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internal/multiagent/eino_adk_run_loop_stream_test.go

@@ -15,7 +15,7 @@ func TestRecvSchemaMessageStream_EOF(t *testing.T) {
 	_ = sw.Send(schema.ToolMessage("hello", "tc-1"), nil)
 	sw.Close()
 
-	content, tid, err := recvSchemaMessageStream(context.Background(), sr)
+	content, tid, toolName, err := recvSchemaMessageStream(context.Background(), sr)
 	if err != nil {
 		t.Fatalf("unexpected err: %v", err)
 	}
@@ -25,6 +25,23 @@ func TestRecvSchemaMessageStream_EOF(t *testing.T) {
 	if tid != "tc-1" {
 		t.Fatalf("toolCallID=%q want tc-1", tid)
 	}
+	if toolName != "" {
+		t.Fatalf("toolName=%q want empty", toolName)
+	}
+}
+
+func TestRecvSchemaMessageStream_CapturesToolName(t *testing.T) {
+	sr, sw := schema.Pipe[*schema.Message](4)
+	_ = sw.Send(schema.ToolMessage("hello", "tc-1", schema.WithToolName("execute")), nil)
+	sw.Close()
+
+	content, tid, toolName, err := recvSchemaMessageStream(context.Background(), sr)
+	if err != nil {
+		t.Fatalf("unexpected err: %v", err)
+	}
+	if content != "hello" || tid != "tc-1" || toolName != "execute" {
+		t.Fatalf("content=%q tid=%q toolName=%q", content, tid, toolName)
+	}
 }
 
 func TestRecvSchemaMessageStream_ContextCancel(t *testing.T) {
@@ -37,7 +54,7 @@ func TestRecvSchemaMessageStream_ContextCancel(t *testing.T) {
 		cancel()
 	}()
 
-	content, _, err := recvSchemaMessageStream(ctx, sr)
+	content, _, _, err := recvSchemaMessageStream(ctx, sr)
 	if !errors.Is(err, context.Canceled) {
 		t.Fatalf("want context.Canceled, got %v content=%q", err, content)
 	}
@@ -49,16 +66,16 @@ func TestRecvSchemaMessageStream_RecvError(t *testing.T) {
 	_ = sw.Send(nil, want)
 	sw.Close()
 
-	_, _, err := recvSchemaMessageStream(context.Background(), sr)
+	_, _, _, err := recvSchemaMessageStream(context.Background(), sr)
 	if !errors.Is(err, want) {
 		t.Fatalf("want %v, got %v", want, err)
 	}
 }
 
 func TestRecvSchemaMessageStream_NilStream(t *testing.T) {
-	content, tid, err := recvSchemaMessageStream(context.Background(), nil)
-	if err != nil || content != "" || tid != "" {
-		t.Fatalf("nil stream: content=%q tid=%q err=%v", content, tid, err)
+	content, tid, toolName, err := recvSchemaMessageStream(context.Background(), nil)
+	if err != nil || content != "" || tid != "" || toolName != "" {
+		t.Fatalf("nil stream: content=%q tid=%q toolName=%q err=%v", content, tid, toolName, err)
 	}
 }
 
@@ -67,8 +84,39 @@ func TestRecvSchemaMessageStream_EOFViaEmptyRead(t *testing.T) {
 	_ = sw.Send(nil, io.EOF)
 	sw.Close()
 
-	_, _, err := recvSchemaMessageStream(context.Background(), sr)
+	_, _, _, err := recvSchemaMessageStream(context.Background(), sr)
 	if err != nil {
 		t.Fatalf("EOF should not surface as error, got %v", err)
 	}
 }
+
+func TestRecvEinoSchemaMessageStreamWithContext_SkipsNilChunks(t *testing.T) {
+	sr, sw := schema.Pipe[*schema.Message](4)
+	_ = sw.Send(nil, nil)
+	_ = sw.Send(schema.AssistantMessage("hello", nil), nil)
+	sw.Close()
+
+	var got []string
+	err := recvEinoSchemaMessageStreamWithContext(context.Background(), sr, 1, func(chunk *schema.Message) {
+		got = append(got, chunk.Content)
+	})
+	if err != nil {
+		t.Fatalf("unexpected err: %v", err)
+	}
+	if len(got) != 1 || got[0] != "hello" {
+		t.Fatalf("chunks = %#v, want [hello]", got)
+	}
+}
+
+func TestRecvEinoSchemaMessageStreamWithContext_NilStream(t *testing.T) {
+	called := false
+	err := recvEinoSchemaMessageStreamWithContext(context.Background(), nil, 0, func(*schema.Message) {
+		called = true
+	})
+	if err != nil {
+		t.Fatalf("nil stream should not error, got %v", err)
+	}
+	if called {
+		t.Fatal("nil stream should not call handler")
+	}
+}

