Claude Code: Optimize Memory in Five Layers
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Understanding Claude Code's Memory
Claude Code, an artificial intelligence system, does not suffer from forgetfulness in the traditional sense. Each session begins with a new context window, meaning users must properly integrate information into the memory system to avoid repeating the same explanations.
The Five Layers of Memory
Claude Code's memory is structured into five distinct layers:
- Managed Policy
- CLAUDE.md User
- CLAUDE.md Project
- CLAUDE.md Local
- Rules, accompanied by automatic memory
These layers are concatenated at each session, and more recent or specific instructions take precedence over previous ones. This organization allows for precise and hierarchical management of information.
Tips for Optimal Use
To maintain an effective CLAUDE.md, it is advisable to:
- Keep content short, concise, verifiable, and correction-oriented.
- Move repeated corrections into the appropriate files.
- Use path-scope rules to develop instructions without increasing token costs.
Automatic Memory
Claude's automatic memory acts like a local notepad, allowing for daily promotion of notes into the appropriate layer:
- CLAUDE.md Project for team-relevant information.
- Rules for file-specific conventions.
- CLAUDE.local.md for personal but stable preferences.
Memory vs Enforcement
The article clearly distinguishes between memory, which serves as a guide, and enforcement, which are hooks executed systematically. A practical checklist is provided for using /memory and auditing CLAUDE.md to minimize unnecessary repetitions.
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