Calculate network information from an IP address and subnet mask.
AI agents call calculate_subnet_from_mask to retrieve information from Subnet Calculator without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool takes input parameters (IP address and subnet mask) and returns calculated network information such as network address, broadcast address, and host range. It is a stateless computation with no side effects, no data modification, no code execution on external systems, and no irreversible actions.
From the tool's definition Tool performs 'Calculate network information from an IP address and subnet mask' - a pure computation that retrieves/queries derived network data without modifying any state.
Attacks that exploit this kind of access
Calculate network information from an IP address and subnet mask. It is categorised as a Read tool in the Subnet Calculator MCP Server, which means it retrieves data without modifying state.
Register the Subnet Calculator MCP server in PolicyLayer and add a rule for calculate_subnet_from_mask: 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 Subnet Calculator. Nothing to install.
calculate_subnet_from_mask 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 calculate_subnet_from_mask 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 calculate_subnet_from_mask. 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.
calculate_subnet_from_mask is provided by the Subnet Calculator MCP server (sanjayshreeyans/subnet-calculator-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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