AI agents call query_artifacts 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 or queries data about artifacts without modifying, deleting, or executing operations. It has no side effects beyond returning information. The low severity reflects minimal blast radius if an AI agent uses this tool—it can only access artifact metadata that is likely already accessible to the user account. The confidence is high because the description clearly indicates a read-only operation.
From the tool's definition Tool name 'query_artifacts' combined with description 'Query information about an array of artifacts' indicates a retrieval operation. The verb 'query' and the word 'information' are consistent with data retrieval without modification.
Documented attack patterns abuse exactly the kind of access query_artifacts 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 query_artifacts:
{
"version": "1",
"default": "deny",
"tools": {
"query_artifacts": {}
}
}query_artifacts is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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Query information about an array of artifacts. 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 query_artifacts: 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.
query_artifacts 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 query_artifacts 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 query_artifacts. 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.
query_artifacts 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.
Free to start. No card required.
154 eToro MCP Server tools catalogued and risk-classified — across an index of 43,000+ MCP servers.