generate_script_snippet · Uiautomation MCP: Risk & Policy

WHAT IT DOES

What generate_script_snippet does on Uiautomation

AI agents invoke generate_script_snippet to trigger actions in Uiautomation. 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 generate_script_snippet needs a policy

The server description explicitly states it generates Python automation scripts. While 'generate' might just produce code text (Write/Read), in the context of a UI automation server with tools like perform_action, click, and typing, generated scripts are likely executable automation code. The name suggests script generation which could lead to code execution.

From the tool's definition Tool name 'generate_script_snippet' on a server that generates Python automation scripts for Windows desktop UI automation

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

generate_script_snippet Rate-limited

generate_script_snippet 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": {
    "generate_script_snippet": {
      "limits": [
        {
          "counter": "generate_script_snippet_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 Uiautomation, so you can run agents against it safely.

FAQ

Questions about generate_script_snippet

What does the generate_script_snippet tool do? +

generate_script_snippet. It is categorised as a Execute tool in the Uiautomation MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.

How do I enforce a policy on generate_script_snippet? +

Register the Uiautomation MCP server in PolicyLayer and add a rule for generate_script_snippet: 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 Uiautomation. Nothing to install.

What risk level is generate_script_snippet? +

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

Can I rate-limit generate_script_snippet? +

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

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

generate_script_snippet is provided by the Uiautomation MCP server (miloira/uiautomation-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.