Get continuous heart rate data for a date range. Returns 5-minute interval heart rate samples for each day in the range.
AI agents call get_continuous_heart_rate_range to retrieve information from Polar 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 historical heart rate metrics from the Polar fitness API without any side effects. It queries existing data within a date range and returns samples. There is no capability to modify, delete, or execute operations. While health data is sensitive, the tool itself performs only read operations, making it a Read category risk.
From the tool's definition Tool name 'get_continuous_heart_rate_range' and description 'Get continuous heart rate data for a date range. Returns 5-minute interval heart rate samples' indicate pure data retrieval with no modification, deletion, or execution of code.
Attacks that exploit this kind of access
Get continuous heart rate data for a date range. Returns 5-minute interval heart rate samples for each day in the range. It is categorised as a Read tool in the Polar MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Polar MCP Server MCP server in PolicyLayer and add a rule for get_continuous_heart_rate_range: 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 Polar MCP Server. Nothing to install.
get_continuous_heart_rate_range 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_continuous_heart_rate_range 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_continuous_heart_rate_range. 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_continuous_heart_rate_range is provided by the Polar MCP Server MCP server (nelsonnew/polar-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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