Follow AGENTS.md for repository-wide rules. Start with .agent/README.md and use its task router; do not preload the whole .agent directory. Use Menhir structural queries before filesystem search, check blast radius before edits, preserve unrelated worktree changes, and run focused affected tests.
Copilot instructions for Archolith/menhir: Follow AGENTS.md. Start with .agent/README.md and use its task router rather than reading all project documentation. Prefer structural queries before filesystem search, check blast radius before edits, preserve unrelated worktree changes, and suggest focused affected tests.
Claude Code instructions for Archolith/menhir: Follow AGENTS.md. Start with .agent/README.md and use its task router; do not read the entire .agent/ tree by default.