thomasandClaude Fable 5 753d1dceee feat(core): pane observers, TTY7_* context env, and control aggregate queries
Server-side gaps for the tty7 CLI (docs/cli-design.md, the additive tier):

- Pane multi-subscriber: the single controlling subscriber keeps its
  preemption semantics, and a pane now also carries N read-only observers.
  A new pane-protocol frame `Observe { pane_id, size }` (kind 54) joins a
  connection as an observer: it gets the Snapshot replay, then
  Output/Exited/Size, and its Input/Resize is answered with an Error frame
  instead of reaching the shell. Observers never displace the GUI, never
  defer the dead-pane reap, and are pruned when their connection goes away.

- Context env injection: every locally spawned shell now carries
  TTY7_PANE (its pane id), TTY7_WS (the workspace named in Spawn), and
  TTY7_SOCKET (the control endpoint path), next to the existing TTY7
  marker. ClientMsg::Spawn gains an optional `workspace` field, carried
  by the SPAWN_OWNED frame with serde defaults.

- Aggregate queries: ControlRequest::{AgentStates, Routes, Status} with
  ReplyOk::{AgentStates, Routes, Status}. AgentStates snapshots each
  pane's live agent session state through a new Services::panes directory
  wired from the daemon's registry; Routes lists the SshManager's held
  connections with key/kind/liveness; Status reports pid, uptime from a
  process-start instant, pane count, both dialect versions, build, and
  the control socket path.

- Dialect bump: CONTROL_VERSION 3 -> 4, PROTOCOL_VERSION 4 -> 5,
  following the convention set by bed22d8 and 1792bb8/a4972d3 where every
  additive variant bumped the strict-equality handshake versions (and
  with them the tty7-server-c{control}p{protocol} install name).

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_014JPaaZVK7rfQPKyrymzsYv
2026-07-31 09:44:22 +08:00

tty7

tty7

A terminal workbench: shells, sessions, SSH, coding agents.

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


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Why

  • Fast — ~2× the throughput of Alacritty, Ghostty, or Kitty (benchmarks)
  • Sessions persist — quit or reboot; your shells keep running, no tmux
  • Editor-grade input — completion, syntax highlighting, history search built in; zero config for zsh, bash, fish, PowerShell
  • Agent-aware — recognizes Claude Code & co. in a pane: status, notifications, session resume

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 libs bundled

What's inside

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
Coding agents per-pane agent detection (~17 CLIs): status dot, notifications, branch + diff, resume after reboot, tray icon that signals "needs your input"
SSH native russh stack: profiles with keychain secrets, SFTP panel, port forwarding, jump hosts

Details for every row: docs/features.md. Keybindings: ⌘ , opens Settings — browse and remap everything, tmux preset included (full list).

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 IO — 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 daemon 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.
Readme Apache-2.0
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