Get the full hierarchical path from root to a specific HPO term
AI agents call get_hpo_term_path 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 performs pure data retrieval (Get operation) without modifying, deleting, executing code, or moving financial resources. It queries an ontology hierarchy to return structural information. The blast radius of misuse is minimal—an agent could only retrieve information that is already public. This is classified as a Read operation with low severity.
From the tool's definition Tool retrieves 'the full hierarchical path from root to a specific HPO term' - a read-only query operation with no modification or side effects. The HPO API is a reference ontology for genetic research, and path retrieval is a standard lookup function.
Risk signalsAdmin/system-level operation
Attacks that exploit this kind of access
Get the full hierarchical path from root to a specific HPO term. 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_path: 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_path 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_path 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_path. 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_path 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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