internal/multiagent/eino_agentic_agent_adapter.go

@@ -0,0 +1,81 @@
+package multiagent
+
+import (
+	"context"
+	"fmt"
+
+	"github.com/cloudwego/eino/adk"
+	"github.com/cloudwego/eino/schema"
+)
+
+type einoAgenticMessageAgentAdapter struct {
+	inner adk.TypedAgent[*schema.AgenticMessage]
+}
+
+func newEinoAgenticMessageAgentAdapter(inner adk.TypedAgent[*schema.AgenticMessage]) adk.Agent {
+	if inner == nil {
+		return nil
+	}
+	return &einoAgenticMessageAgentAdapter{inner: inner}
+}
+
+func (a *einoAgenticMessageAgentAdapter) Name(ctx context.Context) string {
+	if a == nil || a.inner == nil {
+		return ""
+	}
+	return a.inner.Name(ctx)
+}
+
+func (a *einoAgenticMessageAgentAdapter) Description(ctx context.Context) string {
+	if a == nil || a.inner == nil {
+		return ""
+	}
+	return a.inner.Description(ctx)
+}
+
+func (a *einoAgenticMessageAgentAdapter) Run(ctx context.Context, input *adk.AgentInput, opts ...adk.AgentRunOption) *adk.AsyncIterator[*adk.AgentEvent] {
+	return a.runTyped(ctx, input, nil, opts...)
+}
+
+func (a *einoAgenticMessageAgentAdapter) Resume(ctx context.Context, info *adk.ResumeInfo, opts ...adk.AgentRunOption) *adk.AsyncIterator[*adk.AgentEvent] {
+	return a.runTyped(ctx, nil, info, opts...)
+}
+
+func (a *einoAgenticMessageAgentAdapter) runTyped(ctx context.Context, input *adk.AgentInput, resumeInfo *adk.ResumeInfo, opts ...adk.AgentRunOption) *adk.AsyncIterator[*adk.AgentEvent] {
+	iter, gen := adk.NewAsyncIteratorPair[*adk.AgentEvent]()
+	go func() {
+		defer gen.Close()
+		if a == nil || a.inner == nil {
+			gen.Send(&adk.AgentEvent{Err: fmt.Errorf("agentic adapter: inner agent is nil")})
+			return
+		}
+		var agenticIter *adk.AsyncIterator[*adk.TypedAgentEvent[*schema.AgenticMessage]]
+		if resumeInfo != nil {
+			resumable, ok := a.inner.(adk.TypedResumableAgent[*schema.AgenticMessage])
+			if !ok {
+				gen.Send(&adk.AgentEvent{Err: fmt.Errorf("agentic adapter: inner agent does not support resume")})
+				return
+			}
+			agenticIter = resumable.Resume(ctx, resumeInfo, opts...)
+		} else {
+			agenticInput := &adk.TypedAgentInput[*schema.AgenticMessage]{}
+			if input != nil {
+				agenticInput.EnableStreaming = input.EnableStreaming
+				agenticInput.Messages = EinoMessagesToAgentic(input.Messages)
+			}
+			agenticIter = a.inner.Run(ctx, agenticInput, opts...)
+		}
+		for {
+			ev, ok := agenticIter.Next()
+			if !ok {
+				return
+			}
+			for _, adapted := range adaptAgenticEventToEinoEvents(ev) {
+				if adapted != nil {
+					gen.Send(adapted)
+				}
+			}
+		}
+	}()
+	return iter
+}

