Divide two numbers & get the reminder.
AI agents call reminder 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 is a pure computational tool that retrieves the result of a mathematical operation. It does not create, modify, delete, or execute any external code. No data is persisted or altered. Matches the Read category pattern of computation with no side effects. Low severity because misuse (incorrect math) has no harmful blast radius.
From the tool's definition Tool performs mathematical calculation (division and remainder operation) on two input numbers. Description states 'Divide two numbers & get the reminder' with no side effects, state changes, or external operations.
Attacks that exploit this kind of access
Divide two numbers & get the reminder. 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 reminder: 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.
reminder 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 reminder 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 reminder. 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.
reminder 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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