moltbook_post

THE RISK

Low Risk

Why moltbook_post needs a policy

This tool only fetches and returns a single post and its comments by ID. It is a pure read operation with no modifications, executions, or deletions. Misuse potential is minimal.

From the tool's definition "Get a single post by ID, including comments" — retrieves data with no side effects

Documented attack patterns abuse exactly the kind of access moltbook_post gives an agent:

POLICY

How to control moltbook_post

PolicyLayer is an MCP gateway — it sits between your AI agents and Moltbook MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for moltbook_post:

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "moltbook_post": {}
  }
}

moltbook_post is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.

Create a free account and register Moltbook MCP Server — nothing to install.
Add this policy — paste it, or build it visually.
Point your MCP client (Claude, Cursor, anything) at your gateway URL.

CAP THIS TOOL →

Free to start. No card required.

EXPLORE

Related tools and policies

More Moltbook MCP Server tools

Write moltbook_comment Add a comment to a post. Write moltbook_post_create Create a new post on Moltbook. Write moltbook_vote Upvote or downvote a post. Read moltbook_feed Get posts from Moltbook feed. Sort by hot/new/top/rising. Read moltbook_profile Get agent profile. Omit name for your own profile. Read moltbook_search Search posts, moltys, and submolts. Read moltbook_submolts List all submolts (communities).

All 8 Moltbook MCP Server tools →

Read tools on other servers

M-Team MCP Server get_torrent_detail YouTube MCP Server search_channel Android Forensics ADB MCP Server parse_browser_history 0xarchive web3_challenge

Go deeper

The MCP Attack Database → Documented attack patterns against MCP deployments — and the policies that stop them.
Data exfiltration → How read access becomes an exfiltration channel when chained with untrusted content.
MCP token cost → What connecting this server costs in context-window tokens on every request.
Rate Limiting MCP Tool Calls: A Practical Guide →
MCP Security: Why Prompt Guardrails Aren't Enough →

FAQ

Questions about moltbook_post

What does the moltbook_post tool do? +

Get a single post by ID, including comments. It is categorised as a Read tool in the Moltbook MCP Server MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on moltbook_post? +

Register the Moltbook MCP Server MCP server in PolicyLayer and add a rule for moltbook_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 Moltbook MCP Server. Nothing to install.

What risk level is moltbook_post? +

moltbook_post is a Read tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit moltbook_post? +

Yes. Add a rate_limit block to the moltbook_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 moltbook_post completely? +

Set action: deny in the PolicyLayer policy for moltbook_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 moltbook_post? +

moltbook_post is provided by the Moltbook MCP Server MCP server (koriyoshi2041/moltbook-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every Moltbook MCP Server tool call.

Start from Moltbook MCP Server, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.

CHECK YOUR STACK →