internal/multiagent/eino_agentic_agent_adapter_test.go

@@ -0,0 +1,145 @@
+package multiagent
+
+import (
+	"context"
+	"testing"
+
+	"github.com/cloudwego/eino/adk"
+	"github.com/cloudwego/eino/schema"
+)
+
+type fakeAgenticMessageAgent struct {
+	name        string
+	description string
+	captured    *adk.TypedAgentInput[*schema.AgenticMessage]
+	resumeInfo  *adk.ResumeInfo
+	events      []*adk.TypedAgentEvent[*schema.AgenticMessage]
+}
+
+func (f *fakeAgenticMessageAgent) Name(context.Context) string {
+	return f.name
+}
+
+func (f *fakeAgenticMessageAgent) Description(context.Context) string {
+	return f.description
+}
+
+func (f *fakeAgenticMessageAgent) Run(_ context.Context, input *adk.TypedAgentInput[*schema.AgenticMessage], _ ...adk.AgentRunOption) *adk.AsyncIterator[*adk.TypedAgentEvent[*schema.AgenticMessage]] {
+	f.captured = input
+	iter, gen := adk.NewAsyncIteratorPair[*adk.TypedAgentEvent[*schema.AgenticMessage]]()
+	go func() {
+		defer gen.Close()
+		for _, ev := range f.events {
+			gen.Send(ev)
+		}
+	}()
+	return iter
+}
+
+func (f *fakeAgenticMessageAgent) Resume(_ context.Context, info *adk.ResumeInfo, _ ...adk.AgentRunOption) *adk.AsyncIterator[*adk.TypedAgentEvent[*schema.AgenticMessage]] {
+	f.resumeInfo = info
+	iter, gen := adk.NewAsyncIteratorPair[*adk.TypedAgentEvent[*schema.AgenticMessage]]()
+	go func() {
+		defer gen.Close()
+		for _, ev := range f.events {
+			gen.Send(ev)
+		}
+	}()
+	return iter
+}
+
+func TestEinoAgenticMessageAgentAdapterConvertsInputAndEvents(t *testing.T) {
+	inner := &fakeAgenticMessageAgent{
+		name:        "agentic",
+		description: "typed agent",
+		events: []*adk.TypedAgentEvent[*schema.AgenticMessage]{
+			{
+				AgentName: "agentic",
+				Output: &adk.TypedAgentOutput[*schema.AgenticMessage]{
+					MessageOutput: &adk.TypedMessageVariant[*schema.AgenticMessage]{
+						Message: &schema.AgenticMessage{
+							Role: schema.AgenticRoleTypeAssistant,
+							ContentBlocks: []*schema.ContentBlock{
+								schema.NewContentBlock(&schema.AssistantGenText{Text: "hello"}),
+							},
+						},
+					},
+				},
+			},
+		},
+	}
+	agent := newEinoAgenticMessageAgentAdapter(inner)
+
+	if agent.Name(context.Background()) != "agentic" || agent.Description(context.Background()) != "typed agent" {
+		t.Fatalf("adapter metadata name=%q desc=%q", agent.Name(context.Background()), agent.Description(context.Background()))
+	}
+	iter := agent.Run(context.Background(), &adk.AgentInput{
+		EnableStreaming: true,
+		Messages: []*schema.Message{
+			schema.UserMessage("hi"),
+		},
+	})
+
+	ev, ok := iter.Next()
+	if !ok {
+		t.Fatal("expected adapted event")
+	}
+	if inner.captured == nil || !inner.captured.EnableStreaming || len(inner.captured.Messages) != 1 {
+		t.Fatalf("captured input = %#v", inner.captured)
+	}
+	if inner.captured.Messages[0].Role != schema.AgenticRoleTypeUser || inner.captured.Messages[0].ContentBlocks[0].UserInputText.Text != "hi" {
+		t.Fatalf("captured message = %#v", inner.captured.Messages[0])
+	}
+	if ev.AgentName != "agentic" || ev.Output == nil || ev.Output.MessageOutput == nil {
+		t.Fatalf("event = %#v", ev)
+	}
+	if ev.Output.MessageOutput.Role != schema.Assistant || ev.Output.MessageOutput.Message.Content != "hello" {
+		t.Fatalf("message output = %#v", ev.Output.MessageOutput)
+	}
+	if _, ok := iter.Next(); ok {
+		t.Fatal("expected iterator to close")
+	}
+}
+
+func TestEinoAgenticMessageAgentAdapterNilInnerReturnsNil(t *testing.T) {
+	if got := newEinoAgenticMessageAgentAdapter(nil); got != nil {
+		t.Fatalf("adapter = %#v, want nil", got)
+	}
+}
+
+func TestEinoAgenticMessageAgentAdapterResumeConvertsEvents(t *testing.T) {
+	inner := &fakeAgenticMessageAgent{
+		name: "agentic",
+		events: []*adk.TypedAgentEvent[*schema.AgenticMessage]{
+			{
+				AgentName: "agentic",
+				Output: &adk.TypedAgentOutput[*schema.AgenticMessage]{
+					MessageOutput: &adk.TypedMessageVariant[*schema.AgenticMessage]{
+						Message: &schema.AgenticMessage{
+							Role: schema.AgenticRoleTypeAssistant,
+							ContentBlocks: []*schema.ContentBlock{
+								schema.NewContentBlock(&schema.AssistantGenText{Text: "resumed"}),
+							},
+						},
+					},
+				},
+			},
+		},
+	}
+	agent, ok := newEinoAgenticMessageAgentAdapter(inner).(adk.ResumableAgent)
+	if !ok {
+		t.Fatal("adapter must implement adk.ResumableAgent")
+	}
+	info := &adk.ResumeInfo{WasInterrupted: true}
+	iter := agent.Resume(context.Background(), info)
+	ev, ok := iter.Next()
+	if !ok {
+		t.Fatal("expected adapted resume event")
+	}
+	if inner.resumeInfo != info {
+		t.Fatalf("resume info = %#v, want original pointer", inner.resumeInfo)
+	}
+	if ev.Output == nil || ev.Output.MessageOutput == nil || ev.Output.MessageOutput.Message.Content != "resumed" {
+		t.Fatalf("resume event = %#v", ev)
+	}
+}

