The gap between a working API call and a working feature is wider than most developers expect. Here is how to close it, using one real integration as the case study.

Retrieval failures in RAG pipelines are not random events — they follow patterns. Here is a field guide to the seven failure modes I see most often, with concrete fixes for each.

Function calling is not just for developers building complex agents. Here is how to use it for everyday workflows, from beginner patterns to advanced control.