Paired iPhone Remote: optionally follow the active desktop Codex task for Voice

Summary

Paired iPhone Remote is useful for steering work running in Codex Desktop, especially when the phone is the more comfortable voice interface. Today, however, a user must manually find the matching Remote task on the phone whenever the active desktop task changes.

Please add an optional Follow active desktop task mode for paired iPhone Remote.

Current behavior

A desktop Codex task can be accessed from the iPhone's Remote tab, but the phone does not automatically follow the task currently selected on the desktop. This adds friction to a voice-first workflow: switching projects or tasks on desktop requires manually navigating to the same task on the phone before speaking.

Proposed behavior

When enabled for a paired iPhone:

• The phone follows the currently selected eligible desktop Codex task.
• Voice input from the phone is routed to that task.
• The task's project context, current status, and pending approvals are retained.
• Switching tasks on desktop updates the Remote target visibly, rather than silently sending input elsewhere.
• The desktop remains the execution host. The phone does not receive unrestricted filesystem or desktop-control access.

Why this matters

This would make Voice a practical bridge between desktop execution and mobile conversation. A user could move among desktop projects, then speak naturally through the phone without repeatedly locating the same task by hand.

The request is not general chat synchronization. It is task-aware continuity between a paired iPhone voice interface and the active desktop Codex task.

Safeguards

• Opt-in per paired device.
• Show the currently followed task before routing voice input.
• Preserve existing permission and approval boundaries.
• If no eligible desktop task is active, require the user to choose one rather than guessing.

Related context

The current product supports paired iOS Remote access to supported desktop Codex tasks, while standalone Work/Codex Voice is desktop-only. Existing feedback requests similar task-aware voice continuity on other device combinations.

No files or tests are named. Start by tracing the existing paired iOS Remote flow and how the active desktop Codex task is selected; verify opt-in following, visible target changes, voice routing, approval boundaries, and no-task behavior against the safeguards in this issue.