diff --git a/llm_normalizer/backend/dist/services/assistantLivingChatRuntimeAdapter.js b/llm_normalizer/backend/dist/services/assistantLivingChatRuntimeAdapter.js
index 670b8a9..c30c9c8 100644
--- a/llm_normalizer/backend/dist/services/assistantLivingChatRuntimeAdapter.js
+++ b/llm_normalizer/backend/dist/services/assistantLivingChatRuntimeAdapter.js
@@ -12,6 +12,37 @@ function hasPriorAssistantTurn(items) {
 function buildDeterministicSmalltalkLeadReply() {
     return "\u041f\u0440\u0438\u0432\u0435\u0442! \u0412\u0441\u0451 \u043d\u043e\u0440\u043c\u0430\u043b\u044c\u043d\u043e.";
 }
+function asRecord(value) {
+    return value && typeof value === "object" && !Array.isArray(value) ? value : null;
+}
+function firstMeaningEntityLabel(assistantTurnMeaning) {
+    const candidates = Array.isArray(assistantTurnMeaning?.explicit_entity_candidates)
+        ? assistantTurnMeaning?.explicit_entity_candidates
+        : [];
+    for (const candidate of candidates) {
+        const record = asRecord(candidate);
+        const value = typeof record?.value === "string" ? record.value.trim() : "";
+        if (value.length > 0) {
+            return value;
+        }
+    }
+    return null;
+}
+function buildUnsupportedCurrentTurnMeaningBoundaryReply(input) {
+    const family = typeof input.assistantTurnMeaning?.unsupported_but_understood_family === "string"
+        ? input.assistantTurnMeaning.unsupported_but_understood_family
+        : null;
+    const entityLabel = firstMeaningEntityLabel(input.assistantTurnMeaning);
+    if (family === "counterparty_value_or_turnover") {
+        const entityPart = entityLabel ? ` \u043f\u043e \u00ab${entityLabel}\u00bb` : "";
+        return [
+            `\u042f \u043f\u043e\u043d\u044f\u043b \u0432\u043e\u043f\u0440\u043e\u0441: \u043d\u0443\u0436\u0435\u043d \u043e\u0431\u043e\u0440\u043e\u0442${entityPart}.`,
+            "\u0422\u043e\u0447\u043d\u044b\u0439 \u043c\u0430\u0440\u0448\u0440\u0443\u0442 \u0434\u043b\u044f \u0442\u0430\u043a\u043e\u0433\u043e \u0440\u0430\u0441\u0447\u0451\u0442\u0430 \u0435\u0449\u0451 \u043d\u0435 \u043f\u043e\u0434\u043a\u043b\u044e\u0447\u0451\u043d, \u043f\u043e\u044d\u0442\u043e\u043c\u0443 \u044f \u043d\u0435 \u0431\u0443\u0434\u0443 \u043f\u043e\u0434\u0441\u0442\u0430\u0432\u043b\u044f\u0442\u044c \u043f\u0440\u043e\u0448\u043b\u044b\u0435 \u0434\u043e\u043a\u0443\u043c\u0435\u043d\u0442\u044b \u0438\u043b\u0438 \u0441\u0442\u0430\u0440\u043e\u0433\u043e \u043a\u043e\u043d\u0442\u0440\u0430\u0433\u0435\u043d\u0442\u0430.",
+            "\u041c\u043e\u0433\u0443 \u043f\u043e\u043a\u0430 \u043d\u0430\u0434\u0451\u0436\u043d\u043e \u043f\u043e\u043a\u0430\u0437\u0430\u0442\u044c \u0434\u043e\u043a\u0443\u043c\u0435\u043d\u0442\u044b, \u0434\u043e\u0433\u043e\u0432\u043e\u0440\u044b \u0438\u043b\u0438 \u0431\u0430\u043d\u043a\u043e\u0432\u0441\u043a\u0438\u0435 \u043e\u043f\u0435\u0440\u0430\u0446\u0438\u0438 \u043f\u043e \u044d\u0442\u043e\u043c\u0443 \u043a\u043e\u043d\u0442\u0440\u0430\u0433\u0435\u043d\u0442\u0443."
