Search for HPO terms by keyword, ID, or synonym. Supports pagination and filtering.
AI agents call search_hpo_terms 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 HPO (Human Phenotype Ontology) term data based on search parameters. It performs a query operation that returns matching terms without creating, modifying, deleting, or executing any operations. All sibling tools on this server (batch_get, compare, get_all, get_ancestors, etc.) are similarly Read operations.
From the tool's definition Tool description states it "Search[es] for HPO terms by keyword, ID, or synonym. Supports pagination and filtering." The verb 'search' and the read-only nature of keyword/ID/synonym lookup with pagination indicate data retrieval with no modifications or side…
Attacks that exploit this kind of access
Search for HPO terms by keyword, ID, or synonym. Supports pagination and filtering. 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 search_hpo_terms: 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.
search_hpo_terms 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 search_hpo_terms 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 search_hpo_terms. 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.
search_hpo_terms 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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