Feedback describes what a reader found missing or wrong, often that the asset did not help with a task it was retrieved for. It is a signal, not a fact to insert. Change a field only when it is missing or broken, or when it claims more than the body covers, and then only to describe what the body covers. Feedback about a task the asset never claims to cover, or asking for information the asset lacks, needs no change. When the feedback says the asset is stale, outdated, superseded or historical, a `when_to_use` names the version or date the body records ("When working with the 0.1.0 client"), or stays as it is.