Vibe Regression
ELI5 — The Vibe Check
Vibe regression is when the AI 'fixes' one thing and silently breaks two others. The tests it didn't know to run now fail. The feature it didn't know existed now doesn't. You shipped, and now you're debugging ghosts.
Real Talk
Vibe regression describes regressions introduced by AI-assisted changes that lack sufficient context about the broader codebase. Unlike traditional regressions, vibe regressions often touch distant or unrelated functionality because the AI inferred 'clean-up' changes outside the intended scope. Prevention: comprehensive test suites, narrow prompts, and human review of all diffs.
When You'll Hear This
"Classic vibe regression — the login flow broke when I asked to refactor the signup page." / "Our test coverage finally caught a vibe regression."
Related Terms
AI Pair Programming
AI pair programming is pair programming where your partner is an AI.
Regression
Regression is like classification but instead of sorting things into categories, you're predicting a number. What will this house sell for?
Vibe Drift
Vibe drift is when you start an AI coding session on-task and end it three hours later having rewritten your entire auth system for no reason.