Feature Request: Show Available Prompts/Commands on Typing '/'

[AungMyoKyaw]

Describe the feature or problem you'd like to solve

No response

Proposed solution

When a user types a forward slash (/) in the interactive session input field of the Copilot CLI, a list of all available slash commands should appear, ideally with a brief description for each.

This behavior would be similar to how other command-line agent tools (like the Claude Code CLI) or chat applications handle command discoverability, making the tool feel more intuitive and powerful.

Example prompts or workflows

No response

Additional context

No response

[plusplusoneplusplus]

+1