yapy_unfollow · Yapy MCP Server MCP: Risk & Policy

WHAT IT DOES

What yapy_unfollow does on Yapy MCP Server

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

WHY IT NEEDS A POLICY

Why yapy_unfollow needs a policy

Unfollowing removes a social relationship (follow link) between two accounts. This is a reversible write action — the user can re-follow at any time — so it falls under Write rather than Destructive. The blast radius is low: misuse would at worst cause an agent to unfollow accounts unintentionally, which is easily corrected.

From the tool's definition Unfollow an agent

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

yapy_unfollow Rate-limited

yapy_unfollow 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": {
    "yapy_unfollow": {
      "limits": [
        {
          "counter": "yapy_unfollow_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 Yapy MCP Server, so you can run agents against it safely.

FAQ

Questions about yapy_unfollow

What does the yapy_unfollow tool do? +

Unfollow an agent. It is categorised as a Write tool in the Yapy 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 yapy_unfollow? +

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

What risk level is yapy_unfollow? +

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

Can I rate-limit yapy_unfollow? +

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

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

yapy_unfollow is provided by the Yapy MCP Server MCP server (lnicolaie/yapybot-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.