swarm_execute_workflow · Mcp Swarm MCP: Risk & Policy

WHAT IT DOES

What swarm_execute_workflow does on Mcp Swarm

AI agents invoke swarm_execute_workflow to trigger actions in Mcp Swarm. 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 swarm_execute_workflow needs a policy

This tool triggers execution of multi-step workflows whose side effects depend entirely on the workflow definition supplied. It is not a simple read operation (no data retrieval stated), not reversible writes (workflows can modify system state in complex ways), and critically, it permits execution of external operations via workflow orchestration.

From the tool's definition Tool name 'swarm_execute_workflow' combined with description stating it 'executes a multi-step workflow' (执行一个多步骤的工作流).

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

swarm_execute_workflow Rate-limited

swarm_execute_workflow 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": {
    "swarm_execute_workflow": {
      "limits": [
        {
          "counter": "swarm_execute_workflow_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 Mcp Swarm, so you can run agents against it safely.

FAQ

Questions about swarm_execute_workflow

What does the swarm_execute_workflow tool do? +

执行一个多步骤的工作流。支持内置工作流或自定义工作流定义。. It is categorised as a Execute tool in the Mcp Swarm MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.

How do I enforce a policy on swarm_execute_workflow? +

Register the Mcp Swarm MCP server in PolicyLayer and add a rule for swarm_execute_workflow: 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 Mcp Swarm. Nothing to install.

What risk level is swarm_execute_workflow? +

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

Can I rate-limit swarm_execute_workflow? +

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

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

swarm_execute_workflow is provided by the Mcp Swarm MCP server (moselu/mcp-swarm). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.