react") → "/facebook/react"
query-docs(library_id="/facebook/react", query="use hook") → [docs]
Answer from fetched docs

Red Flags - Use Context7

• •"How do I..." + library name
• •Version numbers (v19, 15.x)
• •"docs seem outdated"
• •"I keep getting errors"

Do NOT Skip Because

If Context7 Unavailable

Check mcp list for context7. If not configured, fall back to WebSearch but warn user that docs may not be current.