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Dakota HuangAug 31, 2026 • 4 min read
Audit AI-Generated Characterization Tests Before You Refactor
AI writes tests fast. That does not mean the tests protect your refactor. A passing test can still.....
#testing#refactoring#legacycode#ai
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Dakota HuangAug 31, 2026 • 6 min read
You Drafted the Patch. Now Prove It Changed Nothing.
AI writes patches faster than humans review them. That is the new bottleneck. Diff review checks wha...
#testing#ai#refactoring#legacycode
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Dakota WuAug 29, 2026 • 4 min read
Let an Agent Write Your Characterization Tests Before You Refactor Legacy Code
Consider a legacy checkout service that applies a loyalty discount only when the server timezone is....
#testing#refactoring#legacycode#ai
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Dakota HuangAug 30, 2026 • 4 min read
Your AI Refactor Looks Right: Verify It With a Behavior Fingerprint
Your AI refactors look plausible. Plausible is not equivalent. A clean diff can still change...
#refactor#ai#testing#legacycode
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