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Replaying each embedded newline as its own CR made the shell's line editor run a full prompt cycle per line -- preexec, the user's precmd chain (git-status prompts, conda), a syntax-highlight pass over the whole buffer, plus our own OSC 133 D follow-up work. A pasted block crawled down the screen line by line, as if the command were being retyped: instant to paste (the local editor never touches the PTY), then visibly slow to run. When the shell has bracketed paste enabled, send the buffer as one paste followed by a single CR. zle keeps the embedded newlines in its buffer, so backslash / open-quote continuation and heredocs still parse as one unit -- the PS2 assembly the per-line replay existed for now happens inside the buffer instead of on the wire -- and the block costs one prompt cycle whatever its line count. Shells without the mode keep the per-line fallback. This is the shape core::agent_prompt::submit_bytes has always used for agent prompts; the shell path was the odd one out. Two fixes ride along, both from the same helper: - ESC is stripped on the submit path (it already was on the clipboard paste path), so clipboard text can't smuggle its own ESC[201~ end marker or hand zle an editor command. - A CRLF clipboard no longer turns \r\n into \r\r -- a stray blank Enter submitted mid-command. An empty buffer skips the markers: zsh's bracketed-paste-magic, which oh-my-zsh turns on, errors on a paste with nothing between them.
tty7
A terminal workbench: shells, sessions, SSH, coding agents.
Pure Rust · GPU rendering on Zed's gpui · VT core from Alacritty
English · 简体中文
Why
- Fast — ~2× the throughput of Alacritty, Ghostty, or Kitty (benchmarks)
- Sessions persist — quit or reboot; your shells keep running, no tmux
- Editor-grade input — completion, syntax highlighting, history search built in; zero config for zsh, bash, fish, PowerShell
- Agent-aware — recognizes Claude Code & co. in a pane: status, notifications, session resume
Install
Native builds for each platform on Releases:
| macOS | …-macos-arm64.dmg · …-x86_64.dmg |
drag into Applications |
| Windows | …-setup.exe · portable ….zip |
|
| Linux | …-x86_64.AppImage |
chmod +x and run — x11/wayland libs bundled |
What's inside
| Input | ghost suggestions from history · explained tab completion · syntax highlighting · multi-line editing · click places the caret · ⌃ R fuzzy history |
| Window | tabs & splits · ⌘ P palette · ⌘ F scrollback search · eight themes · IME |
| Coding agents | per-pane agent detection (~17 CLIs): status dot, notifications, branch + diff, resume after reboot, tray icon that signals "needs your input" |
| SSH | native russh stack: profiles with keychain secrets, SFTP panel, port forwarding, jump hosts |
Details for every row: docs/features.md. Keybindings: ⌘ , opens Settings — browse and remap everything, tmux preset included (full list).
Benchmarks
Same machine, same day, same 155×40 grid — Apple M1 Pro, macOS 26.3.1, five-run averages (2026-07-04):
| tty7 | Alacritty | Ghostty | Kitty | |
|---|---|---|---|---|
Plaintext IO — 11 MB cat (lower = better) |
95 ms | 239 ms | 179 ms | 185 ms |
| DOOM-fire frame rate (higher = better) | 888 fps | 485 fps | 552 fps | 617 fps |
| Cold-launch memory | 116 MB¹ | 105 MB | 128 MB | 130 MB |
¹ GUI 105 MB + the persistent daemon 11 MB.
Methodology and one-command reproduction: scripts/bench/.
Built on gpui and alacritty_terminal · Apache-2.0 · Discord · Changelog