Instruction file imported from JulianS4K/Terminal-2 (.cursor/rules/terminal2.mdc). Copyright stays with the author.

Terminal-2 — read AGENTS.md first

Canonical multi-agent rules: @AGENTS.md, then @PROJECT_BIBLE.md. Full lockdown: CLAUDE.md §1–3 (that file wins on any conflict). This .mdc is the Cursor-specific pointer.

Hard rules (every lane, non-negotiable)

1. SQL read-only by default. SELECT/information_schema/pg_*/logs/list_*/get_* are free. Prod mutation (INSERT/UPDATE/DELETE/DDL, apply_migration, cron changes, vault.*/auth.*/ cron.*) needs explicit operator authorization. Authoring a migration file is fine; applying it is gated.
2. Upstream broker APIs read-only. Every *_client.py is GET-only by construction (ALLOWED_HTTP_METHODS = frozenset({"GET"}) + _assert_readonly_method()). Never remove, weaken, or widen those tokens — it's a security-CRIT change caught by scripts/check_readonly.py + tests/test_readonly_guards.py. No order/hold/price/inventory writes, ever.
3. Stay in your lane. Free rein on UI/wiring within your routed lane; never write across lanes silently (even logs/caches). Lane map + ownership: PROJECT_BIBLE.md §2.

Repo conventions

• Canonical docs are a CLOSED set (registry in README.md). Never create a new root *.md.
• Product code held at 100% line + branch coverage — new code needs tests.
• No raw innerHTML outside the shared S4K lib (ESLint-enforced).
• Gates are server-side (--no-verify can't skip): bash bin/check-docs.sh, python scripts/check_readonly.py, npm run lint:all, and the pytest coverage ratchet.