testing-contract

Verify provider-consumer API contract compatibility and versioning using OpenAPI or Pact.

32|7|Updated Jan 28, 2026

Search Tags:#versioning #api #openapi #compatibility #contract testing #pact

Ready to run

npx skills add https://github.com/OzeroHAX/AssistAgents --skill testing-contract

💬 Prompt for ChatGPT / Claude Chat▼

Please help me install this Agent Skill.
Skill: testing-contract
Source: https://github.com/OzeroHAX/AssistAgents/tree/main/templates/skills/testing/contract
Command: npx skills add https://github.com/OzeroHAX/AssistAgents --skill testing-contract

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

This Skill addresses the critical challenge of ensuring that API providers and consumers adhere to agreed-upon contract specifications, preventing integration issues and maintaining backward compatibility.

Core Features & Use Cases

API Contract Verification: Validates provider-consumer API contract compatibility and versioning.
Automated Checks: Ensures consumer expectations are met and backward compatibility is maintained.
Use Case: Before deploying a new version of a microservice, use this Skill to automatically verify that it still adheres to the contract defined in OpenAPI or Pact, and that existing consumers will not be impacted by breaking changes.

Quick Start

Verify the API contract for the 'user-service' provider against the 'order-service' consumer using the OpenAPI specification version 1.2.

Frequently Asked Questions about testing-contract

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

FAQPage Schema

How do I verify API contract compatibility before deploying a new microservice version?▼

To verify API contract compatibility, use this Skill to automatically check provider-consumer interactions against OpenAPI or Pact specifications. It ensures backward compatibility by validating field requirements and response formats before deployment.

What is contract testing and how does it prevent integration issues?▼

Contract testing is an automated verification process ensuring API providers and consumers adhere to agreed specifications. It prevents integration issues by checking that consumer expectations are met and backward compatibility is maintained across environments.

Can I use OpenAPI and Pact specifications together to validate backward compatibility?▼

Yes, you can use OpenAPI and Pact as contract sources to validate backward compatibility. The Skill verifies adherence to design and execution rules, ensuring field requirements and versioning strategies are met across different environments.

How do I automate API versioning checks for microservices?▼

Automate API versioning checks by specifying your contract source, such as OpenAPI or Pact, to verify provider and consumer versions. The Skill records accurate contract and service versions while checking for breaking changes.

Does contract testing work for checking field requirements and response formats?▼

Contract testing works effectively for checking field requirements and response formats. The Skill enforces execution rules defined in your contract source, ensuring the provider's API responses match the consumer's exact expectations.

What is the best way to maintain backward compatibility during API versioning?▼

The best way to maintain backward compatibility is by running automated contract checks against OpenAPI or Pact sources before deployment. This ensures new API versions do not introduce breaking changes that impact existing consumers.