backend-api-ai

# Backend API And AI This skill is for `backend/`. ## Focus Areas - route and controller changes - auth and user flows - article CRUD and list/detail responses - sitewide chat streaming and citation metadata - maintenance scripts such as pruning and vector sync - data model changes ## Working Rules - Read the route, controller, service, and model together before changing behavior. - Preserve response contracts unless the frontend is updated in the same task. - Treat auth changes as security changes, not routine refactors. - Check for build and deploy drift if you change runtime entrypoints or scheduled handlers. - Prefer explicit env validation over silent fallback behavior. ## Validation - Run `cd backend && npm test` for behavior changes when feasible. - If you change scripts, ensure the relevant script still maps to a real file. - If you change chat behavior, read `RAG_CHATBOT.md` and `CHATBOT_GUARDRAILS.md`. ## References - For backend commands, env, and fragile files, read `references/backend-map.md`. - For chat-specific guidance, read `references/chat-surface.md`.