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api-contract-normalizer

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

5|Updated Dec 31, 2025
Search Tags:#api#openapi#middleware#normalization#pagination#contract
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.

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