| name | omega-agy-cli |
| description | Use when the user wants Antigravity CLI (agy) for analysis, large files or codebases, sandbox execution, or brainstorming. Uses headless agy scripts (no MCP). Triggers on "use agy", "ask Antigravity", "analyze with agy", "brainstorm with Antigravity". |
| allowed-tools | Read, Grep, Bash |
Omega Antigravity CLI (headless)
This skill uses the Antigravity CLI (agy) in headless / print mode so Claude can run Antigravity from scripts—no MCP server required.
Context: On June 18, 2026 Google stopped serving Gemini CLI for consumer Google AI Pro/Ultra/free accounts and consolidated that experience into Antigravity CLI (agy). This skill targets agy. For paid Gemini API key / Code Assist Enterprise paths that still use gemini, see the sibling omega-gemini-cli repo.
Response times
Typical wall-clock (includes model startup):
- Simple Q&A: ~1–3 minutes
- Codebase or large-file review: ~5–15 minutes
Overview
Run via scripts/ask-agy.mjs:
node .claude/skills/omega-agy-cli/scripts/ask-agy.mjs "USER_PROMPT"
Options:
--model MODEL / -m MODEL — exact display name with effort, e.g. Gemini 3.7 Flash (High) (default).--sandbox / -s — sandbox / restricted terminal (skips auto-approve).--json — normalize to {"response":"..."} envelope.--add-dir DIR — add a workspace directory (repeatable).--print-timeout DUR — agy print-mode wait (e.g. 3m).--no-allow-tools — do not pass --dangerously-skip-permissions.
First-time setup
Run /omega-agy-setup or:
node .claude/skills/omega-agy-cli/scripts/verify-setup.mjs
Install agy: antigravity.google/docs/cli/install. Authenticate once with interactive agy.
When to use
- Large files / codebases, second opinion, sandbox runs, brainstorming.
- Consumer accounts that can no longer use Antigravity CLI after June 18, 2026.
Models (2026)
Effort suffix is mandatory for --model (bare Gemini 3.7 Flash is rejected):
| Display name | Use |
|---|
Gemini 3.7 Flash (High) | Default — agentic coding / audits |
Gemini 3.6 Flash (High) | Fallback if 3.7 capacity-constrained |
Gemini 3.5 Flash (High) | Older Flash fallback |
Gemini 3.1 Pro (High) | Hard reasoning |
See references/models-2026.md.
Windows headless note
Some Windows agy builds return empty stdout when the parent is non-TTY. Set AGY_CONPTY_RUN to a conpty-run.exe path, or run from an interactive console. Details: references/headless.md.
Slash commands
- /analyze, /sandbox, /omega-agy — run the headless script.
- /omega-agy-setup — verify Node + agy.
Auth
references/auth.md.
