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Five things the first pass got wrong, in the order they bite.
`--until free --changed` waited on a command it had already missed: the
"something ran" edge is only set by a poll that catches the pane busy, and a
command that starts and finishes inside one 500ms interval never is. That is
indistinguishable from a command that never ran, so the timeout now names both
doors instead of letting a finished build read as a hang.
`free` also outranked the agent ladder, which is backwards. A pane whose depth-0
process *is* the agent — the tree cannot tell that apart from a shell at its
prompt — reads free for its whole turn, so a `waiting` the caller explicitly
asked for could be overwritten by a process-tree fact and then withheld by the
`--changed` rule that comes with it. `free` is now consulted only when none of
the requested agent states answered, which is both cheaper and what the docs
already claimed. An empty process tree is "we could not see in" rather than
"free" for the same reason `no-agent` exists.
`--key M-X` sent `ESC x`: the whole spelling was folded to lowercase, which is
free for Ctrl (the C0 rule clears the case anyway) and wrong for Alt, where the
character rides through as itself.
`send --help` listed the key vocabulary by hand next to the table it is a list
of; it had already drifted by one alias. It is generated now.
And a `pane close` batch that could not close everything raised an error, which
left `--json` holding prose exactly when a cleanup script needs to know which
panes are still its problem. It exits 1 with `{"closed":[…],"failed":[…]}`, with
the complaint still on stderr so `-q` reports it.
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 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 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
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