api-contract-normalizer

Normalize RESTful API responses with standard envelopes, errors, and pagination.

5|Updated Dec 31, 2025
One-click install
npx skills add https://github.com/patricio0312rev/skillset --skill api-contract-normalizer-patricio0312rev
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: api-contract-normalizer
Source: https://github.com/patricio0312rev/skillset/tree/main/templates/backend/api-endpoint-generator
Command: npx skills add https://github.com/patricio0312rev/skillset --skill api-contract-normalizer-patricio0312rev

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

Unifies API response patterns across endpoints to ensure a consistent envelope, structured errors, reliable pagination, and a clear versioning strategy for faster development and easier client integration.

Core Features & Use Cases

  • Standard Response Envelope with ApiResponse<T>, ApiError, and ResponseMeta
  • Pagination Standards for page-based and cursor-based flows
  • Error Standards with a taxonomy and status mapping
  • Shared TypeScript types and OpenAPI documentation
  • Middleware to automatically normalize responses
  • Phased Migration plan to rollout API contract changes
  • Versioning strategy across paths and headers

Quick Start

Install the library and wire the normalization middleware into your API server to standardize responses across endpoints.

Frequently Asked Questions about api-contract-normalizer

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

FAQPage Schema
How do I standardize API responses across multiple endpoints?

To standardize API responses, wire normalization middleware into your API server to enforce a consistent envelope, structured errors, and reliable pagination across all backend endpoints.

What is the best way to handle pagination and error taxonomy in OpenAPI documentation?

Handle pagination and error taxonomy by applying standard response formats like ApiResponse<T> and ApiError, ensuring your OpenAPI documentation accurately reflects page-based and cursor-based flows.

Can I use normalization middleware for API versioning and shared TypeScript types?

Yes, normalization middleware supports API versioning across paths and headers while providing shared TypeScript types like ApiResponse<T> and ResponseMeta to ensure consistent client integration.

How do I rollout API contract changes without breaking existing clients?

Rollout API contract changes using a phased migration plan that standardizes response envelopes and status-code mappings gradually, ensuring backend endpoints transition smoothly without breaking existing clients.

Does this API contract normalization approach work with RESTful services?

Yes, this API contract normalization approach works directly with RESTful services, applying standard response envelopes and error taxonomy to backend endpoints and middleware.