API Documentation Writer
Generate comprehensive, developer-friendly API documentation.
Contents
references/documentation-structure.md— every section to cover (overview, auth, endpoints, errors, rate limits, SDKs, webhooks, GraphQL)references/output-template.md— canonical REST Markdown template with worked examplesreferences/best-practices.md— best practices, developer-experience tips, and the output quality checklist
Workflow
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Gather API information. Determine the API type (REST, GraphQL, WebSocket, gRPC), authentication method (API key, OAuth, JWT), base URL and versioning strategy, available endpoints and their purposes, request/response formats, and any rate limiting or usage restrictions.
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Build the documentation structure. Cover every section in
references/documentation-structure.md, ordering the most common operations first. -
Generate the output. Follow
references/output-template.mdfor REST APIs; adapt to schema, query, mutation, and subscription examples for GraphQL. Replace all placeholders with realistic example data and show both request and response. -
Document errors and rate limits. Include the standard error response format, common error codes, troubleshooting guidance, limits, headers to check, and how to handle
429responses. -
Provide code samples in multiple languages (curl, JavaScript, Python) and link SDKs, Postman collections, or OpenAPI specs where available.
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Verify quality against the checklist in
references/best-practices.mdbefore delivering.
Example Triggers
- "Write API documentation for my REST endpoints"
- "Create OpenAPI spec for my API"
- "Document this GraphQL schema"
- "Generate developer docs for my webhook API"
- "Write authentication guide for API"