Invoking Antigravity

Run Google's Antigravity CLI (agy) headless, then call agy -p "<task>" as an orchestrated sub-agent on Google's harness (Gemini 3.5 Flash).

Install, authenticate once, orchestrate. For the why behind any step — the 30 s timeout, the keyring fallback, the token format, network hosts, troubleshooting — read references/auth-internals.md.

When to use

• Orchestrating agy as a sub-agent: shell out, capture stdout, fold back.
• Running Antigravity agents from a script, CI, or sandboxed container.
• Wanting a second opinion from Google's harness alongside Claude.

For interactive local use, skip this — run agy directly and it opens a browser.

1. Install