hive-mind_join · Claude Flow MCP: Risk & Policy

WHAT IT DOES

What hive-mind_join does on Claude Flow

AI agents invoke hive-mind_join to trigger actions in Claude Flow. What it does depends on the arguments the agent supplies, and its effects often reach beyond the immediate call — builds kicked off, notifications sent, workflows started.

WHY IT NEEDS A POLICY

Why hive-mind_join needs a policy

This tool triggers an external orchestration operation: it registers/connects an agent into a running hive-mind swarm, initiating consensus participation and shared-memory interactions across many worker agents. This is an active execution of a multi-agent coordination action, not a simple read or write.

From the tool's definition 'Join an agent to the hive-mind', 'queen-led collective intelligence — Byzantine-FT consensus, broadcast across many worker agents, shared memory with bounded conflict'

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

hive-mind_join Rate-limited

hive-mind_join stays usable, but rate-capped — a runaway agent can't fire it dozens of times a minute. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "hive-mind_join": {
      "limits": [
        {
          "counter": "hive-mind_join_rate",
          "window": "minute",
          "max": 10,
          "scope": "grant"
        }
      ]
    }
  }
}

RATE-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 hive-mind_join

What does the hive-mind_join tool do? +

Join an agent to the hive-mind Use when native Task is wrong because you need queen-led collective intelligence — Byzantine-FT consensus, broadcast across many worker agents, shared memory with bounded conflict. For a single subagent, native Task is fine. Pair with swarm_init first to set topology. It is categorised as a Execute tool in the Claude Flow MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.

How do I enforce a policy on hive-mind_join? +

Register the Claude Flow MCP server in PolicyLayer and add a rule for hive-mind_join: 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 hive-mind_join? +

hive-mind_join is a Execute tool with high risk. Execute tools should be rate-limited and have argument validation enabled.

Can I rate-limit hive-mind_join? +

Yes. Add a rate_limit block to the hive-mind_join 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 hive-mind_join completely? +

Set action: deny in the PolicyLayer policy for hive-mind_join. 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 hive-mind_join? +

hive-mind_join 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.