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How to install SandBase Harness in Codex

To install SandBase Harness in Codex, run "codex mcp add sandbase-harness --env MANAGED_AGENTS_URL=YOUR_MANAGED_AGENTS_URL -- docker run -i --rm -e MANAGED_AGENTS_URL ghcr.io/sandbaseai/sandbase-harness-mcp:0.3.8" in your terminal, then type /mcp in Codex to check it.

Built from the published package · server updated 4 days ago

  1. 1

    Run the install command

    In a terminal, run:

    codex mcp add sandbase-harness --env MANAGED_AGENTS_URL=YOUR_MANAGED_AGENTS_URL -- docker run -i --rm -e MANAGED_AGENTS_URL ghcr.io/sandbaseai/sandbase-harness-mcp:0.3.8
  2. 2

    Check it

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

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

Install SandBase Harness in another app

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Questions

Does SandBase Harness work in Codex?

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

SandBase Harness 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 SandBase Harness safe?

It scores 86 of 100. Review the code before you install it, and only give it the access it needs. Grades and details.