get_health_summary_ch
AI agents call get_health_summary_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 queries Apple Health data without modifying or deleting it. While the description is empty, the naming convention and sibling tools strongly indicate a read operation that queries health summaries. The severity is medium because health data is sensitive personal information; unauthorized access could expose medical records, medication history, conditions, and other private health details.
From the tool's definition Tool name 'get_health_summary_ch' follows the pattern of sibling tools like 'get_health_summary_duckdb' and 'get_health_summary_es', all of which are read-only retrieval operations ('get_').
Attacks that exploit this kind of access
get_health_summary_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_health_summary_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_health_summary_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_health_summary_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_health_summary_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_health_summary_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.