Download exercise data in FIT format. FIT (Flexible and Interoperable Data Transfer) is a standard format used by fitness devices and apps.
AI agents call get_exercise_fit 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 existing exercise data in FIT format. It performs a read-only query operation without side effects, matching the Read category definition. The download action is passive data retrieval. Severity is low because misuse would only expose personal fitness data already owned by the user, with no destructive, financial, or system-level impact.
From the tool's definition Tool name 'get_exercise_fit' and description explicitly states 'Download exercise data' - a retrieval operation with no modification or deletion of data.
Attacks that exploit this kind of access
Download exercise data in FIT format. FIT (Flexible and Interoperable Data Transfer) is a standard format used by fitness devices and apps. 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_exercise_fit: 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_exercise_fit 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_exercise_fit 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_exercise_fit. 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_exercise_fit 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.
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