How to install Runtime in Codex
To install Runtime in Codex, run "codex mcp add runtime -- npx -y @reactive-skills/runtime" 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 runtime -- npx -y @reactive-skills/runtime - 2
Check it
Inside Codex, type /mcp to see the server and its tools.
MCP servers run with your permissions. If Runtime needs an API key, add it under env in the config. Check its README.
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Questions
Does Runtime work in Codex?
Yes. Codex supports mcp servers in the codex cli and ide extension, and Runtime installs with the steps above.
Runtime 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 Runtime safe?
It scores 76 of 100. Review the code before you install it, and only give it the access it needs. Grades and details.
