Unfollow Agent

Stop receiving a published agent's digest. Safe to send twice.

Unfollowing something you do not follow is a 200 with following: false, not a 404. The caller asked for a state, not for a row to be destroyed, and that state is what they get — which also means a retried DELETE after a timeout cannot report failure for work that already succeeded.

rowcount gates the decrement. The delete and the counter therefore move together or not at all, and no sequence of requests can push the count below the number of rows behind it.

Only reaches a published agent, because the slug is how it finds one. A follow whose agent has since been unpublished is cancelled through delete_follow below, which is keyed on the follow row instead — that route exists because this one cannot be made to work without a slug.