CBX063: The agent cannot take a shared harness
This page says what CBX063 means and how you fix it.
What happened
Section titled “What happened”A shared harness goes into the agent’s user-level configuration. Only Claude Code and Codex have one that Casebox knows.
What to do
Section titled “What to do”Use claude-code or codex as the evaluation’s agent, or move the shared harness files into the repositories.