antigravity-cli

The saved excerpt is a snapshot from review. The external source remains the complete and most current version.

---
name: antigravity-cli
description: "Operate the Antigravity CLI (agy): plugins, auth, sandbox."
version: 0.2.0
author: Tony Simons (asimons81), Hermes Agent
license: MIT
platforms: [linux, macos, windows]
metadata:
  hermes:
    tags: [Coding-Agent, Antigravity, CLI, Auth, Plugins, Sandbox]
    related_skills: [grok, codex, claude-code, hermes-agent]
---

# Antigravity CLI (`agy`)

Operator guide for the Antigravity CLI, invoked as `agy`. Run all `agy`
commands through the Hermes `terminal` tool; inspect its config and logs with
`read_file`. This skill is reference + procedure — it does not wrap a network
API, so there is nothing to authenticate from Hermes itself.

## When to Use

- Installing, updating, or smoke-testing the `agy` binary
- Driving non-interactive `agy --print` / `agy -p` one-shots
- Debugging Antigravity auth, sandbox, permissions, or plugin state
- Reading Antigravity settings, keybindings, conversations, or logs

## Mental model

Antigravity has two layers — keep them distinct or the guidance will be wrong:

1. **Shell wrapper commands** — `agy help`, `agy install`, `agy plugin`,
   `agy update`, `agy changelog`. Run these through the `terminal` tool.
2. **Interactive in-session slash commands** — `/config`, `/permissions`,
   `/skills`, `/agents`, etc. These only exist inside a running `agy` TUI
   session, not on the shell wrapper.

`agy help` shows the shell wrapper surface, NOT the in-session slash commands.

## Prerequisites

- The `agy` binary on PATH. Verify through the `terminal` tool:
  `command -v agy && agy --version`.
- No env vars or API keys required by this skill — Antigravity manages its own
  auth via the OS keyring / browser sign-in (see Authentication below).

## How to Run

Invoke every `agy` command through the `terminal` tool. Examples:

```
terminal(command="agy --version")
terminal(command="agy help")
terminal(command="agy plugin list")
terminal(command="agy --print 'Summarize the repo in 3 bullets'", workdir="/path/to/project")
```

For an interactive multi-turn TUI session, launch `agy` with `pty=true` (and
tmux for capture/monitoring), the same pattern the `codex` / `claude-code`
skills use. For one-shot smoke tests and scripted prompts, prefer
`agy --print` (non-interactive).

To inspect Antigravity's own files, use `read_file` on the paths under Core
paths below — do not `cat` them through the terminal.

## Delegation patterns

`agy` is a coding-agent backend in the same family as `codex` / `claude-code`,
so the same delegation shapes apply. Use these when handing real work (features,
fixes, reviews, second opinions) to Antigravity rather than just smoke-testing.

### One-shot (preferred for scripted prompts and second opinions)

```
terminal(command="agy -p 'Review this diff for bugs and security issues' --model 'Gemini 3.1 Pro (High)'", workdir="/path/to/repo", timeout=300)
```

`-p` is non-interactive: it runs the prompt and exits. Pick the engine with
`--model` (run `agy models` for the exact display strings, e.g.
`'Gemini 3.1 Pro (High)'`, `'Claude Opus 4.6 (Thinking)'`). Add extra context
roots with repeatable `--add-dir`.

### Long / bounded runs (tests, builds, multi-file changes)

Background it and get notified on completion, the same as the `codex` skill:

```
terminal(command="agy -p 'Implement the change described in TASK.md and run the tests' --dangerously-skip-permissions", workdir="/path/to/repo", background=true, notify_on_complete=true)
# then: process(action="poll"/"log"/"wait", session_id=<id>)
```

### Interactive multi-turn (PTY + tmux)

For a conversational session, launch `agy -i` (or bare `agy`) under `pty=true`
with tmux for `capture-pane` / `send-keys`, exactly the pattern documented in
the `codex` / `claude-code` skills. Resume later with `--continue` / `-c` or a
specific `--conversation <id>`.

### Parallel instances (batch sub-issue / worktree fan-out)

Create one git worktree per task and launch an independent `agy -p` in each
(background), then