Fetches display metadata (name, type, exchange, etc.) for one or more instrument IDs (read-only).
AI agents call etoro_instrument_details 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 static instrument metadata without side effects. It performs a simple lookup/query operation analogous to a search or fetch function. The 'read-only' designation confirms no state changes occur. The sibling tools (etoro_holdings, etoro_portfolio_summary, etoro_raw_pnl) are also Read category.
From the tool's definition Tool description explicitly states 'read-only' and 'Fetches display metadata' (name, type, exchange, etc.) for instruments. No modification, deletion, or financial transaction capability.
Attacks that exploit this kind of access
Fetches display metadata (name, type, exchange, etc.) for one or more instrument IDs (read-only). 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 etoro_instrument_details: 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.
etoro_instrument_details 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 etoro_instrument_details 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 etoro_instrument_details. 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.
etoro_instrument_details is provided by the eToro MCP Server MCP server (ranjanvipul88/etoro-mcp). 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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