claude_senator_send_message · Claude Senator MCP

WHAT IT DOES

What claude_senator_send_message does on Claude Senator

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

WHY IT NEEDS A POLICY

Why claude_senator_send_message needs a policy

This tool creates/modifies communication state by sending a message to another Claude instance. It is reversible (messages can be ignored, deleted, or overwritten in subsequent exchanges) and does not directly execute code, delete data, or move funds.

From the tool's definition Tool name 'claude_senator_send_message' and description 'Send message to specific Claude instance' indicate creation/transmission of a message to another AI agent.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

claude_senator_send_message Rate-limited

claude_senator_send_message 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": {
    "claude_senator_send_message": {
      "limits": [
        {
          "counter": "claude_senator_send_message_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 Claude Senator, so you can run agents against it safely.

FAQ

Questions about claude_senator_send_message

What does the claude_senator_send_message tool do? +

Send message to specific Claude instance. It is categorised as a Write tool in the Claude Senator MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on claude_senator_send_message? +

Register the Claude Senator MCP server in PolicyLayer and add a rule for claude_senator_send_message: 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 Claude Senator. Nothing to install.

What risk level is claude_senator_send_message? +

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

Can I rate-limit claude_senator_send_message? +

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

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

claude_senator_send_message is provided by the Claude Senator MCP server (vvkmnn/claude-senator-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.