{"id":"click-aggregator-return-value-signaling","text":"`process_event` returns `True`/`False` to signal acceptance or rejection — invalid states (duplicates, late arrivals) are expected in stream processing, not exceptional, so no exceptions are raised.","truth_value":"IN","source":"entries/2026/06/05/ad-click-event-aggregation-click_aggregator.md","source_url":"","source_hash":"","justifications":[],"dependents":["error-signaling-lacks-codebase-convention"],"metadata":{},"created_at":"","updated_at":"","reviewed_at":"","verified_at":"","retracted_at":"","explanation":{"steps":[{"node":"click-aggregator-return-value-signaling","truth_value":"IN","reason":"premise"}]}}