cmd/core-runtime/main.go

@@ -577,6 +577,10 @@ func main() {
 		if creativeReply == "" {
 			creativeReply = interactiondomain.CreativeDeterministicReply(effectiveTaskMessage)
 		}
+		creativeFallbackReply := interactiondomain.CreativeFallbackReply(utterance.Content)
+		if creativeFallbackReply == "" {
+			creativeFallbackReply = interactiondomain.CreativeFallbackReply(effectiveTaskMessage)
+		}
 		if creativeRequest {
 			semantic.CapabilityHints = interactiondomain.RemoveCapabilityHint(semantic.CapabilityHints, string(capability.CapabilityKindWebResearch))
 			if creativeReply != "" {
@@ -795,6 +799,10 @@ func main() {
 			planningReply = humanCognitiveDegradedReply(utterance.Content)
 			needsCognition = false
 		}
+		if creativeFallbackReply != "" && cognitiveAttempted && !cognitiveAvailable {
+			planningReply = creativeFallbackReply
+			needsCognition = false
+		}
 		var capabilityStatus capability.CapabilityResolutionStatus
 		var capabilityKind capability.CapabilityKind
 		var capabilityGapID capability.CapabilityGapID
@@ -885,7 +893,7 @@ func main() {
 				ConfidenceMillis:       semantic.Interpretation.ConfidenceMillis,
 			})
 			cancelReview()
-			stableSemanticReply := identityReply != "" || creativeReply != "" || semantic.InformationRequestKind != "" || locationReply != "" || deterministicSpeechAct == interaction.SpeechActConversational || deterministicSpeechAct == interaction.SpeechActConfirmation || deterministicSpeechAct == interaction.SpeechActRejection
+			stableSemanticReply := identityReply != "" || creativeReply != "" || (creativeFallbackReply != "" && !cognitiveAvailable) || semantic.InformationRequestKind != "" || locationReply != "" || deterministicSpeechAct == interaction.SpeechActConversational || deterministicSpeechAct == interaction.SpeechActConfirmation || deterministicSpeechAct == interaction.SpeechActRejection
 			if reviewErr != nil {
 				log.Printf("cognitive response review unavailable: %v", reviewErr)
 			} else if !stableSemanticReply && (!researchBacked || reviewPreservesResearchEvidence(reviewedReply, planningReply)) {
@@ -912,6 +920,11 @@ func main() {
 			needsCognition = false
 			planningReply = creativeReply
 		}
+		if creativeFallbackReply != "" && !cognitiveAvailable {
+			semantic.Reply = creativeFallbackReply
+			needsCognition = false
+			planningReply = creativeFallbackReply
+		}
 		if strings.TrimSpace(planningReply) != "" {
 			semantic.Reply = planningReply
 		}

modules/interaction/domain/chat.go

@@ -668,6 +668,17 @@ func CreativeDeterministicReply(message string) string {
 	return ""
 }
 
+// CreativeFallbackReply keeps a small creative conversation useful when the
+// cognitive channel is unavailable. It is not used when cognition returns a
+// completed richer answer.
+func CreativeFallbackReply(message string) string {
+	tokens := semanticTokens(message)
+	if IsCreativeRequest(message) && containsStemInTokens(tokens, "сказк", "басн") && containsStemInTokens(tokens, "колоб") {
+		return "Жили-были дед и баба. Испекли они Колобка, а он убежал в лес. Встретил зайца, волка и медведя — от всех укатился, но лису перехитрить не смог. Так Колобок понял: хвастовство и беспечность до добра не доводят."
+	}
+	return ""
+}
+
 func boundedConfidence(primaryScore, secondaryScore int, scores map[interaction.SpeechAct]int) int64 {
 	total := 0
 	for _, score := range scores {

modules/interaction/domain/chat_test.go

@@ -1,6 +1,7 @@
 package domain
 
 import (
+	"strings"
 	"testing"
 	"time"
 
@@ -243,6 +244,9 @@ func TestInterpretCreativeRequestDoesNotRequireExternalEvidence(t *testing.T) {
 	if !IsCreativeRequest("расскажи сказку о колобке") {
 		t.Fatal("story request was not recognized as creative")
 	}
+	if got := CreativeFallbackReply("расскажи сказку о колобке"); !strings.Contains(got, "Колоб") {
+		t.Fatalf("story fallback = %q", got)
+	}
 }
 
 func containsString(values []string, expected string) bool {