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l0ng-ai
44f0683d0a
The sidebar's elision measures against real glyph widths but slices by
`char`, so it can satisfy every width check and still hand back a torn
cluster. Scanning budgets from 30px to 200px over emoji fixtures, 48
widths produced output no font can render as intended:
"release-…\u{200d}👩\u{200d}👧" a joiner with nothing in front of it
"lon…\u{fe0f}" the variation selector lands on the ellipsis
"abcdef…🇳ghijklmnopqr" half a flag, which renders as a bare N
A tab title carrying an emoji is not exotic — plenty of TUIs and coding
agents put one there — and the second case is the same U+FE0F this repo
already carries an alacritty patch for.
`elide_keep_edges`, the tail-only fallback, and `short_title`'s 40-glyph
clamp now index grapheme clusters. `elide_path_keep_tail` cuts on `/`
and was already safe. Widths are unchanged: clusters are measured the
same way chars were, so every existing elision test still passes on the
same fixtures.
`unicode-segmentation` is already in the tree via gpui; pinning it here
adds one line to Cargo.lock and no new code.
Tests assert the property rather than the symptom: whatever survives on
either side of the ellipsis has to be a cluster-aligned prefix and
suffix of the input. That catches any tear, not just the three shapes
found here. Written first, confirmed failing on all three cut sites, and
green after.
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