l0ng-ai 9d6ae46ae2 fix(terminal): submit a plain single line as typed, not as a paste (#660)
`submit_bytes` wrapped every buffer in `ESC[200~ … ESC[201~` whenever the
shell had bracketed paste on. That is what a paste is *for*: the shell
inserts the bytes literally instead of running them through its binding
table. It also means none of the shell's input-time expansions fire.

fish binds space (and `;`, `|`, `&`, …) to `expand-abbr`, so an
abbreviation only ever expanded when the whole line was the abbreviation
-- `j` worked, because fish's expand-on-execute covers the token under
the cursor, and `j build` reached the PTY verbatim and died as "Unknown
command: j".

A single line with no control characters can be handed over exactly as a
human typing would produce it: raw bytes, then CR. `handoff_line_to_shell`
already does this for Tab and ⌃R handover; this puts the submit path on
the same footing. fish abbreviations expand, and so does anything else
bound to a printable key -- zsh `magic-space`, readline macros.

Everything else keeps the paste framing, for the reasons it was added:

- A control character in the buffer would be *acted on* rather than
  inserted -- a Tab completes, `^U` kills the line. That rules out
  embedded newlines too, so a multi-line command still goes in as one
  paste and one CR, one prompt cycle instead of one per line.
- Past 512 bytes the shell's per-byte redraw starts to cost. Against zsh
  5.9 with zsh-syntax-highlighting and zsh-autosuggestions, submit-to-
  output holds at the bracketed ~85ms up to ~300 bytes, then 233ms at
  600, 390ms at 1200, 735ms at 2400. Nothing typed by hand reaches that;
  a pasted-in wall of text keeps the flat cost.

ESC is still stripped on both paths, so a buffer carrying its own
`ESC[201~` cannot close a paste early -- and on the raw path there is no
paste to break out of, only literal text at the prompt.

Verified by replaying the exact byte sequences into fish 4.9.2, bash
5.2.21 and zsh 5.9 on a real pty: 57 representative single-line commands
(quoting, globs, substitution, redirection, pipelines, unicode, leading
space, `!`-history, URLs) produce byte-identical output under both
framings, and `j build` expands only under the raw one.
2026-09-07 18:28:08 +08:00
2026-09-04 17:42:08 +08:00
2026-09-04 17:42:08 +08:00
2026-09-04 17:42:08 +08:00

tty7

tty7

A terminal workbench: persistent sessions, remote work, agents.

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


CI Version Platforms License Discord

English · 简体中文


tty7 with a tab sidebar of agent sessions across several repos, running Claude Code

Why

A background server owns your shells and panes — not the window. Everything below follows from that.

  • 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
  • Agent-aware — Claude Code, Codex & co.: status, notifications, and git context for every repo at once
  • Scriptable by agents — one agent opens a pane for another, hands off a task, waits, and reads the result, with or without the GUI running
  • Editor-grade input — suggestions, completion, highlighting, history search, with no plugin to install
  • Remote development — files, repos, panes, and git data stay on the remote machine, over a native SSH stack
  • Git beside the terminal — source control, diffs, and worktrees without leaving the window

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

Agent-aware per-pane detection (19 CLIs) · status dot · notifications · branch + diff · tray icon when input is needed · resume after reboot · tab sidebar grouped by repository
CLI + Skills bundled tty7 CLI · agent skill · run streams a command and exits with its code · split · send · wait --until free · capture
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 · ⌘ J panel with process tree and listening ports · 13 themes, your own YAML, iTerm2 import · IME
Shell integration injected when a pane starts, nothing to install · prompt marks · working directory · exit codes · command-finished notifications · zsh, bash, fish, PowerShell, WSL, remote panes
Remote workspaces remote files, repos, changes, diffs, worktrees, tabs, and panes · reconnect from any client and continue where you left off
SSH native russh stack: profiles with keychain secrets · SFTP panel · port forwarding · jump hosts · one-time, unprivileged tty7-server install
Git panel follows the focused pane · stage, commit, amend, branch, push, stash · side-by-side or unified diffs · commit graph with cherry-pick, revert, and reset · a new worktree opens its own tab

Supported agents

Detection is free: brand avatar, branch + diff, tab title. Status takes one click under Settings → Agents to install that agent's hook, and brings the status dot, notifications, the tray icon, tty7 wait, and resume after a reboot. Fork needs both — the agent's own fork command, and the hook that tells tty7 which session to fork.

The full support matrix, all nineteen
Agent Detected Status · resume Fork
Claude Code
Codex
Grok
OpenCode
Oh My Pi
Droid
Qwen Code
Goose
Gemini
Copilot
Kimi Code
Pi
Aider
Amp
Cursor
Auggie
Hermes
Vibe
Antigravity

None of them are wrapped or proxied — the agent you start is the agent you get, in a normal PTY, with its own interface. An agent launched through a wrapper script can be mapped to one by name with agent_commands in config.json.

Documentation

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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