omarchy-mcp

Give any MCP-compatible LLM full control of an Omarchy Linux desktop.

omarchy-mcp turns AI coding agents into genuine desktop operators. Through one MCP server, an agent can manage themes and appearance, launch apps, take screenshots and recordings, control audio and networking, read system state, drive Hyprland windows and tiling layouts, and orchestrate entire multi-agent workspaces — 108 tools across 15 modules.

The project is built around one rule: a desktop mutation is not successful merely because a command ran. Every action is confirmed against measured desktop state — geometry, focus, service status — so agents can act autonomously without silently failing.

Status

See COMMANDS.md for tool-by-tool verification status and ROADMAP.md for planned milestones.

Related MCP server: linux-computer-use

Why this exists

Desktop-control tools often report that an action was dispatched without checking whether it worked. That is particularly unreliable for tiling window managers, where focus, floating rules, fullscreen state, workspace rules, and the mouse can change the target.

This server adds the missing feedback loop:

• Window mutations report measured before/after state and a clear verdict.

• Explicit address and match selectors reduce focus-related mistakes.

• A PID-ancestry guard prevents the agent from closing its own host window.

• Destructive system operations require an explicit configuration opt-in.

• health_check diagnoses missing commands, layout installation, and desktop connectivity.

• agent_grid turns an entire multi-agent workspace request into one verified MCP operation.

Quick start

Requirements

• An installed Omarchy desktop

• Hyprland with Omarchy's Lua configuration bridge

• Node.js 20 or newer

• npm

Individual features may also use wtype, nmcli, bluetoothctl, wpctl, grim, and wl-copy. health_check reports which optional commands are available.

Build

git clone https://github.com/hlsitechio/Omarchy-MCP.git
cd Omarchy-MCP
npm ci
npm run build
npm test

The MCP entry point is:

node /absolute/path/to/Omarchy-MCP/build/index.js

Install the native grid layout

The regular desktop tools can run without the custom layout, but deterministic grid/master tiling and agent_grid require it.

install -Dm644 hypr/layouts.lua ~/.config/hypr/layouts.lua

Make sure the user Hyprland configuration loads it:

require("hypr.layouts")

Then reload and check the configuration:

hyprctl reload
hyprctl configerrors

Omarchy package files under /usr/share/omarchy should remain untouched; the layout belongs in the user configuration under ~/.config/hypr.

Connect an MCP client

Any client that supports local stdio MCP servers can launch build/index.js.

OpenCode

Add this to ~/.config/opencode/opencode.json, replacing the path with the repository's absolute path:

{
  "mcp": {
    "omarchy": {
      "type": "local",
      "command": [
        "node",
        "/absolute/path/to/Omarchy-MCP/build/index.js"
      ],
      "enabled": true
    }
  }
}

Claude Desktop

{
  "mcpServers": {
    "omarchy": {
      "command": "node",
      "args": ["/absolute/path/to/Omarchy-MCP/build/index.js"]
    }
  }
}

Restart or reconnect an existing MCP client after rebuilding so it reloads the tool schema.

First prompts to try

• “Check whether my Omarchy MCP is healthy.”

• “Show every window with its workspace and geometry.”

• “Open a 2x2 grid of OpenCode on the next empty workspace.”

• “Put Claude top-right and Codex bottom-right.”

• “Move Firefox to workspace 4 and confirm where it ended up.”

• “Snap this window to the top-left and tell me its final size.”

• “List nearby Wi-Fi networks, but do not connect to anything.”

One-command coding-agent workspaces

agent_grid launches independent Omarchy TUI windows, applies the native grid layout, assigns exact or sparse cells, and verifies each window's application class, workspace, floating state, and observed geometry.

For four applications, ask for a 2x2 grid. A literal 4x4 grid contains 16 cells and launches 16 applications when fully populated.

Homogeneous grid

Prompt:

Open a 2x2 grid of OpenCode in this repository.

Equivalent arguments:

{
  "agent": "opencode",
  "cols": 2,
  "rows": 2,
  "workspace": "next_empty",
  "cwd": "/path/to/project"
}

Mixed sparse grid

Prompt:

Open Claude in the top-right and Codex in the bottom-right.

Equivalent arguments:

{
  "cols": 2,
  "rows": 2,
  "placements": [
    { "agent": "claude", "position": "top_right" },
    { "agent": "codex", "position": "bottom_right" }
  ]
}

Supported agents are OpenCode, Claude, Codex, Gemini, Copilot, Crush, Grok, Oh My Pi (omp), and Pi. Use dry_run: true to validate a complete plan without opening windows.

