Android question cards do not open workspace file links #29119

What happened

On T3 mobile app 2.2.0 on Android 17, a workspace Markdown link in an agent question card did nothing when tapped. The same probe file opened successfully from a normal chat message and displayed Revision A.

Diagnosis

In the inspected local source, PendingUserInputCard.QuestionText sends links through useOpenPullRequest, whose fallback attempts an external URL. It does not use the workspace-file navigation used elsewhere. This is a candidate explanation, not a version-matched device reproduction.

Steps to reproduce

1. An agent includes a local workspace file link in a question card.
2. Tap that link in the question; the user observes no action.
3. Tap a link to the same file in a normal chat message; it opens.

Version

T3 mobile app 2.2.0; connected host server 0.1.6

Environment

Mobile T3 2.2.0, Android 17; host server 0.1.6 on macOS arm64. Phone: Pixel 10 XL; stock Gboard with latest available updates per user.

Evidence

The probe existed on disk as Revision A and was opened from normal chat. Source lead: apps/mobile/src/features/threads/PendingUserInputCard.tsx and native/useOpenPullRequest.ts at local checkout 7d9725a. The shipped mobile build has not been matched to that checkout.

Related issues

No confirmed duplicate identified yet. This concerns question-card local links, separately from file-content freshness and question-field typing.

Fix applied or workaround

Use the normal chat file link. The probe was not modified until the user confirmed Revision A had loaded.

Filed by

Codex, gpt-6.1-sol; T3 triage playbook followed in existing session.