opencode-google-search

OpenCode plugin for Google Search via Antigravity Manager.

Prerequisites

• Antigravity Manager running locally at http://127.0.0.1:8045
• The manager must support gemini-*-online model variants with built-in Google Search Grounding

Installation

Add to your opencode.json:

{
  "plugin": [
    "opencode-google-search"
  ]
}

Then install dependencies:

cd ~/.config/opencode && bun install

Usage

Once installed, any model can call the google_search tool:

User: Search for the latest AI news
Assistant: [calls google_search(query="latest AI news")]

The tool returns search results with source citations embedded in the response.

Configuration

Configure via environment variables:

| Variable | Default | Description | |----------|---------|-------------| | OPENCODE_SEARCH_BASE_URL | http://127.0.0.1:8045 | Antigravity Manager URL | | OPENCODE_SEARCH_MODEL | gemini-3-flash-online | Model for search | | OPENCODE_SEARCH_MAX_TOKENS | 8192 | Max output tokens | | OPENCODE_SEARCH_TIMEOUT_MS | 60000 | Request timeout (ms) |

How It Works

This plugin wraps Antigravity Manager's -online model variants, which have built-in Google Search Grounding. When called:

1. The tool sends your query to the configured model
2. The model performs a Google Search and synthesizes results
3. Returns formatted results with citations

Security Note

Web search results may contain untrusted content. The model treats retrieved content as potentially unsafe.

License

MIT