Document P1 issue discovered during comment system implementation: when comments arrive before their parent post (cross-repo Jetstream ordering), the post's comment_count is never reconciled. Issue details: - Comment consumer updates post counts when processing events - If comment arrives BEFORE post is indexed, update returns 0 rows - When post consumer later indexes the post, it sets comment_count = 0 - NO reconciliation logic to count pre-existing comments Solution: Post consumer must implement same reconciliation pattern as comment consumer (COUNT subquery after insert). Related: Comment reply_count reconciliation was fixed in comment system implementation (2025-11-04). 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude <noreply@anthropic.com>