Lesson 1947 of 2116
Refactoring Legacy Code With AI in Small Steps
Use AI to break large refactors into small, verifiable diffs.
Lesson map
What this lesson covers
Learning path
The main moves in order
- 1The premise
- 2refactor
- 3diff
- 4regression
Concept cluster
Terms to connect while reading
Section 1
The premise
Big refactors fail when they bundle many changes; AI works best on tight, single-purpose diffs you review and test in sequence.
What AI does well here
- Propose ordered, atomic refactor steps from a stated goal.
- Generate small diffs per step you can apply and run tests against.
What AI cannot do
- Guarantee behavior preservation without your tests.
- Understand business intent buried in undocumented code paths.
Key terms in this lesson
End-of-lesson quiz
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