diff --git a/apps/backend/chatballs/ai/agent_card_urls.py b/apps/backend/chatballs/ai/agent_card_urls.py
index 6af5b5b..478bd59 100644
--- a/apps/backend/chatballs/ai/agent_card_urls.py
+++ b/apps/backend/chatballs/ai/agent_card_urls.py
@@ -6,6 +6,7 @@ from chatballs.ai import agent_card_views as views
 
 urlpatterns = [
     path("", views.AgentCardListView.as_view(), name="agent-card-list"),
+    path("directory/", views.AgentDirectoryView.as_view(), name="agent-directory"),
     path("<int:agent_id>/", views.AgentCardDetailView.as_view(), name="agent-card-detail"),
     path(
         "<int:agent_id>/activate/",
diff --git a/apps/backend/chatballs/ai/agent_card_views.py b/apps/backend/chatballs/ai/agent_card_views.py
index a585cc4..eaa0847 100644
--- a/apps/backend/chatballs/ai/agent_card_views.py
+++ b/apps/backend/chatballs/ai/agent_card_views.py
@@ -3,7 +3,7 @@
 from __future__ import annotations
 
 from django.core.exceptions import ValidationError
-from django.db.models import Q
+from django.db.models import Count, Q
 from rest_framework.request import Request
 from rest_framework.response import Response
 from rest_framework.views import APIView
@@ -57,6 +57,41 @@ def _audit(request: Request, action: str, channel: Channel, **payload: object) -
     )
 
 
+# Справочник агентов для выпадающих выборов: фильтр библиотеки знаний, привязка
+# материалов к агенту. Только идентификаторы и имя — карточки целиком этим
+# экранам не нужны. Потолок защищает выбор от организации на тысячу агентов:
+# при его достижении выбору нужен серверный поиск, а не молчаливая обрезка.
+AGENT_DIRECTORY_LIMIT = 200
+
+
+class AgentDirectoryView(APIView):
+    permission_classes = [HasCapability]
+    required_capabilities = {"GET": "ai.view"}
+
+    def get(self, request: Request) -> Response:
+        cards = agent_cards_for_context(request.tenant_context).annotate(
+            knowledge_count=Count("ai_agent__knowledge_items", distinct=True)
+        )
+        query = request.query_params.get("q", "").strip()
+        if query:
+            cards = cards.filter(Q(name__icontains=query) | Q(code__icontains=query))
+        items = [
+            {
+                "id": channel.id,
+                "aiAgentId": channel.ai_agent.id if hasattr(channel, "ai_agent") else None,
+                "name": channel.name,
+                "groupName": channel.group.name if channel.group_id else None,
+                "aiStatus": channel.ai_agent.status if hasattr(channel, "ai_agent") else None,
+                "isActive": channel.is_active,
+                "knowledgeCount": channel.knowledge_count,
+            }
+            for channel in cards.order_by("name")[: AGENT_DIRECTORY_LIMIT + 1]
+        ]
+        return Response(
+            {"items": items[:AGENT_DIRECTORY_LIMIT], "hasMore": len(items) > AGENT_DIRECTORY_LIMIT}
+        )
+
+
 class AgentCardListView(APIView):
     permission_classes = [HasCapability]
     required_capabilities = {"GET": "ai.view", "POST": "ai.manage"}
diff --git a/apps/backend/chatballs/ai/knowledge_api_inputs.py b/apps/backend/chatballs/ai/knowledge_api_inputs.py
index 2287d09..0c451f9 100644
--- a/apps/backend/chatballs/ai/knowledge_api_inputs.py
+++ b/apps/backend/chatballs/ai/knowledge_api_inputs.py
@@ -60,10 +60,14 @@ def knowledge_filters(request: Request) -> KnowledgeFilters:
         is_enabled = False
     else:
         raise ValidationError({"isEnabled": "Boolean required"})
+    agents = tuple(
+        int(value) for value in request.query_params.getlist("agent") if value.isdigit()
+    )
     return KnowledgeFilters(
         category_id=_optional_query_id(
             request.query_params.get("category"), "category"
         ),
         is_enabled=is_enabled,
         search=request.query_params.get("search", ""),
+        agent_ids=agents,
     )
diff --git a/apps/backend/chatballs/ai/selectors.py b/apps/backend/chatballs/ai/selectors.py
index 926a131..05224d7 100644
--- a/apps/backend/chatballs/ai/selectors.py
+++ b/apps/backend/chatballs/ai/selectors.py
@@ -1,11 +1,12 @@
 from collections.abc import Sequence
 from dataclasses import dataclass
 
-from django.db.models import Count, Prefetch, Q, QuerySet
+from django.db.models import Count, IntegerField, OuterRef, Prefetch, Q, QuerySet, Subquery, Value
+from django.db.models.functions import Coalesce
 
 from chatballs.ai.agent_knowledge import knowledge_available_to_channel
 from chatballs.ai.knowledge_policy import readable_knowledge, writable_knowledge
-from chatballs.ai.models import AIAgent, Knowledge, KnowledgeCategory
+from chatballs.ai.models import AIAgent, Knowledge, KnowledgeCategory, KnowledgeFragment
 from chatballs.channels.models import Channel
 from chatballs.identity.models import AuditEvent
 from chatballs.identity.policy import has_capability_any_scope
@@ -81,12 +82,32 @@ def _knowledge_base(context: TenantContext) -> QuerySet[Knowledge]:
 
 
 def _with_knowledge_relations(queryset: QuerySet[Knowledge]) -> QuerySet[Knowledge]:
+    # Счётчики — подзапросами, а не join-агрегатами: фильтр по агенту идёт по
+    # той же связи и урезал бы «прикреплено к N агентам» до отфильтрованных.
+    agents_count = Subquery(
+        AIAgent.objects.filter(knowledge_items=OuterRef("pk"))
+        .order_by()
+        .values("knowledge_items")
+        .annotate(total=Count("pk", distinct=True))
+        .values("total"),
+        output_field=IntegerField(),
+    )
+    fragments_count = Subquery(
+        KnowledgeFragment.objects.filter(knowledge_id=OuterRef("pk"))
+        .order_by()
+        .values("knowledge_id")
+        .annotate(total=Count("pk"))
+        .values("total"),
+        output_field=IntegerField(),
+    )
     return (
         queryset.select_related("category")
-        .prefetch_related("attachments")
+        # agents — чтобы диалог прикрепления знал, где материал уже стоит, не
+        # выгружая ради этого все карточки агентов организации.
+        .prefetch_related("attachments", "agents")
         .annotate(
-            agents_count=Count("agents", distinct=True),
-            fragments_count=Count("fragments", distinct=True),
+            agents_count=Coalesce(agents_count, Value(0)),
+            fragments_count=Coalesce(fragments_count, Value(0)),
         )
         .order_by("title")
     )
@@ -173,13 +194,41 @@ class KnowledgeFilters:
     category_id: int | None = None
     is_enabled: bool | None = None
     search: str = ""
+    # Идентификаторы AIAgent из фильтра «Агент» (кадр KB1).
+    agent_ids: tuple[int, ...] = ()
+
+
+def descendant_category_ids(organization_id: int, root_id: int) -> set[int]:
+    """Категория и все вложенные: фильтр библиотеки охватывает ветку целиком."""
+    children: dict[int | None, list[int]] = {}
+    for category_id, parent_id in KnowledgeCategory.objects.filter(
+        organization_id=organization_id
+    ).values_list("id", "parent_id"):
+        children.setdefault(parent_id, []).append(category_id)
+    found: set[int] = set()
+    pending = [root_id]
+    while pending:
+        current = pending.pop()
+        if current in found:
+            continue
+        found.add(current)
+        pending.extend(children.get(current, []))
+    return found
 
