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AI agents don't have a memory problem. They have an architecture problem.
AI Agent 的真正短板不是记忆，而是架构缺陷：近四分之一的 token 被结构性浪费，根源在于缺乏持久化上下文。
Every session, the LLM starts fresh. The user re-explains their role, their constraints, their preferences, what they were doing last time. Then the s…