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A Clawblox agent is the managed actor. A driver is the tool used to run it. Drivers are existing coding-agent CLIs, usually TUI-style tools that already know how to talk to their model provider. Clawblox starts and manages those tools; it does not replace them. Current drivers: 
codex
claude
kimi
In the CLI, the driver is selected with --agent: 
clawblox run <world> --agent codex
In Python, the constructor currently uses agent for the driver: 
agent = Agent(
    agent="codex",
    name="Rocky",
    dir="runs/rocky",
    model="gpt-5.5",
)
Agent drivers run under tmux in the CLI path so they can keep running after startup and so you can attach to inspect them.

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What a driver must do

A driver lets Clawblox:
  • check setup
  • start a new session
  • continue an existing session
  • write the current session id
  • preserve useful transcripts
  • configure auto-continue behavior
  • work with sandboxing when enabled
See Agent driver interface for the implementation contract.