batch_stop_instances · MCSManager MCP Server MCP

WHAT IT DOES

What batch_stop_instances does on MCSManager MCP Server

AI agents invoke batch_stop_instances to trigger actions in MCSManager MCP Server. 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 batch_stop_instances needs a policy

batch_stop_instances triggers real processes with real consequences. An agent gone sideways doesn't fire it once — it starts dozens of builds, sends mass notifications, or burns through compute before anyone looks up.

Risk signalsBulk/mass operation — affects multiple targets

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

batch_stop_instances Rate-limited

batch_stop_instances 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": {
    "batch_stop_instances": {
      "limits": [
        {
          "counter": "batch_stop_instances_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 MCSManager MCP Server, so you can run agents against it safely.

FAQ

Questions about batch_stop_instances

What does the batch_stop_instances tool do? +

Stop multiple instances at once. It is categorised as a Execute tool in the MCSManager MCP Server MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.

How do I enforce a policy on batch_stop_instances? +

Register the MCSManager MCP Server MCP server in PolicyLayer and add a rule for batch_stop_instances: 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 MCSManager MCP Server. Nothing to install.

What risk level is batch_stop_instances? +

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

Can I rate-limit batch_stop_instances? +

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

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

batch_stop_instances is provided by the MCSManager MCP Server MCP server (smgoro/mcsm-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.