create_ghost_tag · Ghost MCP Server MCP: Risk & Policy

WHAT IT DOES

What create_ghost_tag does on Ghost MCP Server

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

WHY IT NEEDS A POLICY

Why create_ghost_tag needs a policy

This tool creates new tags, which is a reversible write operation. Tags can be deleted or modified later. The blast radius is low because creating tags does not affect existing content, user data, or financial systems. It is clearly Write rather than Execute (no code execution), Destructive (creation is reversible), or Financial (no money involved).

From the tool's definition Tool name 'create_ghost_tag' and description 'Creates a new tag in Ghost blog' indicate creation of new data.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

create_ghost_tag Rate-limited

create_ghost_tag 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_ghost_tag": {
      "limits": [
        {
          "counter": "create_ghost_tag_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 Ghost MCP Server, so you can run agents against it safely.

FAQ

Questions about create_ghost_tag

What does the create_ghost_tag tool do? +

Creates a new tag in Ghost blog. It is categorised as a Write tool in the Ghost 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 create_ghost_tag? +

Register the Ghost MCP Server MCP server in PolicyLayer and add a rule for create_ghost_tag: 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 Ghost MCP Server. Nothing to install.

What risk level is create_ghost_tag? +

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

Can I rate-limit create_ghost_tag? +

Yes. Add a rate_limit block to the create_ghost_tag 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_ghost_tag completely? +

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

create_ghost_tag is provided by the Ghost MCP Server MCP server (oculairmedia/ghost-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.