Get all active instruments for a specified currency and type. Returns detailed information about tradeable assets including fees, constraints, and Greeks.
AI agents call get_instruments to retrieve information from Derive MCP without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves static or near-static market data (instruments, fees, constraints, Greeks) without modifying state, executing trades, or moving funds. It is a read-only query operation typical of market data APIs. While it provides information useful for trading decisions, the tool itself performs no financial transaction, order execution, or data modification.
From the tool's definition Tool name 'get_instruments' and description 'Get all active instruments' indicate data retrieval with 'Returns detailed information about tradeable assets' - a query operation with no side effects.
Attacks that exploit this kind of access
Get all active instruments for a specified currency and type. Returns detailed information about tradeable assets including fees, constraints, and Greeks. It is categorised as a Read tool in the Derive MCP MCP Server, which means it retrieves data without modifying state.
Register the Derive MCP server in PolicyLayer and add a rule for get_instruments: 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 Derive MCP. Nothing to install.
get_instruments 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 get_instruments 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 get_instruments. 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.
get_instruments is provided by the Derive MCP server (solenyaresearch0000/derive-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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