internal/multiagent/eino_agentic_chat_model_agent.go

@@ -0,0 +1,64 @@
+package multiagent
+
+import (
+	"context"
+	"fmt"
+
+	"github.com/cloudwego/eino/adk"
+	"github.com/cloudwego/eino/components/model"
+	"github.com/cloudwego/eino/components/tool"
+	"github.com/cloudwego/eino/schema"
+)
+
+type einoAgenticChatModelAgentConfig struct {
+	Name          string
+	Description   string
+	Instruction   string
+	Model         model.AgenticModel
+	ToolsConfig   adk.ToolsConfig
+	MaxIterations int
+	Exit          tool.BaseTool
+
+	GenModelInput       adk.TypedGenModelInput[*schema.AgenticMessage]
+	Handlers            []adk.TypedChatModelAgentMiddleware[*schema.AgenticMessage]
+	ModelRetryConfig    *adk.TypedModelRetryConfig[*schema.AgenticMessage]
+	ModelFailoverConfig *adk.ModelFailoverConfig[*schema.AgenticMessage]
+	OutputKey           string
+}
+
+func newEinoAgenticChatModelAgent(ctx context.Context, cfg einoAgenticChatModelAgentConfig) (adk.TypedResumableAgent[*schema.AgenticMessage], error) {
+	if cfg.Model == nil {
+		return nil, fmt.Errorf("eino agentic ChatModelAgent: model is required")
+	}
+	typedCfg := &adk.TypedChatModelAgentConfig[*schema.AgenticMessage]{
+		Name:                cfg.Name,
+		Description:         cfg.Description,
+		Instruction:         cfg.Instruction,
+		Model:               cfg.Model,
+		ToolsConfig:         cfg.ToolsConfig,
+		MaxIterations:       cfg.MaxIterations,
+		Exit:                cfg.Exit,
+		GenModelInput:       cfg.GenModelInput,
+		Handlers:            cfg.Handlers,
+		ModelRetryConfig:    cfg.ModelRetryConfig,
+		ModelFailoverConfig: cfg.ModelFailoverConfig,
+		OutputKey:           cfg.OutputKey,
+	}
+	typedAgent, err := adk.NewTypedChatModelAgent(ctx, typedCfg)
+	if err != nil {
+		return nil, fmt.Errorf("eino agentic NewTypedChatModelAgent: %w", err)
+	}
+	return typedAgent, nil
+}
+
+func newEinoAgenticChatModelAgentAdapter(ctx context.Context, cfg einoAgenticChatModelAgentConfig) (adk.Agent, error) {
+	typedAgent, err := newEinoAgenticChatModelAgent(ctx, cfg)
+	if err != nil {
+		return nil, err
+	}
+	agent := newEinoAgenticMessageAgentAdapter(typedAgent)
+	if agent == nil {
+		return nil, fmt.Errorf("eino agentic ChatModelAgent: adapter is nil")
+	}
+	return agent, nil
+}