 
 def apply_knowledge_filters(
-    queryset: QuerySet[Knowledge], filters: KnowledgeFilters
+    queryset: QuerySet[Knowledge], filters: KnowledgeFilters, *, organization_id: int
 ) -> QuerySet[Knowledge]:
+    """Фильтры библиотеки знаний целиком на сервере: ветка категорий, агент,
+    состояние и поиск. Раньше ветку и агента отбирал браузер по всему набору."""
     if filters.category_id is not None:
-        queryset = queryset.filter(category_id=filters.category_id)
+        queryset = queryset.filter(
+            category_id__in=descendant_category_ids(
+                organization_id=organization_id, root_id=filters.category_id
+            )
+        )
+    if filters.agent_ids:
+        queryset = queryset.filter(agents__id__in=filters.agent_ids)
     if filters.is_enabled is not None:
         queryset = queryset.filter(is_enabled=filters.is_enabled)
     search = filters.search.strip()
diff --git a/apps/backend/chatballs/ai/serializers.py b/apps/backend/chatballs/ai/serializers.py
index ed7b029..d20809a 100644
--- a/apps/backend/chatballs/ai/serializers.py
+++ b/apps/backend/chatballs/ai/serializers.py
@@ -44,6 +44,9 @@ def knowledge_payload(knowledge: Knowledge, *, include_content: bool = True) ->
         "isEnabled": knowledge.is_enabled,
         "attachments": [attachment_payload(attachment) for attachment in knowledge.attachments.all()],
         "agentsCount": getattr(knowledge, "agents_count", None),
+        # Идентификаторы агентов, к которым материал прикреплён: по ним диалог
+        # показывает, что будет пропущено, ещё до применения.
+        "agentIds": [agent.id for agent in knowledge.agents.all()],
         "fragmentsCount": getattr(knowledge, "fragments_count", None),
         "createdAt": knowledge.created_at.isoformat(),
         "updatedAt": knowledge.updated_at.isoformat(),
diff --git a/apps/backend/chatballs/ai/test_knowledge_list.py b/apps/backend/chatballs/ai/test_knowledge_list.py
new file mode 100644
index 0000000..eb2ce99
--- /dev/null
+++ b/apps/backend/chatballs/ai/test_knowledge_list.py
@@ -0,0 +1,141 @@
+"""Библиотека знаний: страница и фильтры на сервере.
+
+Раньше список отдавался целиком, а ветку категорий и фильтр по агенту отбирал
+браузер — значит, фильтр видел ровно то, что успело загрузиться.
+"""
+
+from django.test import TestCase
+
+from chatballs.ai.knowledge_categories import create_category
+from chatballs.ai.knowledge_services import KnowledgeInput, create_knowledge
+from chatballs.ai.models import AIAgent, AIAgentStatus
+from chatballs.channels.models import Channel
+from chatballs.identity.bootstrap import bootstrap_owner
+from chatballs.testing import TenantAPIClient, system_tenant_context
+
+PAGE_SIZE = 25
+
+
+class KnowledgeListPaginationTests(TestCase):
+    def setUp(self) -> None:
+        result = bootstrap_owner(email="owner@example.com", password="temporary-password")
+        self.organization = result.organization
+        self.context = system_tenant_context(self.organization)
+        self.root = create_category(context=self.context, name="Тарифы")
+        self.child = create_category(context=self.context, name="Скидки", parent=self.root)
+        self.other = create_category(context=self.context, name="Доставка")
+        self.items = [
+            self._knowledge(
+                f"Материал {index:02d}",
+                category=self.child if index < 4 else self.other,
+                enabled=index != 0,
+            )
+            for index in range(30)
+        ]
+        channel = Channel.objects.create(
+            organization=self.organization, code="agent-a", name="Агент A"
+        )
+        self.agent = AIAgent.objects.create(
+            channel=channel, name="Агент A", status=AIAgentStatus.ACTIVE
+        )
+        self.attached = self.items[:3]
+        self.agent.knowledge_items.set(self.attached)
+        self.client = TenantAPIClient()
+        self.client.force_authenticate(result.owner)
+
+    def _knowledge(self, title: str, *, category, enabled: bool = True):
+        return create_knowledge(
+            context=self.context,
+            data=KnowledgeInput(
+                title=title,
+                description="",
+                content=f"{title} — текст",
+                is_enabled=enabled,
+                category_id=category.id,
+            ),
+        )
+
+    def _page(self, query: str = "") -> dict:
+        response = self.client.get(f"/api/v1/ai/knowledge/{query}")
+        self.assertEqual(response.status_code, 200)
+        return response.json()
+
+    def test_first_page_is_bounded(self) -> None:
+        page = self._page()
+        self.assertEqual(len(page["items"]), PAGE_SIZE)
+        self.assertEqual(page["total"], 30)
+        self.assertEqual(page["pageCount"], 2)
+
+    def test_pages_cover_the_library_without_repeats(self) -> None:
+        seen = [item["id"] for item in self._page()["items"]]
+        seen += [item["id"] for item in self._page("?page=2")["items"]]
+        self.assertEqual(len(set(seen)), 30)
+
+    def test_category_filter_covers_the_branch(self) -> None:
+        # Выбран родитель — материалы вложенного раздела тоже попадают.
+        self.assertEqual(self._page(f"?category={self.root.id}")["total"], 4)
+
+    def test_agent_filter_is_applied_before_the_page(self) -> None:
+        page = self._page(f"?agent={self.agent.id}")
+        self.assertEqual(page["total"], len(self.attached))
+
+    def test_agent_filter_does_not_shrink_counters(self) -> None:
+        # Счётчик «прикреплено к N агентам» считается подзапросом: фильтр по
+        # агенту идёт по той же связи и не должен его урезать.
+        item = self._page(f"?agent={self.agent.id}")["items"][0]
+        self.assertEqual(item["agentsCount"], 1)
+        self.assertEqual(item["agentIds"], [self.agent.id])
+
+    def test_enabled_and_search_filters_are_applied_before_the_page(self) -> None:
+        self.assertEqual(self._page("?isEnabled=false")["total"], 1)
+        self.assertEqual(self._page("?search=Материал 07")["total"], 1)
+
+    def test_detail_lists_attached_agents(self) -> None:
+        response = self.client.get(f"/api/v1/ai/knowledge/{self.attached[0].id}/")
+        self.assertEqual(response.status_code, 200)
+        agents = response.json()["knowledge"]["agents"]
+        self.assertEqual([agent["id"] for agent in agents], [self.agent.id])
+        self.assertEqual(agents[0]["aiStatus"], AIAgentStatus.ACTIVE)
+
+
+class AgentDirectoryTests(TestCase):
+    """Справочник агентов для выпадающих выборов: имена и счётчики, не карточки."""
+
+    def setUp(self) -> None:
+        result = bootstrap_owner(email="owner@example.com", password="temporary-password")
+        self.organization = result.organization
+        self.context = system_tenant_context(self.organization)
+        category = create_category(context=self.context, name="Общее")
+        knowledge = create_knowledge(
+            context=self.context,
+            data=KnowledgeInput(
+                title="Возврат",
+                description="",
+                content="Условия возврата",
+                is_enabled=True,
+                category_id=category.id,
+            ),
+        )
+        channel = Channel.objects.create(
+            organization=self.organization, code="agent-b", name="Агент B"
+        )
+        agent = AIAgent.objects.create(
+            channel=channel, name="Агент B", status=AIAgentStatus.ACTIVE
+        )
+        agent.knowledge_items.add(knowledge)
+        self.agent = agent
+        self.client = TenantAPIClient()
+        self.client.force_authenticate(result.owner)
+
+    def test_directory_returns_compact_rows_with_counts(self) -> None:
+        response = self.client.get("/api/v1/agents/directory/")
+        self.assertEqual(response.status_code, 200)
+        payload = response.json()
+        row = next(item for item in payload["items"] if item["aiAgentId"] == self.agent.id)
+        self.assertEqual(row["name"], "Агент B")
+        self.assertEqual(row["knowledgeCount"], 1)
+        self.assertFalse(payload["hasMore"])
+
+    def test_directory_search_narrows_rows(self) -> None:
+        payload = self.client.get("/api/v1/agents/directory/?q=Агент B").json()
+        self.assertEqual([item["name"] for item in payload["items"]], ["Агент B"])
diff --git a/apps/backend/chatballs/ai/test_knowledge_selectors.py b/apps/backend/chatballs/ai/test_knowledge_selectors.py
index c0cbfb5..b5ec246 100644
--- a/apps/backend/chatballs/ai/test_knowledge_selectors.py
+++ b/apps/backend/chatballs/ai/test_knowledge_selectors.py
@@ -19,19 +19,19 @@ class KnowledgeSelectorTests(KnowledgePolicyTestBase):
         base = knowledge_for_employee(context=self.admin_context)
         search_ids = set(
             apply_knowledge_filters(
-                base, KnowledgeFilters(search="support")
+                base, KnowledgeFilters(search="support"), organization_id=self.organization.id
             ).values_list("id", flat=True)
         )
         self.assertEqual(search_ids, {self.support_only.id})
         disabled_ids = set(
             apply_knowledge_filters(
-                base, KnowledgeFilters(is_enabled=False)
+                base, KnowledgeFilters(is_enabled=False), organization_id=self.organization.id
             ).values_list("id", flat=True)
         )
         self.assertEqual(disabled_ids, {self.disabled.id})
         category_ids = set(
             apply_knowledge_filters(
-                base, KnowledgeFilters(category_id=self.products.id)
+                base, KnowledgeFilters(category_id=self.products.id), organization_id=self.organization.id
             ).values_list("id", flat=True)
         )
         self.assertEqual(
@@ -45,7 +45,7 @@ class KnowledgeSelectorTests(KnowledgePolicyTestBase):
         )
         employee_base = knowledge_for_employee(context=self.employee_context)
         self.assertEqual(
-            list(apply_knowledge_filters(employee_base, KnowledgeFilters())), []
+            list(apply_knowledge_filters(employee_base, KnowledgeFilters(), organization_id=self.organization.id)), []
         )
 
