How to use Gemini Command Line Interface (CLI)

Nov. 2, 2025 /Mpelembe Media/ —  The Gemini Command Line Interface (CLI) is an open-source AI agent that allows you to access Gemini directly from your terminal. It uses a “reason and act” (ReAct) loop with built-in tools and local or remote Model Context Protocol (MCP) servers to handle complex tasks like fixing bugs, creating new features, and improving test coverage. Beyond coding, it’s a versatile tool for content generation, problem-solving, research, and task management.

Here’s how you can get started and use Gemini CLI:

1. Getting Started and Setup:

• Cloud Shell: The Gemini CLI is available without additional setup in Cloud Shell.
• Other Environments: For other environments, you’ll need to refer to the Gemini CLI documentation for specific setup instructions.
• Activation: If you primarily work with web-based tools that use Gemini Code Assist or the command line, you can activate your Gemini Code Assist license (which includes Gemini CLI access) by:
  1. Selecting or creating a Google Cloud project.
  2. Enabling the Gemini for Google Cloud API in your selected project’s dashboard.
  3. Signing in to your terminal with the same Google Account linked to your premium subscription.

2. Using Gemini CLI Features:

• Agent Mode: Gemini Code Assist agent mode in VS Code is powered by Gemini CLI, offering a subset of its functionality directly within your IDE’s chat.
  • To switch to agent mode in VS Code, open the Gemini Code Assist chat and click the “Agent” toggle.
  • In IntelliJ, select the “Agent” tab in the Gemini tool window.
  • In agent mode, you can ask Gemini to complete high-level goals and complex tasks.
  • You can also configure tools for agent mode, including built-in tools and MCP servers.
• Commands in Agent Mode (VS Code):
  • /tools: Displays a list of available tools in your agent mode session.
  • /mcp: Lists configured Model Context Protocol (MCP) servers, their connection status, server details, and available tools.
  • You can also use built-in tools like grep, terminal, file read, or file write in “Yolo mode”.
• Context Files: You can create context files (e.g., GEMINI.md or AGENT.md) in your project to provide the agent with rules, style guide information, or other context to improve its responses.
• API Key (Optional): If you exhaust your daily quota for Gemini Code Assist agent mode, you can continue using the service by providing a Gemini API key or a Vertex AI API key in your IDE’s settings.json file.

3. Quotas:

Gemini CLI usage is subject to quotas, which are shared with Gemini Code Assist agent mode. The specific quotas depend on your plan:

• Standard: 60 requests per user per minute and 1000 requests per user per day.
• Premium (Monthly/Yearly): 120 requests per user per minute and 1500 requests per user per day.
• Enterprise: 120 requests per user per minute and 2000 requests per user per day.

For more detailed information, you can refer to the official Gemini CLI documentation.