Spike Use when the user wants to test an idea before committing to a real build: "spike this", "quick prototype", "is this possible", "compare A/B", "before we build". Do not use when reading docs/code can answer the question, or when the user clearly asked for production implementation. Loop 1. Question: state the concrete feasibility question. 2. Research: read enough docs/source to choose credible approach. 3. Build: create the smallest runnable artifact that validates or invalidates the idea. 4. Stress: try one edge case or failure mode. 5. Verdict: , , or . Output shape - Default workspa…