codex - 💡(How to fix) Fix Pet display flickers in Windows Terminal + WSL2

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What happened?

When running Codex CLI inside Windows Terminal + WSL2, enabling the pet display causes the area where the pet is rendered to flicker.

The flicker appears localized to the pet's position rather than the whole terminal. It is visually distracting while using the CLI.

Environment

  • Terminal: Windows Terminal
  • Runtime: WSL2
  • OS inside WSL: Linux 6.6.114.1-microsoft-standard-WSL2
  • Codex CLI: codex-cli 0.135.0
  • GitHub CLI used to file this issue: gh 2.91.0

Steps to reproduce

  1. Open Windows Terminal.
  2. Start a WSL2 shell.
  3. Run Codex CLI.
  4. Enable the pet display.
  5. Observe the area where the pet is displayed.

Expected behavior

The pet should render without flickering.

Actual behavior

The pet's display area flickers while the pet display is enabled.

Notes

I have not confirmed whether this also happens in other terminal emulators or outside WSL2.

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FAQ

Expected behavior

The pet should render without flickering.

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codex - 💡(How to fix) Fix Pet display flickers in Windows Terminal + WSL2