Get detailed sleep data with all sleep phases
AI agents call get_sleep_details to retrieve information from Withings 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 sleep phase data from the Withings Health API without creating, modifying, deleting, or executing anything. It is a straightforward data query that returns health metrics. The blast radius of misuse is minimal—an attacker gains visibility into a user's sleep patterns but cannot alter health records, execute code, or cause financial harm. Confidence is high due to clear read-only semantics.
From the tool's definition Tool name 'get_sleep_details' and description 'Get detailed sleep data with all sleep phases' indicate a retrieval operation with no modification or execution of external operations.
Attacks that exploit this kind of access
Get detailed sleep data with all sleep phases. It is categorised as a Read tool in the Withings MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Withings MCP Server MCP server in PolicyLayer and add a rule for get_sleep_details: 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 Withings MCP Server. Nothing to install.
get_sleep_details 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_details 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_details. 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_details is provided by the Withings MCP Server MCP server (schimmilab/withings-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 →