AI agents call get_calculation_history to retrieve information from MCP Mathematics without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves historical data about past calculations. It has no side effects, does not modify any state, and does not execute new operations. It is a pure read operation that queries stored calculation records, making it a low-severity Read category tool.
From the tool's definition Tool name 'get_calculation_history' and description 'Get calculation history' indicate retrieval of previously stored calculation records. The verb 'get' and noun 'history' denote a query/read operation with no modifications.
Documented attack patterns abuse exactly the kind of access get_calculation_history gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and MCP Mathematics, and nothing reaches the server without passing your rules. This is the rule we recommend for get_calculation_history:
{
"version": "1",
"default": "deny",
"tools": {
"get_calculation_history": {}
}
}get_calculation_history is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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Get calculation history. It is categorised as a Read tool in the MCP Mathematics MCP Server, which means it retrieves data without modifying state.
Register the MCP Mathematics MCP server in PolicyLayer and add a rule for get_calculation_history: 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 MCP Mathematics. Nothing to install.
get_calculation_history 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 get_calculation_history 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 get_calculation_history. 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.
get_calculation_history is provided by the MCP Mathematics MCP server (shsharkar/mcp-mathematics). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from MCP Mathematics, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
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18 MCP Mathematics tools catalogued and risk-classified — across an index of 43,000+ MCP servers.