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How to install Agent Harness Generator in Gemini CLI

Gemini CLI was replaced by Antigravity CLI in June 2026. On an enterprise licence or paid API key you can still install Agent Harness Generator by running "gemini mcp add agent-harness-generator npx -y @ruvnet/agent-harness-generator", then type /mcp to check it.

Built from the published package · server updated 2 days ago

  1. 1

    Run the install command

    In a terminal, run:

    gemini mcp add agent-harness-generator npx -y @ruvnet/agent-harness-generator
  2. 2

    Check it

    Inside Gemini CLI, type /mcp to list servers and tools.

MCP servers run with your permissions. If Agent Harness Generator needs an API key, add it under env in the config. Check its README.

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Questions

Does Agent Harness Generator work in Gemini CLI?

Yes. Gemini CLI supports local and remote mcp servers, extensions (legacy), and Agent Harness Generator installs with the steps above.

Agent Harness Generator does not show up in Gemini CLI. What now?

Restart Gemini CLI fully, check the JSON is valid, and make sure Node.js (for npx) is installed. See common MCP errors and fixes.

Is Agent Harness Generator safe?

It scores 86 of 100. Review the code before you install it, and only give it the access it needs. Grades and details.