---
name: backend-api-change
description: Backend API route and contract changes for HTTP handlers, controllers, services, middleware, request/response schemas, validation, status codes, and API errors. Use when adding or changing backend API behavior.
argument-hint: '[route, endpoint, or API behavior]'
---

# Backend API Change

Canonical instructions live in `.agents/skills/backend-api-change/SKILL.md`.

When this skill is selected:

1. Read `AGENTS.md`.
2. Read `.agents/README.md` and the rules under `.agents/rules/`.
3. Read `.agents/skills/backend-api-change/SKILL.md`.
4. Follow the `.agents` skill as the source of truth.