costco-grocery-list/AGENTS.md
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refactor
2026-02-22 01:27:03 -08:00

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Markdown

# AGENTS.md - Fiddy (External DB)
## Authority
- Source of truth: `PROJECT_INSTRUCTIONS.md` (repo root). If conflict, follow it.
- Bugfix protocol: `DEBUGGING_INSTRUCTIONS.md` (repo root).
- Do not implement features unless required to fix the bug.
## Non-negotiables
- External DB: `DATABASE_URL` points to on-prem Postgres (NOT a container).
- Dev/Prod share schema via migrations in `packages/db/migrations`.
- No cron/worker jobs. Fixes must work without background tasks.
- Server-side RBAC only. Client checks are UX only.
## Security / logging (hard rules)
- Never log secrets (passwords/tokens/cookies).
- Never log receipt bytes.
- Never log full invite codes; logs/audit store last4 only.
## Non-regression contracts
- Sessions are DB-backed (`sessions` table) and cookies are HttpOnly.
- Receipt images stored in `receipts` (`bytea`).
- Entries list endpoints must NEVER return receipt bytes.
- API responses must include `request_id`; audit logs must include `request_id`.
- Frontend actions that manipulate database state must show a toast/bubble notification with basic outcome info (action + target + success/failure).
- Progress-type notifications must reuse the existing upload toaster pattern (`UploadQueueContext` + `UploadToaster`).
## Architecture boundaries (follow existing patterns; do not invent)
1) API routes: `app/api/**/route.ts`
- Thin: parse/validate + call service, return JSON.
2) Server services: `lib/server/*`
- Own DB + authz. Must include `import "server-only";`.
3) Client wrappers: `lib/client/*`
- Typed fetch + error normalization; always send credentials.
4) Hooks: `hooks/use-*.ts`
- Primary UI-facing API layer; components avoid raw `fetch()`.
## Next.js dynamic route params (required)
- In `app/api/**/[param]/route.ts`, treat `context.params` as async:
- `const { id } = await context.params;`
## Working style
- Scan repo first; do not guess file names or patterns.
- Make the smallest change that resolves the issue.
- Keep touched files free of TS warnings and lint errors.
- Add/update tests when API behavior changes (include negative cases).
- Keep text encoding clean (no mojibake).
## Response icon legend
Use the same status icons defined in `PROJECT_INSTRUCTIONS.md` section "Agent Response Legend (required)":
- `🔄` in progress
- `✅` completed
- `🧪` verification/test result
- `⚠️` risk/blocker/manual action
- `❌` failure
- `🧭` recommendation/next step