Duncan Leung https://www.duncanleung.com/blog 📚 Learning, 👨🏻‍💻 Building, 📝 Documenting... en-us duncan@leungs.email (Duncan Leung) duncan@leungs.email (Duncan Leung) Fri, 18 Sep 2026 00:00:00 GMT https://www.duncanleung.com/blog/claude-code-session-capture-observer-architecture Building an Observer That Turns Claude Code Sessions into a Knowledge Base https://www.duncanleung.com/blog/claude-code-session-capture-observer-architecture Every Claude Code session produces decisions, patterns, and context that vanish when the terminal closes. I built a daemon that watches for session endings, extracts the knowledge, distills it with Haiku, and compiles it into an Obsidian wiki with Sonnet — turning every coding session into searchable institutional memory for about $20/month. Fri, 18 Sep 2026 00:00:00 GMT duncan@leungs.email (Duncan Leung) aiclaude-codeknowledge-management