+        ].join(" ");
+    }
+    return "\u042f \u043f\u043e\u043d\u044f\u043b \u0441\u043c\u044b\u0441\u043b \u043d\u043e\u0432\u043e\u0433\u043e \u0432\u043e\u043f\u0440\u043e\u0441\u0430, \u043d\u043e \u0442\u043e\u0447\u043d\u044b\u0439 \u043c\u0430\u0440\u0448\u0440\u0443\u0442 \u0434\u043b\u044f \u043d\u0435\u0433\u043e \u0435\u0449\u0451 \u043d\u0435 \u043f\u043e\u0434\u043a\u043b\u044e\u0447\u0451\u043d. \u041d\u0435 \u0431\u0443\u0434\u0443 \u043f\u0435\u0440\u0435\u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u0442\u044c \u0441\u0442\u0430\u0440\u044b\u0439 \u043e\u0442\u0432\u0435\u0442 \u043a\u0430\u043a \u0431\u0443\u0434\u0442\u043e \u044d\u0442\u043e \u0442\u043e \u0436\u0435 \u0441\u0430\u043c\u043e\u0435.";
+}
 async function runAssistantLivingChatRuntime(input) {
     const userMessage = String(input.userMessage ?? "");
     const organizationAuthority = (0, assistantContinuityPolicy_1.resolveAssistantOrganizationAuthority)({
@@ -43,6 +74,13 @@ async function runAssistantLivingChatRuntime(input) {
     let knownOrganizations = [...organizationAuthority.knownOrganizations];
     let selectedOrganization = organizationAuthority.selectedOrganization;
     let activeOrganization = organizationAuthority.activeOrganization;
+    const addressRuntimeMeta = (input.addressRuntimeMeta && typeof input.addressRuntimeMeta === "object"
+        ? input.addressRuntimeMeta
+        : {});
+    const orchestrationContract = asRecord(addressRuntimeMeta.orchestrationContract);
+    const assistantTurnMeaning = asRecord(orchestrationContract?.assistant_turn_meaning);
+    const unsupportedCurrentTurnMeaningBoundary = Boolean(input.modeDecision?.reason === "unsupported_current_turn_meaning_boundary" ||
+        orchestrationContract?.unsupported_current_turn_meaning_boundary === true);
     const memoryRecapContext = (0, assistantMemoryRecapPolicy_1.resolveAssistantLivingChatMemoryContext)({
         modeDecisionReason: input.modeDecision?.reason ?? null,
         sessionItems: input.sessionItems
@@ -72,6 +110,12 @@ async function runAssistantLivingChatRuntime(input) {
                 ? "deterministic_data_scope_contract_live"
                 : "deterministic_data_scope_contract";
     }
+    else if (unsupportedCurrentTurnMeaningBoundary) {
+        chatText = buildUnsupportedCurrentTurnMeaningBoundaryReply({
+            assistantTurnMeaning
+        });
+        livingChatSource = "deterministic_unsupported_current_turn_boundary";
+    }
     else if ((selectedOrganization || activeOrganization) && input.hasOrganizationFactLookupSignal(userMessage)) {
         const scopedOrganization = selectedOrganization ?? activeOrganization ?? null;
         chatText = input.buildAssistantOrganizationFactBoundaryReply(scopedOrganization);
@@ -184,9 +228,6 @@ async function runAssistantLivingChatRuntime(input) {
             debug: null
         };
     }
-    const addressRuntimeMeta = (input.addressRuntimeMeta && typeof input.addressRuntimeMeta === "object"
-        ? input.addressRuntimeMeta
-        : {});
     const predecomposeContract = addressRuntimeMeta.predecomposeContract && typeof addressRuntimeMeta.predecomposeContract === "object"
         ? addressRuntimeMeta.predecomposeContract
         : null;
diff --git a/llm_normalizer/backend/src/services/assistantLivingChatRuntimeAdapter.ts b/llm_normalizer/backend/src/services/assistantLivingChatRuntimeAdapter.ts
index 7206e2e..9ec70a4 100644
--- a/llm_normalizer/backend/src/services/assistantLivingChatRuntimeAdapter.ts
+++ b/llm_normalizer/backend/src/services/assistantLivingChatRuntimeAdapter.ts
@@ -78,6 +78,43 @@ function buildDeterministicSmalltalkLeadReply(): string {
   return "\u041f\u0440\u0438\u0432\u0435\u0442! \u0412\u0441\u0451 \u043d\u043e\u0440\u043c\u0430\u043b\u044c\u043d\u043e.";
 }
 
+function asRecord(value: unknown): Record<string, unknown> | null {
