- Dockerfile (Node/Python/Go/Bun + claude-code + gh cli)
- docker-compose.yml (flexible REPOS_DIR, 7 mounts, 6 cache volumes)
- CLAUDE.md (team conventions + red lines + per-repo build/test cmds)
- .claude/settings.json (allow/deny permissions)
- Makefile + scripts/{enter,bootstrap,run-task}.sh
- README.md (onboarding guide)