brendanddev/explaind: Cognitive steering layer for Gemma 4, structured prompt physics for shaping reasoning trajectories without fine-tuning. (opens in new tab)

This is a submission for the Gemma 4 Challenge: Build with Gemma 4 What I Built explaind is a local-first cognitive steering layer for Gemma 4. It is not a chatbot wrapper, not an agent system, and not a RAG tool. It is a structured prompt-assembly harness that shapes how Gemma 4 reasons — not just what it says. The core thesis: for instruction-tuned models like Gemma 4, prompt structure is part of the system design. The harness, the template, and the injection positions are not presentation ...