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Five places where a workspace, a tab or an attachment was real on one side of the socket and invisible on the other. They share a root: the GUI kept its own list of which workspaces exist, and consulted the machine tree only for the ones it already knew about. - The switcher listed only workspaces this client had opened, so anything the CLI made was missing from the GUI entirely — `tty7 new` looked like it had done nothing. The local group now merges what the machine holds, the way the remote groups already did, and `claim` keeps the id it was handed instead of quietly opening a fresh workspace beside it. Opening one hydrates from the tree whatever `restore_session` says: the setting decides whether a window comes back at launch, not whether an open one shows what is really in it, and the alternative was saving an empty session over live tabs. - A workspace deleted from another client left its row behind here, opening onto nothing. It is now forgotten with it. A window still showing one keeps it — `ws rm` leaves the panes running — and puts the workspace back under the same id rather than carrying on writing to a tree that has no record of it. - `tty7 ls` could never fill its ATTACHED column: `Workspace::attachment` was `serde(skip)`, which kept it off the disk as intended and off the wire as a side effect, so a workspace held by a GUI window read to every other client as unheld. It now travels, minus the token that proves the hold, and is stripped when the document is written instead. - `tab ls` and `ws tree` printed `tab.name`, which almost no tab has: the GUI's strip names tabs from OSC titles the tree never sees. Both now fall back through agent, cwd leaf and process name — the same ranking the switcher uses, moved into the core so there is one of it — and `tab ls` gained a GROUP column. - `sidebar_group` was readable from the CLI and writable only from the GUI; `tab group @TAB [GROUP]` closes that. Also `tty7 new --open`, which asks a running GUI to put a window on the workspace it just made: `GuiOpen` now carries a workspace id, since a workspace with an id has no business being routed to whichever window was focused last.
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 |
Terminal and keybinding reference: docs/features.md. The agent-facing CLI interface is 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