Download a XERT workout file in ZWO (Zwift) or ERG format.
AI agents call xert-download-workout to retrieve information from XERT Cycling Training without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves and exports an existing workout file in a standard format. Downloading data is a read operation with no modification, deletion, or execution of code. The user receives a copy of the workout file without altering the source data or triggering external operations.
From the tool's definition Tool name 'download-workout' and description 'Download a XERT workout file in ZWO (Zwift) or ERG format' indicates data retrieval with no side effects.
Attacks that exploit this kind of access
Download a XERT workout file in ZWO (Zwift) or ERG format. It is categorised as a Read tool in the XERT Cycling Training MCP Server, which means it retrieves data without modifying state.
Register the XERT Cycling Training MCP server in PolicyLayer and add a rule for xert-download-workout: 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 XERT Cycling Training. Nothing to install.
xert-download-workout 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 xert-download-workout 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 xert-download-workout. 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.
xert-download-workout is provided by the XERT Cycling Training MCP server (milofax/xert-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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