This repository contains a sophisticated COBOL modernization toolkit that uses AI agents to analyze, extract business logic from, and convert legacy COBOL code to modern Java (Quarkus) or C# (.NET) applications. The system features an agent-based architecture with specialized agents for structural analysis, business logic extraction, dependency mapping, and code conversion. It includes a web portal for monitoring migration progress, visualizing dependency graphs, and interacting with AI assistants. The toolkit handles large COBOL files through intelligent semantic chunking that preserves code context across chunks, and uses a hybrid persistence approach (SQLite for metadata, Neo4j for graph visualization) to store migration artifacts. Key innovations include a three-tier complexity reasoning system that dynamically adjusts AI effort based on code complexity, semantic unit-aware chunking, and cross-chunk consistency mechanisms for type mappings and signatures.