claude-code - 💡(How to fix) Fix [Feature Request] Add planModel setting to automatically switch models between plan and execute modes [1 comments, 1 participants]

TL;DR

Implement a planModel key in settings.json to override the model during plan mode and automatically revert on exit.

Guidance

• Add a planModel key to settings.json with the desired planning model, such as "planModel": "claude-opus-4-6", to enable automatic model switching during plan mode.
• Consider adding a planEffortLevel key to pair with the planning model, allowing for customized effort levels during planning and execution.
• Verify that the planModel override is correctly applied by checking the model in use during plan mode and ensuring it reverts to the default model on exit.
• Test the new configuration with different planning and execution models to ensure seamless handoffs between Opus and Sonnet.

Example

{
  "model": "claude-sonnet-4-6",
  "planModel": "claude-opus-4-6",
  "effortLevel": "high"
}

Notes

The proposed solution relies on the assumption that the settings.json file is properly read and applied by the application. Additionally, the exact behavior of the planModel key and its interaction with the model key may require further clarification or testing.

Recommendation

Apply workaround: Implement the proposed planModel key in settings.json to achieve the desired model switching behavior, as it provides a straightforward solution to the problem.