Project Decomposition Skill The 5-Level Hierarchy Every project is decomposed through five progressively finer levels of granularity. Each level has a well-defined purpose, ownership boundary, and time budget. The hierarchy is not merely organizational — it drives the autonomous loop's scheduling, parallelism analysis, and research sequencing. Phase represents a major, time-boxed milestone that a stakeholder could recognizably point to as "done." A phase might be "Authentication System" or "Data Pipeline Foundation." Phases are sequential by default and should map to natural delivery checkpoi…