skills.rest
ananddtyagi
ananddtyagiCOMMUNITY
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API Contract Sync Manager

Validate API contracts against backend implementations and generate TypeScript clients.

687|87|Updated Oct 9, 2025
Search Tags:#TypeScript#validation#GraphQL#OpenAPI#codegen#breaking-changes
One-click install
npx skills add https://github.com/ananddtyagi/cc-marketplace --skill api-contract-sync-manager
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: API Contract Sync Manager
Source: https://github.com/ananddtyagi/cc-marketplace/tree/main/plugins/api-contract-sync-manager/skills/api-contract-sync
Command: npx skills add https://github.com/ananddtyagi/cc-marketplace --skill api-contract-sync-manager

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes references (resource) components.

What problem does it solve?

This Skill helps ensure OpenAPI/Swagger and GraphQL schemas stay aligned with real implementations, detecting gaps, mismatches, and breaking changes to prevent integration headaches.

Core Features & Use Cases

  • Spec validation: Validate OpenAPI/Swagger and GraphQL schemas for correctness and completeness.
  • Implementation matching: Detect endpoints documented but not implemented, and endpoints implemented but not documented.
  • Code generation & migrations: Generate TypeScript types or client code from specs and provide migration guidance for breaking vs non-breaking changes.

Quick Start

Run the validator on your spec files (e.g., openapi.yaml or schema.graphql) and generate a compatibility report to review changes and required actions.

Frequently Asked Questions about API Contract Sync Manager

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I validate that my OpenAPI schema matches my API implementation?▼

API Contract Sync Manager validates OpenAPI/Swagger schemas against backend implementations by scanning code for route mappings, comparing documented endpoints to actual implementations, and flagging mismatches. Run the validator on your spec files to generate a compatibility report identifying undocumented or unimplemented endpoints.

Can I detect breaking changes in my GraphQL schema before deploying?▼

Yes. The Skill performs breaking-change analysis on GraphQL schemas by comparing old and new schema structures, categorizing changes as breaking or non-breaking, and providing migration guidance. This prevents integration failures when schema updates ship to clients.

How do I generate TypeScript client code from my OpenAPI or GraphQL schema?▼

API Contract Sync Manager generates TypeScript types and client code directly from OpenAPI/Swagger and GraphQL schemas through built-in codegen. This ensures your client always matches the documented contract and reduces manual type definitions.

What's the best way to catch API documentation drift during code review?▼

Use the Skill to validate specs against implementations as part of PR review. It scans for endpoints that exist in code but aren't documented, and documentation that describes endpoints that don't exist, surfacing gaps early when changes are cheaper to fix.

Do I need both OpenAPI and GraphQL support, or can I use just one?▼

The Skill supports both OpenAPI/Swagger and GraphQL schemas independently. Use whichever format your API uses; you don't need both unless your system exposes multiple API styles.

What happens if my REST endpoints aren't fully documented in my OpenAPI spec?▼

The validator flags endpoints implemented in code but missing from the spec, and endpoints documented but not actually implemented. You get an actionable report showing exactly what's out of sync so you can prioritize fixes.

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