AI agents call list_secrets 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 retrieves secrets without modifying them, placing it in the Read category. However, secrets typically include API keys, tokens, credentials, and other authentication material. Unauthorized access to a secrets list could enable lateral movement, privilege escalation, or compromise of backend systems.
From the tool's definition Tool name is 'list_secrets' with description 'List all secrets'. The verb 'list' indicates a retrieval operation with no modification. However, the subject matter—secrets—elevates severity due to the sensitive nature of the data being exposed.
Documented attack patterns abuse exactly the kind of access list_secrets 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_secrets:
{
"version": "1",
"default": "deny",
"tools": {
"list_secrets": {}
}
}list_secrets is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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List all secrets. 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_secrets: 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_secrets 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_secrets 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_secrets. 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_secrets 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.