insertText · Cloudflare Remote MCP Server MCP: Risk & Policy

WHAT IT DOES

What insertText does on Cloudflare Remote MCP Server

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

WHY IT NEEDS A POLICY

Why insertText needs a policy

'insertText' performs reversible data modification—inserting text into documents. This is a Write operation rather than Read (which the sibling tools handle), Destructive (no deletion), or Execute (no code execution indicated).

From the tool's definition Tool name 'insertText' indicates text insertion/modification capability. Combined with sibling tools (listDocuments, readDocument, search) that suggest document management, this tool likely creates or modifies document content.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

insertText Rate-limited

insertText 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": {
    "insertText": {
      "limits": [
        {
          "counter": "inserttext_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 Cloudflare Remote MCP Server, so you can run agents against it safely.

FAQ

Questions about insertText

What does the insertText tool do? +

insertText. It is categorised as a Write tool in the Cloudflare Remote MCP Server MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on insertText? +

Register the Cloudflare Remote MCP Server MCP server in PolicyLayer and add a rule for insertText: 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 Cloudflare Remote MCP Server. Nothing to install.

What risk level is insertText? +

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

Can I rate-limit insertText? +

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

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

insertText is provided by the Cloudflare Remote MCP Server MCP server (phkus/craft-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.