Get continuous heart rate data recorded throughout the day. Returns 5-minute interval heart rate samples. Requires heart rate tracking to be enabled on the Polar device.
AI agents call get_continuous_heart_rate 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 performs a data retrieval operation only. It queries historical heart rate measurements from a Polar fitness device and returns them without any side effects, modifications, or state changes. The data is read-only access to the user's own fitness metrics.
From the tool's definition Tool retrieves ('get_') continuous heart rate data as samples at 5-minute intervals with no modification, deletion, or execution capability described.
Attacks that exploit this kind of access
Get continuous heart rate data recorded throughout the day. Returns 5-minute interval heart rate samples. Requires heart rate tracking to be enabled on the Polar device. 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: 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 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 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. 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 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.
Every MCP server has a record like this.
Type a name, get the same breakdown: verified identity, auth posture, risk grade, capabilities, recommended policy.
Teams ship this data inside their own products. See what a licence covers →