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Articles

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  AI & Machine Learning

  What Is an AI Memory Layer?

  Chat history is not memory. A memory layer is durable, retrievable state about decisions, preferences and facts that survives past the context window. What belongs in one, and what should stay in a log.

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  AI & Machine Learning

  RAG in 2026: When You Still Need It, When You Don't

  Long context windows and better tool use took work away from retrieval-augmented generation. RAG did not become obsolete — its job got narrower. A decision framework for when to retrieve, when to load, and when to call a tool.

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  AI & Machine Learning

  Context Engineering vs Prompt Engineering: What Changed

  Prompt wording stopped being the bottleneck around 2025. The harder problem — deciding what lands in the context window at every turn — got a name. What context engineering is, and the four things it covers.

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