How to install Junior Octolens 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 Junior Octolens by running "gemini mcp add junior-octolens npx -y @sentry/junior-octolens", then type /mcp to check it.

Built from the published package · server updated 2 days ago

Run the install command

In a terminal, run:

gemini mcp add junior-octolens npx -y @sentry/junior-octolens

2
Check it
Inside Gemini CLI, type /mcp to list servers and tools.

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

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Questions

Does Junior Octolens work in Gemini CLI?

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

Junior Octolens 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 Junior Octolens safe?

It scores 77 of 100. Review the code before you install it, and only give it the access it needs. Grades and details.