Retrieves a list of the authenticated user
AI agents call listExampleData to retrieve information from MCP Authentication Demo without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves and queries data for the authenticated user without creating, modifying, deleting, or executing external operations. It is a straightforward read operation with minimal blast radius if misused by an AI agent—the worst case being unauthorized disclosure of existing user data already scoped to that authenticated session.
From the tool's definition Tool name 'listExampleData' and description 'Retrieves a list of the authenticated user' indicate data retrieval with no modification or side effects.
Documented attack patterns abuse exactly the kind of access listExampleData gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and MCP Authentication Demo, and nothing reaches the server without passing your rules. This is the rule we recommend for listExampleData:
{
"version": "1",
"default": "deny",
"tools": {
"listExampleData": {}
}
}listExampleData is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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Retrieves a list of the authenticated user. It is categorised as a Read tool in the MCP Authentication Demo MCP Server, which means it retrieves data without modifying state.
Register the MCP Authentication Demo MCP server in PolicyLayer and add a rule for listExampleData: 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 MCP Authentication Demo. Nothing to install.
listExampleData 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 listExampleData 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 listExampleData. 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.
listExampleData is provided by the MCP Authentication Demo MCP server (workos/vercel-mcp-example). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from MCP Authentication Demo, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
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5 MCP Authentication Demo tools catalogued and risk-classified — across an index of 43,000+ MCP servers.