move_mouse

Move the pointer inside the current controlled window using screenshot-relative coordinates. Returns a fresh screenshot.

SERVERCoWork OS SOURCECoWork-OS/CoWork-OS

High RISK CLASS

Category Execute

Parameters 00 required

Recommended Rate-limitedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/cowork-os/move-mouse.md

WHAT IT DOES

What move_mouse does on CoWork OS

AI agents invoke move_mouse to trigger actions in CoWork OS. What it does depends on the arguments the agent supplies, and its effects often reach beyond the immediate call: builds kicked off, notifications sent, workflows started.

RISK

Why move_mouse is rated High

This tool performs a browser/GUI action (moving the mouse pointer within a controlled window), which constitutes an external operation that triggers UI interactions. It falls under Execute as it drives real UI state changes whose effects depend on coordinates and context. Misuse could cause unintended UI interactions, clicks on sensitive elements, or navigation to unintended areas.

From the tool's definition Move the pointer inside the current controlled window using screenshot-relative coordinates. Returns a fresh screenshot.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs move_mouse safely

PolicyLayer is an MCP gateway: it sits between your AI agents and CoWork OS, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For move_mouse, this is the rule to start with:

move_mouse Rate-limited

move_mouse stays usable, but rate-capped: a runaway agent can't fire it dozens of times a minute. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "move_mouse": {
      "limits": [
        {
          "counter": "move_mouse_rate",
          "window": "minute",
          "max": 10,
          "scope": "grant"
        }
      ]
    }
  }
}

RATE-LIMIT THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect CoWork OS, apply this rule, and every move_mouse call is checked against it from then on.

FAQ

Questions about move_mouse

What does the move_mouse tool do? +

Move the pointer inside the current controlled window using screenshot-relative coordinates. Returns a fresh screenshot. It is categorised as a Execute tool in the CoWork OS MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.

How do I enforce a policy on move_mouse? +

Register the CoWork OS MCP server in PolicyLayer and add a rule for move_mouse: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches CoWork OS. Nothing to install.

What risk level is move_mouse? +

move_mouse is a Execute tool with high risk. Execute tools should be rate-limited and have argument validation enabled.

Can I rate-limit move_mouse? +

Yes. Add a rate_limit block to the move_mouse rule in your PolicyLayer policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.

How do I block move_mouse completely? +

Set action: deny in the PolicyLayer policy for move_mouse. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.

What MCP server provides move_mouse? +

move_mouse is provided by the CoWork OS MCP server (CoWork-OS/CoWork-OS). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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