Weed leftover from a codebase. Small fixes only, never a refactor, never a behavior change. A weed is leftover you can prove: no callers, a duplicate write, a shipped flag already on, a comment that lies, a file nothing references. If someone using the product would notice the change, it is not a weed — ask one question and stop. Hunt recent merges (especially AI-authored) and leftover from a s...