Pin a Characterization Suite Before You Accept the First Refactor Diff
This story is from 2026-09-16. It is preserved in the archive; the latest stories are on the live feed.
A four-year-old invoice aggregator often lives in one nine-hundred-line module with almost no tests. A teammate pastes that file into a coding agent and asks the model to clean the structure before Friday's export. The agent returns a confident diff that extracts helpers, reorders branches, and qui…
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- 2026-09-16 03:51 · DEV Community — AI
Pin a Characterization Suite Before You Accept the First Refactor Diff