Agent mode: Allow Copilot to run the npm task undefined

[Tyriar]

Clicking undefined brought me here:

The actual tool call:

[Tyriar]

Closed source repo so can't share that.

[meganrogge]

duplicate of https://github.com/microsoft/vscode-copilot/issues/18739

[meganrogge]

closing the one in the other repo instead

[meganrogge]

There's another issue tracking this