edit_page_tool · MCP Mediawiki MCP: Risk & Policy

WHAT IT DOES

What edit_page_tool does on MCP Mediawiki

AI agents use edit_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 edit_page_tool needs a policy

Editing a wiki page modifies content reversibly—changes can be undone through wiki history/reversion. This is a classic Write operation: it creates or modifies data without permanently destroying it.

From the tool's definition Tool name 'edit_page_tool' and description 'Edit an existing wiki page' clearly indicate modification of existing data. The requirement for authentication demonstrates awareness of potential misuse.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

edit_page_tool Rate-limited

edit_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": {
    "edit_page_tool": {
      "limits": [
        {
          "counter": "edit_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 edit_page_tool

What does the edit_page_tool tool do? +

Edit an existing 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 edit_page_tool? +

Register the MCP Mediawiki MCP server in PolicyLayer and add a rule for edit_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 edit_page_tool? +

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

Can I rate-limit edit_page_tool? +

Yes. Add a rate_limit block to the edit_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 edit_page_tool completely? +

Set action: deny in the PolicyLayer policy for edit_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 edit_page_tool? +

edit_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.