get_statistics_by_type_ch
AI agents call get_statistics_by_type_ch 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 computes statistics from Apple Health data without modifying or deleting records. The 'get_' prefix and naming consistency with other statistical/summary retrieval tools on the server indicate a read-only operation. However, confidence is moderate (0.72) because the tool description is empty, preventing direct confirmation of its exact behavior.
From the tool's definition Tool name 'get_statistics_by_type_ch' indicates a retrieval operation ('get'); sibling tools like 'get_health_summary_*', 'get_trend_data_*', and 'get_xml_by_type' are all read-only query operations on Apple Health data.
Attacks that exploit this kind of access
get_statistics_by_type_ch. 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_ch: 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_ch 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_ch 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_ch. 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_ch 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.