[{"scenario_id":"easy_auth_token_expiry","title":"Account access failures after credential rollover","difficulty":"easy","service":"auth","max_steps":8},{"scenario_id":"easy_checkout_dependency_timeout","title":"Order confirmation failures during catalog handoff","difficulty":"easy","service":"checkout","max_steps":8},{"scenario_id":"easy_email_queue_blocked","title":"Message delivery backlog blocks customer notifications","difficulty":"easy","service":"email","max_steps":8},{"scenario_id":"easy_platform_secret_rotation","title":"Partner integration failures after credential refresh","difficulty":"easy","service":"platform","max_steps":8},{"scenario_id":"easy_search_cache_stale","title":"Catalog freshness case after update propagation stalled","difficulty":"easy","service":"search","max_steps":8},{"scenario_id":"hard_auth_multi_signal_conflict","title":"Account access failures look malicious but trace back to time drift","difficulty":"hard","service":"auth","max_steps":12},{"scenario_id":"hard_checkout_partial_outage","title":"Order completion disruption isolated to one fulfillment zone","difficulty":"hard","service":"checkout","max_steps":12},{"scenario_id":"hard_email_config_regression","title":"Message delivery collapse after signer configuration regression","difficulty":"hard","service":"email","max_steps":12},{"scenario_id":"hard_payments_shadow_traffic_issue","title":"Payment duplicate-charge risk from experiment traffic leak","difficulty":"hard","service":"payments","max_steps":12},{"scenario_id":"hard_search_index_pipeline_failure","title":"Catalog updates dropping after search schema change","difficulty":"hard","service":"search","max_steps":12},{"scenario_id":"medium_auth_db_pool_exhaustion","title":"Account access case after staged release exhausts session capacity","difficulty":"medium","service":"auth","max_steps":10},{"scenario_id":"medium_checkout_flag_rollout","title":"Order completion failures after risk-policy rollout","difficulty":"medium","service":"checkout","max_steps":10},{"scenario_id":"medium_email_provider_vs_config","title":"Message delivery case: provider outage or local credential issue","difficulty":"medium","service":"email","max_steps":10},{"scenario_id":"medium_notifications_retry_storm","title":"Customer notification backlog from retry storm","difficulty":"medium","service":"notifications","max_steps":10},{"scenario_id":"medium_payments_region_misroute","title":"Regional payment exceptions routed to the wrong settlement path","difficulty":"medium","service":"payments","max_steps":10}]