l0ng-ai 5de8fd552e fix(cli): check the inherited workspace before run --keep spawns
`run --keep` resolves `--ws` against the machine tree before it spawns
anything, and takes `$TTY7_WS` on trust — it only parses the id. Filing
the pane happens after the spawn, so a shell whose workspace has since
been removed, or one opened against another machine, started the pane and
then failed to file it. The pane kept running with nothing holding it.

Measured against a live daemon: with a `$TTY7_WS` this machine does not
have, `run --keep` exited 1 with a clear message and left a `sleep`
behind, `pane ls --all` reporting `"orphans":1`. With `--ws` spelled out,
the same bad id spawned nothing.

Recoverable — `pane ls --all` finds it and `pane close` ends it, both
documented — but nobody asked for the pane, and `$TTY7_WS` is the
*documented default* for `--keep`, so this is the ordinary path rather
than an exotic one.

Resolving the inherited id is now the same check the explicit one gets,
and only when `--keep` needs it: a plain `run` uses the workspace as an
ownership stamp, where a stale id costs nothing and the round trip to
find out would.

The spawn still precedes the filing — `TabCreate` names the pane the
daemon assigned, so it has to, and
`run_keep_spawns_first_then_files_the_pane_into_the_workspace` pins that.
What moved is only where the workspace is checked.
2026-08-16 04:56:50 +08:00

tty7

tty7

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

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


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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.
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