+  return value && typeof value === "object" && !Array.isArray(value) ? (value as Record<string, unknown>) : null;
+}
+
+function firstMeaningEntityLabel(assistantTurnMeaning: Record<string, unknown> | null): string | null {
+  const candidates = Array.isArray(assistantTurnMeaning?.explicit_entity_candidates)
+    ? assistantTurnMeaning?.explicit_entity_candidates
+    : [];
+  for (const candidate of candidates) {
+    const record = asRecord(candidate);
+    const value = typeof record?.value === "string" ? record.value.trim() : "";
+    if (value.length > 0) {
+      return value;
+    }
+  }
+  return null;
+}
+
+function buildUnsupportedCurrentTurnMeaningBoundaryReply(input: {
+  assistantTurnMeaning: Record<string, unknown> | null;
+}): string {
+  const family =
+    typeof input.assistantTurnMeaning?.unsupported_but_understood_family === "string"
+      ? input.assistantTurnMeaning.unsupported_but_understood_family
+      : null;
+  const entityLabel = firstMeaningEntityLabel(input.assistantTurnMeaning);
+  if (family === "counterparty_value_or_turnover") {
+    const entityPart = entityLabel ? ` \u043f\u043e \u00ab${entityLabel}\u00bb` : "";
+    return [
+      `\u042f \u043f\u043e\u043d\u044f\u043b \u0432\u043e\u043f\u0440\u043e\u0441: \u043d\u0443\u0436\u0435\u043d \u043e\u0431\u043e\u0440\u043e\u0442${entityPart}.`,
+      "\u0422\u043e\u0447\u043d\u044b\u0439 \u043c\u0430\u0440\u0448\u0440\u0443\u0442 \u0434\u043b\u044f \u0442\u0430\u043a\u043e\u0433\u043e \u0440\u0430\u0441\u0447\u0451\u0442\u0430 \u0435\u0449\u0451 \u043d\u0435 \u043f\u043e\u0434\u043a\u043b\u044e\u0447\u0451\u043d, \u043f\u043e\u044d\u0442\u043e\u043c\u0443 \u044f \u043d\u0435 \u0431\u0443\u0434\u0443 \u043f\u043e\u0434\u0441\u0442\u0430\u0432\u043b\u044f\u0442\u044c \u043f\u0440\u043e\u0448\u043b\u044b\u0435 \u0434\u043e\u043a\u0443\u043c\u0435\u043d\u0442\u044b \u0438\u043b\u0438 \u0441\u0442\u0430\u0440\u043e\u0433\u043e \u043a\u043e\u043d\u0442\u0440\u0430\u0433\u0435\u043d\u0442\u0430.",
+      "\u041c\u043e\u0433\u0443 \u043f\u043e\u043a\u0430 \u043d\u0430\u0434\u0451\u0436\u043d\u043e \u043f\u043e\u043a\u0430\u0437\u0430\u0442\u044c \u0434\u043e\u043a\u0443\u043c\u0435\u043d\u0442\u044b, \u0434\u043e\u0433\u043e\u0432\u043e\u0440\u044b \u0438\u043b\u0438 \u0431\u0430\u043d\u043a\u043e\u0432\u0441\u043a\u0438\u0435 \u043e\u043f\u0435\u0440\u0430\u0446\u0438\u0438 \u043f\u043e \u044d\u0442\u043e\u043c\u0443 \u043a\u043e\u043d\u0442\u0440\u0430\u0433\u0435\u043d\u0442\u0443."
+    ].join(" ");
+  }
+  return "\u042f \u043f\u043e\u043d\u044f\u043b \u0441\u043c\u044b\u0441\u043b \u043d\u043e\u0432\u043e\u0433\u043e \u0432\u043e\u043f\u0440\u043e\u0441\u0430, \u043d\u043e \u0442\u043e\u0447\u043d\u044b\u0439 \u043c\u0430\u0440\u0448\u0440\u0443\u0442 \u0434\u043b\u044f \u043d\u0435\u0433\u043e \u0435\u0449\u0451 \u043d\u0435 \u043f\u043e\u0434\u043a\u043b\u044e\u0447\u0451\u043d. \u041d\u0435 \u0431\u0443\u0434\u0443 \u043f\u0435\u0440\u0435\u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u0442\u044c \u0441\u0442\u0430\u0440\u044b\u0439 \u043e\u0442\u0432\u0435\u0442 \u043a\u0430\u043a \u0431\u0443\u0434\u0442\u043e \u044d\u0442\u043e \u0442\u043e \u0436\u0435 \u0441\u0430\u043c\u043e\u0435.";
+}
+
 export async function runAssistantLivingChatRuntime(
   input: AssistantLivingChatRuntimeInput
 ): Promise<AssistantLivingChatRuntimeOutput> {
@@ -112,6 +149,15 @@ export async function runAssistantLivingChatRuntime(
   let knownOrganizations = [...organizationAuthority.knownOrganizations];
   let selectedOrganization = organizationAuthority.selectedOrganization;
   let activeOrganization = organizationAuthority.activeOrganization;
+  const addressRuntimeMeta = (input.addressRuntimeMeta && typeof input.addressRuntimeMeta === "object"
+    ? input.addressRuntimeMeta
+    : {}) as Record<string, unknown>;
+  const orchestrationContract = asRecord(addressRuntimeMeta.orchestrationContract);
+  const assistantTurnMeaning = asRecord(orchestrationContract?.assistant_turn_meaning);
