compound_interest · Axiom Calculator MCP: Risk & Policy

WHAT IT DOES

What compound_interest does on Axiom Calculator

AI agents use compound_interest to create or update resources in Axiom Calculator — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Axiom Calculator environment.

WHY IT NEEDS A POLICY

Why compound_interest needs a policy

An AI agent can call compound_interest faster than any human can review — one bad instruction and it creates or modifies resources in Axiom Calculator by the hundred, each call as confident as the last.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

compound_interest Rate-limited

compound_interest stays usable, but capped — an agent stuck in a loop can't make hundreds of changes a minute. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "compound_interest": {
      "limits": [
        {
          "counter": "compound_interest_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT THIS TOOL →

Instant setup, no code required.

PolicyLayer is an MCP gateway: every tool call is checked against your rule before it reaches Axiom Calculator, so you can run agents against it safely.

FAQ

Questions about compound_interest

What does the compound_interest tool do? +

compound_interest. It is categorised as a Write tool in the Axiom Calculator MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on compound_interest? +

Register the Axiom Calculator MCP server in PolicyLayer and add a rule for compound_interest: 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 Axiom Calculator. Nothing to install.

What risk level is compound_interest? +

compound_interest is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.

Can I rate-limit compound_interest? +

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

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

compound_interest is provided by the Axiom Calculator MCP server (vdalhambra/axiom-calculator-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.