Optimize API Design with AI: REST, GraphQL & More

Optimize API Design with AI: REST, GraphQL & More

This AI agent skill aids in designing and reviewing REST, GraphQL, and internal APIs by ensuring explicit contracts, proper validation, error management, pagination, versioning control, documentation, authentication, and compatibility.

What this skill does

• Analyzes existing API documentation, including routes, schemas, OpenAPI/GraphQL documentation, clients, tests, and authentication rules before implementing changes.
• Identifies consumers of the API such as UI interfaces, external users, workers, webhooks, integrations, and internal packages.
• Maintains existing naming conventions, error structures, pagination styles, and versioning policies unless alterations are explicitly required as part of the task.
• Preserves compatibility as a crucial product constraint, adding minimal and essential documentation near the existing source of truth when necessary.
• Reads and reviews every module the contract interacts with prior to initiating the drafting process to ensure accuracy in guarding, limits, and authentication.
• Implements input validation at the API boundaries and manages field transitions carefully across releases to maintain client-side continuity.

Who it is for

This skill is suitable for developers and teams that use AI coding agents like Claude Code, Cursor, and Codex, especially those focusing on API design, refactoring service boundaries, or writing OpenAPI and GraphQL schema documentation.

Use cases

• Creating and modifying API endpoints while ensuring backward compatibility and accurate documentation.
• Reviewing and updating GraphQL schemas to match current architectural standards.
• Refactoring existing APIs to optimize service boundaries and improve overall system efficiency.

Technical details

• Utilizes AI-enhanced skills leveraging agent-skills, aiapplication, and api-design capabilities.
• Ensures smooth integration and collaboration across different API technologies including REST and GraphQL.

Source & Licence

This package is built on open-source work published by ldaume (ldaume/agentic-engineering-harness) 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.
• Support: support@mcpcart.com — we aim to reply within 2 business days.
• 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.