Consult multiple top-tier LLMs simultaneously with automated peer review and synthesis. Leverage the "Wisdom of the Crowd" to get high-confidence answers for complex architectural and debugging tasks.

Inspired by Andrej Karpathy's llm-council.

• Gemini CLI installed.
• An OpenRouter API Key.

1. Link the extension:

   gemini extensions link .

2. Configure API Key: Use the Gemini CLI to set your OpenRouter API key securely. (Note: This requires Gemini CLI v0.24.0-preview or later)

   gemini extensions config gemini-llm-council "OpenRouter API Key"

   Headless / CI Environments: If the system keychain is unavailable, you can set the API key directly in your shell.

   [!CAUTION] Security Warning: Using the GEMINI_CLI_ prefix whitelists the variable from redaction.

   1. Leakage: Secrets will appear in plaintext in logs (~/.gemini/logs/) and error traces.
   2. Lack of Isolation: These variables are global and visible to all installed Gemini extensions.
   3. Display: These secrets may be displayed in plaintext during verbose output or screen sharing.

   Only use this for ephemeral, headless environments (like CI/CD). For local development, always prefer the keychain-backed method.

   export GEMINI_CLI_OPENROUTER_API_KEY=sk-or-...

3. Build the extension:

   npm install
   npm run build

4. Configure Council Members: Run the setup command in your project workspace.

   /council:setup

   Note: For the best setup experience (interactive selection), this extension supports the ask_user_question tool. This tool is inspired by Claude Code's AskUserQuestion and is available in the develop branch of this Gemini CLI fork. If not available, setup will fall back to a text-based workflow.

Configurations are project-specific and stored in .gemini/llm-council.json within your project root. This allows you to have a "Fast & Cheap" council for one project and a "God Mode" council for another.

/council:ask "What is the best way to implement a singleton in TypeScript?"

The Council can review files or research topics if you ask the Chairman to do so.

/council:ask "Review src/index.ts and suggest improvements."

(The Chairman will read the file first, then pass it to the Council).

• Drafting Phase: Selected models provide independent answers.
• Peer Review Phase: Models critique each other's anonymized answers.
• Synthesis: The Gemini CLI Agent (Chairman) synthesizes the drafts and reviews into a final consensus answer, prioritizing catches made during peer review.

This project was inspired by Andrej Karpathy's LLM council project, as shared in his Twitter (X) post.

MIT