computer_left_click_drag · Computer Use MCP Server MCP

WHAT IT DOES

What computer_left_click_drag does on Computer Use MCP Server

AI agents invoke computer_left_click_drag to trigger actions in Computer Use MCP Server. 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.

WHY IT NEEDS A POLICY

Why computer_left_click_drag needs a policy

This tool executes a mouse drag action on a live desktop environment. Misuse could manipulate UI elements, move files, resize windows, or trigger arbitrary application behaviors depending on what is under the cursor. It is an interactive execution action rather than a simple read or reversible write.

From the tool's definition 'Click and drag from start coordinates to end coordinates' — performs an interactive desktop action (mouse drag) that triggers external operations on an X11 desktop

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

computer_left_click_drag Rate-limited

computer_left_click_drag 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": {
    "computer_left_click_drag": {
      "limits": [
        {
          "counter": "computer_left_click_drag_rate",
          "window": "minute",
          "max": 10,
          "scope": "grant"
        }
      ]
    }
  }
}

RATE-LIMIT THIS TOOL →

Instant setup, no code required.

PolicyLayer is an MCP gateway: every tool call is checked against your rule before it reaches Computer Use MCP Server, so you can run agents against it safely.

FAQ

Questions about computer_left_click_drag

What does the computer_left_click_drag tool do? +

Click and drag from start coordinates to end coordinates. It is categorised as a Execute tool in the Computer Use MCP Server MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.

How do I enforce a policy on computer_left_click_drag? +

Register the Computer Use MCP Server MCP server in PolicyLayer and add a rule for computer_left_click_drag: 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 Use MCP Server. Nothing to install.

What risk level is computer_left_click_drag? +

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

Can I rate-limit computer_left_click_drag? +

Yes. Add a rate_limit block to the computer_left_click_drag 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 computer_left_click_drag completely? +

Set action: deny in the PolicyLayer policy for computer_left_click_drag. 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 computer_left_click_drag? +

computer_left_click_drag is provided by the Computer Use MCP Server MCP server (sebastianbaltes/claude_code_computer_use_mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.