# Google Antigravity Hooks > Part of [`hooks/`](../README.md) — see also [`src/hooks/`](../../src/hooks/README.md) for installation code ## Specifics - Prompt-level guidance only (no programmatic hook) -- relies on Antigravity reading custom instructions - `rules.md` contains the instruction to prefix all shell commands with `rtk`, usage examples, and meta commands - Installed to `.agents/rules/antigravity-rtk-rules.md` (project-local) by `rtk init --agent antigravity`