获取某天的睡眠数据（深睡/浅睡/REM/醒来时长、睡眠得分、睡眠压力、心率、血氧等）
AI agents call get_sleep to retrieve information from Garmin Connect China 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 sleep data with no side effects. It performs a read-only query of user health metrics from Garmin Connect, consistent with other sibling tools (get_activities, get_devices, get_earned_badges) which are all data retrieval operations. There is no capability to modify, delete, or execute external operations.
From the tool's definition Tool name 'get_sleep' and description indicate retrieval of sleep metrics ('获取某天的睡眠数据' = 'get sleep data for a day').
Attacks that exploit this kind of access
获取某天的睡眠数据（深睡/浅睡/REM/醒来时长、睡眠得分、睡眠压力、心率、血氧等）. It is categorised as a Read tool in the Garmin Connect China MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Garmin Connect China MCP Server MCP server in PolicyLayer and add a rule for get_sleep: 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 China MCP Server. Nothing to install.
get_sleep 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 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. 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 is provided by the Garmin Connect China MCP Server MCP server (xinyuxinyuxintaihaohao/garmin-cn-mcp). 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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