[Whale / Large Orders / Big Players] 大口投資家の動向検出（whale / large orders / big players / smart money）。板×ローソク足で大口注文を簡易検出。推測ベース。
AI agents call detect_whale_events to retrieve information from Bitbank Lab without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves and analyzes cryptocurrency market data (order book and price action) to identify patterns associated with large institutional traders. It is purely analytical—it reads market data and applies technical analysis, producing insights without side effects on data or systems. No data modification, code execution, or financial transactions occur.
From the tool's definition Tool description indicates it 'detects large order trends' (大口投資家の動向検出) by analyzing 'order book × candlesticks' (板×ローソク足) to 'simply detect large orders' (大口注文を簡易検出).
Attacks that exploit this kind of access
[Whale / Large Orders / Big Players] 大口投資家の動向検出（whale / large orders / big players / smart money）。板×ローソク足で大口注文を簡易検出。推測ベース。. It is categorised as a Read tool in the Bitbank Lab MCP Server, which means it retrieves data without modifying state.
Register the Bitbank Lab MCP server in PolicyLayer and add a rule for detect_whale_events: 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 Bitbank Lab. Nothing to install.
detect_whale_events 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 detect_whale_events 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 detect_whale_events. 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.
detect_whale_events is provided by the Bitbank Lab MCP server (tjackiet/bitbank-genesis-mcp-server-http-archive). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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