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Jun 6, 2026 · Artificial Intelligence

How Claude Code’s Memory Mechanism Works: A Deep Dive into the Source Code

This article explains why LLMs are stateless, distinguishes short‑term from long‑term memory needs for agents, critiques common memory solutions, and then details Claude Code’s two‑layer architecture—static CLAUDE.md with six hierarchical files and a dynamic auto‑memory system that uses structured markdown, a lightweight selector model, and aging warnings—to provide a practical, source‑level blueprint for building robust agent memory.