AI agents call list-athlete-clubs to retrieve information from Strava without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool queries and returns data about the authenticated user's club memberships. It performs a read-only operation, retrieving existing information without creating, modifying, deleting, or executing any external operations. The blast radius of misuse is minimal—an attacker gains only visibility into the user's club affiliations, which is informational data.
From the tool's definition Tool name 'list-athlete-clubs' and description 'Lists the clubs the authenticated athlete is a member of' indicate a retrieval operation with no side effects.
Attacks that exploit this kind of access
Lists the clubs the authenticated athlete is a member of. It is categorised as a Read tool in the Strava MCP Server, which means it retrieves data without modifying state.
Register the Strava MCP server in PolicyLayer and add a rule for list-athlete-clubs: 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 Strava. Nothing to install.
list-athlete-clubs 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 list-athlete-clubs 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 list-athlete-clubs. 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.
list-athlete-clubs is provided by the Strava MCP server (@r-huijts/strava-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.