Owner decision (2026-10-03, "A remote account deletes itself"): its posts are kept but
hidden everywhere.
- Post.AuthorGone (additive bool). DeleteHandler's actor-delete branch sets it on every
post whose ActorURI is the actor (one update-many), besides dropping its follows and
timeline rows as before. RemotePosts.Build sets it on a post stored later for an
account already marked Deleted.
- One rule in VisibilityPolicy: IsShown (not deleted, author not gone), IsPublic and
CanSee exclude AuthorGone, plus Shown(post) for loaded posts.
- Lookups by id answer 404 through CanSee (statuses/:id and every sub-route, context,
bookmarks, favourites, polls, reactions, search); provenance, account statuses,
home/public/tag timelines, notifications, conversations, reblogged_by, the clientapi
home and post/DM lists, a community's outbox and our Announces filter on IsShown or
IsPublic; the Mastodon mapper never renders a hidden post or a boost of one.
Tests (30 new):
- AuthorGoneTests: the rule, the handler (posts kept, boosts included, follows and rows
gone), a post fetched after the delete, and 20 Mastodon/ActivityPub lookups over HTTP
seen before and hidden after.
- InboxGapTests: actor Update refresh (name, sanitised summary, key rotation in place
and to a new key id) even with an older `updated`; Undo{Follow} by activity id and by
object; Reject of our QuoteRequest (and a stranger's ignored); group-wrapped
Announce{Like} and Announce{Undo{Like}}; a locked persona's pending follow,
FollowRequest notification, and Decide accepting and rejecting with the original Follow.
- JobHandlerTests: AncestorsJobHandler up to its depth limit; PollRefreshJob and
PollCloseJob (local and remote polls); InstanceDescriber from a peer's NodeInfo and
the weekly dedupe through ObjectRecords; LinkPreviews for public posts only;
DeliveryJobHandler outcomes (2xx, 404/410, 429/503 with Retry-After in seconds and as
a date, 5xx) and a signature and Digest the peer can verify; MediaJanitor.Sweep;
OAuthPruner.Prune.
- MigrationTests: _003, _004, _006 and _007 on seeded rows.
- PublicPagesTests: /@user and /@user/{id} (visibility, junk ids, exact CSP,
Referrer-Policy and nosniff), circle 404, community page, the instance actor,
ActivityPub redirects, and markup escaped in posts, titles and bios.
Production changes besides the rule:
- LinkPreviews.Handle re-checks that a post is still shown and public (the rule
Wanted applies) before fetching anything; before, only enqueueing checked it.
- The legacy /clientapi post and DM lists no longer return soft-deleted posts.
- MediaJanitor.Sweep and OAuthPruner.Prune are the loop bodies, now public and tested.
- InstanceDescriber.Address: a protected virtual identity seam so a test can point
the https NodeInfo addresses at a plain-http peer; production behaviour unchanged.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01ELjqpznMFMNrJoJUj6K5p2
- PersonaSeparationTests: two personas of one login follow the same
account and post; nothing the API maps for one contains the other's id,
username or the root id.
- tools/smoke/mastodon-api.sh checks what a client meets first (instance
v1/v2, discovery, app registration, client credentials, an app token
refused by a user endpoint, the public timeline, revocation) and, given
a persona token, verify_credentials, home and notifications. deploy.yml
runs it after every deploy.
- OAuthPruner removes invalid tokens and authorizations older than two
weeks, every six hours.
- The consent page no longer sets form-action, which browsers apply to the
redirect back to the client after the form is posted.
CLAUDE.md gains the Mastodon API layout and invariants.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_012CzABvBkbcFqoHdmi8b9WB
thepraandClaude Opus 5.5