get_statistics_by_type_duckdb
AI agents call get_statistics_by_type_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 and queries health statistics without side effects. Although the description is empty, the naming pattern and sibling tools confirm it is a read operation. Severity is medium rather than low because health data is sensitive personal information; unauthorized read access could enable privacy violations or support social engineering attacks.
From the tool's definition Tool name 'get_statistics_by_type_duckdb' indicates retrieval of statistical data from health records via DuckDB.
Attacks that exploit this kind of access
get_statistics_by_type_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 get_statistics_by_type_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.
get_statistics_by_type_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 get_statistics_by_type_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 get_statistics_by_type_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.
get_statistics_by_type_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.