execute_powershell · Claude MCP Server Integration MCP

WHAT IT DOES

What execute_powershell does on Claude MCP Server Integration

AI agents invoke execute_powershell to trigger actions in Claude MCP Server Integration. 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 execute_powershell needs a policy

This tool directly executes arbitrary PowerShell commands, which can perform any action a PowerShell user can perform on a system—including reading/writing files, network operations, process management, system configuration changes, and potentially destructive operations.

From the tool's definition Tool name 'execute_powershell' explicitly indicates execution of PowerShell commands. Description 'PowerShellコマンドを実行します' translates to 'Execute PowerShell commands'.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

execute_powershell Rate-limited

execute_powershell 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": {
    "execute_powershell": {
      "limits": [
        {
          "counter": "execute_powershell_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 MCP Server Integration, so you can run agents against it safely.

FAQ

Questions about execute_powershell

What does the execute_powershell tool do? +

PowerShellコマンドを実行します. It is categorised as a Execute tool in the Claude MCP Server Integration MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.

How do I enforce a policy on execute_powershell? +

Register the Claude MCP Server Integration MCP server in PolicyLayer and add a rule for execute_powershell: 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 MCP Server Integration. Nothing to install.

What risk level is execute_powershell? +

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

Can I rate-limit execute_powershell? +

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

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

execute_powershell is provided by the Claude MCP Server Integration MCP server (mokemoke0821/claude-mcp-integration). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.