diff --git a/docs/backlog/01_execution_backlog.md b/docs/backlog/01_execution_backlog.md
index 3da1ee0..ec383e9 100644
--- a/docs/backlog/01_execution_backlog.md
+++ b/docs/backlog/01_execution_backlog.md
@@ -45,11 +45,11 @@
 ## Package E: Delivery
 
 - [x] typed worker registration schema
-- [ ] task event DTO normalization
+- [x] task event DTO normalization
 - [ ] confirmation cards
-- [ ] progress cards
+- [x] progress cards
 - [ ] artifact cards
-- [ ] error cards
+- [x] error cards
 
 ## Package F: Validation
 
diff --git a/docs/contracts/API_CONTRACTS.md b/docs/contracts/API_CONTRACTS.md
index 1991f8d..37d6552 100644
--- a/docs/contracts/API_CONTRACTS.md
+++ b/docs/contracts/API_CONTRACTS.md
@@ -26,7 +26,14 @@
   "task_id": "task_1",
   "response_type": "answer | task_started | confirmation_required | error",
   "message": "string",
-  "cards": []
+  "cards": [
+    {
+      "type": "plan_card"
+    },
+    {
+      "type": "progress_card"
+    }
+  ]
 }
 ```
 
@@ -53,7 +60,8 @@
   "progress": {
     "completed": 2,
     "total": 5
-  }
+  },
+  "cards": []
 }
 ```
 
@@ -66,9 +74,18 @@ WebSocket может быть добавлен как secondary adapter, но co
 ```json
 {
   "event": "node_started",
-  "task_id": "task_1",
-  "node_id": "node_3",
-  "timestamp": "..."
+  "data": {
+    "event_id": "evt_1",
+    "event_type": "node_started",
+    "task_id": "task_1",
+    "node_id": "node_3",
+    "timestamp": "...",
+    "payload": {},
+    "card": {
+      "type": "progress_card_ref",
+      "task_id": "task_1"
+    }
+  }
 }
 ```
 
