get_package_stats · PyPI MCP Server MCP: Risk & Policy

WHAT IT DOES

What get_package_stats does on PyPI MCP Server

AI agents call get_package_stats to retrieve information from PyPI MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

WHY IT NEEDS A POLICY

Why get_package_stats needs a policy

This tool retrieves statistics about packages from PyPI—a pure read operation with no side effects, no code execution, and no data modification. The blast radius of misuse is minimal; an AI agent querying package statistics poses negligible security risk. Low severity is appropriate for informational data access.

From the tool's definition Tool name 'get_package_stats' and server description indicating 'retrieve detailed metadata, version history, and download statistics' suggest data retrieval.

Attacks that exploit this kind of access

Questions about get_package_stats

What does the get_package_stats tool do? +

get_package_stats. It is categorised as a Read tool in the PyPI MCP Server MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on get_package_stats? +

Register the PyPI MCP Server MCP server in PolicyLayer and add a rule for get_package_stats: 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 PyPI MCP Server. Nothing to install.

What risk level is get_package_stats? +

get_package_stats is a Read tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit get_package_stats? +

Yes. Add a rate_limit block to the get_package_stats 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.

How do I block get_package_stats completely? +

Set action: deny in the PolicyLayer policy for get_package_stats. 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.

What MCP server provides get_package_stats? +

get_package_stats is provided by the PyPI MCP Server MCP server (jackkuo666/pypi-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.