Get VO2 Max estimate for a date (running and cycling). Data may not be available for today, use yesterday. For ranges use get_vo2max_range
AI agents call get_vo2max 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 fitness metrics (VO2 Max estimate) from Garmin Connect for a specified date. It performs a read-only query operation with no modifications, deletions, or external actions. The instruction to use alternative date ranges if data unavailable further confirms this is a simple data retrieval function. No state changes, financial implications, or destructive actions are possible.
From the tool's definition Tool name is 'get_vo2max' with description stating 'Get VO2 Max estimate for a date'. The verb 'Get' and the retrieval-only nature of querying a VO2 Max estimate indicate data retrieval with no side effects.
Documented attack patterns abuse exactly the kind of access get_vo2max 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_vo2max:
{
"version": "1",
"default": "deny",
"tools": {
"get_vo2max": {}
}
}get_vo2max is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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Get VO2 Max estimate for a date (running and cycling). Data may not be available for today, use yesterday. For ranges use get_vo2max_range. 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_vo2max: 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_vo2max 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_vo2max 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_vo2max. 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_vo2max 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.