Calculate a trader
AI agents call get_trader_pnl to retrieve information from Limitless MCP without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves and calculates trader PnL metrics from blockchain subgraphs without modifying, executing external operations, or affecting any financial transactions. It is a query operation with no destructive or side-effect capabilities. The pattern of sibling tools confirms this server provides read-only analytics and data retrieval functionality.
From the tool's definition Tool name 'get_trader_pnl' and description 'Calculate a trader' indicate a data retrieval operation that queries on-chain subgraph data for profit/loss calculations.
Attacks that exploit this kind of access
Calculate a trader. It is categorised as a Read tool in the Limitless MCP MCP Server, which means it retrieves data without modifying state.
Register the Limitless MCP server in PolicyLayer and add a rule for get_trader_pnl: 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 Limitless MCP. Nothing to install.
get_trader_pnl 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_trader_pnl 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_trader_pnl. 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_trader_pnl is provided by the Limitless MCP server (paulieb14/limitless-subgraphs). 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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