Resolves a trading symbol (e.g. AAPL, BTC) to an eToro instrument ID (read-only).
AI agents call etoro_search_instrument 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 metadata about trading instruments without modifying, deleting, or executing any trades or financial transactions. It is a simple symbol-to-ID mapping query, characteristic of Read category tools. The low severity reflects minimal blast radius—symbol lookups cannot cause financial harm or unintended trades.
From the tool's definition Tool description explicitly states 'read-only' and the operation 'resolves a trading symbol... to an eToro instrument ID' is a lookup/query operation with no side effects.
Attacks that exploit this kind of access
Resolves a trading symbol (e.g. AAPL, BTC) to an eToro instrument ID (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_search_instrument: 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_search_instrument 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_search_instrument 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_search_instrument. 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_search_instrument 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.
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