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## What Two fixes to `crates/buzz-db/src/store/relay_admin_actions.rs` and one cleanup in `crates/buzz-db/src/store/thread.rs`. ### 1. Thread counter atomicity The admin delete action now calls the canonical `soft_delete_event_and_update_thread_in_tx` body shared with NIP-29 and NIP-09 event-ID deletion. The delete, parent `reply_count` decrement, root `descendant_count` decrement, and step marker commit or roll back together in one transaction. A second action against an already-deleted target is a no-op and does not double-decrement. After a committed delete, `emit_live_thread_summary` refreshes the live thread count the same way `DELETE_EVENT` does. ### 2. Lock-first lease expiry fence (all five admin-action paths) On main, the final marker `UPDATE` in every admin-action path (`execute_ban_with_marker`, `execute_timeout_with_marker`, `execute_kick_with_marker`, `execute_delete_with_marker`, `record_failure`) checks `clock_timestamp()` in the `WHERE` clause. PostgreSQL can evaluate that predicate before waiting to lock the target row. If another transaction holds the action row and releases it unchanged after the lease expires, the update commits under the stale timestamp. On this branch, each path acquires the action row with `SELECT … FOR UPDATE` inside the same transaction before any domain write. The wall-clock expiry check in the marker `UPDATE` runs after that lock is held, not before. The pre-entry ownership `SELECT EXISTS` checks remain — they are early-rejection optimizations that are safe because the correct final fence rolls back any provisional work. `record_failure` on main uses a single-statement `execute(pool)`. On this branch it begins a transaction, acquires the row lock with `SELECT … FOR UPDATE` and an explicit expiry check, then writes `state = 'failed'` — matching the four mutation functions. **Lease validity is checked at the protected ownership check under the action-row lock, not at physical `COMMIT` completion.** | Function | Change | |---|---| | `execute_ban_with_marker` | `SELECT … FOR UPDATE` added after pre-entry check, before domain write | | `execute_timeout_with_marker` | same | | `execute_kick_with_marker` | same | | `execute_delete_with_marker` | same | | `record_failure` | wrapped in transaction; `SELECT … FOR UPDATE` + clock check before state update | ### 3. Unused standalone counter helpers removed `increment_reply_count`, `decrement_reply_count` (both in `thread.rs`), and `Db::decrement_reply_count` have no production callers outside their forwarding wrappers. Both perform unguarded autocommit writes that bypass the deletion-transition/atomicity invariant. Removed to prevent future misuse. --------- Signed-off-by: Will Pfleger <pfleger.will@gmail.com> Signed-off-by: Hayt <211b96e6a2b7f45fd4047988976c7bbbeeda0c15f3ae7b32eec20834b5a55118@buzz.block.builderlab.xyz> Co-authored-by: Hayt <211b96e6a2b7f45fd4047988976c7bbbeeda0c15f3ae7b32eec20834b5a55118@buzz.block.builderlab.xyz>