cmd/core-runtime/main.go

@@ -1780,6 +1780,9 @@ func renderResearchReply(query string, result epistemics.ResearchResult, researc
 		}
 	}
 	if len(lines) == 0 {
+		if identifiers := requestedResearchIdentifiers(query); len(identifiers) > 0 {
+			return "Не нашёл проверяемых данных о «" + strings.Join(identifiers, "», «") + "». Возможно, название написано иначе; пришлите ссылку или уточните написание, и я проверю.", false
+		}
 		return "Проверяемых данных пока не найдено. Могу повторить поиск или уточнить, что именно проверить.", false
 	}
 	if isInternetStatusQuery(query) {
@@ -1849,7 +1852,7 @@ func researchFindingMatchesIntent(query string, finding epistemics.ResearchFindi
 // Identifiers are detected by their syntax, not by a catalogue of providers or
 // entities, so the rule stays valid as user vocabulary changes.
 func findingContainsRequestedIdentifier(query string, finding epistemics.ResearchFinding) bool {
-	identifiers := regexp.MustCompile(`(?i)[a-z0-9][a-z0-9._-]{3,}`).FindAllString(query, -1)
+	identifiers := requestedResearchIdentifiers(query)
 	if len(identifiers) == 0 {
 		return true
 	}
@@ -1862,6 +1865,10 @@ func findingContainsRequestedIdentifier(query string, finding epistemics.Researc
 	return true
 }
 
+func requestedResearchIdentifiers(query string) []string {
+	return regexp.MustCompile(`(?i)[a-z0-9][a-z0-9._-]{3,}`).FindAllString(query, -1)
+}
+
 // nearestFlightRouteTerms retains only the two endpoint-shaped terms from a
 // structured flight search. It has no city or provider vocabulary: endpoint
 // relevance is determined from the request itself.

cmd/core-runtime/main_test.go

@@ -65,7 +65,7 @@ func TestResearchReplyRejectsGenericLandingPageForConcreteIdentifier(t *testing.
 		Excerpt: epistemics.SourceExcerpt{Text: "Широкий ассортимент товаров и услуг."},
 	}}}
 	reply, backed := renderResearchReply("на WB бренд marka-wear", result, nil)
-	if backed || !strings.Contains(reply, "Проверяемых данных") {
+	if backed || !strings.Contains(reply, "marka-wear") || !strings.Contains(reply, "уточните написание") {
 		t.Fatalf("generic page was presented as a brand result: %q", reply)
 	}
 }