AI agents call list_courses to retrieve information from Systemeio without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves course information from a Systeme.io school without creating, modifying, or deleting data. It is purely a query operation that returns existing data. The filtering and search parameters are read-only operations. Misuse would have minimal blast radius (information disclosure only), justifying low severity.
From the tool's definition Tool name and description indicate 'List all online courses' with optional filtering—a retrieval operation with no modification or side effects.
Attacks that exploit this kind of access
List all online courses in your Systeme.io school. Filter by active status or search by name. It is categorised as a Read tool in the Systemeio MCP Server, which means it retrieves data without modifying state.
Register the Systemeio MCP server in PolicyLayer and add a rule for list_courses: 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 Systemeio. Nothing to install.
list_courses 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_courses 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_courses. 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_courses is provided by the Systemeio MCP server (snzeeee/mcp-server-systemeio). 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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