Externalize agent experience as typed Evolvable Context Units (Memory/Strategy/Workflow/Skill) — no fine-tuning

arXiv·medium signal

Unified Context Evolution (UCE) is a gradient-free framework that improves agents by writing experience into an evolving external library of typed units rather than retraining weights, decomposing what an agent learns into four categories: Memory (facts), Strategy (heuristics), Workflow (procedures), and Skill (reusable capabilities). The actionable takeaway is to stop dumping everything into one flat memory store — tag accumulated experience by type so retrieval can pull the right kind for the situation. This separates 'what happened' from 'what worked' from 'how to do it,' which is exactly what flat memory blurs.