{"id":"chat-soft-delete-preserves-sequence","text":"Deleted messages remain in the conversation list with `deleted=True` and content replaced with `\"[deleted]\"`, preserving sequence number continuity for pagination.","truth_value":"IN","source":"entries/2026/06/05/chat-system-chat_system.md","source_url":"","source_hash":"","justifications":[],"dependents":["soft-delete-preserves-structural-invariants"],"metadata":{},"created_at":"","updated_at":"","reviewed_at":"","verified_at":"","retracted_at":"","explanation":{"steps":[{"node":"chat-soft-delete-preserves-sequence","truth_value":"IN","reason":"premise"}]}}