{"id":"eager-rebuild-trades-write-cost-for-derived-consistency","text":"Autocomplete and leaderboard both eagerly rebuild derived data structures on every mutation rather than deferring recomputation, guaranteeing that derived state (top-k caches, sorted rankings) is always consistent at the cost of write-path performance.","truth_value":"IN","source":"","source_url":"","source_hash":"","justifications":[{"type":"SL","antecedents":["autocomplete-cache-consistency","leaderboard-update-by-remove-reinsert"],"outlist":[],"label":"autocomplete rebuilds top_k_cache for all ancestor nodes on every trie mutation; leaderboard removes and reinserts entries on score update — both choose O(mutation) rebuild over eventual consistency of derived structures"}],"dependents":["write-read-cost-allocation-is-per-use-case"],"metadata":{"last_reviewed":"2026-06-06T06:26:57","review_result":"pass"},"created_at":"","updated_at":"","reviewed_at":"","verified_at":"","retracted_at":"","explanation":{"steps":[{"node":"eager-rebuild-trades-write-cost-for-derived-consistency","truth_value":"IN","reason":"SL justification valid","antecedents":["autocomplete-cache-consistency","leaderboard-update-by-remove-reinsert"],"label":"autocomplete rebuilds top_k_cache for all ancestor nodes on every trie mutation; leaderboard removes and reinserts entries on score update — both choose O(mutation) rebuild over eventual consistency of derived structures"},{"node":"autocomplete-cache-consistency","truth_value":"IN","reason":"premise"},{"node":"leaderboard-update-by-remove-reinsert","truth_value":"IN","reason":"premise"}]}}