api-contract-checker
Validate API changes against an expected contract. Use when a mid-level developer needs to detect breaking changes.
Best use case
api-contract-checker is best used when you need a repeatable AI agent workflow instead of a one-off prompt.
Validate API changes against an expected contract. Use when a mid-level developer needs to detect breaking changes.
Teams using api-contract-checker should expect a more consistent output, faster repeated execution, less prompt rewriting.
When to use this skill
- You want a reusable workflow that can be run more than once with consistent structure.
When not to use this skill
- You only need a quick one-off answer and do not need a reusable workflow.
- You cannot install or maintain the underlying files, dependencies, or repository context.
Installation
Claude Code / Cursor / Codex
Manual Installation
- Download SKILL.md from GitHub
- Place it in
.claude/skills/api-contract-checker/SKILL.mdinside your project - Restart your AI agent — it will auto-discover the skill
How api-contract-checker Compares
| Feature / Agent | api-contract-checker | Standard Approach |
|---|---|---|
| Platform Support | Not specified | Limited / Varies |
| Context Awareness | High | Baseline |
| Installation Complexity | Unknown | N/A |
Frequently Asked Questions
What does this skill do?
Validate API changes against an expected contract. Use when a mid-level developer needs to detect breaking changes.
Where can I find the source code?
You can find the source code on GitHub using the link provided at the top of the page.
SKILL.md Source
# API Contract Checker ## Purpose Validate API changes against an expected contract. ## Inputs to request - Old and new API specs or examples. - Versioning policy and client expectations. - Known consumers and usage patterns. ## Workflow 1. Compare endpoints, request/response fields, and status codes. 2. Identify breaking changes and backward-compatible adjustments. 3. Suggest versioning or migration notes. ## Output - Breaking change report with mitigation steps. ## Quality bar - Flag any removal or behavior change clearly. - Recommend safe rollouts for clients.
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