Server providing Argo CD integration for MCP clients.
Nothing to run from here
Umbriel is installed from its publisher's own source and answers where it runs, so this marketplace is not in the path of a single call. There is no address here to send one to, and a panel that pretended otherwise would be showing you an answer we made up. Install it and call it from your own client — the Installation tab has the entry for each one.
99/100
trust score
34
tools declared
local
runs on your machine
58
downloads
What it does
Control the Umbriel Wayland compositor: windows, workspaces, input, screenshots, clipboard.
Quickstart
Install it the way its author documents:
1. cargo install umbriel-mcp --version 0.4.1
The full guide: https://crates.io/crates/umbriel-mcp
Publishernot claimed
DAAll 1 server
dot-ASH1 server
1 category
Collected from a public index. Nobody has claimed this account, so nothing here was written by its author — claim it if it is yours.
Installation
Where are you running it?
Every route below installs the same thing and ends at the same approval screen. This one runs on your machine: your client starts Umbriel as a process under your own user, with your files and your network, so the tool surface below is what it can do to your computer rather than to a server somewhere else. Its scan result is on the Security tab — read the surface before you approve it.
Install it the way its author documents:
1. cargo install umbriel-mcp --version 0.4.1
The full guide: https://crates.io/crates/umbriel-mcp
Tool surface
What the model actually sees. Descriptions are diffed on every release — see version history.
Read from its source code. A server that builds its tool list when it starts can list more tools than this.
List the windows open on this desktop with id, app_id, title, geometry, monitor and workspace. Use it to answer what is open or what is on workspace 4; pass workspace "4" for that workspace on every monitor.
No parameter schema on file.
List this desktop's workspaces with monitor, index, layout, window count and focus. Each monitor has its own numbered workspaces.
No parameter schema on file.
List this desktop's monitors (outputs) with position, modes, scale and the workspace each one shows.
No parameter schema on file.
Get the window that currently has focus on this desktop.
No parameter schema on file.
List layer-shell surfaces such as bars, panels and wallpapers.
No parameter schema on file.
Switch to a workspace by position or name, optionally scoped to an output.
No parameter schema on file.
Focus a window by id, optionally warping the pointer onto it.
No parameter schema on file.
Ask a window to close; acts on the focused window when no id is given.
No parameter schema on file.
Kill the process owning a window; acts on the focused window when no id is given.
No parameter schema on file.
Move the focused window to a workspace, optionally scoped to an output.
No parameter schema on file.
Toggle fullscreen for the focused window.
No parameter schema on file.
Float or tile a window; acts on the focused window when no id is given.
No parameter schema on file.
Resize the focused window by moving one edge by a signed fraction (-0.9 to 0.9).
No parameter schema on file.
Set the active workspace layout: scrolling, dwindle, master or floating.
No parameter schema on file.
Toggle the workspace overview.
No parameter schema on file.
Launch a command through the compositor with an activation token.
No parameter schema on file.
Run any raw umbriel action, for anything the other tools do not cover.
No parameter schema on file.
Move the pointer to absolute screen coordinates.
No parameter schema on file.
Click a mouse button at the current pointer position.
No parameter schema on file.
Scroll the mouse wheel at the current pointer position.
No parameter schema on file.
Press at one point, drag to another, and release.
No parameter schema on file.
Type literal text into the focused surface.
No parameter schema on file.
Press a key chord such as ctrl+c, alt+Tab or Return.
No parameter schema on file.
Capture the screen, one output, or one window as a downscaled image. A window_id captures that window even on a hidden workspace, without switching to it.
No parameter schema on file.
Capture the screen, one output, or one window and return the text found in it by OCR. A window_id reads that window even on a hidden workspace, without switching to it.
No parameter schema on file.
Find text on screen and report absolute screen coordinates for each match.
No parameter schema on file.
Find text on screen and click its first match.
No parameter schema on file.
Describe the Umbriel compositor itself: installed version, keyboard layouts, active keybind submap, color management and tearing state.
No parameter schema on file.
List the actions Umbriel can perform (what run_action and keybinds accept), with descriptions. Filter by text such as "workspace" or "focus".
