Constant DEFAULT_CONFIG 

pub const DEFAULT_CONFIG: &str = "version: 1\nworktree_dir: .worktrees\nworktree_retention: 7d\n\nagent:\n  default_target: claude\n  targets:\n    claude:\n      model: opus\n      effort: high\n      cmd:\n        - claude\n        - --print\n        - --model\n        - \"{model}\"\n        - --effort\n        - \"{effort}\"\n        - \"{prompt}\"\n    codex:\n      model: gpt-5.6-sol\n      effort: high\n      cmd:\n        - codex\n        - exec\n        - --model\n        - \"{model}\"\n        - --config\n        - \'model_reasoning_effort=\"{effort}\"\'\n        - --sandbox\n        - workspace-write\n        - --ephemeral\n        - \"{prompt}\"\n    # OpenCode model names are provider-qualified (for example\n    # anthropic/claude-opus-4-8), so pick yours here or per ticket.\n    opencode:\n      cmd:\n        - opencode\n        - run\n        - --model\n        - \"{model}\"\n        - --variant\n        - \"{effort}\"\n        - \"{prompt}\"\n";