LangChain Content Blocks (Python) Overview On Claude, is even for pure text — so any code from an OpenAI-first tutorial that calls or crashes with on the first production Claude call (P02). Multi-modal code that works on GPT-4o breaks on Claude because pre-1.0 image-block shapes differed across providers (P64). Multi-turn Claude replay with extended thinking fails with when prior blocks are stripped. Forced prevents and loops forever (P63). This is the deep-dive companion to . That skill's covers the vs divergence and a safe text extractor. This skill goes further : - block iteration mechanic…