repostPost · Xdevplatform/x MCP: Risk & Policy

WHAT IT DOES

What repostPost does on Xdevplatform/xmcp

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

WHY IT NEEDS A POLICY

Why repostPost needs a policy

The tool writes/creates new data (a repost action) that is reversible (the repost can be deleted). It does not execute arbitrary code, delete data irreversibly, move money, or merely read. The medium severity reflects that misuse could spam followers or amplify unwanted content, but the effect is limited to the authenticated user's account and reversible.

From the tool's definition Tool description states 'Repost a post on behalf of the authenticated user, sharing it with followers' — this creates a new action (reposting) that modifies the user's social graph and content feed.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

repostPost Rate-limited

repostPost 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": {
    "repostPost": {
      "limits": [
        {
          "counter": "repostpost_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 Xdevplatform/xmcp, so you can run agents against it safely.

FAQ

Questions about repostPost

What does the repostPost tool do? +

Repost a post on behalf of the authenticated user, sharing it with followers. It is categorised as a Write tool in the Xdevplatform/xmcp MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on repostPost? +

Register the Xdevplatform/x MCP server in PolicyLayer and add a rule for repostPost: 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 Xdevplatform/xmcp. Nothing to install.

What risk level is repostPost? +

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

Can I rate-limit repostPost? +

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

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

repostPost is provided by the Xdevplatform/x MCP server (xdevplatform/xmcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.