Make command folding and output truncation in Codex CLI TUI configurable or disable-able

[Konjac-XZ]

Problem

Currently, the Codex CLI TUI forcibly folds multi-line commands and command output, showing only a few lines and replacing the rest with an ellipsis line (e.g., … +X lines). This makes it very difficult to review, debug, or copy full scripts or command outputs generated by the model, especially for heredoc-heavy workflows (e.g., python3 - <<'PY' ...).

There is no user-exposed setting in the CLI or config file to disable or configure this folding/truncation. The behavior is hard-coded in the TUI. Many users would prefer to see the full command/output or at least have the ability to customize the folding threshold.

References

• Folding/truncation logic: codex-rs/tui/src/exec_cell/render.rs
• This is not a terminal feature; it's implemented by Codex CLI itself.

Requested Solution

• Add a user-facing configuration option (CLI flag or config.toml) to:
  • Disable command folding/output truncation entirely (always show full content)
  • Or, allow customizing the number of lines shown before folding (both for command lines and output)
• Optionally, provide a per-session or per-command override (e.g., a hotkey to expand/collapse in the TUI)

Workarounds (not sufficient)

• Using headless/non-interactive mode avoids the TUI, but disables the interactive session.
• Building from source to raise caps is not user-friendly.

Impact

• Users running or reviewing long scripts (e.g., model-generated bash/python heredocs) can see the full command, copy/edit/debug as needed.
• Makes Codex CLI more transparent and user-friendly for advanced workflows.

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Filed by @Konjac-XZ. If more details are needed, please let me know.

[kzhrv]

I would also like to see this enhancement. I would find it infinitely useful without any deeper layers adjustments.