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YishenTu

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Yishen Tu is an open-source developer who created Claudian, an Obsidian plugin that embeds Claude Code (and other coding agents) as an AI collaborator inside a user's notes vault, letting it read, write, search, and run multi-step workflows there. The plugin has become a foundation for related community tools, including the Codian plugin, which credits Claudian's approach. Tu's broader work focuses on making AI agents feel native to existing developer and knowledge-management tools rather than standalone apps.