Drag the mouse from one position to another. Args: from_x: Starting X coordinate from_y: Starting Y coordinate to_x: Ending X coordinate to_y: Ending Y coordinate duration: Duration of the drag in seconds (default: 0.5) Returns: Success or error message
AI agents invoke drag_mouse to trigger actions in Computer Control MCP. 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.
Mouse dragging is a UI action that can trigger arbitrary operations depending on context: moving files, resizing windows, selecting content, or interacting with application controls. The effects are determined by the target application and coordinates, making this an Execute-category tool.
From the tool's definition Drag the mouse from one position to another — triggers UI interactions (drag-and-drop operations) whose effects depend entirely on what's on screen at the given coordinates
Documented attack patterns abuse exactly the kind of access drag_mouse gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Computer Control MCP, and nothing reaches the server without passing your rules. This is the rule we recommend for drag_mouse:
{
"version": "1",
"default": "deny",
"tools": {
"drag_mouse": {
"limits": [
{
"counter": "drag_mouse_rate",
"window": "minute",
"max": 10,
"scope": "grant"
}
]
}
}
}drag_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.
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Drag the mouse from one position to another. Args: from_x: Starting X coordinate from_y: Starting Y coordinate to_x: Ending X coordinate to_y: Ending Y coordinate duration: Duration of the drag in seconds (default: 0.5) Returns: Success or error message. It is categorised as a Execute tool in the Computer Control MCP MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.
Register the Computer Control MCP server in PolicyLayer and add a rule for drag_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 Computer Control MCP. Nothing to install.
drag_mouse is a Execute tool with high risk. Execute tools should be rate-limited and have argument validation enabled.
Yes. Add a rate_limit block to the drag_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.
Set action: deny in the PolicyLayer policy for drag_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.
drag_mouse is provided by the Computer Control MCP server (ab498/computer-control-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 15 Computer Control MCP tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
Free to start. No card required.
15 Computer Control MCP tools catalogued and risk-classified — across an index of 42,500+ MCP servers.