The owner took @thepra, which the deploy had made and kept under its own login deploy-smoke for its signed-in check, for the administrator's login (owner decision 2026-10-17). No persona could change login, so: - admin move-persona <persona> <root> re-points the persona's link first, so the old login can no longer exchange a token for it, then ends its Mastodon tokens and authorizations. Its actor, posts and followers stay; nobody outside is told, since nothing they hold changes. - admin delete-root <root> deletes a login as the client deletes its own (RootRemoval): every persona it still has goes with it, announced deleted, and its sessions end. - admin smoke and the deploy's signed-in step are gone, since the step would make deploy-smoke again and fail to make @thepra under it. The deploy keeps its anonymous checks; tools/smoke/oauth.sh stays for the pasture's privapub_token. Tests: move-persona (the persona listed under its new login only, its old token refused, unknown persona or login exit 1) and delete-root (the login and its persona deleted, the login refused); the whole suite passes (963). Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>