How AST Made AI-Generated Functions Actually Reliable

The author found that asking AI to generate raw code led to syntax errors, inconsistent outputs, and security risks like eval or filesystem access. By shifting to AST-based generation — where the AI describes logic structure instead of writing code text — they achieved reliable, predictable, and secure dynamic function generation. ASTs enable validation, sandboxing, and multi-language output because structured trees are far easier to reason about than raw text.