Elicitation: Allow Enter key to submit forms, not just Ctrl+S

[m-nash]

Problem

When an MCP server sends an elicitation/create request with a multi-property form (e.g., an enum selector + a text input field) OR just an enum selector, the Copilot CLI requires Ctrl+S to submit the form. This is unintuitive for users accustomed to pressing Enter to confirm a selection.

The v0.0.422 changelog added "Pressing Enter in required enum field now selects the highlighted option" which doesn't seem to work

Use Case

My MCP server presents a form like:

{
  "message": "PR #28 has a new comment. What would you like to do?",
  "requestedSchema": {
    "properties": {
      "choice": {
        "type": "string",
        "oneOf": [
          { "const": "address", "title": "Address this comment" },
          { "const": "explain", "title": "Explain and suggest" },
          { "const": "handle_myself", "title": "I'll handle it myself" }
        ]
      }
    }
  }
}

This renders as a list of choices. The user should be able to:

1. Select a choice and press Enter to submit (most common path)

Currently, they must use Ctrl+S which is not discoverable and breaks the flow.

Feature Request

One or more of the following:

1. Allow Enter to submit when the user has made a selection in an enum field (even in multi-property forms)
2. Add a configurable keybinding for form submission (e.g., elicitation.submitKey in settings.json)

Environment

• Copilot CLI v0.0.422
• Windows, PowerShell
• Using MCP elicitation from a custom MCP server (C# SDK v1.0.0)

[EvanBoyle]

This is now fixed. Should go out in the next release.