Adaptive decision framework — one dynamic flow with user checkpoints at every phase. Guides from problem to solution through structured research, metrics, factcheck, and sandbox testing. Use when you face a non-trivial decision, need to research before building, plan a feature or experiment, evaluate trade-offs, or the user says 'awrshift', 'let's think this through', 'research first', 'experiment', 'investigate', 'what's the best approach', 'compare options'. Also trigger on: 'исследуй', 'разберись', 'проанализируй', 'эксперимент', or when starting any new project phase, migration, launch, or architecture decision. Do NOT use for simple tasks with clear instructions — just do those directly.