Agent output randomly jitters #4052

Open
opened 2026-02-16 17:42:26 -05:00 by yindo · 4 comments
Owner

Originally created by @mustafamohsen on GitHub (Jan 1, 2026).

Originally assigned to: @kommander on GitHub.

Description

At random points, the output jitters as in the attached gif

Edit: Filled missing info

OpenCode version

1.0.218

Steps to reproduce

Unfortunately, I couldn't recognize a consistent pattern that reproduces this issue. It just occurs at seemingly random times

Screenshot and/or share link

Image

Operating System

macOS Sequoia

Terminal

Ghostty 1.2.3

Originally created by @mustafamohsen on GitHub (Jan 1, 2026). Originally assigned to: @kommander on GitHub. ### Description At random points, the output jitters as in the attached gif Edit: Filled missing info ### OpenCode version 1.0.218 ### Steps to reproduce Unfortunately, I couldn't recognize a consistent pattern that reproduces this issue. It just occurs at seemingly random times ### Screenshot and/or share link ![Image](https://github.com/user-attachments/assets/0ffc8865-c05c-495d-93e4-5dcf4c7f9a95) ### Operating System macOS Sequoia ### Terminal Ghostty 1.2.3
yindo added the opentuibug labels 2026-02-16 17:42:26 -05:00
Author
Owner

@github-actions[bot] commented on GitHub (Jan 1, 2026):

This issue might be a duplicate of existing issues. Please check:

  • #5283: Graphical glitches - Same symptoms with old text getting stuck (macOS, Ghostty)
  • #6210: Terminal output shifts during scrolling when using emojis (Ghostty)
  • #4990: Output from agent frequently hidden (macOS terminal rendering)

Feel free to ignore if none of these address your specific case.

@github-actions[bot] commented on GitHub (Jan 1, 2026): This issue might be a duplicate of existing issues. Please check: - #5283: Graphical glitches - Same symptoms with old text getting stuck (macOS, Ghostty) - #6210: Terminal output shifts during scrolling when using emojis (Ghostty) - #4990: Output from agent frequently hidden (macOS terminal rendering) Feel free to ignore if none of these address your specific case.
Author
Owner

@kommander commented on GitHub (Jan 1, 2026):

Are you using any plugins or a fork? What language are you using? Are there any special Unicode characters before the jitter starts? Can you share a session that shows this behavior?

@kommander commented on GitHub (Jan 1, 2026): Are you using any plugins or a fork? What language are you using? Are there any special Unicode characters before the jitter starts? Can you share a session that shows this behavior?
Author
Owner

@mustafamohsen commented on GitHub (Jan 1, 2026):

Are you using any plugins or a fork? What language are you using? Are there any special Unicode characters before the jitter starts? Can you share a session that shows this behavior?

  • The only plugin is numman-ali/opencode-openai-codex-auth. No forks
  • Spoken language? English. Programming language? TS
  • None
  • I don't mind. I'll wait until it shows up again and I'll share it. Just let me know how to share it privately
@mustafamohsen commented on GitHub (Jan 1, 2026): > Are you using any plugins or a fork? What language are you using? Are there any special Unicode characters before the jitter starts? Can you share a session that shows this behavior? - The only plugin is numman-ali/opencode-openai-codex-auth. No forks - Spoken language? English. Programming language? TS - None - I don't mind. I'll wait until it shows up again and I'll share it. Just let me know how to share it privately
Author
Owner

@kommander commented on GitHub (Jan 2, 2026):

You can send it to my GitHub email address if you can capture it.

@kommander commented on GitHub (Jan 2, 2026): You can send it to my GitHub email address if you can capture it.
Sign in to join this conversation.
1 Participants
Notifications
Due Date
No due date set.
Dependencies

No dependencies set.

Reference: anomalyco/opencode#4052