These instructions apply repository-wide.
Canonical AI-facing engineering guidance lives under
docs/engineering/skills/. Use those files as the source of truth across
Codex, Claude, Copilot, and other AI tools.
When changing analytics database models or Alembic migrations, read
docs/engineering/skills/database-migrations.md.
When changing Modal current/frontier release behavior, PR release settings, or
deployment workflows, read docs/engineering/skills/modal-release-prs.md.
When adding, moving, or reviewing tests, read
docs/engineering/skills/testing.md.
Before opening, replacing, or sharing a pull request, read
docs/engineering/skills/github-prs.md.