by blader · Claude Skill · ★ 333
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Napkin A skill for Claude Code that gives the agent persistent memory of its mistakes. The agent maintains a markdown file in your repo () where it tracks what went wrong, what you corrected, and what worked. It reads the file at session start and writes to it continuously as it works. By session 3-5 the behavior shift is significant — the agent stops making mistakes you've already corrected and starts pre-empting issues before you catch them. Baby continual learning in a markdown file. Install Claude Code Codex That's it. The skill activates every session, unconditionally. How it works Session start: Agent reads in the current repo. If it doesn't exist, it creates one. During work: Agent logs mistakes (its own and yours), corrections, patterns, preferences — as they happen, not just at session end. Over sessions: The napkin compounds. Session 1 is normal. Session 3 the agent is catching things before you do. Session 5 it's a different tool.
| Stars | 333 |
| Forks | 21 |
| Category | Claude Skill |
| License | MIT |
| Quality Score | 57.810117593954/100 |
| Last Updated | 2026-02-21 |
| Created | 2026-02-07 |
| Platforms | claude-code |
| Est. Tokens | ~0k |
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napkin is A Claude Code skill that gives the agent persistent memory of its mistakes via a per-repo markdown scratchpad.. It is categorized as a Claude Skill with 333 GitHub stars.
You can find installation instructions and usage details in the napkin GitHub repository at github.com/blader/napkin. The project has 333 stars and 21 forks, indicating an active community.
napkin is released under the MIT license, making it free to use and modify according to the license terms.
The top alternatives to napkin on Agent Skills Hub include claude-codex-settings, life-sciences, claude-ai-mcp. Each offers a different approach to the same problem space — compare them side-by-side by stars, quality score, and community activity.