     def test_category_counts_are_computed_after_authorization(self) -> None:
diff --git a/apps/backend/chatballs/ai/views.py b/apps/backend/chatballs/ai/views.py
index b67c8a6..15adaf3 100644
--- a/apps/backend/chatballs/ai/views.py
+++ b/apps/backend/chatballs/ai/views.py
@@ -5,6 +5,7 @@ from rest_framework.response import Response
 from rest_framework.views import APIView
 
 from chatballs.ai.api_errors import validation_error_response
+from chatballs.api.pagination import page_payload, paginate
 from chatballs.ai.knowledge_api_inputs import knowledge_filters, knowledge_input
 from chatballs.ai.knowledge_import import import_knowledge_documents
 from chatballs.ai.knowledge_policy import (
@@ -20,6 +21,9 @@ from chatballs.ai.knowledge_services import (
 )
 from chatballs.ai.indexing import reindex_knowledge
 from chatballs.ai.models import Knowledge
+
+# Библиотека знаний плотная — своя страница (кадр KB1).
+KNOWLEDGE_PAGE_SIZE = 25
 from chatballs.ai.selectors import (
     apply_knowledge_filters,
     knowledge_editors,
@@ -73,21 +77,30 @@ class KnowledgeListCreateView(_KnowledgeBaseView):
             filters = knowledge_filters(request)
         except ValidationError as error:
             return _validation_error(error)
-        items = list(apply_knowledge_filters(knowledge_for_context(request.tenant_context), filters))
+        page = paginate(
+            apply_knowledge_filters(
+                knowledge_for_context(request.tenant_context),
+                filters,
+                organization_id=self._org(request).id,
+            ),
+            request.query_params,
+            default_size=KNOWLEDGE_PAGE_SIZE,
+        )
         # Автор последней правки нужен в списке: он стоит под датой в колонке
         # «Обновлено» (кадр KB1). Один запрос на всю страницу, не N+1.
         editors = knowledge_editors(
             organization_id=self._org(request).id,
-            knowledge_ids=[item.id for item in items],
+            knowledge_ids=[item.id for item in page.items],
         )
-        payloads = []
-        for item in items:
-            payload = knowledge_payload(item, include_content=False)
+
+        def payload(item):
+            data = knowledge_payload(item, include_content=False)
             editor = editors.get(item.id)
             if editor:
-                payload["updatedBy"] = editor
-            payloads.append(payload)
-        return Response({"items": payloads})
+                data["updatedBy"] = editor
+            return data
+
+        return Response(page_payload(page, payload))
 
     def post(self, request: Request) -> Response:
         try:
@@ -130,6 +143,19 @@ class KnowledgeDetailView(_KnowledgeBaseView):
         ).get(knowledge.id)
         if editor:
             payload["updatedBy"] = editor
+        # К каким агентам знание прикреплено — считает сервер: карточке больше
+        # не нужен весь список агентов организации, чтобы это выяснить.
+        payload["agents"] = [
+            {
+                "id": agent.id,
+                "name": agent.channel.name,
+                "groupName": agent.channel.group.name if agent.channel.group_id else None,
+                "aiStatus": agent.status,
+            }
+            for agent in knowledge.agents.select_related("channel", "channel__group").order_by(
+                "channel__name"
+            )
+        ]
         return Response({"knowledge": payload})
 
     def patch(self, request: Request, knowledge_id: int) -> Response:
diff --git a/apps/internal-ui/src/App.tsx b/apps/internal-ui/src/App.tsx
index 9c3a6b7..b15daa4 100644
--- a/apps/internal-ui/src/App.tsx
+++ b/apps/internal-ui/src/App.tsx
@@ -6,7 +6,7 @@ import { buildTheme } from "@chatballs/ui";
 import { applyAppearance, DEFAULT_ACCENT, resolvedDark } from "./shared/appearance";
 
 import { api, setActiveOrganization } from "./api/client";
-import { fetchAllAgents } from "./features/agents/model";
+import { fetchAgentDirectory } from "./features/agents/model";
 import { canAccess, defaultRoute, isManager } from "./auth/access";
 import { activateOrganization, clearOrganizationPreference } from "./auth/session";
 import { AuthChangePassword, AuthLogin, AuthPasswordRecovery, AuthResetPassword, AuthSetup, AuthTotpCode, AuthTotpSetup } from "./features/auth/AuthScreens";
@@ -14,7 +14,7 @@ import { Shell } from "./layout/Shell";
 import { pathFromRoute, routeFromPath } from "./router";
 import { ErrorScreen, LoadingScreen, PermissionScreen } from "./shared/ui";
 import { useRouteNavigation } from "./useRouteNavigation";
-import type { AgentCard } from "./features/agents/model";
+import type { AgentRef } from "./features/agents/model";
 import type { AppData, AuthChallenge, AuthenticatedUser, EmployeeGroup, SessionUser } from "./types";
 
 export function App() {
@@ -61,9 +61,9 @@ export function App() {
       const groups = manager
         ? await api<{ items: EmployeeGroup[] }>("/api/v1/company/groups/")
         : { items: [] };
-      let agents: AgentCard[] = [];
+      let agents: AgentRef[] = [];
       if (user && canAccess(user, "agents")) {
-        agents = (await fetchAllAgents()).items;
+        agents = (await fetchAgentDirectory()).items;
       }
       setData({ groups: groups.items, agents });
     } catch {
diff --git a/apps/internal-ui/src/features/agents/AgentsPage.tsx b/apps/internal-ui/src/features/agents/AgentsPage.tsx
index 2e85dbc..10725d7 100644
--- a/apps/internal-ui/src/features/agents/AgentsPage.tsx
+++ b/apps/internal-ui/src/features/agents/AgentsPage.tsx
@@ -180,7 +180,6 @@ export function AgentsPage({
           ))}
           {agents.pageCount > 1 && (
             <Pagination
-              note={`Показано ${agents.items.length} из ${agents.total}`}
               page={agents.page}
               pageCount={agents.pageCount}
               onPage={agents.setPage}
diff --git a/apps/internal-ui/src/features/agents/model.ts b/apps/internal-ui/src/features/agents/model.ts
index 02bbe6f..27e0702 100644
--- a/apps/internal-ui/src/features/agents/model.ts
+++ b/apps/internal-ui/src/features/agents/model.ts
@@ -75,12 +75,23 @@ export function fetchAgentsPage(
   return api<PagedPayload<AgentCard>>(`/api/v1/agents/?${params.toString()}`);
 }
 
