tweet.create · X MCP Server MCP: Risk & Policy

WHAT IT DOES

What tweet.create does on X MCP Server

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

WHY IT NEEDS A POLICY

Why tweet.create needs a policy

This tool creates new tweets, which is a reversible write operation (tweets can be deleted). The severity is medium because misuse could result in unwanted public posts, misinformation spread, or reputational damage, but the action is not destructive (tweets can be removed) and does not involve financial transactions. It affects the user's account and public content but is not irreversible.

From the tool's definition Tool name 'tweet.create' and description 'Create a new tweet' directly indicates creation of new content on X/Twitter platform.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

tweet.create Rate-limited

tweet.create 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": {
    "tweet.create": {
      "limits": [
        {
          "counter": "tweet.create_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 X MCP Server, so you can run agents against it safely.

FAQ

Questions about tweet.create

What does the tweet.create tool do? +

Create a new tweet. It is categorised as a Write tool in the X 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 tweet.create? +

Register the X MCP Server MCP server in PolicyLayer and add a rule for tweet.create: 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 X MCP Server. Nothing to install.

What risk level is tweet.create? +

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

Can I rate-limit tweet.create? +

Yes. Add a rate_limit block to the tweet.create 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 tweet.create completely? +

Set action: deny in the PolicyLayer policy for tweet.create. 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 tweet.create? +

tweet.create is provided by the X MCP Server MCP server (tomaitagaki/x-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.