Get sleep data over a date range (day-by-day). Returns array of {date, data} records with sleep stages, score, duration
AI agents call get_sleep_data_range to retrieve information from Garmin Connect without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves historical sleep metrics and statistics over a specified date range. It performs no writes, deletions, code execution, or financial transactions. The return of existing health data without alteration is a classic Read operation with minimal security risk.
From the tool's definition Tool name is 'get_sleep_data_range' and description states it 'Get sleep data' and 'Returns array of {date, data} records' — purely a retrieval/query operation with no modifications or side effects.
Documented attack patterns abuse exactly the kind of access get_sleep_data_range gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Garmin Connect, and nothing reaches the server without passing your rules. This is the rule we recommend for get_sleep_data_range:
{
"version": "1",
"default": "deny",
"tools": {
"get_sleep_data_range": {}
}
}get_sleep_data_range is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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Get sleep data over a date range (day-by-day). Returns array of {date, data} records with sleep stages, score, duration. It is categorised as a Read tool in the Garmin Connect MCP Server, which means it retrieves data without modifying state.
Register the Garmin Connect MCP server in PolicyLayer and add a rule for get_sleep_data_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 Garmin Connect. Nothing to install.
get_sleep_data_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_sleep_data_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_sleep_data_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_sleep_data_range is provided by the Garmin Connect MCP server (nicolasvegam/garmin-connect-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 97 Garmin Connect tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
Free to start. No card required.
97 Garmin Connect tools catalogued and risk-classified — across an index of 42,500+ MCP servers.