create_post · Blogger MCP: Risk & Policy

WHAT IT DOES

What create_post does on Blogger

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

WHY IT NEEDS A POLICY

Why create_post needs a policy

The tool creates new content (a blog post) which is a Write operation. Severity is medium because while the action is reversible (posts can be deleted via delete_post), it allows an AI agent to create potentially unwanted or misleading content on a live blog.

From the tool's definition Tool description states 'Create a new blog post' with ability to save as draft or publish. This is a reversible creation operation.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

create_post Rate-limited

create_post 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_post": {
      "limits": [
        {
          "counter": "create_post_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 Blogger, so you can run agents against it safely.

FAQ

Questions about create_post

What does the create_post tool do? +

Create a new blog post. Content is HTML; labels is a list of tags. isDraft=true saves as draft. It is categorised as a Write tool in the Blogger 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_post? +

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

What risk level is create_post? +

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

Can I rate-limit create_post? +

Yes. Add a rate_limit block to the create_post 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_post completely? +

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

create_post is provided by the Blogger MCP server (mech12/blogger-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

// THE FULL RECORD

create_post is one line of Blogger's registry record.

The record carries the whole server: verified identity, auth posture, risk grade, every tool classified, recommended policy — re-checked continuously.

Teams ship this data inside their own products. See what a licence covers →