AI agents call list_project_members to retrieve information from eToro MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool performs a read-only operation to retrieve project member information. It has no capability to modify, delete, or execute actions. The blast radius is minimal as it only exposes existing project membership data that authorized users already have access to. Classified as Read with low severity.
From the tool's definition Tool name 'list_project_members' and description 'Lists all members of a project' indicate a query operation that retrieves data without modification or side effects.
Documented attack patterns abuse exactly the kind of access list_project_members gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and eToro MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for list_project_members:
{
"version": "1",
"default": "deny",
"tools": {
"list_project_members": {}
}
}list_project_members is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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Lists all members of a project. It is categorised as a Read tool in the eToro MCP Server MCP Server, which means it retrieves data without modifying state.
Register the eToro MCP Server MCP server in PolicyLayer and add a rule for list_project_members: 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 eToro MCP Server. Nothing to install.
list_project_members 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_project_members 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_project_members. 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_project_members is provided by the eToro MCP Server MCP server (shlomico-tr/etoroportfoliomcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from eToro MCP Server, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
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154 eToro MCP Server tools catalogued and risk-classified — across an index of 43,000+ MCP servers.