calculator · Typescript Mcp Server Boilerplate MCP

WHAT IT DOES

What calculator does on Typescript Mcp Server Boilerplate

AI agents invoke calculator to trigger actions in Typescript Mcp Server Boilerplate. 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 calculator needs a policy

The tool executes computational operations (arithmetic calculations). While low risk, it runs logic based on user-provided arguments, placing it in Execute. The blast radius is minimal as it only performs basic math with no side effects on data or systems.

From the tool's definition '사칙연산(더하기, 빼기, 곱하기, 나누기)을 수행합니다' — performs arithmetic operations (addition, subtraction, multiplication, division)

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

calculator Rate-limited

calculator 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": {
    "calculator": {
      "limits": [
        {
          "counter": "calculator_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 Typescript Mcp Server Boilerplate, so you can run agents against it safely.

FAQ

Questions about calculator

What does the calculator tool do? +

사칙연산(더하기, 빼기, 곱하기, 나누기)을 수행합니다. It is categorised as a Execute tool in the Typescript Mcp Server Boilerplate MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.

How do I enforce a policy on calculator? +

Register the Typescript Mcp Server Boilerplate MCP server in PolicyLayer and add a rule for calculator: 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 Typescript Mcp Server Boilerplate. Nothing to install.

What risk level is calculator? +

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

Can I rate-limit calculator? +

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

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

calculator is provided by the Typescript Mcp Server Boilerplate MCP server (lhseokool/my-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.