diff --git a/crates/integration-tests/tests/summary_maintenance_lifecycle_e2e.rs b/crates/integration-tests/tests/summary_maintenance_lifecycle_e2e.rs
new file mode 100644
index 00000000..85648fcf
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+++ b/crates/integration-tests/tests/summary_maintenance_lifecycle_e2e.rs
@@ -0,0 +1,179 @@
+//! End-to-end coverage for workload-aware summary-maintenance planning:
+//! source workload -> PromQL lowering -> candidate search ->
+//! summary-maintenance lifecycle selection -> materialized deployment guarantees.
+
+use std::rc::Rc;
+
+use asap_aware_mapping::cost_model::Cost;
+use asap_aware_mapping::CostRate;
+use asap_aware_mapping::{
+    global_selection_with_summary_maintenance_lifecycles,
+    materialize_with_summary_maintenance_lifecycles, search_workload_with, CostModel, Horizon,
+    SummaryMaintenanceCapabilities, SummaryMaintenanceLifecycleCapabilities,
+    SummaryMaintenanceLifecycleCostInputs, SummaryMaintenanceLifecycleRejection, WorkloadDemand,
+};
+use asap_frontend_promql::lower_promql_batch;
+use asap_types::post_asap::{
+    EvaluationSchedule, SummaryMaintenanceLifecycle, SummaryMaintenanceMode, SummaryNode,
+};
+use asap_types::pre_asap::agg_intent::AggIntent;
+use asap_types::types::AccuracyTarget;
+use asap_types::workload::{
+    AccuracyRequirement, BatchEntry, DataArrival, DataWorkload, Evidence, EvidenceSource,
+    Predictability, Query, QueryLanguage, QueryRequirements, QueryTimeScope, QueryWorkload, Rate,
+    RepeatedDemand, RepeatingEntry, RepetitionInterval, TimeSelection,
+};
+
+const NOW_MS: u64 = 1_000_000;
+
+struct FullyCostedRuntime;
+
+impl CostModel for FullyCostedRuntime {
+    fn rank_candidates(
+        &self,
+        _intent: &AggIntent,
+        candidates: &[asap_types::post_asap::SketchAlgorithm],
+    ) -> Vec<asap_types::post_asap::SketchAlgorithm> {
+        candidates.to_vec()
+    }
+
+    fn summary_maintenance_lifecycle_cost_inputs(
+        &self,
+        _summary: &SummaryNode,
+    ) -> SummaryMaintenanceLifecycleCostInputs {
+        SummaryMaintenanceLifecycleCostInputs {
+            build_cost: Some(Cost(10.0)),
+            maintenance_cost_per_update: Some(Cost(1.0)),
+            summary_read_cost: Some(Cost(1.0)),
+            retention_cost_rate: Some(CostRate(0.1)),
+            retirement_cost: Some(Cost(1.0)),
+        }
+    }
+
+    fn summary_maintenance_capabilities(
+        &self,
+        _summary: &SummaryNode,
+    ) -> SummaryMaintenanceCapabilities {
+        SummaryMaintenanceCapabilities {
+            incremental_update: true,
+            merge: true,
+            delete: true,
+        }
+    }
+}
+
+fn dashboard_workload() -> QueryWorkload {
+    let query = Query("quantile_over_time(0.99, latency[5m])".into());
+    let requirements = QueryRequirements {
+        accuracy: AccuracyRequirement::Explicit(AccuracyTarget::Epsilon(0.01)),
+        ..QueryRequirements::default()
+    };
+    QueryWorkload {
+        language: QueryLanguage::PromQL,
+        query_batch: Some(vec![BatchEntry {
+            query: query.clone(),
+            requirements: requirements.clone(),
+            predictability: Predictability::AdHoc,
+            invocations: 1,
+            execute_at: None,
+            time_selection: TimeSelection::default(),
+        }]),
+        repeating_queries: Some(vec![RepeatingEntry {
+            query,
+            demand: RepeatedDemand::FixedInterval(RepetitionInterval(1_000)),
+            requirements,
+            predictability: Predictability::Predictable { known_at: None },
+            time_selection: TimeSelection {
+                scope: QueryTimeScope::RealTime,
+                ..TimeSelection::default()
+            },
+        }]),
+        data_workload: Some(DataWorkload {
+            arrival: DataArrival::ContinuouslyIngesting,
+            ingestion_rate: Evidence {
+                value: Some(Rate(1.0)),
+                source: EvidenceSource::Observed,
+                observed_at_ms: Some(NOW_MS),
+                valid_for_ms: Some(60_000),
+            },
+            ..DataWorkload::default()
+        }),
+    }
+}
+
+#[test]
+fn promql_dashboard_materializes_continuous_summary_with_explained_rejections() {
+    let workload = dashboard_workload();
+    workload.validate().unwrap();
+
+    let lowered = lower_promql_batch(&workload)
+        .into_iter()
+        .next()
+        .expect("one normalized workload entry")
+        .expect("valid PromQL");
+    let root = Rc::new(lowered);
+    let strategies = asap_aware_mapping::default_strategies_with(&FullyCostedRuntime);
+    let space = search_workload_with(vec![("dashboard", Rc::clone(&root))], &strategies);
+    let target = Rc::clone(&space.roots[0].1);
+    let capabilities = SummaryMaintenanceLifecycleCapabilities {
+        ephemeral: true,
+        prepared: false,
+        shared: false,
+        continuously_maintained: true,
+    };
+
+    let selection = global_selection_with_summary_maintenance_lifecycles(
+        &space,
+        &workload,
+        &[1],
+        NOW_MS,
+        Some(Horizon(100.0)),
+        capabilities,
+        &FullyCostedRuntime,
+    )
+    .unwrap();
+    let plan = materialize_with_summary_maintenance_lifecycles(
+        &selection,
+        &target,
+        WorkloadDemand::new(&workload, &[1]),
+        NOW_MS,
+        Some(Horizon(100.0)),
+        capabilities,
+        &FullyCostedRuntime,
+    )
+    .unwrap()
+    .expect("selected summary plan");
+
+    assert!(!plan.selected_raw_recompute);
+    assert_eq!(plan.expected_reads, Some(100.0));
+    assert_eq!(plan.deployments.len(), 1);
+
+    let deployment = &plan.deployments[0];
+    let guarantee = deployment
+        .summary_maintenance_lifecycle_guarantee
+        .as_ref()
+        .expect("selected lifecycle guarantee");
+    assert_eq!(
+        guarantee.summary_maintenance_lifecycle,
+        SummaryMaintenanceLifecycle::ContinuouslyMaintained
+    );
+    assert_eq!(guarantee.evaluation_schedule, EvaluationSchedule::PerUpdate);
+    assert_eq!(
+        guarantee.summary_maintenance_mode,
+        SummaryMaintenanceMode::Incremental
+    );
+    assert!(deployment.alternatives.iter().any(|alternative| {
+        matches!(
+            alternative.summary_maintenance_lifecycle,
+            SummaryMaintenanceLifecycle::Prepared { .. }
+        ) && alternative.rejection
+            == Some(SummaryMaintenanceLifecycleRejection::RequiresPredictableOneTimeQuery)
+    }));
+    assert!(deployment.alternatives.iter().any(|alternative| {
+        matches!(
+            alternative.summary_maintenance_lifecycle,
+            SummaryMaintenanceLifecycle::Shared { .. }
+        ) && alternative.rejection
+            == Some(SummaryMaintenanceLifecycleRejection::UnsupportedByRuntime)
+    }));
+}