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The tail command previously used raw ANSI escape codes (\033[2J\033[H) to clear and redraw the screen on each refresh. This caused unbounded scrollback growth in most terminal emulators, making it unusable for long monitoring. Now uses a Bubble Tea program with tea.WithAltScreen(), which renders in the alternate screen buffer (like top/htop/watch). This completely eliminates scrollback pollution, adds proper terminal resize handling, and provides clean exit with q/esc/ctrl+c. Also adds terminal-height-aware truncation so the view fits the screen, and adapts title width to terminal width. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
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Summary
ty tailfrom raw ANSI escape codes to a Bubble Tea program withtea.WithAltScreen()top/htop/watch)q/esc/ctrl+cinstead of onlyctrl+cWhat changed
The old implementation used
\033[2J\033[H(clear screen + cursor home) on each 2s refresh, which pushed content into the terminal's scrollback buffer on every cycle. After a few minutes, the scrollback would be enormous.The new implementation uses Bubble Tea's alternate screen mode, which is the standard approach used by
top,htop,watch, and other terminal monitoring tools. Content is rendered in a separate buffer that doesn't affect scrollback at all. On exit, the terminal returns to its previous state cleanly.Test plan
tailModel(Update + View): key handling, window resize, tick scheduling, task rendering, height truncation, done task filteringty tailand verify no scrollback growth🤖 Generated with Claude Code