get_activities_by_date
AI agents call get_activities_by_date to retrieve information from Garmin MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
The tool name strongly suggests a GET/retrieval operation with no side effects. Although the description is empty, the naming convention and context among peer tools (which include read-only operations like get_activity and read-like downloads) indicate this retrieves historical fitness activity data. There is no evidence of creation, modification, deletion, code execution, or financial operations.
From the tool's definition Tool name "get_activities_by_date" indicates retrieval/query of activities filtered by date. Sibling tools like "get_activities_fordate", "get_activity", and "download_workout" on the same server establish a pattern of Read operations that fetch fitness data…
Attacks that exploit this kind of access
get_activities_by_date. It is categorised as a Read tool in the Garmin MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Garmin MCP Server MCP server in PolicyLayer and add a rule for get_activities_by_date: 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 MCP Server. Nothing to install.
get_activities_by_date 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_activities_by_date 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_activities_by_date. 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_activities_by_date is provided by the Garmin MCP Server MCP server (shubhaankar-sharma/garmin-mcp-railway). 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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