[Bug]:

[tomjn]

Before submitting

• I searched existing issues and did not find a duplicate.
• I included enough detail to reproduce or investigate the problem.

Area

apps/desktop

Steps to reproduce

When a provider goes away in the middle of a user input tool call, it's not possible to exit the UI and the session gets stuck:

• Closing the app and reopening it does not fix the problem
• Alpha or Nightly does not fix the problem
• Switching model does not fix the problem
• switching to a different conversation then back does not fix the problem
• cmd+R to reload did not help.

Expected behavior

When the provider goes away I should be able to dismiss the user input tool UI, or there should be an error. In claude code I can press escape to dismiss it.

Actual behavior

The conversation is trapped in a tiny sliver of the window while most of it is taken up by a series of questions that can never be submitted.

Impact

Blocks work completely

Version or commit

0.0.29-nightly.20260716.823 (bde0a4c)

Environment

MacOS 26

Logs or stack traces

I noticed this in the settings diagnostic page

shell.resolveCommandPathForPlatform	
CommandResolutionError: 
    at file:///Applications/T3%20Code%20(Nightly).app/Contents/Resources/app.asar/apps/server/dist/bin.mjs:15606:16
    at shell.resolveCommandPathForPlatform (Nightly)
    at shell.resolveCommandPathForPlatform (definition) (Nightly)
    at shell.resolveCommandPath (Nightly)
    at shell.resolveCommandPath (definition) (Nightly)
    at shell.isCommandAvailable (Nightly)
    at shell.isCommandAvailable (definition) (Nightly)
    at externalLauncher.resolveAvailableCommand (Nightly)
    at externalLauncher.resolveAvailableCommand (definition) (Nightly)
    at externalLauncher.buildAvailableEditors (Nightly)
    at externalLauncher.buildAvailableEditors (definition) (Nightly)

Also a trace ID: 2fcb048257abf89f1ffbbda081d2617c

Screenshots, recordings, or supporting files

Screenshot 2026-07-16 at 21.23.22.png

Workaround

None that I could find involve T3 Code