get_latest_version · MCP Package Hero MCP: Risk & Policy

WHAT IT DOES

What get_latest_version does on MCP Package Hero

AI agents call get_latest_version to retrieve information from MCP Package Hero 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_latest_version needs a policy

This tool retrieves or queries package version data with no side effects—a classic Read operation. The lack of write, execute, or destructive capability is evident from the name and server's stated purpose of checking and rating packages. Blast radius is minimal: worst case, stale or incorrect version data is returned, causing lookup issues, not system compromise or data loss.

From the tool's definition Tool name 'get_latest_version' indicates retrieval of version information; server description states it 'checks package versions' across multiple ecosystems (PyPI, npm, pub.dev, crates.io); sibling tool 'get_latest_versions_batch' further confirms this is a…

Attacks that exploit this kind of access

Questions about get_latest_version

What does the get_latest_version tool do? +

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

How do I enforce a policy on get_latest_version? +

Register the MCP Package Hero MCP server in PolicyLayer and add a rule for get_latest_version: 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 Package Hero. Nothing to install.

What risk level is get_latest_version? +

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

Can I rate-limit get_latest_version? +

Yes. Add a rate_limit block to the get_latest_version 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_latest_version completely? +

Set action: deny in the PolicyLayer policy for get_latest_version. 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_latest_version? +

get_latest_version is provided by the MCP Package Hero MCP server (moinsen-dev/mcp-package-hero). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.