/tui fullscreen
Flicker-free fullscreen mode for Claude Code (v2.1.110+). `/tui fullscreen` switches to stable alt-screen rendering with mouse support, stable memory, and in-app scrolling, without the visual flashes of classic terminal mode. Also activatable via `CLAUDE_CODE_NO_FLICKER=1` (legacy variable). Significantly improves comfort on long sessions.
Strengths
- Stable interface, no more flickering on each response during long sessions
- Mouse support, click in the Claude Code interface without keyboard shortcuts only
- Integrated scrolling, scroll back through session history without leaving the interface
Limitations
- Incompatible with some older terminals, verify alt-screen compatibility before enabling
Best for
- Long sessions where constant interface flickering becomes tiring
- Developers who prefer using the mouse to navigate through Claude history