api-contract-testing

Generate executable API contract tests and enforce CI release gates.

7|Updated Feb 14, 2026
One-click install
npx skills add https://github.com/KentoShimizu/sw-agent-skills --skill api-contract-testing-kentoshimizu
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: api-contract-testing
Source: https://github.com/KentoShimizu/sw-agent-skills/tree/main/skills/api-contract-testing
Command: npx skills add https://github.com/KentoShimizu/sw-agent-skills --skill api-contract-testing-kentoshimizu

SYSTEM DOCUMENTATION & REQUIREMENTS

## What problem does it solve? API contract testing and release-gate design to protect consumers from breaking changes, ensuring CI gates enforce compatibility across producers, consumers, versions, and transports.

## Core Features & Use Cases

  • Executable contract tests across provider/consumer pairs
  • Canonical contract alignment and template-driven matrices
  • CI gating and release decision automation

### Quick Start Run the contract-testing workflow in CI to generate executable tests and enforce release gates across API versions and transports.

Frequently Asked Questions about api-contract-testing

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

FAQPage Schema
How do I enforce API compatibility and prevent breaking changes in CI?

API contract testing validates interactions between provider and consumer pairs against a canonical baseline. It ensures API compatibility across versions and transports by generating executable tests that automatically block CI gates when breaking changes occur.

How do I set up automated release-gating for multi-transport API versions?

Set up automated release-gating by running a contract-testing workflow in CI that generates executable contract tests. This workflow maintains template-driven matrices across multi-consumer and multi-transport pairs to enforce compatibility before release.

What is a canonical contract baseline and when do I need it for API versioning?

A canonical contract baseline is a validated reference point for API behavior across versions. You need it for API versioning when diffs exist but executable evidence is missing, ensuring multi-consumer protections are maintained during release management.

Does contract testing work for protecting multiple consumers across different transports?

Yes, contract testing works for multi-consumer and multi-transport protections. It applies template-driven contract matrices to generate executable tests that validate compatibility across various provider and consumer pairs simultaneously.

Why do I need executable contract tests if I already have API diffs?

You need executable contract tests because API diffs alone lack executable evidence of actual breaking behavior. Contract tests validate provider and consumer interactions dynamically, ensuring CI gating decisions are based on verified compatibility.