---
title: "The tty7 command"
description: "Driving the workbench from a script, a Makefile, or another agent."
---

`tty7` is a thin, non-interactive client of the tty7 server. Every verb runs and
exits; `--json` makes the output machine-readable. **The GUI does not have to be
running** — the server is what owns the panes.

It ships inside every installer and is put on PATH at launch, so it works from
any terminal on the machine. [Installation →](/getting-started/installation#the-tty7-command)

## Start with `doctor`

```bash
tty7 doctor
```

One table that answers everything you need before doing anything else: whether a
server is reachable, whether its wire dialect matches this binary, and whether
`TTY7_CONFIG_DIR` / `TTY7_WS` / `TTY7_PANE` are set — that is, whether you are
running *inside* a tty7 pane.

Being inside a pane matters because the address-taking verbs (`split`, `send`,
`capture`, `procs`, `wait`, `pane close`) default to `$TTY7_PANE`, and
`run --keep` files its pane into `$TTY7_WS`. Outside one you must name a target,
and the error says so rather than guessing.

## Addresses

| Shape | Means | Stable? |
|---|---|---|
| `%42` | A pane | **Yes** — a pane keeps its id for its whole life |
| `@7` | A tab, numbered across the whole machine in tree order | **No** — it shifts whenever any workspace or tab appears or disappears |
| `api` · `76698a44` · a full UUID | A workspace, by name, unique id prefix, or id | Yes |

Re-resolve `@N` immediately before using it. Pane and workspace ids are safe to
remember.

## Two ways to run something

### Blocking, with a real exit code

```bash
tty7 run -- cargo test           # streams to stdout, exits with cargo's code
tty7 run --cwd /path -- make
tty7 run --keep -- cargo build   # leaves the pane behind as a new tab
```

The closest thing to running the command yourself — the difference is that it
gets a real PTY (so colour, progress bars, and TUIs behave), and that you can
watch it happen in the window.

<Note>
  Everything after `--` belongs to the child: `tty7 run -- cargo test --keep`
  passes `--keep` to cargo, not to tty7.
</Note>

### Non-blocking: a pane you talk to over time

This is the one worth reaching for. Get a pane, give it work, come back.

```bash
PANE=$(tty7 split --v)                    # or --h; prints "%83"
tty7 send "$PANE" 'npm run dev' --enter
# ... later
tty7 capture "$PANE" --plain
tty7 pane close "$PANE"
```

If you are not inside a tty7 pane there is nothing to split, so make your own
place to work:

```bash
tty7 new --json /path/to/repo    # {"id": "...", "pane": 83}
```

## Reading a pane

```bash
tty7 capture %83 --plain
```

`capture` returns what the server stored. Without `--plain` that is the raw
bytes, escapes and all. With `--plain` those bytes are replayed through a real
terminal grid and you get the text that produced — which is not the same as
stripping escapes yourself:

- A line the shell wrapped at the pane width comes back as **one** line
- A progress bar that rewrote itself with `\r` reads as its **final** value
- Cursor addressing puts text **where the program put it**, so a TUI's screen
  lands where it was drawn

Use `--plain` whenever a human would want to read the output.

<Warning>
  A screen is a rectangle. Whatever scrolled off the top is gone, and an exit
  code was never on it. When you want the *answer* rather than the *view*, have
  the shell write it somewhere clean:

  ```bash
  tty7 send "$PANE" 'cargo test > /tmp/t.log 2>&1; echo $? > /tmp/t.rc' --enter
  ```
</Warning>

## Knowing when something finished

```bash
tty7 procs %83
```

The process tree inside the pane, indented by depth, with `*` on the foreground
process — plus the ports those processes are listening on. **When the only entry
left is the depth-0 shell, the command is done.** That is far more reliable than
grepping the screen for a sentinel that can wrap or echo twice.

For agents specifically, use [`tty7 wait`](/agents/orchestration) instead of
polling.

## Looking around

```bash
tty7 ls              # every workspace: tabs, panes, who's attached
tty7 ws tree api     # one workspace as a tree
tty7 pane ls --all   # every pane, including orphans no workspace holds
tty7 agents          # every coding agent and its status
tty7 status          # server pid, uptime, pane count, build, socket
tty7 machine ls      # this machine plus any linked remotes
tty7 events          # stream server events until interrupted
```

`--json` on any of them, `-q` to suppress success output (errors still print).

## Remote machines

```bash
tty7 -m devbox ls
tty7 -m devbox run -- cargo test
```

`-m` routes over a link the local server already holds. It will not dial a fresh
connection — connect from the GUI first.
[Remote workspaces →](/remote/workspaces)

<Card title="Full command reference" icon="book" href="/cli/reference">
  Every verb, flag, and JSON shape.
</Card>