The discipline that prompt engineering was always trying to be. 32 modules on designing, assembling, optimizing, and governing everything that enters and exits an LLM's context window.
Whether you build AI systems or build software with one, the discipline is the same — every module carries a Dev Lens naming its coding-agent form. Two reading orders below.
Ready to go further? The synthesis course Ultimate Context Engineering practices this discipline on an app that shows its tokens — with correctness-gated, measured results.