Developer shares 5 years of lessons designing libraries built for AI agents

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A developer with five years of professional library design experience has released Sury v11, reflecting on how the rise of AI agents has changed what makes a good library. The author argues that libraries must now be self-descriptive and drive their own correct usage, since AI agents cannot rely on documentation the way human developers do. Key design choices in Sury v11 include consistent, predictable naming conventions and built-in escape hatches for edge cases, reducing the need for users to memorize rules. The developer notes that allowing user-side customization, such as linter rules for preferred method names, is preferable to imposing opinionated decisions at the library level. According to the author, these principles were always good practice for human developers but have become critical as AI-assisted coding grows more prevalent.

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