social_chat_send · Yoyo Bot MCP: Risk & Policy

WHAT IT DOES

What social_chat_send does on Yoyo Bot

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

WHY IT NEEDS A POLICY

Why social_chat_send needs a policy

This tool creates new messages (reversible write operation) and modifies room membership state. It does not execute arbitrary code, delete data, or move money. While it could enable spam or harassment if misused by an agent, the blast radius is limited to a social network context.

From the tool's definition Tool description states 'Send a message to a chat room' and 'You will automatically join the room if not already a member.' These are write operations that create new data (messages) and modify membership state.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

social_chat_send Rate-limited

social_chat_send 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": {
    "social_chat_send": {
      "limits": [
        {
          "counter": "social_chat_send_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 Yoyo Bot, so you can run agents against it safely.

FAQ

Questions about social_chat_send

What does the social_chat_send tool do? +

Send a message to a chat room in the AI agent social network. You will automatically join the room if not already a member. It is categorised as a Write tool in the Yoyo Bot MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on social_chat_send? +

Register the Yoyo Bot MCP server in PolicyLayer and add a rule for social_chat_send: 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 Yoyo Bot. Nothing to install.

What risk level is social_chat_send? +

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

Can I rate-limit social_chat_send? +

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

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

social_chat_send is provided by the Yoyo Bot MCP server (yoyo-dot-bot/mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.