No parameter schema on file.
Search Umbriel's configuration options by path, such as "gap" or "blur", returning exact key names, types, defaults, ranges and allowed values. Use it before suggesting config changes.
No parameter schema on file.
Read the user's Umbriel config, or one section such as "keybinds", together with whether it validates. Use it for questions like what a key does or how a setting is configured.
No parameter schema on file.
Remove a key chord's binding from the user's Umbriel config. The previous config is backed up and Umbriel applies the change immediately.
No parameter schema on file.
Read the current clipboard contents.
No parameter schema on file.
Replace the clipboard contents.
No parameter schema on file.
Free
$0 forever
- Every tool, no call limit
- No card, and mcprush charges nothing for it
- Source published under MIT
- Runs on your machine — nothing of it reaches our gateway
- Nothing to cap, because mcprush bills nothing
What counts against your monthly calls
| Tool | Unit | Calls used | Out of the allowance |
|---|
Nothing here is billable: mcprush charges nothing to install Umbriel or to call it, at any volume.
Call allowance · this installenforced at the gateway
Monthly allowance, in calls
—
—
Alert at 80% · then the tool returns a normal MCP error
Used this month: —
ATrust score 99 / 100
Release 0.4.1 · scanned 6 Nov 2026
Two independent axes, because powerful and malicious are different questions. The grade is threat only. The capability level is blast radius, and it is never a penalty on the grade — it is priced as one subtract-only term in the score, where you can see it.
Threat score100
Client score99
Findings1 threat · 0 capability
Capabilityminimal
Coveragesource
Verificationrepo
Surface digest2dc22d3bf39daa3966da07121ef3ae7218597d0cc75600bd6ac9471b4c82a657
Score vectorthreat 100 → client 99
| Term | Level | What it prices | Points |
|---|---|---|---|
| capability-exposure | minimal | capability blast radius (minimal) — client exposure if the model is manipulated | −0 |
| verification-discount | repo | publisher verification (public source) — no provenance, but the source is public and inspectable | −1 |
| coverage-honesty | source | inspection depth (source) — how much of the target the scan could see | −0 |
score = clamp(round(threatScore − E_cap − E_ver − E_cov), 0, 100). No model, no opinion, no network call at scoring time: the same methodology version against the same bytes always produces this number, and every line above is a field of the report rather than a summary of it.
What the scan could actually read
A grade is only as meaningful as its coverage, so the scanner publishes its own depth before it publishes its result.
Tool surfacenot available
Implementation sourceread
Package metadataread
Live transportnot available
No tools were enumerated, so prompt-injection, capability and toxic-flow analysis had no tool surface to inspect. To grade a package’s real runtime tools, scan the running server: --command "npx -y <package>".
Capability — what it could do if the model were manipulated
Tags derived from each tool’s schema and the implementation, not from what the tool calls itself. minimal is the level these add up to.
| Tool | Capability tags | Why the tag was assigned |
|---|---|---|
| No per-tool rows for this release — see the note below. | ||
No tool surface was enumerated, so there is nothing to attribute a capability to.
Toxic-flow graph
The lethal trifecta, checked as a graph rather than as a checklist: untrusted input, a sensitive source and an external sink have to meet before there is a path worth worrying about.
The public result for this release does not print the flow graph, so there is nothing to show here. That is not the same as "no paths were found": what the scan did read is above, under coverage.
Supply chain and provenance
Integrityfirst-seen
Surface digest2dc22d3bf39daa39
Scanned2026-11-06
This is the first scan of this surface here, so there is nothing yet to compare it against.
Every result on this tab comes from one deterministic pass over the published package — offline, rule by rule, and auditable line by line above. Same methodology version, same bytes, same score.
Release history
It installs from its repository rather than from a versioned package, so the command cannot be pinned to a release. The history below is for reading; the current release on file is 0.4.1.
0.4.1
undated
latestNo release note was published with this version.
—
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Nobody has reviewed this listing. The rating on the card is the mean of the reviews written here and nothing else, so there is no rating until somebody writes the first — which takes a signed-in account that does not publish it, and nothing else.