type_text · MCP Connect MCP: Risk & Policy

WHAT IT DOES

What type_text does on MCP Connect

AI agents use type_text to create or update resources in MCP Connect — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your MCP Connect environment.

WHY IT NEEDS A POLICY

Why type_text needs a policy

This tool creates or modifies data in input fields reversibly. While it could be chained with other tools to cause harm (e.g., typing into a payment form), the tool itself is a Write operation that modifies UI state without permanent consequences unless combined with form submission.

From the tool's definition Tool name 'type_text' and description 'Type text into input field' indicate modification of input field content. Context includes DOM interaction capabilities via Puppeteer for browser automation and iOS Simulator control.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

type_text Rate-limited

type_text stays usable, but capped — an agent stuck in a loop can't make hundreds of changes a minute. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "type_text": {
      "limits": [
        {
          "counter": "type_text_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

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 Connect, so you can run agents against it safely.

FAQ

Questions about type_text

What does the type_text tool do? +

Type text into input field. It is categorised as a Write tool in the MCP Connect MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on type_text? +

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

What risk level is type_text? +

type_text is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.

Can I rate-limit type_text? +

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

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

type_text is provided by the MCP Connect MCP server (plaintest/mcp-connect). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.