Get comprehensive statistics and analysis for an HPO term including hierarchy counts and properties
AI agents call get_hpo_term_stats to retrieve information from Unofficial HPO MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves and analyzes existing data from the HPO ontology (statistics, hierarchy counts, properties) with no side effects, data modification, or external operations. It is a read-only query operation typical of data retrieval tools used in research contexts.
From the tool's definition Tool name 'get_hpo_term_stats' and description 'Get comprehensive statistics and analysis for an HPO term including hierarchy counts and properties' indicate retrieval of analytical data without modification.
Attacks that exploit this kind of access
Get comprehensive statistics and analysis for an HPO term including hierarchy counts and properties. It is categorised as a Read tool in the Unofficial HPO MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Unofficial HPO MCP Server MCP server in PolicyLayer and add a rule for get_hpo_term_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 Unofficial HPO MCP Server. Nothing to install.
get_hpo_term_stats 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_hpo_term_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.
Set action: deny in the PolicyLayer policy for get_hpo_term_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.
get_hpo_term_stats is provided by the Unofficial HPO MCP Server MCP server (openpharma-org/hpo-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Every MCP server has a record like this.
Type a name, get the same breakdown: verified identity, auth posture, risk grade, capabilities, recommended policy.
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