# decision-tree-leaf-cache

Cache decision-tree leaf outcomes (achievedSpecs + priorityScore) keyed by assignment, so pin/unpin operations re-derive top-K and per-set ceilings instantly without re-running the worker. Cache invalidates on ranking or mode change, or when size exceeds 500k entries. Worker accepts a skipKeys set to avoid recomputing cached leaves on partial-hit re-runs (unpin).