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* fix(terminal): upload pasted images to the remote host in SSH panes (#337) * fix(terminal): stage remote clipboard images in a private dir, off the UI thread Review follow-up to the SSH image-paste upload. `/tmp/tty7-clipboard-<user>` is a predictable name in a world-writable directory: any local account on the remote host could pre-create it, and the `Mkdir` result was discarded, so tty7 would have uploaded into a directory someone else owned — readable by them, and swappable for another image before the pane's agent opened the path. Screenshots are exactly the payload that must not land there. Images now stage in `$HOME/.cache/tty7/clipboard`, resolved from the session's own `realpath .`, and the directory is verified before anything is uploaded into it: a symlink is refused outright (`stat` would judge it by its target), a `chmod 0700` the daemon watched succeed is the ownership proof — POSIX only lets the owner change a mode — and a following `stat` must report exactly `0700`. Any doubt is a hard failure that falls back to pasting the local path rather than uploading. The uploaded file is chmod'd `0600` once the transfer lands. Only a verified directory is cached, so a preparation that failed is retried on the next paste instead of latching a "ready" flag over a directory that was never created. All of it moves off the UI thread. Preparing the directory, starting the transfer and polling it are blocking daemon+SSH round trips — the workspace route gives up after 30s, the standalone-SSH route sets no read timeout at all — and a keystroke handler must not make them. The pane pastes from a background task instead, which is also what lets the upload be watched to a terminal state: the SFTP panel's history only polls while that panel is open and drops finished jobs after 30s, so a failed upload used to leave a dangling remote path in the line and say nothing. Now it notifies, once, naming the host and the reason. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com> --------- Co-authored-by: l0ng-ai <24760907+l0ng-ai@users.noreply.github.com> Co-authored-by: Claude Opus 5 (1M context) <noreply@anthropic.com>
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 (~17 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