Why do we typically include a 10–20% overlap between text chunks? What happens to the retrieval quality if the overlap is zero?

How does the "Extraction, Transformation, and Loading" process differ when preparing data for a Vector Database versus a traditional SQL database?

How do you evaluate an agent when the "correct path" might involve 5 different tool calls in any order?

How would you design an orchestration layer for a system with multiple specialized AI agents (e.g., planner, retriever, executor) where partial failures are common?