-/** Полный набор карточек для экранов, которым нужны связи агентов со знаниями
- *  (библиотека знаний считает по ним прикрепления). Ограничен одной страницей
- *  предельного размера: этим экранам нужен серверный контракт со счётчиками,
- *  пока он не сделан — держим потолок явным, а не молчаливым. */
-export function fetchAllAgents(): Promise<{ items: AgentCard[] }> {
-  return api<PagedPayload<AgentCard>>("/api/v1/agents/?pageSize=100");
+/** Справочник агентов для выпадающих выборов: фильтр библиотеки знаний,
+ *  привязка материалов, выбор агента в диалогах. Карточки целиком этим экранам
+ *  не нужны — им хватает имени и состояния AI. */
+export type AgentRef = {
+  id: number;
+  aiAgentId: number | null;
+  name: string;
+  groupName: string | null;
+  aiStatus: string | null;
+  isActive: boolean;
+  /** Сколько материалов прикреплено к агенту — считает сервер. */
+  knowledgeCount: number;
+};
+
+export function fetchAgentDirectory(query = ""): Promise<{ items: AgentRef[]; hasMore: boolean }> {
+  const suffix = query.trim() ? `?q=${encodeURIComponent(query.trim())}` : "";
+  return api<{ items: AgentRef[]; hasMore: boolean }>(`/api/v1/agents/directory/${suffix}`);
 }
 
 export function fetchAgent(agentId: number): Promise<{ agent: AgentCard }> {
diff --git a/apps/internal-ui/src/features/ai/agentOptions.ts b/apps/internal-ui/src/features/ai/agentOptions.ts
index 2661fbb..c6f184d 100644
--- a/apps/internal-ui/src/features/ai/agentOptions.ts
+++ b/apps/internal-ui/src/features/ai/agentOptions.ts
@@ -1,13 +1,16 @@
 import type { AgentLinkOption } from "../../shared/content-library/AgentLinkDialog";
-import type { AgentCard } from "../agents/model";
+import type { AgentRef } from "../agents/model";
 
 /** Агенты для массового прикрепления материалов (библиотека знаний общая,
  * ADR-CHATBALLS-0041 §8). Bulk-эндпоинты знаний адресуют AIAgent, поэтому id —
  * aiAgentId карточки. */
-export function agentLinkOptions(agents: AgentCard[]): AgentLinkOption[] {
-  return agents.map((agent) => ({
-    id: agent.aiAgentId,
-    name: agent.name,
-    groupName: agent.groupName,
-  }));
+export function agentLinkOptions(agents: AgentRef[]): AgentLinkOption[] {
+  // У канала без AI-агента прикреплять материалы не к чему.
+  return agents
+    .filter((agent): agent is AgentRef & { aiAgentId: number } => agent.aiAgentId !== null)
+    .map((agent) => ({
+      id: agent.aiAgentId,
+      name: agent.name,
+      groupName: agent.groupName,
+    }));
 }
diff --git a/apps/internal-ui/src/features/ai/knowledge/KnowledgeAgentDialog.tsx b/apps/internal-ui/src/features/ai/knowledge/KnowledgeAgentDialog.tsx
index 2267081..6c68129 100644
--- a/apps/internal-ui/src/features/ai/knowledge/KnowledgeAgentDialog.tsx
+++ b/apps/internal-ui/src/features/ai/knowledge/KnowledgeAgentDialog.tsx
@@ -5,7 +5,7 @@ import { Icon } from "../../../shared/icons";
 import { Segmented } from "../../../shared/ui";
 import { Button } from "../../../shared/ui-controls";
 import { pluralRu } from "../../../shared/utils";
-import type { AgentCard } from "../../agents/model";
+import type { AgentRef } from "../../agents/model";
 import type { KnowledgeItem } from "./types";
 
 // Прикрепление знаний к агенту (дизайн-базлайн v2, кадр KB3). Один агент за
@@ -20,24 +20,27 @@ const KNOWLEDGE_FORMS: [string, string, string] = ["знание", "знания
 
 type Skip = { item: KnowledgeItem; reason: string };
 
-function skipsFor(items: KnowledgeItem[], agent: AgentCard | null, mode: Mode): Skip[] {
-  if (!agent) return [];
-  const attached = new Set(agent.knowledge.map((item) => item.id));
+// Где материал уже стоит, знает сам материал: список agentIds приходит вместе
+// со страницей библиотеки, а не собирается по карточкам всех агентов.
+function skipsFor(items: KnowledgeItem[], agent: AgentRef | null, mode: Mode): Skip[] {
+  if (!agent || agent.aiAgentId === null) return [];
+  const agentId = agent.aiAgentId;
   const skips: Skip[] = [];
   items.forEach((item) => {
+    const attached = (item.agentIds ?? []).includes(agentId);
     if (mode === "attach") {
-      if (attached.has(item.id)) skips.push({ item, reason: "уже прикреплён к этому агенту" });
+      if (attached) skips.push({ item, reason: "уже прикреплён к этому агенту" });
       else if (!item.isEnabled) skips.push({ item, reason: "выключен в ответах" });
-    } else if (!attached.has(item.id)) {
+    } else if (!attached) {
       skips.push({ item, reason: "не прикреплён к этому агенту" });
     }
   });
   return skips;
 }
 
-function agentMeta(agent: AgentCard): string {
+function agentMeta(agent: AgentRef): string {
   if (agent.aiStatus !== "ACTIVE") return "Без AI — знания не используются";
-  return `AI отвечает · ${pluralRu(agent.knowledge.length, KNOWLEDGE_FORMS)} прикреплено`;
+  return `AI отвечает · ${pluralRu(agent.knowledgeCount, KNOWLEDGE_FORMS)} прикреплено`;
 }
 
 export function KnowledgeAgentDialog({
@@ -47,7 +50,7 @@ export function KnowledgeAgentDialog({
   onCancel,
   onSubmit,
 }: {
-  agents: AgentCard[];
+  agents: AgentRef[];
   busy: boolean;
   items: KnowledgeItem[];
   onCancel: () => void;
diff --git a/apps/internal-ui/src/features/ai/knowledge/KnowledgeCardPage.tsx b/apps/internal-ui/src/features/ai/knowledge/KnowledgeCardPage.tsx
index 051cce6..0df8ae7 100644
--- a/apps/internal-ui/src/features/ai/knowledge/KnowledgeCardPage.tsx
+++ b/apps/internal-ui/src/features/ai/knowledge/KnowledgeCardPage.tsx
@@ -7,7 +7,7 @@ import { EmptyState, LoadingState } from "../../../shared/ui";
 import { Button, CopyButton } from "../../../shared/ui-controls";
 import { pluralRu, shortDateTime } from "../../../shared/utils";
 import type { RouteKey } from "../../../types";
-import type { AgentCard } from "../../agents/model";
+import type { AgentRef } from "../../agents/model";
 import { MarkdownContent } from "../../help-center/MarkdownContent";
 import { KnowledgeAgentDialog } from "./KnowledgeAgentDialog";
 import { KnowledgeCategoryDialog } from "./KnowledgeCategoryDialog";
@@ -40,7 +40,7 @@ export function KnowledgeCardPage({
   reloadAgents,
   setRoute,
 }: {
-  agents: AgentCard[];
+  agents: AgentRef[];
   canManage: boolean;
   knowledgeId: number | null;
   openKnowledgeEditor: (knowledgeId: number | null) => void;
@@ -93,7 +93,7 @@ export function KnowledgeCardPage({
 
   const path = knowledgeCategoryPath(catalog.categories, item.category.id);
   const crumbs = path ? path.split(" / ") : [item.category.name];
-  const attached = agentStates(agents, item.id);
+  const attached = agentStates(item.agents ?? []);
   const fragments = item.fragmentsCount ?? 0;
   const characters = (item.content ?? "").length;
 
diff --git a/apps/internal-ui/src/features/ai/knowledge/KnowledgeEditorPage.tsx b/apps/internal-ui/src/features/ai/knowledge/KnowledgeEditorPage.tsx
index 2c41218..277ed45 100644
--- a/apps/internal-ui/src/features/ai/knowledge/KnowledgeEditorPage.tsx
+++ b/apps/internal-ui/src/features/ai/knowledge/KnowledgeEditorPage.tsx
@@ -9,7 +9,7 @@ import {
 import { EmptyState, LoadingState, Segmented } from "../../../shared/ui";
 import { Button } from "../../../shared/ui-controls";
 import type { RouteKey } from "../../../types";
-import type { AgentCard } from "../../agents/model";
+import type { AgentRef } from "../../agents/model";
 import { MarkdownContent } from "../../help-center/MarkdownContent";
 import {
   agentStates,
@@ -77,7 +77,7 @@ export function KnowledgeEditorPage({
   reloadAgents,
   setRoute,
 }: {
-  agents: AgentCard[];
+  agents: AgentRef[];
   canManage: boolean;
   knowledgeId: number | null;
   openKnowledge: (knowledgeId: number) => void;
@@ -158,10 +158,7 @@ export function KnowledgeEditorPage({
 
