Master API Design: Advanced AI Agent Skill for Claude & Codex
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Master API Design: Advanced AI Agent Skill for Claude & Codex
This AI agent skill assists developers in designing and reviewing HTTP/REST APIs to ensure they are consistent, evolvable, and safe to retry. It covers various aspects of API design such as resource naming, method semantics, status codes, RFC 9457 compliance, pagination, versioning, idempotency keys, ETags, rate limits, long-running operations, webhooks, and OpenAPI contracts.
What this skill does
Ensures the consistency and evolvability of API endpoints when creating or changing them.
Aids in writing and reviewing OpenAPI specifications and API pull requests.
Provides guidance on determining whether a change is breaking and how to implement it safely.
Assists in choosing the appropriate communication method — REST, GraphQL, or gRPC — for new interfaces.
Who it is for
This skill is designed for developers and teams who utilize AI coding agents like Claude Code, Cursor, and Codex, particularly those involved in API design and architecture.
Use cases
Introducing new API endpoints or modifying existing ones while maintaining backward compatibility.
Creating or revising OpenAPI documents to accurately reflect API design and functionality.
Reviewing API pull requests to ensure they adhere to design standards.
Deciding between different API paradigms (REST, GraphQL, gRPC) based on project requirements.
Technical details
The Master API Design skill leverages capabilities from agents-llm, aiapplication, and api-design to enhance the development and review process of APIs, making it an effective tool for maintaining reliable and scalable API designs.
Source & Licence
This package is built on open-source work published by reddygopalkrishna (reddygopalkrishna/developer-agent-skills) and distributed under MIT. The original licence text and copyright notice are included in your download.
Personal and commercial use, modification and redistribution are permitted, provided the original copyright and licence notice are retained.
Your purchase covers curation, licence verification, packaging, documentation and instant delivery. It does not grant exclusive rights to the underlying open-source code, which remains available under its original licence.
Delivery & Support
Delivery: instant — a secure download link is emailed to you as soon as payment is confirmed.
Format: ZIP archive containing the skill files, documentation and the original licence.
Updates: updates are included only where stated on this page.
Refunds
This is a digital product delivered immediately after purchase. By completing your order you request immediate delivery and acknowledge that, once the download has been accessed, the statutory right to cancel no longer applies to the extent permitted by law. Refund requests are handled in accordance with our published Refund Policy.
Claude, Codex, Gemini and Cursor are trademarks of their respective owners. MCP Cart is an independent marketplace and is not affiliated with, endorsed by, or sponsored by any of them. Compatibility references describe interoperability only.