Named corner assignments and explicit row/column assignments persist when the user changes workspaces. Existing tiled windows are counted before launch, and the request is rejected if it would exceed the grid capacity.

Tool groups

The complete list and its live-test status are maintained in COMMANDS.md.

Safety model

No shell interpolation

Commands are executed with argument arrays through Node's execFile or spawn; user input is not concatenated into shell commands.

Destructive operations are opt-in

Shutdown, reboot, package installation, system updates, and configuration refreshes are disabled by default. Enable them with:

mkdir -p ~/.config/omarchy-mcp
printf '%s\n' '{"enableDangerous": true}' > ~/.config/omarchy-mcp/config.json

Or set the process-level override:

OMARCHY_MCP_ENABLE_DANGEROUS=1 node build/index.js

Use this setting only for a client and session you trust.

Host-window protection

Window-closing and other high-risk operations resolve the MCP host process's PID ancestry and refuse to target its own terminal window. Explicit window addresses are preferred for mutations because Hyprland focus can follow the mouse.

Verified outcomes

Mutating window tools return statuses such as confirmed, split_confirmed, opened_but_not_split, or not_detected, together with the measured state and a recovery hint where appropriate.

Architecture

MCP client
    │  JSON-RPC over stdio
    ▼
MCP tool + Zod input validation
    │
    ├── Omarchy CLI ───────────── themes, capture, power, applications
    ├── Hyprland Lua dispatcher ─ windows, workspaces, native layout
    └── System CLIs ───────────── nmcli, bluetoothctl, wpctl, upower
    │
    ▼
State reread + geometry/verdict engine
    │
    ▼
Structured MCP result with STATUS, evidence, and HINT

Source layout:

src/index.ts              server and tool registration
src/exec.ts               shell-free process execution
src/hypr.ts               desktop introspection and verification helpers
src/result.ts             consistent MCP success/error results
src/config.ts             safety configuration
src/tools/                 tool domains
hypr/layouts.lua          native deterministic grid/master layout
test/                      automated and manual live tests

Hyprland window dispatches use the Omarchy Lua API, for example:

hl.dsp.window.resize({ window = "address:0x...", x = 900, y = 700, relative = false })

The native layout supports grid and master modes plus runtime messages for forced dimensions, ordering, swaps, sparse cells, and per-workspace state.

Development and verification

npm run build      # TypeScript compilation
npm test           # compilation + deterministic planner tests
npm run smoke      # live local MCP/Omarchy smoke test

The smoke test is intentionally desktop-aware. It checks tool registration, the health report, read-only Omarchy/Hyprland access, the destructive-operation gate, and an agent_grid dry run. Visual mutations are verified manually on a real Omarchy session and recorded in COMMANDS.md.

For a live agent-grid exercise:

node test/live-agent-grid.mjs

This command opens real windows and changes the active workspace; it is not part of npm test.

Troubleshooting

The new tool does not appear

Run npm run build, then restart or reconnect the MCP client. MCP clients normally cache the tool list for the life of the server process.

health_check says the grid layout is not fully installed

Confirm that ~/.config/hypr/layouts.lua exists, that the user Hyprland config contains require("hypr.layouts"), and that hyprctl configerrors is empty.

A window command selected the wrong target

Call window_list, then retry with the returned address instead of relying on the focused window. This avoids input:follow_mouse focus changes.

A dangerous tool says it is disabled

That is the safe default. Enable it explicitly only after reviewing the safety model.

A layout command reports a Hyprland warning

Some compositor no-ops are expected—for example, swapping a fullscreen window or swapping toward an empty cell. The MCP result distinguishes these warnings from confirmed mutations.

Contributing

Contributions are welcome across implementation, live verification, documentation, testing, accessibility, and release engineering. The repository provides structured issue forms for bugs, tool proposals, and verification reports, plus a pull-request checklist aligned with the project safety model.

Start with CONTRIBUTING.md, then choose a contribution lane from ROADMAP.md. Broad or high-risk changes should begin with an issue so scope, evidence, and recovery behavior can be agreed before coding.

Project documents

• COMMANDS.md — implementation and live-verification ledger

• ROADMAP.md — milestones, priorities, and release gates

• CONTRIBUTING.md — contribution and testing workflow

• GOVERNANCE.md — roles, decisions, reviews, and releases

• SECURITY.md — private reporting and security boundaries

• CODE_OF_CONDUCT.md — community participation standards

• AGENTS.md — technical context for coding agents working on the repository

License

MIT