Add Prompt Queue, Plan Mode Toggle

[PedramGlobiance]

Feature Requests

I would like to request two enhancements to GitHub Copilot CLI:

1. Prompt Queue

Add the ability to queue multiple prompts so they can be processed sequentially without waiting for each one to complete before submitting the next. This would improve workflow efficiency when working on tasks that require multiple operations.

2. Plan Mode Toggle

Introduce a plan mode that generates and displays an execution plan before actually making changes. This would allow users to:

• Review the proposed actions before they're executed
• Approve or reject the plan
• Understand the scope of changes before they happen

Similar to terraform plan or other IaC tools, this would provide better control and visibility.

Use Case

These features would significantly improve workflow efficiency and control when working with Copilot CLI on complex tasks that require multiple steps, or careful review

Additional Context

• Prompt queue would reduce idle time between operations
• Plan mode would increase confidence when making changes