teammate_broadcast · Claude Flow MCP: Risk & Policy

WHAT IT DOES

What teammate_broadcast does on Claude Flow

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

WHY IT NEEDS A POLICY

Why teammate_broadcast needs a policy

This tool sends/posts a message to all members of a team, which is a Write operation (creating/delivering a communication artifact). It could have moderate blast radius if misused to send misleading or disruptive messages to an entire team, but it does not delete data or execute code. Severity is medium because broadcasting to all teammates amplifies any misuse across the whole group.

From the tool's definition 'Broadcast message to all teammates in a team' — sends a message outward to multiple recipients

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

teammate_broadcast Rate-limited

teammate_broadcast 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": {
    "teammate_broadcast": {
      "limits": [
        {
          "counter": "teammate_broadcast_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 Flow, so you can run agents against it safely.

FAQ

Questions about teammate_broadcast

What does the teammate_broadcast tool do? +

Broadcast message to all teammates in a team. It is categorised as a Write tool in the Claude Flow MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on teammate_broadcast? +

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

What risk level is teammate_broadcast? +

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

Can I rate-limit teammate_broadcast? +

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

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

teammate_broadcast is provided by the Claude Flow MCP server (claude-flow). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.