create_tweet · Twitter MCP Server MCP: Risk & Policy

WHAT IT DOES

What create_tweet does on Twitter MCP Server

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

WHY IT NEEDS A POLICY

Why create_tweet needs a policy

This tool creates new content on a public social media platform, which is reversible (tweets can be deleted) but represents a Write action. Severity is high because an AI agent could post misleading information, spam, impersonation content, or sensitive material to a potentially large audience, causing reputational or social harm.

From the tool's definition Tool name 'create_tweet' and description 'Create a tweet (supports optional images)' explicitly indicates creation of new content on Twitter/X platform.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

create_tweet Rate-limited

create_tweet 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_tweet": {
      "limits": [
        {
          "counter": "create_tweet_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 Twitter MCP Server, so you can run agents against it safely.

FAQ

Questions about create_tweet

What does the create_tweet tool do? +

Create a tweet (supports optional images). It is categorised as a Write tool in the Twitter 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_tweet? +

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

What risk level is create_tweet? +

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

Can I rate-limit create_tweet? +

Yes. Add a rate_limit block to the create_tweet 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_tweet completely? +

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

create_tweet is provided by the Twitter MCP Server MCP server (vinod827/mcp-twitter). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.