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Part 3: The AI Bug Taxonomy — 7 Failure Modes of Generated Code

A comprehensive taxonomy of AI-generated bugs: Phantom package hallucinations, subtle off-by-one errors, state mutation leaks, and security oversights.

August 19, 2026 · 1 min · Lê Tuấn Anh

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Answer-first: AI-generated code suffers from distinct failure modes rarely seen in human junior developers: hallucinated API parameters, silent exception swallows, and plausible-looking but non-existent package imports (Package Hallucination).