A Developer's Guide to Agent Hooks in Antigravity CLI
Motivation
To be quite honest, “Hooks”—the shell commands we trigger at specific points when generative AI agents process tasks—were something I used blindly for a long time. Whenever colleagues asked me about them, I realized I lacked any real confidence in explaining how they actually work. However, when I migrated from Gemini CLI to the new Antigravity CLI, I noticed that the hooks system carried over. This felt like the right moment to stop guessing and finally develop a precise, deep understanding of the mechanism. I went back to the basics to analyze exactly how hooks operate under the hood and how we can use them effectively in the Antigravity environment. My goal is to demystify hooks so we can write them with confidence, and if this guide proves useful to your own workflows as well, I would be very glad.