Someone sends a long document and asks for a quick check. They might want you to spot a missing date, assess the argument or proofread every line. Those are different tasks, and a short label does not tell you which one they expect.
Ask what decision the check should support. Clarify the sections that need attention and the response they want. If you can only review a limited part, say so before they rely on a broader assessment.
Report what you actually checked
When replying, identify the part you reviewed and the question you answered. For example, you may have checked the schedule without checking the figures. That distinction matters to anyone using your response as approval.
If the request needs expertise you do not have, tell the person which part you cannot assess. You can still help with a clear sentence or missing reference when appropriate. Avoid describing a document as fully checked simply because you read it once and did not notice an obvious problem.
