Complex Transaction Compliance Multi-agents AI Audit

Workflow

• Stage 1 (AI/LLMs Filtering): pre-filters transactions flagged for high-risk regions, large cash amounts, or non-standard accounts;
• Stage 2 (AI/LLMs Content Analysis/Multi-Agent): Agent deeply analyzes associated documents (internal communications, transaction memos) to determine if transactions share a Common Fraudulent Intent;
• Stage 3 (AI/LLMs Insight Generation/LangFuse): system automatically generates a comprehensive report detailing the reasoning and provides the LangFuse Audit ID for verification

System Design:

flowchart TD
    subgraph client_gateway_layer [Client and Gateway Layer]
        A[User/Manager Input] --> B(Streamlit Frontend Proxy)
        B -- Synchronous POST --> C{AWS API Gateway / Auth & Rate Limiting}
    end

    subgraph core_backend [Core Intelligent Backend]
        C -- HTTPS/Auth --> D(FastAPI Backend: API Endpoint)
        D -- Respond 202 Accepted --> C
        D -- Async Trigger --> E(AWS SQS Queue: Agent Task Queue)
        
        subgraph orchestration_exec [Orchestration and Execution]
            E --> F(Agent Orchestrator Service - FastAPI/Uvicorn)
            F -- Fails --> F_DLQ[AWS SQS: Dead Letter Queue]
            F -- Health Check --> H(CloudWatch/Prometheus: System Metrics)
        end
        
        subgraph agent_stages [Sequential Execution within F]
            F -- Stage 1 Filtering --> G1(PostgreSQL / Pinecone)
            F -- Stage 2 Deep Review --> G2[External LLM Service with circuit breaker]
            F --> I(Redis Cache: Rate Limit & Caching)
            F --> J(LangFuse: Audit Trace Logging)
        end
        
        F -- Final Insight --> L(Webhook Callback / PostgreSQL)
        L --> M(Streamlit: Updates UI Status)
    end

    subgraph data_observe [Data and Observability Layer]
        H --> J
        J --> H
    end
    
    style A fill:#DCE5F5,stroke:#333
    style C fill:#FFE0B2,stroke:#FF9900
    style D fill:#FFF4E8,stroke:#FFA000
    style F fill:#E0F7FA,stroke:#00BCD4
    style E fill:#F0F8E8,stroke:#00AA00
    style F_DLQ fill:#FBEAEB,stroke:#D9534F
    style I fill:#FFF4E8,stroke:#FF9900
    style H fill:#E8F0FF,stroke:#3366FF

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