Here's my problem: I study something once and completely forget it exists until the moment I actually need it, usually mid-interview, when it's too late.

I wanted to fix this without adding another thing to my already full plate. So I built two things:

An automated script that runs every morning at 8am, picks random topics from everything I've studied, and sends me a plain-text summary to iMessage. No app to open, no habit to build, it just shows up.

An interactive study agent using Antigravity CLI that I can talk to anytime. I ask it to quiz me, it quizzes me. I ask it to fill gaps in my notes, it tells me exactly what's missing.

The cool part: I take notes in Obsidian, and instead of syncing or exporting anything, I used symlinks to point the AI directly at my actual Obsidian files. Edit in Obsidian, agent sees it instantly. One source of truth.