   const category = catalog.categories.find((item) => item.id === Number(categoryId)) ?? null;
   const categoryPath = category ? knowledgeCategoryPath(catalog.categories, category.id) : "";
-  const attached = useMemo(
-    () => (loaded ? agentStates(agents, loaded.id) : []),
-    [agents, loaded],
-  );
+  const attached = useMemo(() => agentStates(loaded?.agents ?? []), [loaded]);
   const dirty = baseline === null
     ? Boolean(title.trim() || content.trim())
     : baseline.title !== title
diff --git a/apps/internal-ui/src/features/ai/knowledge/KnowledgeLibraryPage.tsx b/apps/internal-ui/src/features/ai/knowledge/KnowledgeLibraryPage.tsx
index 0b95ad0..8f6bb04 100644
--- a/apps/internal-ui/src/features/ai/knowledge/KnowledgeLibraryPage.tsx
+++ b/apps/internal-ui/src/features/ai/knowledge/KnowledgeLibraryPage.tsx
@@ -2,19 +2,18 @@ import { Dropdown } from "antd";
 import { useMemo, useState } from "react";
 
 import { hasCapability } from "../../../auth/access";
+import { Pagination } from "../../../shared/Pagination";
 import { DecisionDialog } from "../../../shared/DecisionDialog";
 import { Icon } from "../../../shared/icons";
 import { LoadingState } from "../../../shared/ui";
 import { Button, FilterDropdown, SearchInput } from "../../../shared/ui-controls";
 import { pluralRu } from "../../../shared/utils";
 import type { RouteKey, SessionUser } from "../../../types";
-import type { AgentCard } from "../../agents/model";
+import type { AgentRef } from "../../agents/model";
 import { KnowledgeAgentDialog } from "./KnowledgeAgentDialog";
 import { KnowledgeBulkBar } from "./KnowledgeBulkBar";
 import { KnowledgeCategoryDialog } from "./KnowledgeCategoryDialog";
-import { KnowledgeTableFooter } from "./KnowledgeTableFooter";
 import {
-  agentsOfKnowledge,
   answerStateLabel,
   categoryBranch,
   categoryRows,
@@ -36,7 +35,6 @@ import { useKnowledgeLibrary } from "./useKnowledgeLibrary";
 // состоянием индекса, дерево категорий 260px, таблица материалов. Панель
 // массовых операций живёт, пока живо выделение.
 
-const PAGE_SIZE = 25;
 const KNOWLEDGE_FORMS: [string, string, string] = ["знание", "знания", "знаний"];
 
 const ANSWER_FILTER = [
@@ -51,7 +49,7 @@ export function KnowledgeLibraryPage({
   setRoute,
   user,
 }: {
-  agents: AgentCard[];
+  agents: AgentRef[];
   openKnowledge: (knowledgeId: number) => void;
   openKnowledgeEditor: (knowledgeId: number | null) => void;
   setRoute: (route: RouteKey) => void;
@@ -59,10 +57,8 @@ export function KnowledgeLibraryPage({
 }) {
   const library = useKnowledgeLibrary();
   const canManage = hasCapability(user, "ai.manage");
-  const [page, setPage] = useState(1);
   const [answerOpen, setAnswerOpen] = useState(false);
   const [agentOpen, setAgentOpen] = useState(false);
-  const [agentFilter, setAgentFilter] = useState<number[]>([]);
   const [attachOpen, setAttachOpen] = useState(false);
   const [movingOpen, setMovingOpen] = useState(false);
   const [deleting, setDeleting] = useState<{ ids: number[]; text: string } | null>(null);
@@ -72,38 +68,19 @@ export function KnowledgeLibraryPage({
   const rows = useMemo(() => categoryRows(library.categories), [library.categories]);
   const selectedCategory = library.filters.category;
 
-  // Фильтр «Агент» и охват вложенных категорий считаются на клиенте: API
-  // знаний фильтрует по одной категории и по состоянию в ответах.
-  const filtered = useMemo(() => {
-    const branch = selectedCategory === undefined
-      ? null
-      : categoryBranch(library.categories, selectedCategory);
-    const attached = agentFilter.length === 0
-      ? null
-      : new Set(agents
-        .filter((agent) => agentFilter.includes(agent.aiAgentId))
-        .flatMap((agent) => agent.knowledge.map((item) => item.id)));
-    return library.items.filter((item) => (
-      (branch === null || branch.has(item.category.id))
-      && (attached === null || attached.has(item.id))
-    ));
-  }, [agentFilter, agents, library.categories, library.items, selectedCategory]);
-
-  const pageCount = Math.max(1, Math.ceil(filtered.length / PAGE_SIZE));
-  const currentPage = Math.min(page, pageCount);
-  const visible = filtered.slice((currentPage - 1) * PAGE_SIZE, currentPage * PAGE_SIZE);
   const selected = [...library.selectedIds];
   const selectedItems = library.items.filter((item) => library.selectedIds.has(item.id));
-  const allVisibleChecked = visible.length > 0 && visible.every((item) => library.selectedIds.has(item.id));
+  const allVisibleChecked = library.items.length > 0 && library.items.every((item) => library.selectedIds.has(item.id));
   const activeCategory = selectedCategory === undefined
     ? null
     : library.categories.find((category) => category.id === selectedCategory) ?? null;
+  const agentFilter = library.filters.agents;
   const filtersActive = Boolean(library.filters.search.trim())
     || library.filters.isEnabled !== undefined
     || agentFilter.length > 0;
 
   const scopeNote = selected.length > 0
-    ? `выбрано ${selected.length} из ${filtered.length}`
+    ? `выбрано ${selected.length} из ${library.total}`
     : activeCategory
       ? `категория «${activeCategory.name}»`
       : "показаны все категории";
@@ -206,7 +183,7 @@ export function KnowledgeLibraryPage({
               className={`knowledge-section-row${selectedCategory === undefined ? " is-active" : ""}`}
               style={{ paddingLeft: 9 }}
               type="button"
-              onClick={() => { library.updateFilter("category", undefined); setPage(1); }}
+              onClick={() => library.updateFilter("category", undefined)}
             >
               <Icon name="folder" size={15} strokeWidth={1.8} />
               <span>Все знания</span>
@@ -218,7 +195,7 @@ export function KnowledgeLibraryPage({
                 key={category.id}
                 style={{ paddingLeft: 9 + depth * 16 }}
                 type="button"
-                onClick={() => { library.updateFilter("category", category.id); setPage(1); }}
+                onClick={() => library.updateFilter("category", category.id)}
               >
                 <span>{category.name}</span>
                 <small>{count}</small>
@@ -241,7 +218,7 @@ export function KnowledgeLibraryPage({
                 className="knowledge-library-search"
                 placeholder="Поиск по заголовку и описанию"
                 value={library.filters.search}
-                onChange={(value) => { library.updateFilter("search", value); setPage(1); }}
+                onChange={(value) => library.updateFilter("search", value)}
               />
               <FilterDropdown
                 caption="В ответах:"
@@ -251,7 +228,6 @@ export function KnowledgeLibraryPage({
                 selected={library.filters.isEnabled === undefined ? [] : [String(library.filters.isEnabled)]}
                 onOpenChange={setAnswerOpen}
                 onSelect={(value) => {
-                  setPage(1);
                   library.updateFilter("isEnabled", library.filters.isEnabled === (value === "true") ? undefined : value === "true");
                 }}
               />
@@ -260,15 +236,14 @@ export function KnowledgeLibraryPage({
                 label={agentFilter.length === 1 ? agents.find((agent) => agent.aiAgentId === agentFilter[0])?.name ?? "Любой" : "Любой"}
                 multiple
                 open={agentOpen}
-                options={agents.map((agent) => ({ value: String(agent.aiAgentId), label: agent.name }))}
+                options={agents.filter((agent) => agent.aiAgentId != null).map((agent) => ({ value: String(agent.aiAgentId), label: agent.name }))}
                 selected={agentFilter.map(String)}
                 onOpenChange={setAgentOpen}
                 onSelect={(value) => {
-                  setPage(1);
                   const id = Number(value);
-                  setAgentFilter((current) => (current.includes(id)
-                    ? current.filter((item) => item !== id)
-                    : [...current, id]));
+                  library.updateFilter("agents", agentFilter.includes(id)
+                    ? agentFilter.filter((item) => item !== id)
+                    : [...agentFilter, id]);
                 }}
               />
               <span className="knowledge-library-toolbar-gap" />
@@ -277,7 +252,7 @@ export function KnowledgeLibraryPage({
 
