Summary

Mouse support is explicitly disabled in the prompt_toolkit Application:

cli.py:1755:

mouse_support=False,

This means users cannot:

• Click to position the cursor in the input area
• Select text with the mouse
• Scroll with the mouse wheel (within prompt_toolkit)

Suggested fix

1. Flip to mouse_support=True as the default
2. Add a tui.mouse_support config toggle as an escape hatch for terminals where mouse capture causes issues (tmux, screen, some SSH setups)

mouse_support=self.config.get("tui", {}).get("mouse_support", True),

Risk

Low. Some terminal multiplexers (tmux, screen) may behave oddly with mouse capture enabled. The config toggle provides an escape hatch. Most modern terminals handle this fine.

Impact

• Severity: High — basic expected interaction pattern
• Effort: Tiny — one boolean flip + optional config key

Ref

UX audit item #10.