Get activity samples for a date range. Maximum range is 28 days, and from date cannot be older than 365 days.
AI agents call get_activity_samples_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 activity sample data from Polar fitness tracking without creating, modifying, or deleting any records. It is a straightforward read operation on personal health/fitness metrics. The blast radius of misuse is low—an agent could retrieve a user's fitness data, but cannot modify accounts, trigger payments, execute commands, or cause irreversible harm.
From the tool's definition Tool name 'get_activity_samples_range' with description 'Get activity samples for a date range' clearly indicates retrieval of fitness data without modification. The constraints (28-day max, 365-day limit) confirm it only queries historical data.
Attacks that exploit this kind of access
Get activity samples for a date range. Maximum range is 28 days, and from date cannot be older than 365 days. 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_activity_samples_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_activity_samples_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_activity_samples_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_activity_samples_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_activity_samples_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.
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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