[FEATURE] Feature Request: Live agent output in separate terminal

Preflight Checklist

• [x] I have searched existing requests and this feature hasn't been requested yet
• [x] This is a single feature request (not multiple features)

Problem Statement

When launching a background agent, optionally open a new terminal window showing the agent's progress in real-time. The main session stays the "master" for control, the secondary window is read-only for
monitoring. System : Windows

Proposed Solution

When a background agent is launched, automatically open a second terminal window in PowerShell that streams the agent's output in real-time (read-only). The main session remains the "master" for
control and interaction.

Key points:

• The live view is read-only — no user interaction with the agent, all control stays in the master session
• When the agent finishes, the secondary terminal shows the final result and can be closed
• Optional flag like --live or a setting in settings.json to enable/disable this behavior
• Works for both CLI (open new terminal window) and VS Code (open new terminal tab)

Use case: As a non-developer domain expert, I use background agents for isolated tasks while discussing architecture in the main session. Currently I have no visibility into what the agent is doing until it
finishes. A live view would let me catch problems early without losing control of the master session.

Alternative Solutions

_No response_

Priority

Critical - Blocking my work

Feature Category

CLI commands and flags

Use Case Example

_No response_

Additional Context

_No response_