AI Plugin Index
How to install External Subagent 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 External Subagent by running "gemini mcp add external-subagent npx -y external-subagent", then type /mcp to check it.
Built from the published package · server updated 3 days ago
- 1
Run the install command
In a terminal, run:
gemini mcp add external-subagent npx -y external-subagent - 2
Check it
Inside Gemini CLI, type /mcp to list servers and tools.
MCP servers run with your permissions. If External Subagent needs an API key, add it under env in the config. Check its README.
Install External Subagent in another app
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Questions
Does External Subagent work in Gemini CLI?
Yes. Gemini CLI supports local and remote mcp servers, extensions (legacy), and External Subagent installs with the steps above.
External Subagent 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 External Subagent safe?
It scores 80 of 100. Review the code before you install it, and only give it the access it needs. Grades and details.