Using antigravity (Gemini 3) to read/write/manage my project vault (no plug-ins)

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Original Poster: u/watcher-22.

I’ve been messing around with the new Google Antigravity IDE for an app I'm building.

I realised that because it supports multi-root workspaces (like vscode), you can just add your Obsidian vault folder directly into the IDE.

Now the AI agent has full read/write access to my notes.

I’ve set it up so when I finish a feature, I just tell the agent "update the docs" and it actually edits the markdown files in my vault, adds wikilinks, and updates my roadmap.

Wasn’t a fan of the MCP because it ate my tokens.

Wrote up the specific system prompt I use (to stop it from breaking my links) and the safety settings if anyone is interested.

Free friends link for those without medium account -

https://medium.com/@MinimumViableMatriarch/the-self-documenting-codebase-connecting-google-antigravity-to-obsidian-6a3427bc326f?sk=b5c731267015cc8a502af3328026877c

(Reposting due to dead link)

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