mikey_math_crt · Mcp Math MCP: Risk & Policy

WHAT IT DOES

What mikey_math_crt does on Mcp Math

AI agents invoke mikey_math_crt to trigger actions in Mcp Math. 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 mikey_math_crt needs a policy

This tool performs a mathematical computation (solving a system of modular congruences using CRT), which involves executing an algorithm via SymPy. It has no side effects on external data, no financial implications, and is not destructive. It falls under Execute rather than Read because it actively computes/derives a result rather than retrieving stored data.

From the tool's definition Chinese Remainder Theorem: find x where x ≡ residues[i] (mod moduli[i])

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

mikey_math_crt Rate-limited

mikey_math_crt 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": {
    "mikey_math_crt": {
      "limits": [
        {
          "counter": "mikey_math_crt_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 Math, so you can run agents against it safely.

FAQ

Questions about mikey_math_crt

What does the mikey_math_crt tool do? +

Chinese Remainder Theorem: find x where x ≡ residues[i] (mod moduli[i]). It is categorised as a Execute tool in the Mcp Math MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.

How do I enforce a policy on mikey_math_crt? +

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

What risk level is mikey_math_crt? +

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

Can I rate-limit mikey_math_crt? +

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

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

mikey_math_crt is provided by the Mcp Math MCP server (mikeybeez/mcp-math). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.