How to install Caveman Shrink in Codex

To install Caveman Shrink in Codex, run "codex mcp add caveman-shrink -- npx -y caveman-shrink" in your terminal, then type /mcp in Codex to check it.

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Run the install command

In a terminal, run:

codex mcp add caveman-shrink -- npx -y caveman-shrink

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Check it
Inside Codex, type /mcp to see the server and its tools.

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

Install Caveman Shrink in another app

Claude Code Claude Desktop Cursor VS Code Windsurf Gemini CLI Antigravity CLI ChatGPT

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Questions

Does Caveman Shrink work in Codex?

Yes. Codex supports mcp servers in the codex cli and ide extension, and Caveman Shrink installs with the steps above.

Caveman Shrink does not show up in Codex. What now?

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

Is Caveman Shrink safe?

It scores 94 of 100. Review the code before you install it, and only give it the access it needs. Grades and details.