contract-testing

Manage microservices contract testing with Pact and OpenAPI.

Updated Jun 15, 2026

Search Tags:#versioning #microservices #api testing #contract testing #pact

Ready to run

npx skills add https://github.com/CENKSSS/valocase-backend --skill contract-testing-cenksss

💬 Prompt for ChatGPT / Claude Chat▼

Please help me install this Agent Skill.
Skill: contract-testing
Source: https://github.com/CENKSSS/valocase-backend/tree/main/.claude/skills/contract-testing
Command: npx skills add https://github.com/CENKSSS/valocase-backend --skill contract-testing-cenksss

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill requires pact-foundation/pact, openapi-generator, pact-broker, and includes scripts (resource) and references (resource) and assets (resource) components.

What problem does it solve?

This Skill streamlines contract testing, versioning, and maintenance for microservices, ensuring seamless coordination between distributed teams and API consumers.

Core Features & Use Cases

Consumer-Driven Contract Testing: Defines and verifies API contracts using Pact, ensuring compatibility and preventing breaking changes.
API Versioning: Semantically versions APIs, managing backward compatibility and deprecation policies.
Breaking Change Detection: Identifies breaking changes and suggests semver recommendations to maintain API stability.
CI/CD Integration: Blocks deployments that violate API contracts, enhancing release quality.
Use Case: Coordinate distributed teams on microservices development by defining and testing API contracts, ensuring seamless integration and backward compatibility.

Quick Start

Use the contract-testing skill to define and verify API contracts for your microservices.

Frequently Asked Questions about contract-testing

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

FAQPage Schema

How do I automate contract testing for microservices using Pact?▼

You can automate contract testing for microservices by using this Skill to define consumer-driven contracts with Pact, verify API compatibility, and integrate the verification steps directly into your CI/CD pipelines to block breaking deployments.

What is consumer-driven contract testing and when do I need it?▼

Consumer-driven contract testing is a mechanism where consumers define expected API interactions as contracts, which providers verify. You need it to prevent breaking changes and ensure seamless integration between distributed microservices teams.

How do I detect breaking changes and manage API versioning for microservices?▼

This Skill detects breaking changes by validating API schemas using OpenAPI and suggests semver recommendations for API versioning, helping you maintain backward compatibility and enforce deprecation policies across microservices.

Can I integrate pact-broker into my existing microservices CI/CD pipelines?▼

Yes, you can integrate pact-broker into your CI/CD pipelines. This Skill uses pact-broker to manage contract exchange and blocks deployments that violate API contracts, enhancing release quality for distributed teams.

Do I need OpenAPI to validate API schemas in contract testing?▼

Yes, this Skill requires OpenAPI alongside pact-foundation/pact to perform schema validation, ensuring that API contracts between microservices consumers and providers remain structurally compatible during testing.

What are the limitations of consumer-driven contract testing for microservices?▼

Consumer-driven contract testing focuses on API interactions and schema compatibility but does not test business logic or end-to-end workflows; it requires consistent contract maintenance and pact-broker integration to prevent deployment failures.