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Opening a file covered the workspace. The terminal underneath kept running and was neither visible nor typeable, so reading a file while an agent talked was a toggle loop: open it, close it to read the reply, open it again. The Files tree already docks; the two surfaces you go to *from* it did not. They dock now, as a flex sibling of the terminal column rather than a narrower overlay — that distinction is the feature. `set_grid_size` is driven by the terminal element's laid-out bounds, so a column takes width away from the grid and the PTY reflows into what is left; a card painted over half the workspace would have left the grid full width with half of it hidden. `overlay_top` stops ordering a pair and starts choosing between them: a column has one child, and two `flex_1` siblings would split it and fight. Fill mode keeps the old vector, the old opaque paint and the old platform hoist untouched, so nothing about today's overlay changes for anyone who picks it. - Half the terminal column by default; drag the divider, double-click it to cycle a third / half / two thirds, or use the palette commands. Two thirds deliberately runs past the half-window cap the side panels obey — only the terminal's floor binds it. - `DOCUMENT_MIN_W` joins the width budget: both side panels reserve it the way they already reserve each other, and the column is derived from the *live* sidebar and panel widths rather than their floors, so a panel someone dragged wider is width the terminal keeps. - A window too narrow to seat both fills for that frame. The fallback is derived at render time and never stored, so widening re-docks on the next frame with nothing to undo. - Fill or dock is per tab, on the header's context menu. Reading a long file over the whole window in one tab while an agent keeps half of another is the normal case, and one global switch made each of those flip the other. A tab that has not been told reads `document_layout` from the config, which is what a fresh tab starts as — and which the menu therefore does not write, since every untold tab is reading it. - Everywhere but macOS the title bar spans the workspace, which left a bar's height of nothing above the column. The header is drawn into it, and behaves like the title bar it now sits in. With the detail panel closed the column reaches the window's right edge, so the header stops short of the trailing chrome through a width the tab strip's own reservation shares. - The docked headers drop the traffic-light inset they never had to clear, and the diff header's branch name becomes the thing that yields so the view toggle and the close tile survive a column's width. New in `config.json`: `document_ratio`, and `document_layout` for what a fresh tab starts as. Four new actions, bindable and unbound by default.
tty7
A terminal workbench: persistent sessions, remote work, agents.
Pure Rust · GPU rendering on Zed's gpui · VT core from Alacritty
English · 简体中文
Why
- Performance — ~2× the throughput of Alacritty, Ghostty, or Kitty (benchmarks)
- Persistent sessions — quit or reboot; your shells and supported agent sessions keep running, no tmux
- Editor-grade input — suggestions, completion, highlighting, history search
- Remote development — files, repos, panes, and git data stay on the remote machine
- Native SSH — profiles, SFTP, port forwarding, and jump hosts
- Agent-aware — Claude Code, Codex & co.: status, notifications, git context
- CLI + Skills — agents create panes, run commands, and inspect output
Install
Native builds for macOS, Windows, and Linux 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 libraries bundled |
What's inside
| Editor-grade 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 · nine themes · IME |
| Agent-aware | per-pane detection (18 CLIs): status dot · notifications · branch + diff · resume after reboot · tray icon when input is needed |
| Remote workspaces | remote files, repos, changes, diffs, worktrees, tabs, and panes · reconnect from any client and continue where you left off |
| CLI + Skills | bundled tty7 CLI · agent skill · pane/workspace control · real PTY commands · output, process, port, and agent status |
| SSH | native russh stack: profiles with keychain secrets · SFTP panel · port forwarding · jump hosts · one-time, unprivileged tty7-server install |
Full documentation lives in docs/ —
keyboard shortcuts ·
config.json ·
CLI reference. The agent-facing CLI interface is also
documented in skills/tty7/SKILL.md.
Install the skill with:
npx skills add l0ng-ai/tty7 # install
npx skills update tty7 # update later
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 I/O — 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 server 11 MB.
Methodology and one-command reproduction: scripts/bench/.
Built on gpui and alacritty_terminal · Apache-2.0 · Discord · Changelog
Description
A terminal workbench in pure Rust: shells, persistent sessions, SSH, coding agents. GPU-rendered on Zed's gpui, VT core from Alacritty.
ai-agentsalacrittyclaude-codecoding-agentcross-platformdaemondeveloper-toolsgpugpuilinuxmacosptyrustshellsshterminalterminal-emulatorterminal-multiplexertmuxwindows
Readme
Apache-2.0
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Rust
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