Latest Agent LLM Prompting Context Engineering Kacper Łukawski Lead DevRel at Deepset Context Engineering for Agentic Systems: What Goes Into Your Agent's Mind A practical introduction to context engineering - what fills the LLM context window in agentic systems, why it matters, and how to keep it under control. April 20, 2026

Context Engineering for Agentic Systems: What Goes Into Your Agent's Mind A practical introduction to context engineering - what fills the LLM context window in agentic systems, why it matters, and how to keep it under control. April 20, 2026Every new generation of Large Language Models arrives with a bigger context window - and the temptation to use it fully. If the model can read a million tokens, why not feed it everything? In practice, more context doesn’t reliably mean better answers: it often means higher costs, slower responses, and a model that loses track of what actually matters. Context engineering is the discipline of deciding not just what to put in the context window, but how much, in what form, and when to leave things out - and it’s quickly becoming one of the most important skills in building…