Deep-dive into llm4s, a production-grade Scala framework for building LLM applications. From type-safe error handling to provider abstraction and context management, it covers agent orchestration and shipping reliable LLM systems in Scala.
Stop swallowing errors in try-catch blocks. Build safety utilities that preserve context, enable composition, and make errors type-safe. Real refactor from llm4s eliminated 47 try-catch blocks, fixed a streaming bug, and simplified code.
Stop runtime exceptions from crashing LLM pipelines. Build type-safe error hierarchies with Scala Either, ADTs, and smart constructors. Real refactor from llm4s turned generic exceptions into 12+ structured error types and debugging.
Production-tested strategy to cut pipeline failures from 12% to 2% using YAML-based data quality checks (DPAT), CI/CD gates, and strict data contracts. Includes before/after metrics and architecture for self-healing pipelines in prod.