Does it identify new features that are safe to deploy?

Yes, the tool explicitly categorizes non-breaking changes such as new paths, added schemas, or new optional properties.

How does this enhance the Claude Code experience?

It provides Claude with the specialized logic needed to audit your API design work, ensuring that your AI-generated code maintains contract stability.

What types of API specifications does this skill support?

It is designed to analyze standard API documentation files, such as OpenAPI and Swagger, to detect structural changes between versions.

What is considered a breaking change by this tool?

The skill flags actions like removing endpoints, deleting HTTP methods, changing data types, or making previously optional properties required.

Can this skill be used in a CI/CD pipeline?

Yes, the command-line interface allows it to be integrated into automation scripts to prevent merging breaking API changes.

API Compatibility Checker

Name: API Compatibility Checker
Author: epieczko

byepieczko

API Development

Compares API specifications to detect breaking changes and ensure backward compatibility between versions.

About

The API Compatibility skill enables developers to automatically identify regressions and breaking changes within their API contracts. By comparing old and new versions of API specifications, such as OpenAPI or Swagger files, it flags critical issues like removed endpoints, modified property types, or newly required fields that could disrupt existing integrations. This tool is essential for teams maintaining robust backend services, ensuring that version updates do not inadvertently break the experience for API consumers.

Key Features

Flags property type changes and newly mandatory field constraints
Supports human-readable output formats for manual review
Identifies removed endpoints, HTTP methods, and model schemas
Highlights non-breaking enhancements like new optional fields
0 GitHub stars
Automated detection of breaking changes in API specifications

Use Cases

Validating API schema updates before deploying new backend versions
Auditing changes between legacy and modern API documentation versions
Ensuring backward compatibility in CI/CD pipelines during code reviews

About

Key Features

Flags property type changes and newly mandatory field constraints
Supports human-readable output formats for manual review
Identifies removed endpoints, HTTP methods, and model schemas
Highlights non-breaking enhancements like new optional fields
0 GitHub stars
Automated detection of breaking changes in API specifications

Use Cases

Validating API schema updates before deploying new backend versions
Auditing changes between legacy and modern API documentation versions
Ensuring backward compatibility in CI/CD pipelines during code reviews