What problem does it solve? When a change touches multiple layers of an application—backend APIs, frontend code, configuration, and documentation—teams often update one layer and forget the others, causing broken contracts, stale docs, and inconsistent behavior. This Skill provides a structured checklist to ensure every impacted layer is updated atomically in the same change. ## Core Features & Use Cases - Backend-to-Frontend Sync Checks: Verifies API contracts, fields, permissions, response structures, and i18n keys stay aligned between Go backend and React frontend. - Documentation Sync Enforcement: Ensures bilingual docs (English and zh-CN), API references, and deployment guides reflect runtime behavior changes. - Verification & Exit Criteria: Defines lint, build, format, and test commands plus manual verification steps before a change can be marked complete. - Use Case: After adding a new API endpoint to the backend, run this checklist to confirm the frontend API client, UI components, i18n translations, and API reference documentation are all updated in the same commit. ## Quick Start Ask the AI to run the cross-layer synchronization checklist for a change that modifies both the backend API and the frontend views.
