execute-ui-tests · Mcp Playwright Test MCP: Risk & Policy

WHAT IT DOES

What execute-ui-tests does on Mcp Playwright Test

AI agents invoke execute-ui-tests to trigger actions in Mcp Playwright Test. 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 execute-ui-tests needs a policy

The tool executes UI tests via Playwright automation, which triggers external browser actions and operations whose effects depend on test case arguments. This is Execute category due to the runtime code execution and browser control capabilities. Severity is high because uncontrolled execution could modify application state, trigger unintended workflows, or cause side effects depending on the test cases executed.

From the tool's definition Tool name 'execute-ui-tests' combined with server description stating it 'automates Playwright-based UI and API testing' and 'execution with detailed reports.' Sibling tools include 'execute-api-tests' and 'launch-browser,' confirming this server performs…

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

execute-ui-tests Rate-limited

execute-ui-tests 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": {
    "execute-ui-tests": {
      "limits": [
        {
          "counter": "execute-ui-tests_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 Mcp Playwright Test, so you can run agents against it safely.

FAQ

Questions about execute-ui-tests

What does the execute-ui-tests tool do? +

execute-ui-tests. It is categorised as a Execute tool in the Mcp Playwright Test MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.

How do I enforce a policy on execute-ui-tests? +

Register the Mcp Playwright Test MCP server in PolicyLayer and add a rule for execute-ui-tests: 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 Mcp Playwright Test. Nothing to install.

What risk level is execute-ui-tests? +

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

Can I rate-limit execute-ui-tests? +

Yes. Add a rate_limit block to the execute-ui-tests 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 execute-ui-tests completely? +

Set action: deny in the PolicyLayer policy for execute-ui-tests. 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 execute-ui-tests? +

execute-ui-tests is provided by the Mcp Playwright Test MCP server (w1561778301/mcp-playwright-test). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.