How to install Junior Hex in Codex

To install Junior Hex in Codex, run "codex mcp add junior-hex -- npx -y @sentry/junior-hex" 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 junior-hex -- npx -y @sentry/junior-hex

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

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Does Junior Hex work in Codex?

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

Junior Hex 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 Junior Hex safe?

It scores 83 of 100. Review the code before you install it, and only give it the access it needs. Grades and details.