create_page_tool · MCP Mediawiki MCP: Risk & Policy

WHAT IT DOES

What create_page_tool does on MCP Mediawiki

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

WHY IT NEEDS A POLICY

Why create_page_tool needs a policy

This tool creates new wiki pages, which is a reversible modification of data. It falls under Write category rather than Destructive because page creation can be undone (pages can be deleted). The severity is medium because malicious use could flood the wiki with spam or misinformation, but the impact is not immediately irreversible and the authentication requirement provides some protection.

From the tool's definition Tool name 'create_page_tool' and description 'Create a new wiki page' indicate data creation. The 'Requires authentication' note suggests controlled access but does not prevent the creation action itself.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

create_page_tool Rate-limited

create_page_tool 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": {
    "create_page_tool": {
      "limits": [
        {
          "counter": "create_page_tool_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 Mediawiki, so you can run agents against it safely.

FAQ

Questions about create_page_tool

What does the create_page_tool tool do? +

Create a new wiki page. Requires authentication. It is categorised as a Write tool in the MCP Mediawiki MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on create_page_tool? +

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

What risk level is create_page_tool? +

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

Can I rate-limit create_page_tool? +

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

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

create_page_tool is provided by the MCP Mediawiki MCP server (mcp-mediawiki-crunchtools). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.