l0ng-ai 797bfc7447 test(control): make a new wire variant break the build, not a link
`CONTROL_VERSION`'s doc states the rule — move it whenever a variant is
added to or removed from `ControlRequest`, `ReplyOk` or `ControlEvent` —
and states what happens when it is missed: the frame fails to decode, the
read loop that failed on it takes the whole link down, and a remote
workspace opens with no tabs. The same doc records that this is not
hypothetical. The v5→v6 drift was most of the dialect, and all of it
shipped against a number that never moved.

Only one of the three enums was actually protected, and by accident:
`ControlRequest::deadline` matches exhaustively, so a new request cannot
be added without the compiler asking about it. `ReplyOk` and
`ControlEvent` had nothing. Checked rather than assumed — a probe variant
added to both compiled clean across the whole workspace, all targets, no
warnings.

The hand-written `every_reply` / `every_event` lists cannot catch it
either. They are cross-checked against other hand-written lists, so a
variant missing from the enum coverage *and* the list leaves every count
in agreement.

So: one exhaustive match per enum, in the test module, called from a test
so it cannot rot into dead code. Confirmed it fails for the case it
exists for — a probe variant in either enum is now an E0004 naming the
variant, at compile time, where it cannot be skipped.
2026-08-16 01:57:44 +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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