+  const unsupportedCurrentTurnMeaningBoundary = Boolean(
+    input.modeDecision?.reason === "unsupported_current_turn_meaning_boundary" ||
+      orchestrationContract?.unsupported_current_turn_meaning_boundary === true
+  );
   const memoryRecapContext = resolveAssistantLivingChatMemoryContext({
     modeDecisionReason: input.modeDecision?.reason ?? null,
     sessionItems: input.sessionItems
@@ -142,6 +188,11 @@ export async function runAssistantLivingChatRuntime(
       dataScopeProbe?.status === "resolved"
         ? "deterministic_data_scope_contract_live"
         : "deterministic_data_scope_contract";
+  } else if (unsupportedCurrentTurnMeaningBoundary) {
+    chatText = buildUnsupportedCurrentTurnMeaningBoundaryReply({
+      assistantTurnMeaning
+    });
+    livingChatSource = "deterministic_unsupported_current_turn_boundary";
   } else if ((selectedOrganization || activeOrganization) && input.hasOrganizationFactLookupSignal(userMessage)) {
     const scopedOrganization = selectedOrganization ?? activeOrganization ?? null;
     chatText = input.buildAssistantOrganizationFactBoundaryReply(scopedOrganization);
@@ -254,9 +305,6 @@ export async function runAssistantLivingChatRuntime(
     };
   }
 
-  const addressRuntimeMeta = (input.addressRuntimeMeta && typeof input.addressRuntimeMeta === "object"
-    ? input.addressRuntimeMeta
-    : {}) as Record<string, unknown>;
   const predecomposeContract =
     addressRuntimeMeta.predecomposeContract && typeof addressRuntimeMeta.predecomposeContract === "object"
       ? (addressRuntimeMeta.predecomposeContract as Record<string, unknown>)
diff --git a/llm_normalizer/backend/tests/assistantLivingChatRuntimeAdapter.test.ts b/llm_normalizer/backend/tests/assistantLivingChatRuntimeAdapter.test.ts
index 69d5a2e..9560a38 100644
--- a/llm_normalizer/backend/tests/assistantLivingChatRuntimeAdapter.test.ts
+++ b/llm_normalizer/backend/tests/assistantLivingChatRuntimeAdapter.test.ts
@@ -133,6 +133,42 @@ describe("assistant living chat runtime adapter", () => {
     expect(executeLlmChat).toHaveBeenCalledTimes(1);
   });
 
+  it("builds deterministic boundary for unsupported current-turn business meaning", async () => {
+    const executeLlmChat = vi.fn(async () => "raw-llm");
+    const input = buildRuntimeInput({
+      userMessage:
+        "\u043a\u0430\u043a\u043e\u0439 \u043e\u0431\u043e\u0440\u043e\u0442 \u0431\u044b\u043b \u0441\u0432\u043a",
+      modeDecision: { mode: "chat", reason: "unsupported_current_turn_meaning_boundary" },
+      addressRuntimeMeta: {
+        toolGateReason: "unsupported_current_turn_meaning_boundary",
+        orchestrationContract: {
+          unsupported_current_turn_meaning_boundary: true,
+          assistant_turn_meaning: {
+            unsupported_but_understood_family: "counterparty_value_or_turnover",
+            explicit_entity_candidates: [
+              {
+                type: "counterparty",
+                value: "\u0441\u0432\u043a"
+              }
+            ]
+          }
+        }
+      },
+      executeLlmChat
+    });
+
+    const output = await runAssistantLivingChatRuntime(input);
+
+    expect(output.handled).toBe(true);
+    expect(output.chatText).toContain("\u043d\u0443\u0436\u0435\u043d \u043e\u0431\u043e\u0440\u043e\u0442");
+    expect(output.chatText).toContain("\u00ab\u0441\u0432\u043a\u00bb");
+    expect(output.chatText).toContain("\u043d\u0435 \u0431\u0443\u0434\u0443 \u043f\u043e\u0434\u0441\u0442\u0430\u0432\u043b\u044f\u0442\u044c");
+    expect(output.debug?.living_chat_response_source).toBe(
+      "deterministic_unsupported_current_turn_boundary"
+    );
+    expect(executeLlmChat).not.toHaveBeenCalled();
+  });
+
   it("adds proactive organization offer on first smalltalk turn when multiple organizations are available", async () => {
     const resolveDataScopeProbe = vi.fn(async () => ({
       status: "resolved",