[Windows desktop] “Add to chat” annotation cannot be removed from composer

Description

In the unified ChatGPT/Codex desktop app on Windows, selecting text from an assistant response and choosing Add to chat adds the selection to the composer as a response annotation/context chip.

That chip has no visible remove or delete control. Common removal actions do not work, so an accidentally added annotation remains attached to the draft until the entire desktop app is fully quit and restarted.

This still reproduces on the latest desktop build available on 2026-08-18.

Steps to reproduce

1. Open any conversation in the unified ChatGPT/Codex desktop app on Windows.
2. Select part of an assistant response.
3. Click Add to chat.
4. Confirm that the selected text appears in the composer as a response annotation/context chip.
5. Try to remove it with:
   • Backspace
   • Delete
   • Esc
   • left-clicking the chip
   • right-clicking the chip
6. Fully quit and restart the desktop app.

Expected behavior

Each selected-text annotation/context chip in the composer should have a clear remove control and/or support an intuitive keyboard removal action before the message is sent.

Actual behavior

There is no visible remove/delete control, and Backspace, Delete, Esc, left-click, and right-click do not remove the chip. Fully quitting and restarting the app is the only reliable way found to clear it.

Impact

Users cannot correct an accidental Add to chat action or remove stale selected-text context from an unsent message. This can cause unintended context to be submitted and forces an app restart, disrupting the current workflow.

Environment

• Application: Unified ChatGPT/Codex desktop app
• Operating system: Windows
• Desktop build: Latest build available on 2026-08-18
• Feature: Selected assistant-response text → Add to chat → response annotation/context chip

Start at the Windows desktop Add to chat flow and the composer’s response annotation/context chip handling, reproducing the issue with the listed keyboard and mouse actions. Done means an added annotation has a clear removal control or intuitive keyboard removal action, and the unsent draft can be corrected without restarting the app.