internal/multiagent/eino_agentic_chat_model_agent_test.go

@@ -0,0 +1,163 @@
+package multiagent
+
+import (
+	"context"
+	"strings"
+	"sync"
+	"testing"
+
+	"github.com/cloudwego/eino/adk"
+	"github.com/cloudwego/eino/components/model"
+	"github.com/cloudwego/eino/schema"
+)
+
+type capturingAgenticChatModel struct {
+	mu     sync.Mutex
+	inputs [][]*schema.AgenticMessage
+	output *schema.AgenticMessage
+}
+
+func (m *capturingAgenticChatModel) Generate(_ context.Context, input []*schema.AgenticMessage, _ ...model.Option) (*schema.AgenticMessage, error) {
+	m.mu.Lock()
+	m.inputs = append(m.inputs, input)
+	m.mu.Unlock()
+	if m.output != nil {
+		return m.output, nil
+	}
+	return &schema.AgenticMessage{
+		Role:          schema.AgenticRoleTypeAssistant,
+		ContentBlocks: []*schema.ContentBlock{schema.NewContentBlock(&schema.AssistantGenText{Text: "agentic answer"})},
+	}, nil
+}
+
+func (m *capturingAgenticChatModel) Stream(_ context.Context, input []*schema.AgenticMessage, _ ...model.Option) (*schema.StreamReader[*schema.AgenticMessage], error) {
+	msg, err := m.Generate(context.Background(), input)
+	if err != nil {
+		return nil, err
+	}
+	return schema.StreamReaderFromArray([]*schema.AgenticMessage{msg}), nil
+}
+
+func (m *capturingAgenticChatModel) snapshotInputs() [][]*schema.AgenticMessage {
+	m.mu.Lock()
+	defer m.mu.Unlock()
+	out := make([][]*schema.AgenticMessage, len(m.inputs))
+	copy(out, m.inputs)
+	return out
+}
+
+func TestNewEinoAgenticChatModelAgentAdapterRunsThroughClassicAgentBoundary(t *testing.T) {
+	t.Parallel()
+	ctx := context.Background()
+	trace := newModelFacingTraceHolder()
+	fakeModel := &capturingAgenticChatModel{}
+	agent, err := newEinoAgenticChatModelAgentAdapter(ctx, einoAgenticChatModelAgentConfig{
+		Name:        "agentic",
+		Description: "agentic adapter test",
+		Instruction: "system instruction",
+		Model:       fakeModel,
+		Handlers: appendEinoAgenticChatModelTailMiddlewares(nil, einoChatModelTailConfig{
+			phase: "agentic",
+			trace: trace,
+		}),
+	})
+	if err != nil {
+		t.Fatalf("newEinoAgenticChatModelAgentAdapter: %v", err)
+	}
+
+	iter := agent.Run(ctx, &adk.AgentInput{
+		Messages: []*schema.Message{schema.UserMessage("classic input")},
+	})
+	var last *adk.AgentEvent
+	for {
+		ev, ok := iter.Next()
+		if !ok {
+			break
+		}
+		if ev.Err != nil {
+			t.Fatalf("agent event error: %v", ev.Err)
+		}
+		last = ev
+	}
+	if last == nil || last.Output == nil || last.Output.MessageOutput == nil {
+		t.Fatalf("last event = %#v, want message output", last)
+	}
+	if got := last.Output.MessageOutput.Message.Content; got != "agentic answer" {
+		t.Fatalf("classic output content = %q, want agentic answer", got)
+	}
+
