Add two numbers.
AI agents call addition to retrieve information from FastMCP Tools Calculator without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool performs a pure mathematical computation (addition of two numbers) with no side effects, no data storage, no external calls, and no destructive actions. It simply reads two inputs and returns their sum, analogous to a query or fetch operation.
From the tool's definition Tool name: 'addition'; description: 'Add two numbers.'
Attacks that exploit this kind of access
Add two numbers. It is categorised as a Read tool in the FastMCP Tools Calculator MCP Server, which means it retrieves data without modifying state.
Register the FastMCP Tools Calculator MCP server in PolicyLayer and add a rule for addition: 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 FastMCP Tools Calculator. Nothing to install.
addition is a Read tool with low risk. Read-only tools are generally safe to allow by default.
Yes. Add a rate_limit block to the addition 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.
Set action: deny in the PolicyLayer policy for addition. 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.
addition is provided by the FastMCP Tools Calculator MCP server (sriharsha-inthub/mcp-applications). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Every MCP server has a record like this.
Type a name, get the same breakdown: verified identity, auth posture, risk grade, capabilities, recommended policy.
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