             {library.itemsLoading ? (
               <LoadingState />
-            ) : visible.length === 0 ? (
+            ) : library.items.length === 0 ? (
               <div className="knowledge-empty">
                 <div>
                   <span className="knowledge-empty-icon"><Icon name="book" size={25} strokeWidth={1.7} /></span>
@@ -326,11 +301,12 @@ export function KnowledgeLibraryPage({
                     </tr>
                   </thead>
                   <tbody>
-                    {visible.map((item) => {
+                    {library.items.map((item) => {
                       const checked = library.selectedIds.has(item.id);
                       const path = knowledgeCategoryPath(library.categories, item.category.id);
                       const parent = path.includes(" / ") ? path.slice(0, path.lastIndexOf(" / ")) : "";
-                      const attachedAgents = agentsOfKnowledge(agents, item.id).length;
+                      // Сколько агентов используют материал — считает сервер.
+                      const attachedAgents = item.agentsCount ?? 0;
                       const menuItems = [
                         { key: "open", label: <button type="button" onClick={() => openKnowledge(item.id)}><Icon name="book" size={15} strokeWidth={1.8} />Открыть знание</button> },
                         ...(canManage ? [
@@ -404,11 +380,11 @@ export function KnowledgeLibraryPage({
                   </tbody>
                 </table>
 
-                <KnowledgeTableFooter
-                  note={`${pluralRu(filtered.length, KNOWLEDGE_FORMS)} · показаны ${visible.length} · агент отвечает только по включённым и прикреплённым`}
-                  page={currentPage}
-                  pageCount={pageCount}
-                  onPageChange={setPage}
+                <Pagination
+                  note={`${pluralRu(library.total, KNOWLEDGE_FORMS)} · показаны ${library.items.length} · агент отвечает только по включённым и прикреплённым`}
+                  page={library.page}
+                  pageCount={library.pageCount}
+                  onPage={library.setPage}
                 />
               </>
             )}
diff --git a/apps/internal-ui/src/features/ai/knowledge/KnowledgeTableFooter.tsx b/apps/internal-ui/src/features/ai/knowledge/KnowledgeTableFooter.tsx
deleted file mode 100644
index 185cda3..0000000
--- a/apps/internal-ui/src/features/ai/knowledge/KnowledgeTableFooter.tsx
+++ /dev/null
@@ -1,47 +0,0 @@
-import type { ReactNode } from "react";
-
-import { Icon } from "../../../shared/icons";
-
-/** Подвал таблицы знаний: подпись слева, страницы справа (кадр KB1).
- *  Стрелки на границах гасятся — как в подвале библиотеки портала. */
-export function KnowledgeTableFooter({
-  note,
-  page,
-  pageCount,
-  onPageChange,
-}: {
-  note: ReactNode;
-  page: number;
-  pageCount: number;
-  onPageChange: (page: number) => void;
-}) {
-  const pages = Array.from({ length: pageCount }, (_, index) => index + 1);
-  return (
-    <div className="knowledge-table-footer">
-      <span>{note}</span>
-      <span className="knowledge-pages">
-        <button
-          aria-label="Предыдущая страница"
-          className="knowledge-page-step"
-          disabled={page <= 1}
-          type="button"
-          onClick={() => onPageChange(page - 1)}
-        >
-          <Icon name="chevronLeft" size={14} strokeWidth={2} />
-        </button>
-        {pages.map((item) => (item === page
-          ? <b key={item}>{item}</b>
-          : <button className="knowledge-page-number" key={item} type="button" onClick={() => onPageChange(item)}>{item}</button>))}
-        <button
-          aria-label="Следующая страница"
-          className="knowledge-page-step"
-          disabled={page >= pageCount}
-          type="button"
-          onClick={() => onPageChange(page + 1)}
-        >
-          <Icon name="chevronRight" size={14} strokeWidth={2} />
-        </button>
-      </span>
-    </div>
-  );
-}
diff --git a/apps/internal-ui/src/features/ai/knowledge/api.test.ts b/apps/internal-ui/src/features/ai/knowledge/api.test.ts
index 73fbe72..f6d6a4a 100644
--- a/apps/internal-ui/src/features/ai/knowledge/api.test.ts
+++ b/apps/internal-ui/src/features/ai/knowledge/api.test.ts
@@ -49,15 +49,19 @@ describe("knowledge API", () => {
       category: 7,
       isEnabled: false,
       search: "тариф Acme",
-    });
+      agents: [3],
+    }, 2);
 
     const url = new URL(fetchMock.mock.calls[0][0], "https://app.example");
     expect(url.pathname).toBe(
       `/api/v1/organizations/${organizationPublicId}/ai/knowledge/`,
     );
+    // Страница и фильтр по агенту тоже уходят на сервер: библиотека постраничная.
     expect(Object.fromEntries(url.searchParams)).toEqual({
       category: "7",
       isEnabled: "false",
+      agent: "3",
+      page: "2",
       search: "тариф Acme",
     });
   });
diff --git a/apps/internal-ui/src/features/ai/knowledge/api.ts b/apps/internal-ui/src/features/ai/knowledge/api.ts
index 76abd46..8365f28 100644
--- a/apps/internal-ui/src/features/ai/knowledge/api.ts
+++ b/apps/internal-ui/src/features/ai/knowledge/api.ts
@@ -1,4 +1,5 @@
 import { api, apiUpload } from "../../../api/client";
+import type { PagedPayload } from "../../../shared/usePagedResource";
 import type {
   AgentCategoryKnowledgeSelectionResult,
   AgentLinkRequest,
@@ -17,17 +18,21 @@ import type {
   KnowledgeUpdateRequest,
 } from "./types";
 
-function knowledgeListPath(filters: KnowledgeListFilters): string {
+function knowledgeListPath(filters: KnowledgeListFilters, page?: number): string {
   const query = new URLSearchParams();
   if (filters.category !== undefined) query.set("category", String(filters.category));
   if (filters.isEnabled !== undefined) query.set("isEnabled", String(filters.isEnabled));
   if (filters.search !== undefined && filters.search !== "") query.set("search", filters.search);
+  for (const agent of filters.agents ?? []) query.append("agent", String(agent));
+  if (page !== undefined) query.set("page", String(page));
   const suffix = query.toString();
   return `/api/v1/ai/knowledge/${suffix ? `?${suffix}` : ""}`;
 }
 
-export function fetchKnowledgeList(filters: KnowledgeListFilters = {}) {
-  return api<{ items: KnowledgeItem[] }>(knowledgeListPath(filters));
+// Библиотека знаний приходит страницей: фильтры и ветка категорий отрабатывают
+// на сервере (кадр KB1).
+export function fetchKnowledgeList(filters: KnowledgeListFilters = {}, page = 1) {
+  return api<PagedPayload<KnowledgeItem>>(knowledgeListPath(filters, page));
 }
 
 export function fetchKnowledgeItem(id: number) {
diff --git a/apps/internal-ui/src/features/ai/knowledge/knowledgeLibraryModel.ts b/apps/internal-ui/src/features/ai/knowledge/knowledgeLibraryModel.ts
index 0d30286..1615b0e 100644
--- a/apps/internal-ui/src/features/ai/knowledge/knowledgeLibraryModel.ts
+++ b/apps/internal-ui/src/features/ai/knowledge/knowledgeLibraryModel.ts
@@ -1,6 +1,5 @@
-import type { AgentCard } from "../../agents/model";
 import { pluralRu, shortDateTime } from "../../../shared/utils";
-import type { KnowledgeAttachment, KnowledgeCategory, KnowledgeItem } from "./types";
+import type { KnowledgeAgentRef, KnowledgeAttachment, KnowledgeCategory, KnowledgeItem } from "./types";
 