+	inputs := fakeModel.snapshotInputs()
+	if len(inputs) != 1 {
+		t.Fatalf("model calls = %d, want 1", len(inputs))
+	}
+	if len(inputs[0]) != 2 {
+		t.Fatalf("model input messages = %d, want instruction + user", len(inputs[0]))
+	}
+	if inputs[0][0].Role != schema.AgenticRoleTypeSystem || agenticMessageText(inputs[0][0]) != "system instruction" {
+		t.Fatalf("first agentic input = %#v", inputs[0][0])
+	}
+	if inputs[0][1].Role != schema.AgenticRoleTypeUser || agenticMessageText(inputs[0][1]) != "classic input" {
+		t.Fatalf("second agentic input = %#v", inputs[0][1])
+	}
+
+	snapshot := trace.Snapshot()
+	if len(snapshot) != 2 || snapshot[0].Role != schema.System || snapshot[1].Role != schema.User {
+		t.Fatalf("trace snapshot = %#v, want classic system + user trace", snapshot)
+	}
+}
+
+func TestNewEinoAgenticChatModelAgentAdapterPreservesTypedToolCallsForToolLayerRecovery(t *testing.T) {
+	t.Parallel()
+	ctx := context.Background()
+	fakeModel := &capturingAgenticChatModel{
+		output: &schema.AgenticMessage{
+			Role: schema.AgenticRoleTypeAssistant,
+			ContentBlocks: []*schema.ContentBlock{schema.NewContentBlock(&schema.FunctionToolCall{
+				CallID:    "call-1",
+				Name:      "exec",
+				Arguments: `{"command":"` + strings.Repeat("x", 20000) + `"}`,
+			})},
+		},
+	}
+	agent, err := newEinoAgenticChatModelAgentAdapter(ctx, einoAgenticChatModelAgentConfig{
+		Name:        "agentic",
+		Description: "agentic adapter test",
+		Model:       fakeModel,
+		Handlers: appendEinoAgenticChatModelTailMiddlewares(nil, einoChatModelTailConfig{
+			phase: "agentic",
+		}),
+	})
+	if err != nil {
+		t.Fatalf("newEinoAgenticChatModelAgentAdapter: %v", err)
+	}
+	iter := agent.Run(ctx, &adk.AgentInput{Messages: []*schema.Message{schema.UserMessage("run")}})
+	var last *adk.AgentEvent
+	for {
+		ev, ok := iter.Next()
+		if !ok {
+			break
+		}
+		if ev.Err != nil {
+			t.Fatalf("agent event error: %v", ev.Err)
+		}
+		last = ev
+	}
+	if last == nil || last.Output == nil || last.Output.MessageOutput == nil {
+		t.Fatalf("last event = %#v, want message output", last)
+	}
+	msg := last.Output.MessageOutput.Message
+	if len(msg.ToolCalls) != 1 {
+		t.Fatalf("tool calls = %#v, want one tool call", msg.ToolCalls)
+	}
+	args := msg.ToolCalls[0].Function.Arguments
+	if !strings.Contains(args, strings.Repeat("x", 32)) || strings.Contains(args, modelOutputRecoveryKey) {
+		t.Fatalf("agentic tool args were unexpectedly rewritten: %q", args)
+	}
+}
+
+func TestNewEinoAgenticChatModelAgentAdapterRequiresModel(t *testing.T) {
+	t.Parallel()
+	if _, err := newEinoAgenticChatModelAgentAdapter(context.Background(), einoAgenticChatModelAgentConfig{}); err == nil {
+		t.Fatal("expected missing model error")
+	}
+}

