Disagree on the claim when context is incomplete

Quote or summarize the specific point you challenge, then say which evidence supports your concern and what remains uncertain. Avoid assigning motives to the person who made the claim.

For example: “I see the benchmark used one file size. Do we know whether the result holds for smaller files?” This identifies a testable gap without pretending the entire conclusion is wrong. If new context changes your view, acknowledge that and revise the claim.

A useful disagreement narrows the question instead of widening the conflict.