diff --git a/docs/ui/USER_INTERFACE.md b/docs/ui/USER_INTERFACE.md
index 83d3767..32f5e0e 100644
--- a/docs/ui/USER_INTERFACE.md
+++ b/docs/ui/USER_INTERFACE.md
@@ -309,6 +309,20 @@ syntax_check: success
 }
 ```
 
+## Backend Status
+
+Сейчас backend уже формирует:
+
+- `plan_card`
+- `progress_card`
+- `error_card`
+- normalized task event DTO with optional card references
+
+Следующие карточки остаются следующими шагами:
+
+- `confirmation_card`
+- `artifact_card`
+
 ## Принцип
 
 Пользователь должен всегда понимать:
diff --git a/src/ai_orchestrator/delivery/http/app.py b/src/ai_orchestrator/delivery/http/app.py
index 1eab816..a5f7fe3 100644
--- a/src/ai_orchestrator/delivery/http/app.py
+++ b/src/ai_orchestrator/delivery/http/app.py
@@ -25,6 +25,12 @@ from ai_orchestrator.application.services.workers import (
     WorkerService,
 )
 from ai_orchestrator.config import AppSettings
+from ai_orchestrator.delivery.http.presenters import (
+    build_error_card,
+    build_plan_card,
+    build_progress_card,
+    build_task_event_dto,
+)
 from ai_orchestrator.delivery.http.schemas import (
     ChatRequest,
     ChatResponse,
@@ -32,6 +38,7 @@ from ai_orchestrator.delivery.http.schemas import (
     ConfirmationRejectRequest,
     CreateTaskRequestSchema,
     TaskActionRequest,
+    TaskEventDto,
     TaskStatusResponse,
     WorkerDispatchRequest,
     WorkerDispatchResponse,
@@ -134,12 +141,16 @@ def create_app(settings: AppSettings | None = None) -> FastAPI:
         )
         graph = orchestrator.plan_task(task.task_id)
         execution_engine.execute_ready_nodes(task=task, graph=graph)
+        cards = [
+            build_plan_card(task, graph),
+            build_progress_card(task, graph),
+        ]
         return ChatResponse(
             conversation_id=task.conversation_id or "conv_default",
             task_id=task.task_id,
             response_type="task_started",
             message="Task accepted and planned.",
-            cards=[{"type": "plan_card", "task_id": task.task_id}],
+            cards=cards,
         )
 
     @app.post("/tasks", response_model=TaskStatusResponse)
@@ -154,11 +165,16 @@ def create_app(settings: AppSettings | None = None) -> FastAPI:
         )
         graph = orchestrator.plan_task(task.task_id)
         execution_engine.execute_ready_nodes(task=task, graph=graph)
+        cards = [
+            build_plan_card(task, graph),
+            build_progress_card(task, graph),
+        ]
         return TaskStatusResponse(
             task_id=task.task_id,
             status=task.status.value,
             current_node=task.current_node_id,
             progress={"completed": 0, "total": len(graph.nodes)},
+            cards=cards,
         )
 
     @app.get("/tasks/{task_id}", response_model=TaskStatusResponse)
@@ -173,6 +189,7 @@ def create_app(settings: AppSettings | None = None) -> FastAPI:
             status=task.status.value,
             current_node=task.current_node_id,
             progress={"completed": completed, "total": len(graph.nodes)},
+            cards=[build_progress_card(task, graph)],
         )
 
     @app.get("/tasks/{task_id}/events")
@@ -181,15 +198,10 @@ def create_app(settings: AppSettings | None = None) -> FastAPI:
 
         async def iterator():
             for event in events:
+                dto = TaskEventDto.model_validate(build_task_event_dto(event))
                 yield {
                     "event": event.event_type,
-                    "data": {
-                        "event_id": event.event_id,
-                        "task_id": event.task_id,
-                        "node_id": event.node_id,
-                        "timestamp": event.occurred_at.isoformat(),
-                        "payload": event.payload,
-                    },
+                    "data": dto.model_dump(),
                 }
 
         return EventSourceResponse(iterator())
@@ -230,6 +242,7 @@ def create_app(settings: AppSettings | None = None) -> FastAPI:
             status=task.status.value,
             current_node=task.current_node_id,
             progress={"completed": completed, "total": len(graph.nodes)},
+            cards=[build_progress_card(task, graph)],
         )
 
     @app.post("/tasks/{task_id}/cancel", response_model=TaskStatusResponse)
@@ -244,6 +257,14 @@ def create_app(settings: AppSettings | None = None) -> FastAPI:
             status=task.status.value,
             current_node=task.current_node_id,
             progress={"completed": completed, "total": len(graph.nodes)},
+            cards=[
+                build_progress_card(task, graph),
+                build_error_card(
+                    task_id=task.task_id,
+                    title="Task cancelled",
+                    message=payload.reason or "cancelled",
+                ),
+            ],
         )
 
     @app.get("/workers", response_model=WorkerListResponse)
diff --git a/src/ai_orchestrator/delivery/http/presenters.py b/src/ai_orchestrator/delivery/http/presenters.py
new file mode 100644
index 0000000..a6179a5
--- /dev/null
+++ b/src/ai_orchestrator/delivery/http/presenters.py
@@ -0,0 +1,123 @@
+from __future__ import annotations
+
+from typing import Any
+
+from ai_orchestrator.domain.events import DomainEvent
+from ai_orchestrator.domain.models import ConfirmationRequest, ExecutionGraph, Task
+
+
+def build_plan_card(task: Task, graph: ExecutionGraph) -> dict[str, Any]:
+    return {
+        "type": "plan_card",
+        "task_id": task.task_id,
+        "title": "Execution Plan",
+        "goal": task.goal,
+        "steps": [
+            {
+                "node_id": node.node_id,
+                "node_type": node.node_type.value,
+                "status": node.status.value,
+                "dependencies": node.dependencies,
+            }
+            for node in graph.nodes
+        ],
+        "actions": ["run", "edit_plan", "run_step_by_step", "use_strong_model", "use_local_only"],
+    }
+
+
+def build_progress_card(task: Task, graph: ExecutionGraph) -> dict[str, Any]:
+    completed = sum(1 for node in graph.nodes if node.status.value == "completed")
+    return {
+        "type": "progress_card",
+        "task_id": task.task_id,
+        "status": task.status.value,
