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Turn Claude into a Consistent Assistant with CLAUDE.md: 21 Essential Instructions
用21条指令写好 CLAUDE.md，让 Claude 记住你的偏好不再从零开始
Every new Claude session starts with zero memory, forcing you to re-explain preferences and correct the same mistakes. CLAUDE.md is a persistent instruction file that Claude automatically reads, providing context, voice, and behavioral rules from the very first message. This guide presents 21 practical instructions grouped into communication style, behavior constraints, personal context, session memory, and developer-specific safeguards. Each instruction includes the rationale and a ready-to-use snippet. By creating a CLAUDE.md file with even a few of these rules, you can dramatically improve output consistency and save hours each week. Ideal for engineers, writers, and anyone who uses Claude professionally.