agy: Antigravity CLI plugin
A plugin that calls Antigravity CLI from inside Claude Code: quick prompts, delegated tasks and a second opinion on your diff.
- 81 ★ on the repository
- Last commit
- MIT
Extended access
Why this level
- The subagent hands tasks to an external model that can edit project files.
- For review, your `git diff` and prompts go to a Google service.
Install
- Works in
In your terminal, with SkillFoxx CLI
npx skillfoxx add plugins/agy-antigravity-cli-pluginDetects the agents on your machine, shows the access level and pins the version.
Other ways to install
Access and checks
How we reviewExtended accessThe tool runs code or makes network calls and only reads external data.
- The subagent hands tasks to an external model that can edit project files.
- For review, your `git diff` and prompts go to a Google service.
This is third-party code. Review the repository files before installing.
What it does
The `agy` plugin gives Claude Code a set of commands for Google Antigravity CLI. `/agy:ask` sends one prompt through `agy -p` and returns the raw reply, `/agy:delegate` hands a task to the `agy:runner` subagent, `/agy:research` starts a deep investigation of a topic, `/agy:image` generates a picture with the built-in `generate_image` tool, and `/agy:review` asks Antigravity to review your current `git diff`. The design is deliberately small: no Node runtime, no broker and no review-gate hook, just Bash and `agy`. The `--background` flag pushes long jobs to the background and `--model` picks a model by alias.
Who it is for. Claude Code users who already work with Antigravity or want to add it without leaving their editor.
Good fit when
- You ask Antigravity for an independent review of the current `git diff` before committing.
- A long investigation of a topic goes to the background while you keep editing code.
- You need an image for a README and request it with a single `/agy:image` command.
- The same question is worth asking a second model to compare answers.
Not a fit when
- Antigravity CLI is not installed and you do not want to install it.
- Your `agy` is older than 1.2.0 and you need the `--model` flag.
- The environment has no Bash, for example plain Windows without WSL.
Example request
Use /agy:review to ask Antigravity to assess my current diff and highlight error-handling remarks.Limitations
You need Claude Code with plugin marketplace support, an installed `agy`, Bash and git. macOS, Linux and WSL are supported. Authentication is an OAuth token in the system keyring after one interactive `agy` run, or the `ANTIGRAVITY_API_KEY` variable. The `--model` flag works with `agy` 1.2.0 and newer. `/agy:setup` can install `agy` with the official script that is downloaded and run through `curl`; read it before confirming. During review your `git diff` is sent to an external Google service.
How to disable. Run `/plugin uninstall agy@antigravity-cc` and reload plugins. Antigravity CLI itself and its token are removed separately.
FAQ
How do I install the agy plugin in Claude Code?
Run `/plugin marketplace add simplybychris/antigravity-plugin-cc`, `/plugin install agy@antigravity-cc` and `/reload-plugins` in order. Then `/agy:setup` checks `agy` and sign-in.
Which commands exist?
Seven: `/agy:setup`, `/agy:ask`, `/agy:delegate`, `/agy:research`, `/agy:image`, `/agy:review` and `/agy:help`. Help lists the available model aliases.
How do I pick a model?
Add `--model <alias>` to `ask`, `delegate` or `research`. `/agy:help` prints the aliases your `agy` knows.
How do I sign in to Antigravity?
Run `agy` once in a terminal and complete OAuth, or export `ANTIGRAVITY_API_KEY` in your shell.
How do I send a long task to the background?
Add the `--background` flag to `/agy:delegate` or `/agy:research`. The task goes to the `agy:runner` subagent while you keep working.
Discussion
No questions or reviews yet.
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README in short
The plugin is deliberately thin: slash commands and the `agy:runner` subagent call `agy` through a small Bash script. Installation goes through the Claude Code marketplace.