update_user · mcp-wordpress-instaWP MCP: Risk & Policy

WHAT IT DOES

What update_user does on mcp-wordpress-instaWP

AI agents use update_user to create or update resources in mcp-wordpress-instaWP — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your mcp-wordpress-instaWP environment.

WHY IT NEEDS A POLICY

Why update_user needs a policy

This tool creates or modifies data reversibly—a core Write operation. It ranks as 'high' severity because updating users can alter access permissions, roles, and sensitive metadata; a compromised agent could escalate privileges, modify admin accounts, or change user credentials.

From the tool's definition Tool name 'update_user' and description 'Updates an existing user' indicate modification of user data without permanent deletion. On a WordPress site, this includes reversible changes to user profiles, roles, permissions, and metadata.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

update_user Rate-limited

update_user 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": {
    "update_user": {
      "limits": [
        {
          "counter": "update_user_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-wordpress-instaWP, so you can run agents against it safely.

FAQ

Questions about update_user

What does the update_user tool do? +

Updates an existing user. It is categorised as a Write tool in the mcp-wordpress-instaWP MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on update_user? +

Register the mcp-wordpress-instaWP MCP server in PolicyLayer and add a rule for update_user: 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-wordpress-instaWP. Nothing to install.

What risk level is update_user? +

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

Can I rate-limit update_user? +

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

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

update_user is provided by the mcp-wordpress-instaWP MCP server (pace8/mcp-wordpress). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.