 // Экранная модель раздела «База знаний» (дизайн-базлайн v2, кадры KB1–KB9).
 // Отделы упразднены ADR-CHATBALLS-0041, поэтому доступность знания — это флаг
@@ -63,20 +62,18 @@ export function libraryTotals(categories: KnowledgeCategory[], items: KnowledgeI
 }
 
 /** Агенты, которым знание прикреплено явно (карточка и рейка редактора). */
-export function agentsOfKnowledge(agents: AgentCard[], knowledgeId: number): AgentCard[] {
-  return agents.filter((agent) => agent.knowledge.some((item) => item.id === knowledgeId));
-}
-
 export type AgentState = {
-  agent: AgentCard;
+  agent: KnowledgeAgentRef;
   /** «AI отвечает» / «AI выключен у агента» — подпись строки агента. */
   meta: string;
   /** Участвует ли знание в ответах именно этого агента. */
   answering: boolean;
 };
 
-export function agentStates(agents: AgentCard[], knowledgeId: number): AgentState[] {
-  return agentsOfKnowledge(agents, knowledgeId).map((agent) => ({
+/** Агенты материала приходят из его карточки: считать их по всем карточкам
+ *  агентов организации больше не нужно. */
+export function agentStates(agents: KnowledgeAgentRef[]): AgentState[] {
+  return agents.map((agent) => ({
     agent,
     meta: agent.aiStatus === "ACTIVE" ? "AI отвечает" : "AI выключен у агента",
     answering: agent.aiStatus === "ACTIVE",
diff --git a/apps/internal-ui/src/features/ai/knowledge/styles-library.css b/apps/internal-ui/src/features/ai/knowledge/styles-library.css
index 7e46e97..32f317b 100644
--- a/apps/internal-ui/src/features/ai/knowledge/styles-library.css
+++ b/apps/internal-ui/src/features/ai/knowledge/styles-library.css
@@ -507,72 +507,6 @@
 
 /* --- Подвал таблицы --- */
 
-.knowledge-table-footer {
-  display: flex;
-  flex: none;
-  align-items: center;
-  justify-content: space-between;
-  gap: 16px;
-  padding: 11px 24px;
-  border-top: 1px solid var(--n-8);
-  background: var(--n-10);
-  color: var(--n-4);
-  font-size: 12.5px;
-}
-
-.knowledge-pages {
-  display: flex;
-  align-items: center;
-  gap: 6px;
-}
-
-.knowledge-pages b {
-  display: inline-flex;
-  min-width: 28px;
-  height: 28px;
-  align-items: center;
-  justify-content: center;
-  border-radius: 7px;
-  background: var(--primary-bg);
-  color: var(--primary-text);
-  font-size: 12.5px;
-  font-weight: 600;
-}
-
-.knowledge-page-number,
-.knowledge-page-step {
-  display: inline-flex;
-  min-width: 28px;
-  height: 28px;
-  align-items: center;
-  justify-content: center;
-  padding: 0 8px;
-  border: 1px solid var(--n-7);
-  border-radius: 7px;
-  background: var(--surface-card);
-  color: var(--n-3);
-  font-family: inherit;
-  font-size: 12.5px;
-  cursor: pointer;
-}
-
-.knowledge-page-step { width: 28px; padding: 0; }
-
-.knowledge-page-number:hover,
-.knowledge-page-step:not(:disabled):hover { border-color: var(--n-6); color: var(--n-2); }
-
-.knowledge-page-step:disabled { opacity: 0.45; cursor: default; }
-
-/* --- Пустая категория (кадр KB9) --- */
-
-.knowledge-empty {
-  display: flex;
-  flex: 1;
-  align-items: center;
-  justify-content: center;
-  padding: 40px;
-}
-
 .knowledge-empty > div {
   width: 480px;
   text-align: center;
diff --git a/apps/internal-ui/src/features/ai/knowledge/types.ts b/apps/internal-ui/src/features/ai/knowledge/types.ts
index 42fcaa0..7107172 100644
--- a/apps/internal-ui/src/features/ai/knowledge/types.ts
+++ b/apps/internal-ui/src/features/ai/knowledge/types.ts
@@ -29,6 +29,11 @@ export type KnowledgeItem = {
   isEnabled: boolean;
   attachments: KnowledgeAttachment[];
   agentsCount: number | null;
+  // К каким агентам материал прикреплён — считает сервер: диалогу прикрепления
+  // больше не нужен весь список карточек агентов.
+  agentIds?: number[];
+  // Только в карточке материала: агенты с их состоянием AI.
+  agents?: KnowledgeAgentRef[];
   createdBy?: string;
   // Кто последним правил знание — подпись под датой в колонке «Обновлено».
   updatedBy?: string;
@@ -37,10 +42,19 @@ export type KnowledgeItem = {
   updatedAt: string;
 };
 
+export type KnowledgeAgentRef = {
+  id: number;
+  name: string;
+  groupName: string | null;
+  aiStatus: string | null;
+};
+
 export type KnowledgeListFilters = {
   category?: number;
   isEnabled?: boolean;
   search?: string;
+  // Идентификаторы AIAgent: ветка категорий и агент отбираются на сервере.
+  agents?: number[];
 };
 
 export type KnowledgeCreateRequest = {
diff --git a/apps/internal-ui/src/features/ai/knowledge/useKnowledgeLibrary.ts b/apps/internal-ui/src/features/ai/knowledge/useKnowledgeLibrary.ts
index 30a8382..2b182ed 100644
--- a/apps/internal-ui/src/features/ai/knowledge/useKnowledgeLibrary.ts
+++ b/apps/internal-ui/src/features/ai/knowledge/useKnowledgeLibrary.ts
@@ -1,35 +1,34 @@
-import { useCallback, useEffect, useRef, useState } from "react";
+import { useCallback, useEffect, useMemo, useState } from "react";
 
+import { useDebounced } from "../../../shared/useDebounced";
+import { usePagedResource } from "../../../shared/usePagedResource";
 import {
   fetchKnowledgeCategories,
   fetchKnowledgeList,
   type KnowledgeCategory,
-  type KnowledgeItem,
-  type KnowledgeListFilters,
 } from "./model";
 
+// Библиотека знаний: страница, ветка категорий, агент, состояние и поиск —
+// всё на сервере. Раньше ветку и агента отбирал браузер по всему набору,
+// поэтому список приходилось запрашивать целиком.
+
 export type KnowledgeLibraryFilterState = {
   category?: number;
   isEnabled?: boolean;
   search: string;
+  /** Идентификаторы AIAgent из фильтра «Агент». */
+  agents: number[];
 };
 
+const EMPTY_FILTERS: KnowledgeLibraryFilterState = { search: "", agents: [] };
+
 export function useKnowledgeLibrary() {
-  const [items, setItems] = useState<KnowledgeItem[]>([]);
   const [categories, setCategories] = useState<KnowledgeCategory[]>([]);
-  const [filters, setFilters] = useState<KnowledgeLibraryFilterState>({ search: "" });
-  const [debouncedSearch, setDebouncedSearch] = useState("");
-  const [itemsLoading, setItemsLoading] = useState(true);
+  const [filters, setFilters] = useState<KnowledgeLibraryFilterState>(EMPTY_FILTERS);
   const [categoriesLoading, setCategoriesLoading] = useState(true);
-  const [itemsError, setItemsError] = useState(false);
   const [categoriesError, setCategoriesError] = useState(false);
   const [selectedIds, setSelectedIds] = useState<Set<number>>(() => new Set());
-  const requestId = useRef(0);
-
-  useEffect(() => {
-    const timeout = window.setTimeout(() => setDebouncedSearch(filters.search.trim()), 250);
-    return () => window.clearTimeout(timeout);
-  }, [filters.search]);
+  const settledSearch = useDebounced(filters.search.trim());
 
   const reloadCategories = useCallback(async () => {
     setCategoriesLoading(true);
@@ -44,20 +43,17 @@ export function useKnowledgeLibrary() {
     }
   }, []);
 
