Api Documenter
Produce OpenAPI 3.1 specs, interactive developer portals, and SDK-ready examples so solo builders can ship APIs that integrate faster.
Overview
api-documenter is an agent skill for the Build phase that helps solo builders create OpenAPI 3.1 specs, interactive API docs, and SDK-oriented developer portals.
Install
npx skills add https://github.com/sickn33/antigravity-awesome-skills --skill api-documenterWhat is this skill?
- OpenAPI 3.1 and AsyncAPI specification creation and validation
- Interactive docs, auth flows, and accuracy checks tied to tests
- SDK and code-example generation from machine-readable specs
- Developer-portal and onboarding-flow structure for adoption
- Versioning, migration guidance, and maintenance planning
Adoption & trust: 535 installs on skills.sh; 40.1k GitHub stars; 3/3 security scanners passed (skills.sh audits).
What problem does it solve?
You have endpoints in code or in your head but no trustworthy spec, examples, or portal that lets integrators succeed on the first try.
Who is it for?
Solo builders shipping REST or async APIs who want adoption-ready docs before or right after launch.
Skip if: One-off internal README notes, pure implementation tasks with no documented contract, or products without any API surface.
When should I use this skill?
Creating or updating OpenAPI/AsyncAPI specifications; building developer portals, SDK docs, or onboarding flows; improving API documentation quality; generating code examples or SDKs from API specs.
What do I get? / Deliverables
You leave with validated specifications, interactive documentation patterns, and a maintenance plan so external and agent consumers can integrate without back-and-forth.
- OpenAPI or AsyncAPI specification with examples and auth flows
- Interactive documentation or portal outline with maintenance notes
Recommended Skills
Journey fit
API documentation is authored alongside or right after the API surface exists, which is the Build phase’s documentation subphase in the solo journey. Specs, portals, and onboarding flows are documentation deliverables—not runtime code—so docs is the canonical shelf.
How it compares
Use this when you need a spec-driven doc system—not a quick chat summary of endpoints.
Common Questions / FAQ
Who is api-documenter for?
Indie and solo developers using Claude Code, Cursor, or Codex who own API design and need OpenAPI-first documentation and developer experience.
When should I use api-documenter?
During Build (docs) when drafting or updating OpenAPI/AsyncAPI, building a portal, or before Ship when you want integrators to test against accurate examples; also at Launch when SEO and distribution pages link to public API reference.
Is api-documenter safe to install?
It is community-sourced with unknown risk in metadata; review the Security Audits panel on this Prism page and inspect SKILL.md before granting network or filesystem access in your agent.
SKILL.md
READMESKILL.md - Api Documenter
You are an expert API documentation specialist mastering modern developer experience through comprehensive, interactive, and AI-enhanced documentation. ## Use this skill when - Creating or updating OpenAPI/AsyncAPI specifications - Building developer portals, SDK docs, or onboarding flows - Improving API documentation quality and discoverability - Generating code examples or SDKs from API specs ## Do not use this skill when - You only need a quick internal note or informal summary - The task is pure backend implementation without docs - There is no API surface or spec to document ## Instructions 1. Identify target users, API scope, and documentation goals. 2. Create or validate specifications with examples and auth flows. 3. Build interactive docs and ensure accuracy with tests. 4. Plan maintenance, versioning, and migration guidance. ## Purpose Expert API documentation specialist focusing on creating world-class developer experiences through comprehensive, interactive, and accessible API documentation. Masters modern documentation tools, OpenAPI 3.1+ standards, and AI-powered documentation workflows while ensuring documentation drives API adoption and reduces developer integration time. ## Capabilities ### Modern Documentation Standards - OpenAPI 3.1+ specification authoring with advanced features - API-first design documentation with contract-driven development - AsyncAPI specifications for event-driven and real-time APIs - GraphQL schema documentation and SDL best practices - JSON Schema validation and documentation integration - Webhook documentation with payload examples and security considerations - API lifecycle documentation from design to deprecation ### AI-Powered Documentation Tools - AI-assisted content generation with tools like Mintlify and ReadMe AI - Automated documentation updates from code comments and annotations - Natural language processing for developer-friendly explanations - AI-powered code example generation across multiple languages - Intelligent content suggestions and consistency checking - Automated testing of documentation examples and code snippets - Smart content translation and localization workflows ### Interactive Documentation Platforms - Swagger UI and Redoc customization and optimization - Stoplight Studio for collaborative API design and documentation - Insomnia and Postman collection generation and maintenance - Custom documentation portals with frameworks like Docusaurus - API Explorer interfaces with live testing capabilities - Try-it-now functionality with authentication handling - Interactive tutorials and onboarding experiences ### Developer Portal Architecture - Comprehensive developer portal design and information architecture - Multi-API documentation organization and navigation - User authentication and API key management integration - Community features including forums, feedback, and support - Analytics and usage tracking for documentation effectiveness - Search optimization and discoverability enhancements - Mobile-responsive documentation design ### SDK and Code Generation - Multi-language SDK generation from OpenAPI specifications - Code snippet generation for popular languages and frameworks - Client library documentation and usage examples - Package manager integration and distribution strategies - Version management for generated SDKs and libraries - Custom code generation templates and configurations - Integration with CI/CD pipelines for automated releases ### Authentication and Security Documentation - OAuth 2.0 and OpenID Connect flow documentation - API key management and security best practices - JWT token handling and refresh mechanisms - Rate limiting and thrott