Context Engineering Is Replacing Prompt Engineering: Building Production Context Pipelines for LLM Apps

1Key Takeaways

• If you've spent time tweaking prompts to fix a flaky RAG app or a wandering agent, you've probably noticed the same thing most of us do eventually: rewording the prompt fixes the demo case and breaks two others.
• The actual bug usually isn't the prompt.
• It's what the model was handed before the prompt even ran — retrieved documents that contradict each other, conversation history crowding out the facts that matter, or the one correct chunk buried in the middle of a context blob where positional….