Blame associates current lines with the commits that last changed them. It is a route into history, not evidence about who caused an incident or why. Inspect the associated diff before drawing a conclusion. A line may have moved or been reformatted without changing behavior. The tasks use a small original file and ask for a specific historical source in the visible output, keeping the conclusion narrower than a claim about a person. For example, a changed route line can point at its delivery commit while an unchanged header points further back. That narrows the next diff to read. It does not establish the author's intent or responsibility.