[MACD Cross / Crossover / Screening] MACDクロス検出（MACD cross / crossover / golden cross / dead cross / screening）。 pair省略: 複数銘柄スクリーニング / pair指定: 単一ペア深掘り分析（forming検出・過去統計）。 screen（スクリーニング用）: - crossType: golden|dead|both - minHistogramDelta / maxBarsAgo / minReturnPct / maxReturnPct - sortBy: date|hi...
AI agents call detect_macd_cross to retrieve information from Bitbank without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
Even though detect_macd_cross only reads data, uncontrolled read access leaks sensitive information and racks up API costs — an agent caught in a retry loop can make thousands of calls a minute without anyone noticing.
Attacks that exploit this kind of access
[MACD Cross / Crossover / Screening] MACDクロス検出（MACD cross / crossover / golden cross / dead cross / screening）。 pair省略: 複数銘柄スクリーニング / pair指定: 単一ペア深掘り分析（forming検出・過去統計）。 screen（スクリーニング用）: - crossType: golden|dead|both - minHistogramDelta / maxBarsAgo / minReturnPct / maxReturnPct - sortBy: date|histogram|return|barsAgo - limit: 上位N件. It is categorised as a Read tool in the Bitbank MCP Server, which means it retrieves data without modifying state.
Register the Bitbank MCP server in PolicyLayer and add a rule for detect_macd_cross: 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. Nothing to install.
detect_macd_cross 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_macd_cross 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_macd_cross. 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_macd_cross is provided by the Bitbank MCP server (tjackiet/bitbank-lab-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.