l0ng-ai d76ed6df50 diag(tree-sync): correct what the strand-a-pane note claims, after measuring it
The note said refused tree operations are how this window strands a shell.
They are one way, and the minority one — which matters, because it is the way
that would attract a fix.

Measured with a randomized tree fuzz over the CLI (70 operations: tab new,
split, pane close, tab close, tab move, invariants checked after each):

  daemon only, no GUI     0 orphaned shells
  same run, window open   16 orphaned shells, 12 panes actually held either way

A second run of 70 left 10 orphans, and the warning this note sits on fired for
3 of them. The other 7 were spawned for a layout the window then threw away
without sending an operation at all — the log shows "dropping a superseded
hydration" and a delta that "did not apply cleanly" forcing a re-pull. Nothing
is refused on those paths, so nothing reaches this arm.

They are live `zsh` processes, not bookkeeping: each orphan answers
`tty7 procs` with a pid.

So the note now says which share this path accounts for, and that the sweep has
to be phrased against the end state — a pane this window spawned that neither
the machine tree nor any live view holds is stranded however it got there —
rather than against any single failure, which would fix a third of it.

Still diagnosis only, for the reason already recorded: the sweep belongs after
a hydration settles, and verifying it needs a GUI this environment cannot
watch.

2949 tests pass.
2026-08-15 18:22:59 +08:00

tty7

tty7

A terminal workbench: persistent sessions, remote work, agents.

Pure Rust · GPU rendering on Zed's gpui · VT core from Alacritty


CI Version Platforms License Discord

English · 简体中文


tty7 with a tab sidebar of agent sessions across several repos, running Claude Code

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/.


S
Description
A terminal workbench in pure Rust: shells, persistent sessions, SSH, coding agents. GPU-rendered on Zed's gpui, VT core from Alacritty.
Readme Apache-2.0
34 MiB
Languages
Rust 99.1%
Shell 0.5%
PowerShell 0.2%
Inno Setup 0.1%