A tool to calculate the quartiles (Q1, Q2, Q3) of a collection
AI agents call quartiles_calculator to retrieve information from JeffersonStats 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 read-only statistical calculation on provided data. It computes quartile values—a descriptive statistic—without creating, modifying, deleting, or executing any external operations. The input is data to analyze, and the output is calculated quartile values. No data is altered, no code is executed, and no side effects occur.
From the tool's definition Tool name 'quartiles_calculator' and description 'calculate the quartiles (Q1, Q2, Q3) of a collection' indicate a statistical computation that retrieves and analyzes data without modification or side effects.
Attacks that exploit this kind of access
A tool to calculate the quartiles (Q1, Q2, Q3) of a collection. It is categorised as a Read tool in the JeffersonStats MCP Server, which means it retrieves data without modifying state.
Register the JeffersonStats MCP server in PolicyLayer and add a rule for quartiles_calculator: 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 JeffersonStats. Nothing to install.
quartiles_calculator 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 quartiles_calculator 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 quartiles_calculator. 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.
quartiles_calculator is provided by the JeffersonStats MCP server (sharabhshukla/jeffersonstatsmcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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