diff --git a/docs/release-control/v6/internal/subsystems/ai-runtime.md b/docs/release-control/v6/internal/subsystems/ai-runtime.md
index 4f3483e9c..b668230fe 100644
--- a/docs/release-control/v6/internal/subsystems/ai-runtime.md
+++ b/docs/release-control/v6/internal/subsystems/ai-runtime.md
@@ -7499,6 +7499,16 @@ target. Deleted-resource reconciliation still uses the full current global
 state, and the synthetic Patrol runtime finding retains its existing special
 handling.
 
+Finding creation also validates the provider-authored resource ID and display
+name as one identity pair against the current runtime snapshot. When both
+values resolve uniquely but identify different same-type resources, core
+rejects the report and lets the bounded finding repair turn resubmit a coherent
+canonical pair; it never guesses which value was intended. This prevents one
+incident from being persisted twice when a report copies the ID of an in-scope
+sibling while describing the correct affected resource by name. The existing
+exact-name repair remains limited to unknown ID transcription errors and does
+not redirect a real known resource ID across the finding scope boundary.
+
 A Watch provider turn that stops because its output-token allowance was
 exhausted is not a completed finding decision. Core preserves the partial turn
 only as model context, excludes its unfinished prose from the durable Patrol
diff --git a/internal/ai/patrol_findings.go b/internal/ai/patrol_findings.go
index 29e19668b..bd076d93b 100644
--- a/internal/ai/patrol_findings.go
+++ b/internal/ai/patrol_findings.go
@@ -550,6 +550,9 @@ func newPatrolFindingCreatorAdapterState(p *PatrolService, snap patrolRuntimeSta
 }
 
 func (a *patrolFindingCreatorAdapter) CreateFinding(input tools.PatrolFindingInput) (string, bool, error) {
+	if err := a.validateFindingResourceIdentity(input); err != nil {
+		return "", false, err
+	}
 	if canonical, repaired := a.canonicalizeUnknownFindingResource(input); repaired {
 		log.Info().
 			Str("submitted_resource_id", input.ResourceID).
@@ -673,6 +676,57 @@ func (a *patrolFindingCreatorAdapter) CreateFinding(input tools.PatrolFindingInp
 	return id, isNew, nil
 }
 
+// validateFindingResourceIdentity rejects a model-authored resource ID/name
+// pair when each value resolves uniquely to a different same-type runtime
+// resource. Either value can be copied incorrectly, so core must not guess
+// which one the provider intended. Returning a validation error lets the
+// bounded finding repair turn submit one coherent canonical identity instead
+// of persisting duplicate incidents against sibling resources.
+func (a *patrolFindingCreatorAdapter) validateFindingResourceIdentity(input tools.PatrolFindingInput) error {
+	if a == nil || strings.TrimSpace(input.ResourceID) == "" || strings.TrimSpace(input.ResourceName) == "" {
+		return nil
+	}
+
+	resourceIDToken := canonicalPatrolScopeToken(input.ResourceID)
+	resourceNameToken := canonicalPatrolScopeToken(input.ResourceName)
+	resourceTypeToken := canonicalPatrolScopeToken(input.ResourceType)
+	idMatches := make([]int, 0, 1)
+	nameMatches := make([]int, 0, 1)
+	recordIndex := 0
+
+	patrolVisitRuntimeResources(a.snap, func(record patrolRuntimeResourceRecord) bool {
+		currentIndex := recordIndex
+		recordIndex++
+		if resourceTypeToken != "" && canonicalPatrolScopeToken(record.resourceType) != resourceTypeToken {
+			return true
+		}
+
+		for _, value := range append(append([]string(nil), record.ids...), record.aliases...) {
+			if canonicalPatrolScopeToken(value) == resourceIDToken {
+				idMatches = append(idMatches, currentIndex)
+				break
+			}
+		}
+		for _, alias := range record.aliases {
+			if canonicalPatrolScopeToken(alias) == resourceNameToken {
+				nameMatches = append(nameMatches, currentIndex)
+				break
+			}
+		}
+		return true
+	})
+
+	if len(idMatches) == 1 && len(nameMatches) == 1 && idMatches[0] != nameMatches[0] {
+		return fmt.Errorf(
+			"resource identity mismatch: resource_id %q and resource_name %q identify different %s resources; submit one canonical ID/name pair",
+			input.ResourceID,
+			input.ResourceName,
+			input.ResourceType,
+		)
+	}
+	return nil
+}
+
 // canonicalizeUnknownFindingResource repairs only a redundant model-authored
 // ID transcription error. The submitted ID must match no current resource,
 // while the exact submitted name must resolve to one same-type runtime record
diff --git a/internal/ai/patrol_findings_additional_test.go b/internal/ai/patrol_findings_additional_test.go
index 17972a5eb..e5cc828db 100644
--- a/internal/ai/patrol_findings_additional_test.go
+++ b/internal/ai/patrol_findings_additional_test.go
@@ -1658,6 +1658,40 @@ func TestPatrolFindingAdapterRepairsOnlyUnknownIDsFromUniqueScopedIdentity(t *te
 	}
 }
 
+func TestPatrolFindingAdapterRejectsKnownSiblingIDAndNameMismatch(t *testing.T) {
+	state := newPatrolRuntimeState(models.StateSnapshot{
+		DockerHosts: []models.DockerHost{{
+			ID: "docker-host-1",
+			Containers: []models.DockerContainer{
+				{ID: "app-container-healthy", Name: "control", State: "running", Health: "healthy"},
+				{ID: "app-container-unhealthy", Name: "existing", State: "running", Health: "unhealthy"},
+			},
+		}},
+	})
+	ps := NewPatrolService(nil, nil)
+	adapter := newPatrolFindingCreatorAdapterState(ps, state)
+	adapter.setFindingScope([]string{"app-container-healthy", "app-container-unhealthy"})
+
+	input := tools.PatrolFindingInput{
+		ResourceID: "app-container-healthy", ResourceName: "existing", ResourceType: "app-container",
+		Key: "health-check-failed", Severity: "warning", Category: "reliability",
+		Title: "Container health check is unhealthy", Description: "The existing container is unhealthy.",
+		Impact: "Requests may fail.", Recommendation: "Inspect the health check.",
+		Evidence: "Current provider health for existing is unhealthy.",
+	}
+	if _, isNew, err := adapter.CreateFinding(input); err == nil || isNew || !strings.Contains(err.Error(), "resource identity mismatch") {
+		t.Fatalf("mismatched sibling report = (%t, %v), want identity validation error", isNew, err)
+	}
+	if active := ps.findings.GetActive(FindingSeverityInfo); len(active) != 0 {
+		t.Fatalf("mismatched sibling report persisted findings: %+v", active)
+	}
+
+	input.ResourceID = "app-container-unhealthy"
+	if findingID, isNew, err := adapter.CreateFinding(input); err != nil || !isNew || findingID == "" {
+		t.Fatalf("coherent canonical report = (%q, %t, %v), want new finding", findingID, isNew, err)
+	}
+}
+
 func TestPatrolFindingAdapterCanAssessSeededRuntimeFindingDuringScopedRun(t *testing.T) {
 	state := newPatrolRuntimeState(models.StateSnapshot{
 		VMs: []models.VM{{ID: "vm-requested", Name: "requested", VMID: 501}},