postTweet · Remote MCP Server on Cloudflare MCP

WHAT IT DOES

What postTweet does on Remote MCP Server on Cloudflare

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

WHY IT NEEDS A POLICY

Why postTweet needs a policy

This tool creates (writes) new data in the form of a tweet on X/Twitter. It is reversible (tweets can be deleted), so it does not qualify as Destructive. It involves no financial transactions or code execution.

From the tool's definition Tool name is 'postTweet' and description states 'Post a new tweet on x.com' — this creates new content on a social media platform.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

postTweet Rate-limited

postTweet 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": {
    "postTweet": {
      "limits": [
        {
          "counter": "posttweet_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 Remote MCP Server on Cloudflare, so you can run agents against it safely.

FAQ

Questions about postTweet

What does the postTweet tool do? +

Post a new tweet on x.com. It is categorised as a Write tool in the Remote MCP Server on Cloudflare MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on postTweet? +

Register the Remote MCP Server on Cloudflare MCP server in PolicyLayer and add a rule for postTweet: 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 Remote MCP Server on Cloudflare. Nothing to install.

What risk level is postTweet? +

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

Can I rate-limit postTweet? +

Yes. Add a rate_limit block to the postTweet 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 postTweet completely? +

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

postTweet is provided by the Remote MCP Server on Cloudflare MCP server (yripper/x-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.