create_page_post · Claude Meta MCP: Risk & Policy

WHAT IT DOES

What create_page_post does on Claude Meta

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

WHY IT NEEDS A POLICY

Why create_page_post needs a policy

This tool creates new content on a Facebook Page, which is a reversible write operation. It does not delete data (would be Destructive), execute arbitrary code (would be Execute), or move money (would be Financial). The severity is medium because misuse could spam a Page with unwanted posts, damage reputation, or violate platform terms, but the operation itself is reversible through deletion.

From the tool's definition Tool description explicitly states 'WRITE OPERATION' and 'Create a new post on a Facebook Page.' It modifies data by creating a new post, with the ability to control publication status via the published parameter.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

create_page_post Rate-limited

create_page_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_page_post": {
      "limits": [
        {
          "counter": "create_page_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 Claude Meta, so you can run agents against it safely.

FAQ

Questions about create_page_post

What does the create_page_post tool do? +

Create a new post on a Facebook Page. WRITE OPERATION. Set published=false to create as an unpublished draft. Returns the new post ID. It is categorised as a Write tool in the Claude Meta 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_page_post? +

Register the Claude Meta MCP server in PolicyLayer and add a rule for create_page_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 Claude Meta. Nothing to install.

What risk level is create_page_post? +

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

Can I rate-limit create_page_post? +

Yes. Add a rate_limit block to the create_page_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_page_post completely? +

Set action: deny in the PolicyLayer policy for create_page_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_page_post? +

create_page_post is provided by the Claude Meta MCP server (maxx3250/claude-meta-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.