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Directory / Awesome Copilot skills (GitHub) / api-breaking-change-detector

api-breaking-change-detector

skill Software development

Cross-references C# Web API controllers/DTOs against their TypeScript/JavaScript consumers (React, Angular, Vue, Svelte, Node.js, or hand-written/auto-generated HTTP clients like Fetch, Axios, NSwag) to catch contract drift in both directions: backend changes that break client applications (renamed/removed JSON keys, new required parameters, status code shifts) and frontend code sending fields the backend no longer reads. Works directly against source code, not exported OpenAPI spec files. Use when the user asks to check for breaking API changes, verify frontend/backend contract sync, or audit a DTO/controller change against its TypeScript/JS consumers before merging. Not for generating new API code from a spec (see openapi-to-application-code) or scaffolding new endpoints (see aspnet-minimal-api-openapi).
Description from the SKILL.md front matter.

Install

GitHub CLI v2.90+ (Copilot by default)
gh skill install github/awesome-copilot api-breaking-change-detector
For Claude Code
gh skill install github/awesome-copilot api-breaking-change-detector --agent claude-code
For Codex
gh skill install github/awesome-copilot api-breaking-change-detector --agent codex

Commands follow each host's documentation (GitHub Copilot, plus Claude Code, Codex, Cursor via gh skill docs). gh skill needs GitHub CLI 2.90 or later and is in public preview.

Listed from GitHub + community contributors's catalog, not reviewed by us. Read the source before installing.

Catalog
Awesome Copilot skills (GitHub)
Author
Not stated in the source
Source code
github/awesome-copilot
License
MIT (repository license)
Repository stars
40,178 for github/awesome-copilot (the whole catalog repo)
Added to catalog
Not tracked for this source
Last change
2026-10-16 (last push to the repo)

What it contains

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