search_values_duckdb · Apple Health MCP Server MCP

WHAT IT DOES

What search_values_duckdb does on Apple Health MCP Server

AI agents call search_values_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.

WHY IT NEEDS A POLICY

Why search_values_duckdb needs a policy

The tool searches and retrieves health data without side effects. While the description is empty (reducing confidence), the name and context of sibling read-only tools on an Apple Health server indicate this performs data retrieval.

From the tool's definition Tool name 'search_values_duckdb' indicates a query/search operation against health data stored in DuckDB. Sibling tools like 'get_health_summary_*', 'get_statistics_by_type_*', and 'get_trend_data_*' are all read operations that retrieve health data.

Attacks that exploit this kind of access

Questions about search_values_duckdb

What does the search_values_duckdb tool do? +

search_values_duckdb. It is categorised as a Read tool in the Apple Health MCP Server MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on search_values_duckdb? +

Register the Apple Health MCP Server MCP server in PolicyLayer and add a rule for search_values_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.

What risk level is search_values_duckdb? +

search_values_duckdb is a Read tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit search_values_duckdb? +

Yes. Add a rate_limit block to the search_values_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.

How do I block search_values_duckdb completely? +

Set action: deny in the PolicyLayer policy for search_values_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.

What MCP server provides search_values_duckdb? +

search_values_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.