Antigravity (antigravity extension)

Independent native Pi provider for Google Antigravity-compatible model access.

The extension folder is antigravity, and the provider registered inside Pi is antigravity.

Usage

# From this checkout
pi --extension ./packages/antigravity

# Or via nothing
pi --antigravity

Inside Pi:

/login antigravity
/model antigravity/gemini-3.5-flash
/antigravity.doctor

The extension uses a native streamSimple transport. It does not shell out to the official agy CLI.

NPM

npm install -g @raquezha/antigravity

Provider

• Provider id: antigravity
• Public model ids:
  • gemini-3.5-flash
  • gemini-3.1-pro
  • claude-sonnet-4-6
  • claude-opus-4-6
  • gpt-oss-120b
  • plus additional Gemini / Claude catalog entries exposed by the package
• Runtime routing examples:
  • gemini-3.5-flash -> routes internally by reasoning level (off/low/high) to Antigravity runtime IDs such as gemini-3.5-flash-extra-low, gemini-3.5-flash-low, or gemini-3-flash-agent
  • gemini-3.1-pro -> routes internally to gemini-3.1-pro-low or gemini-pro-agent
  • claude-sonnet-4-6 -> routes to claude-sonnet-4-6
  • claude-opus-4-6 -> routes to claude-opus-4-6-thinking
  • gpt-oss-120b -> routes to gpt-oss-120b-medium
• Migration note:
  • old public ids like gemini-3.5-flash-high, gemini-3.5-flash-low, gemini-3.1-pro-low, gemini-3.1-pro-high, claude-sonnet-4-6-thinking, and gpt-oss-120b-medium were replaced by cleaner public ids plus internal routing.
• Default endpoint: https://cloudcode-pa.googleapis.com (fallback: https://daily-cloudcode-pa.sandbox.googleapis.com)

Diagnostics

/antigravity.doctor prints sanitized routing information only. It must not print OAuth tokens, refresh tokens, authorization headers, prompts, or credential files.

Optional overrides

Prefer the ANTIGRAVITY_* names for environment alignment. The older NOAGY_* names remain accepted as backwards-compatible aliases.

• ANTIGRAVITY_BASE_URL — override the Cloud Code/Antigravity endpoint for experiments.
• ANTIGRAVITY_PROJECT_ID — fallback project id if project discovery does not return one.
• ANTIGRAVITY_CALLBACK_HOST — OAuth callback bind host, default 127.0.0.1.
• ANTIGRAVITY_USER_AGENT — override user agent for endpoint compatibility experiments.
• ANTIGRAVITY_RUNTIME_MODEL — force a runtime model id for endpoint experiments.
• ANTIGRAVITY_CLIENT_ID / ANTIGRAVITY_CLIENT_SECRET — advanced OAuth app overrides; normally not needed.