**Bug Description** the agent constantlyt uses and reverts to ": " format dispite being told not to. **Environment Info** - Platform: darwin - Terminal: Apple_Terminal - Version: 2.1.228 - Feedback ID: 5ed74e63-2887-49e6-9889-8efd16452cd9 **Errors** ```json [] ```

[Bug] Agent ignores instructions and repeatedly uses ":<line_no>" format in edits

Status Closed — not planned

Reported on v2.1.228

Maintainer reply None cached

Activity 1 comment · opened Aug 12, 2026 · closed Sep 10, 2026

Bug Description
the agent constantlyt uses and reverts to ":<line_no>" format dispite being told not to.

Environment Info

Errors

[]