fields_update_definition

Replace a definition as a whole: omitted keys fall back to the kind

SERVERWordpress SOURCE@cavort-it-systems/wordpress-mcp

Medium RISK CLASS

Category Write

Parameters 00 required

Recommended Rate-limitedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/io-github-cvrt-jh-wordpress-mcp/fields-update-definition.md

WHAT IT DOES

What fields_update_definition does on Wordpress

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

RISK

Why fields_update_definition is rated Medium

Modifies field definitions with potential cascading effects on related data structures.

From the tool's definition Replace a definition as a whole; omitted keys fall back

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs fields_update_definition safely

PolicyLayer is an MCP gateway: it sits between your AI agents and Wordpress, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For fields_update_definition, this is the rule to start with:

fields_update_definition Rate-limited

fields_update_definition 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": {
    "fields_update_definition": {
      "limits": [
        {
          "counter": "fields_update_definition_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect Wordpress, apply this rule, and every fields_update_definition call is checked against it from then on.

FAQ

Questions about fields_update_definition

What does the fields_update_definition tool do? +

Replace a definition as a whole: omitted keys fall back to the kind. It is categorised as a Write tool in the Wordpress MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on fields_update_definition? +

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

What risk level is fields_update_definition? +

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

Can I rate-limit fields_update_definition? +

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

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

fields_update_definition is provided by the Wordpress MCP server (@cavort-it-systems/wordpress-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

KEEP EXPLORING

More on Wordpress, and thousands of servers like it.

This server

All 314 Wordpress tools →

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aroflo_create_or_update_record on AroFlo MCP → The MCP Attack Database →

Guides

Govern customer-ops agents →Argument validation →Scoped token →