-  const reloadItems = useCallback(async (activeFilters: KnowledgeListFilters) => {
-    const activeRequest = ++requestId.current;
-    setItemsLoading(true);
-    setItemsError(false);
-    try {
-      const payload = await fetchKnowledgeList(activeFilters);
-      if (activeRequest !== requestId.current) return;
-      setItems(payload.items);
-    } catch {
-      if (activeRequest === requestId.current) setItemsError(true);
-    } finally {
-      if (activeRequest === requestId.current) setItemsLoading(false);
-    }
-  }, []);
+  const request = useMemo(
+    () => ({
+      category: filters.category,
+      isEnabled: filters.isEnabled,
+      search: settledSearch,
+      agents: filters.agents,
+    }),
+    [filters.agents, filters.category, filters.isEnabled, settledSearch],
+  );
+  const load = useCallback((page: number) => fetchKnowledgeList(request, page), [request]);
+  const page = usePagedResource(load, request, "Не удалось загрузить знания");
 
   useEffect(() => {
     void reloadCategories();
@@ -73,14 +69,6 @@ export function useKnowledgeLibrary() {
     }
   }, [categories, categoriesLoading, filters.category]);
 
-  useEffect(() => {
-    void reloadItems({
-      category: filters.category,
-      isEnabled: filters.isEnabled,
-      search: debouncedSearch,
-    });
-  }, [debouncedSearch, filters.category, filters.isEnabled, reloadItems]);
-
   const updateFilter = useCallback(<TKey extends keyof KnowledgeLibraryFilterState>(
     key: TKey,
     value: KnowledgeLibraryFilterState[TKey],
@@ -102,6 +90,7 @@ export function useKnowledgeLibrary() {
   /** Действие из меню строки работает над одним знанием: выбор заменяется. */
   const selectOnly = useCallback((knowledgeId: number) => setSelectedIds(new Set([knowledgeId])), []);
 
+  const items = page.items;
   const toggleVisible = useCallback(() => {
     setSelectedIds((current) => {
       const visibleIds = items.map((item) => item.id);
@@ -113,15 +102,8 @@ export function useKnowledgeLibrary() {
   }, [items]);
 
   const reload = useCallback(async () => {
-    await Promise.all([
-      reloadCategories(),
-      reloadItems({
-        category: filters.category,
-        isEnabled: filters.isEnabled,
-        search: debouncedSearch,
-      }),
-    ]);
-  }, [debouncedSearch, filters, reloadCategories, reloadItems]);
+    await Promise.all([reloadCategories(), page.reload()]);
+  }, [page, reloadCategories]);
 
   return {
     categories,
@@ -130,8 +112,12 @@ export function useKnowledgeLibrary() {
     clearSelected,
     filters,
     items,
-    itemsError,
-    itemsLoading,
+    itemsError: Boolean(page.errorText),
+    itemsLoading: page.loading,
+    page: page.page,
+    pageCount: page.pageCount,
+    total: page.total,
+    setPage: page.setPage,
     reload,
     reloadCategories,
     selectOnly,
diff --git a/apps/internal-ui/src/features/ai/useAiAgents.ts b/apps/internal-ui/src/features/ai/useAiAgents.ts
index 043d2b0..2ef1361 100644
--- a/apps/internal-ui/src/features/ai/useAiAgents.ts
+++ b/apps/internal-ui/src/features/ai/useAiAgents.ts
@@ -1,9 +1,9 @@
 import { useCallback, useEffect, useState } from "react";
 
-import { fetchAllAgents, type AgentCard } from "../agents/model";
+import { fetchAgentDirectory, type AgentRef } from "../agents/model";
 
 export function useAiAgents() {
-  const [agents, setAgents] = useState<AgentCard[]>([]);
+  const [agents, setAgents] = useState<AgentRef[]>([]);
   const [loading, setLoading] = useState(true);
   const [error, setError] = useState(false);
 
@@ -11,7 +11,7 @@ export function useAiAgents() {
     setLoading(true);
     setError(false);
     try {
-      const agentsResponse = await fetchAllAgents();
+      const agentsResponse = await fetchAgentDirectory();
       setAgents(agentsResponse.items);
     } catch {
       setError(true);
diff --git a/apps/internal-ui/src/features/employees/EmployeesListPage.tsx b/apps/internal-ui/src/features/employees/EmployeesListPage.tsx
index 3d56cdd..50f7b72 100644
--- a/apps/internal-ui/src/features/employees/EmployeesListPage.tsx
+++ b/apps/internal-ui/src/features/employees/EmployeesListPage.tsx
@@ -93,7 +93,6 @@ export function EmployeesPage({ groups, openEmployee, user }: {
       {employees.pageCount > 1 && (
         <Pagination
           className="employees-pagination"
-          note={`Показано ${employees.items.length} из ${employees.total}`}
           page={employees.page}
           pageCount={employees.pageCount}
           onPage={employees.setPage}
diff --git a/apps/internal-ui/src/features/sales/SalesClientsPage.tsx b/apps/internal-ui/src/features/sales/SalesClientsPage.tsx
index 2db1d5c..44104c3 100644
--- a/apps/internal-ui/src/features/sales/SalesClientsPage.tsx
+++ b/apps/internal-ui/src/features/sales/SalesClientsPage.tsx
@@ -49,7 +49,7 @@ export function SalesClientsPage({ openClient, openIntegrations }: { openClient:
         <SalesClientsEmpty onOpenIntegrations={openIntegrations} />
       ) : (
         <>
-          <SalesClientsFilters clients={clients} agents={agents.map((agent) => ({ id: agent.id, code: agent.code, name: agent.name }))} />
+          <SalesClientsFilters clients={clients} agents={agents.map((agent) => ({ id: agent.id, name: agent.name }))} />
           <SalesClientsTable clients={clients} openClient={openClient} />
         </>
       )}
diff --git a/apps/internal-ui/src/features/sales/clients/SalesClientsFilters.tsx b/apps/internal-ui/src/features/sales/clients/SalesClientsFilters.tsx
index a066810..fc8b14f 100644
--- a/apps/internal-ui/src/features/sales/clients/SalesClientsFilters.tsx
+++ b/apps/internal-ui/src/features/sales/clients/SalesClientsFilters.tsx
@@ -1,5 +1,8 @@
 import { FilterDropdown, SearchInput } from "../../../shared/ui-controls";
-import { channelOptions, type ClientAgentRef } from "./model";
+import { channelOptions } from "./model";
+
+/** Агент в фильтре: только то, что рисует выпадающий список. */
+export type AgentFilterOption = { id: number; name: string };
 import type { SalesClientsState } from "./useSalesClients";
 
 // Фильтры списка (кадры K1/K2): поиск, «Все каналы», «Все агенты», чип
@@ -7,7 +10,7 @@ import type { SalesClientsState } from "./useSalesClients";
 
 // Агенты для фильтра приходят из справочника агентов: список контактов теперь
 // постраничный, и собрать их по загруженной странице нельзя.
-export function SalesClientsFilters({ clients, agents }: { clients: SalesClientsState; agents: ClientAgentRef[] }) {
+export function SalesClientsFilters({ clients, agents }: { clients: SalesClientsState; agents: AgentFilterOption[] }) {
   return (
     <div className="sales-clients-filterbar">
       <SearchInput
diff --git a/apps/internal-ui/src/types.ts b/apps/internal-ui/src/types.ts
index ca8a4e3..908743d 100644
--- a/apps/internal-ui/src/types.ts
+++ b/apps/internal-ui/src/types.ts
@@ -1,4 +1,4 @@
-import type { AgentCard } from "./features/agents/model";
+import type { AgentRef } from "./features/agents/model";
 
 // Роли SPEC-CHATBALLS-0031 §3: OWNER и ADMIN идентичны (владельца нельзя удалить),
 // EMPLOYEE работает только в чате; видимость диалогов — по группам (ADR-CHATBALLS-0043).
@@ -105,5 +105,5 @@ export type RouteKey = "administrationAudit" | "employeeDetail" | "employees" |
 
 export type AppData = {
   groups: EmployeeGroup[];
-  agents: AgentCard[];
+  agents: AgentRef[];
 };