Update project documentation after code changes. Use when adding features, changing APIs, modifying architecture, or restructuring code. Ensures copilot-instructions.md, backend/README.md, frontend/README.md, and PROJECT_PLAN.md stay in sync with the codebase.
After any code change that affects:
| File | Update when... |
|---|---|
.github/copilot-instructions.md | Architecture, conventions, build commands, or project structure change |
backend/README.md | Backend API endpoints, setup steps, project structure, or tech stack change |
frontend/README.md | Frontend structure, components, pages, or tech stack change |
PROJECT_PLAN.md | Game rules, state machine, or high-level design decisions change |