gmcTask
Start
Create a task worktree and start an agent.
gmc task start creates a worktree for a task and starts the selected agent.
Usage
gmc task start t-20260614-120000-a1b2Agent
gmc task start <task-id> --agent codex
gmc task start <task-id> --agent opencodeSupported agent commands include codex, grok, cursor-agent, and opencode.
Base and model
gmc task start <task-id> --base main --model gpt-5Notes
The built-in workflow starts each agent with its own approval settings;
nothing bypasses prompts or sandboxes unless your workflow.yaml sets an
explicit node command. The launched command is printed as command: so you
can verify the flags.
--model applies to the selected agent and carries to later nodes only while
they use the same agent; switching agents drops it.
Use a base branch when the task should not start from the current default.