fibonacci_numbers · Math MCP Server for MacOS MCP

WHAT IT DOES

What fibonacci_numbers does on Math MCP Server for MacOS

AI agents call fibonacci_numbers to retrieve information from Math MCP Server for MacOS without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

WHY IT NEEDS A POLICY

Why fibonacci_numbers needs a policy

This tool purely computes and returns a mathematical sequence (Fibonacci numbers) with no side effects, no data modification, and no external operations. It is a read/query-only computation.

From the tool's definition Return the first n Fibonacci Numbers

Attacks that exploit this kind of access

Questions about fibonacci_numbers

What does the fibonacci_numbers tool do? +

Return the first n Fibonacci Numbers. It is categorised as a Read tool in the Math MCP Server for MacOS MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on fibonacci_numbers? +

Register the Math MCP Server for MacOS MCP server in PolicyLayer and add a rule for fibonacci_numbers: 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 Math MCP Server for MacOS. Nothing to install.

What risk level is fibonacci_numbers? +

fibonacci_numbers is a Read tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit fibonacci_numbers? +

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

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

fibonacci_numbers is provided by the Math MCP Server for MacOS MCP server (rohinigaonkar/mcp-math-macos). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.