deskctl/README.md

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# deskctl
Desktop control CLI for AI agents on Linux X11.
## Install
```bash
cargo install deskctl
```
Build a Linux binary with Docker:
```bash
docker compose -f docker/docker-compose.yml run --rm build
```
This writes `dist/deskctl-linux-x86_64`.
Copy it to an SSH machine where `scp` is unavailable:
```bash
ssh -p 443 deskctl@ssh.agentcomputer.ai 'cat > ~/deskctl && chmod +x ~/deskctl' < dist/deskctl-linux-x86_64
```
Run it on an X11 session:
```bash
DISPLAY=:1 XDG_SESSION_TYPE=x11 ~/deskctl --json snapshot --annotate
```
Local source build requirements:
```bash
cargo build
```
At the moment there are no extra native build dependencies beyond a Rust toolchain.
## Quick Start
```bash
# Diagnose the environment first
deskctl doctor
# See the desktop
deskctl snapshot
# Click a window
deskctl click @w1
# Type text
deskctl type "hello world"
# Focus by name
deskctl focus "firefox"
```
## Architecture
Client-daemon architecture over Unix sockets (NDJSON wire protocol).
The daemon starts automatically on first command and keeps the X11 connection alive for fast repeated calls.
Source layout:
- `src/lib.rs` exposes the shared library target
- `src/main.rs` is the thin CLI wrapper
- `src/` contains production code and unit tests
- `tests/` contains Linux/X11 integration tests
- `tests/support/` contains shared integration helpers
## Runtime Requirements
- Linux with X11 session
- Rust 1.75+ (for build)
The binary itself only links the standard glibc runtime on Linux (`libc`, `libm`, `libgcc_s`).
For deskctl to be fully functional on a fresh VM you still need:
- an X11 server and an active `DISPLAY`
- `XDG_SESSION_TYPE=x11` or an equivalent X11 session environment
- a window manager or desktop environment that exposes standard EWMH properties such as `_NET_CLIENT_LIST_STACKING` and `_NET_ACTIVE_WINDOW`
- an X server with the extensions needed for input simulation and screen metadata, which is standard on normal desktop X11 setups
If setup fails, run:
```bash
deskctl doctor
```
## Contract Notes
- `@wN` refs are short-lived handles assigned by `snapshot` and `list-windows`
- `--json` output includes a stable `window_id` for programmatic targeting within the current daemon session
- `list-windows` is a cheap read-only operation and does not capture or write a screenshot
## Support Boundary
`deskctl` supports Linux X11 in this phase. Wayland and Hyprland are explicitly out of scope for the current runtime contract.
## Workflow
Local validation uses the root `Makefile`:
```bash
make fmt-check
make lint
make test-unit
make test-integration
make site-format-check
make validate
```
`make validate` is the full repo-quality check and requires Linux with `xvfb-run` plus `pnpm --dir site install`.
The repository standardizes on `pre-commit` for fast commit-time checks:
```bash
pre-commit install
pre-commit run --all-files
```
See [CONTRIBUTING.md](CONTRIBUTING.md) for the full contributor guide.
## Acknowledgements
- [@barrettruth](github.com/barrettruth) - i stole the website from [vimdoc](https://github.com/barrettruth/vimdoc-language-server)