search_health_records_duckdb
AI agents call search_health_records_duckdb to retrieve information from Apple Health 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 health records from Apple Health data through DuckDB. It has no side effects on the data itself—it queries existing health information. While the sensitivity of health data is high, the tool itself performs a read operation. Severity is high due to the sensitive nature of health information (PHI/PII), but the category is Read because it does not modify, delete, or execute arbitrary code.
From the tool's definition Tool name includes 'search' and 'health_records', and the server description states it enables users to 'query, analyze, and manage health records through natural language commands.' Sibling tools like 'get_health_summary' and 'get_statistics_by_type' are…
Attacks that exploit this kind of access
search_health_records_duckdb. It is categorised as a Read tool in the Apple Health MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Apple Health MCP Server MCP server in PolicyLayer and add a rule for search_health_records_duckdb: 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 Apple Health MCP Server. Nothing to install.
search_health_records_duckdb 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_health_records_duckdb 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_health_records_duckdb. 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_health_records_duckdb is provided by the Apple Health MCP Server MCP server (the-momentum/apple-health-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.