# Antigravity Agy: Hermes Agent plugin

> Run Hermes on a Google Antigravity subscription through the official agy CLI, with agy as the model only: a generated custom agent removes agy's built-in tools, Hermes tools are exposed through an inventory-only MCP…

Canonical: https://hermeswatcher.com/plugins/antigravity-agy  
Tier: Community  
Official page (Nous Research): https://hermes-agent.nousresearch.com/docs/plugins/antigravity-agy  
Last updated in catalog: 2026-09-26

Run Hermes on a Google Antigravity subscription through the official agy CLI, with agy as the model only: a generated custom agent removes agy's built-in tools, Hermes tools are exposed through an inventory-only MCP server with native function calling, and every tool call is handed back to Hermes. Fails closed on any non-Hermes tool step or silent agent fallback; pre-warms agy for fast tool loops.

## Good to know before installing

Routes inference through Google's official agy CLI and counts against the Antigravity/Gemini subscription agy is signed in to; the plugin never reads, copies or links agy's credential files. agy runs in your real HOME with the gateway's environment; by default the plugin moves the agy conversation records created by its own idle pre-warmed processes under ~/.gemini/antigravity-cli/ to the trash (trash-put from PATH; ANTIGRAVITY_AGY_CLEANUP=off disables) and pre-warms up to 4 idle agy processes (~400 MB each).

From the plugin's catalog listing.

## How to install

1. Install it. Hermes asks for any API keys it needs, then asks whether to turn it on.

```bash
hermes plugins install antigravity-agy
```

2. Said no? Turn it on later:

```bash
hermes plugins enable antigravity-agy
```

3. Restart Hermes so it loads the plugin.

Some plugins also need a sign-in or settings: see the official page. Memory plugins ask whether to become your memory provider instead. Steps follow the official plugins guide: https://hermes-agent.nousresearch.com/docs/user-guide/features/plugins

## Facts

- Category: AI models & providers
- Maintained by: Realtyxxx (Community)
- Needs: No API keys declared
- Works on: linux, macos
- Requires Hermes: `>=0.21.4`
- Version: 0.1.0
- In the catalog since: 2026-09-26

## Links

- [Full setup and settings (official page)](https://hermes-agent.nousresearch.com/docs/plugins/antigravity-agy)
- [Source code](https://github.com/Realtyxxx/hermes-plugin-antigravity-agy#readme)
- [All plugins](https://hermeswatcher.com/plugins.md)

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