+        "current_node": task.current_node_id,
+        "progress": {"completed": completed, "total": len(graph.nodes)},
+        "steps": [
+            {
+                "node_id": node.node_id,
+                "node_type": node.node_type.value,
+                "status": node.status.value,
+                "attempts": node.attempts,
+            }
+            for node in graph.nodes
+        ],
+    }
+
+
+def build_confirmation_card(confirmation: ConfirmationRequest) -> dict[str, Any]:
+    return {
+        "type": "confirmation_card",
+        "task_id": confirmation.task_id,
+        "confirmation_id": confirmation.confirmation_id,
+        "node_id": confirmation.node_id,
+        "status": confirmation.status.value,
+        "decision": confirmation.decision.decision.value,
+        "reason": confirmation.decision.reason,
+        "preview": confirmation.decision.preview,
+        "actions": [
+            "approve_once",
+            "approve_task",
+            "approve_project",
+            "reject",
+            "edit_policy",
+        ],
+    }
+
+
+def build_artifact_card(
+    *,
+    task_id: str,
+    artifact_type: str,
+    title: str,
+    data: dict[str, Any],
+) -> dict[str, Any]:
+    return {
+        "type": "artifact_card",
+        "task_id": task_id,
+        "artifact_type": artifact_type,
+        "title": title,
+        "data": data,
+    }
+
+
+def build_error_card(
+    *,
+    task_id: str,
+    title: str,
+    message: str,
+    details: dict[str, Any] | None = None,
+) -> dict[str, Any]:
+    return {
+        "type": "error_card",
+        "task_id": task_id,
+        "title": title,
+        "message": message,
+        "details": details or {},
+        "actions": ["retry", "show_log", "stop_task"],
+    }
+
+
+def build_task_event_dto(event: DomainEvent) -> dict[str, Any]:
+    payload = dict(event.payload)
+    card: dict[str, Any] | None = None
+    if event.event_type == "confirmation_requested":
+        card = {
+            "type": "confirmation_card_ref",
+            "confirmation_id": payload.get("confirmation_id"),
+            "task_id": event.task_id,
+        }
+    elif event.event_type in {"node_started", "node_completed", "task_planned", "task_resumed"}:
+        card = {"type": "progress_card_ref", "task_id": event.task_id}
+    elif event.event_type in {"task_failed", "confirmation_rejected"}:
+        card = {"type": "error_card_ref", "task_id": event.task_id}
+    return {
+        "event_id": event.event_id,
+        "event_type": event.event_type,
+        "task_id": event.task_id,
+        "conversation_id": event.conversation_id,
+        "node_id": event.node_id,
+        "timestamp": event.occurred_at.isoformat(),
+        "payload": payload,
+        "card": card,
+    }
diff --git a/src/ai_orchestrator/delivery/http/schemas.py b/src/ai_orchestrator/delivery/http/schemas.py
index 5807d81..30448ca 100644
--- a/src/ai_orchestrator/delivery/http/schemas.py
+++ b/src/ai_orchestrator/delivery/http/schemas.py
@@ -34,6 +34,7 @@ class TaskStatusResponse(BaseModel):
     status: str
     current_node: str | None
     progress: dict[str, int]
+    cards: list[dict[str, Any]] = Field(default_factory=list)
 
 
 class ConfirmationApproveRequest(BaseModel):
@@ -113,3 +114,14 @@ class WorkerResultMessage(BaseModel):
     result: dict[str, Any] = Field(default_factory=dict)
     artifacts: list[dict[str, Any]] = Field(default_factory=list)
     error: dict[str, Any] | None = None
+
+
+class TaskEventDto(BaseModel):
+    event_id: str
+    event_type: str
+    task_id: str
+    conversation_id: str | None = None
+    node_id: str | None = None
+    timestamp: str
+    payload: dict[str, Any] = Field(default_factory=dict)
+    card: dict[str, Any] | None = None
diff --git a/tests/integration/test_http_app.py b/tests/integration/test_http_app.py
index a423737..1decbf4 100644
--- a/tests/integration/test_http_app.py
+++ b/tests/integration/test_http_app.py
@@ -30,6 +30,31 @@ def test_post_tasks_creates_planned_task() -> None:
     assert response.status_code == 200
     assert payload["status"] == "running"
     assert payload["progress"]["total"] == 2
+    assert any(card["type"] == "plan_card" for card in payload["cards"])
+    assert any(card["type"] == "progress_card" for card in payload["cards"])
+
+
+def test_chat_response_contains_ui_cards() -> None:
+    client = TestClient(app)
+
+    response = client.post(
+        "/chat",
+        json={
+            "project_id": "default",
+            "conversation_id": "conv_demo",
+            "message": "Build plan",
+            "attachments": [],
+            "mode": "auto",
+            "preferences": {"show_plan": True},
+        },
+    )
+
+    payload = response.json()
+
+    assert response.status_code == 200
+    assert payload["response_type"] == "task_started"
+    assert any(card["type"] == "plan_card" for card in payload["cards"])
+    assert any(card["type"] == "progress_card" for card in payload["cards"])
 
 
 def test_cancel_endpoint_marks_task_cancelled() -> None:
@@ -48,6 +73,7 @@ def test_cancel_endpoint_marks_task_cancelled() -> None:
 
     assert response.status_code == 200
     assert response.json()["status"] == "cancelled"
+    assert any(card["type"] == "error_card" for card in response.json()["cards"])
 
 
 def test_worker_registration_is_exposed_via_list_endpoint() -> None:
@@ -138,3 +164,23 @@ def test_worker_websocket_heartbeat_and_poll() -> None:
     assert heartbeat_ack["status"] in {"online", "busy"}
     assert commands["type"] == "commands"
     assert len(commands["commands"]) == 1
+
+
+def test_task_events_stream_returns_normalized_event_payload() -> None:
+    client = TestClient(app)
+    created = client.post(
+        "/tasks",
+        json={
+            "project_id": "default",
+            "goal": "Event check",
+            "inputs": {},
+            "execution_mode": "agent_graph",
+        },
+    ).json()
+
+    with client.stream("GET", f"/tasks/{created['task_id']}/events") as response:
+        body = response.read().decode()
+
+    assert response.status_code == 200
+    assert "event_type" in body
+    assert "progress_card_ref" in body or "task_planned" in body