internal/multiagent/eino_agentic_chat_model_tail_middleware.go

@@ -0,0 +1,209 @@
+package multiagent
+
+import (
+	"context"
+	"strings"
+
+	"github.com/cloudwego/eino/adk"
+	"github.com/cloudwego/eino/schema"
+	"go.uber.org/zap"
+)
+
+// appendEinoAgenticChatModelTailMiddlewares appends protocol-neutral handlers for
+// TypedChatModelAgent[*schema.AgenticMessage]. Classic ReAct history repair
+// handlers stay on the schema.Message path because AgenticMessage has native
+// content blocks for function calls/results.
+func appendEinoAgenticChatModelTailMiddlewares(
+	handlers []adk.TypedChatModelAgentMiddleware[*schema.AgenticMessage],
+	cfg einoChatModelTailConfig,
+) []adk.TypedChatModelAgentMiddleware[*schema.AgenticMessage] {
+	handlers = append(handlers, newAgenticSystemMessageNormalizerMiddleware(cfg.logger, cfg.phase))
+	handlers = append(handlers, newAgenticContinuationUserDedupMiddleware(cfg.logger, cfg.phase))
+	if cfg.agenticSummarization != nil {
+		handlers = append(handlers, cfg.agenticSummarization)
+	}
+	if !cfg.skipTrace && cfg.trace != nil {
+		if capMw := newAgenticModelFacingTraceMiddleware(cfg.trace); capMw != nil {
+			handlers = append(handlers, capMw)
+		}
+	}
+	return handlers
+}
+
+type agenticSystemMessageNormalizerMiddleware struct {
+	*adk.TypedBaseChatModelAgentMiddleware[*schema.AgenticMessage]
+	logger *zap.Logger
+	phase  string
+}
+
+func newAgenticSystemMessageNormalizerMiddleware(logger *zap.Logger, phase string) adk.TypedChatModelAgentMiddleware[*schema.AgenticMessage] {
+	return &agenticSystemMessageNormalizerMiddleware{
+		TypedBaseChatModelAgentMiddleware: &adk.TypedBaseChatModelAgentMiddleware[*schema.AgenticMessage]{},
+		logger:                            logger,
+		phase:                             phase,
+	}
+}
+
+func (m *agenticSystemMessageNormalizerMiddleware) BeforeModelRewriteState(
+	ctx context.Context,
+	state *adk.TypedChatModelAgentState[*schema.AgenticMessage],
+	mc *adk.TypedModelContext[*schema.AgenticMessage],
+) (context.Context, *adk.TypedChatModelAgentState[*schema.AgenticMessage], error) {
+	_ = mc
+	if m == nil || state == nil || len(state.Messages) == 0 {
+		return ctx, state, nil
+	}
+	before := countAgenticSystemMessages(state.Messages)
+	if before <= 1 {
+		return ctx, state, nil
+	}
+	normalized := normalizeSingleLeadingAgenticSystemMessage(state.Messages)
+	if len(normalized) == len(state.Messages) && countAgenticSystemMessages(normalized) >= before {
+		return ctx, state, nil
+	}
+	if m.logger != nil {
+		m.logger.Info("eino agentic system messages merged",
+			zap.String("phase", m.phase),
+			zap.Int("system_before", before),
+			zap.Int("system_after", countAgenticSystemMessages(normalized)),
+			zap.Int("messages_before", len(state.Messages)),
+			zap.Int("messages_after", len(normalized)),
+		)
+	}
+	out := *state
+	out.Messages = normalized
+	return ctx, &out, nil
+}
+
+type agenticContinuationUserDedupMiddleware struct {
+	*adk.TypedBaseChatModelAgentMiddleware[*schema.AgenticMessage]
+	logger *zap.Logger
+	phase  string
+}
+
+func newAgenticContinuationUserDedupMiddleware(logger *zap.Logger, phase string) adk.TypedChatModelAgentMiddleware[*schema.AgenticMessage] {
+	return &agenticContinuationUserDedupMiddleware{
+		TypedBaseChatModelAgentMiddleware: &adk.TypedBaseChatModelAgentMiddleware[*schema.AgenticMessage]{},
+		logger:                            logger,
+		phase:                             phase,
+	}
+}
+
+func (m *agenticContinuationUserDedupMiddleware) BeforeModelRewriteState(
+	ctx context.Context,
+	state *adk.TypedChatModelAgentState[*schema.AgenticMessage],
+	mc *adk.TypedModelContext[*schema.AgenticMessage],
+) (context.Context, *adk.TypedChatModelAgentState[*schema.AgenticMessage], error) {
+	_ = mc
+	if m == nil || state == nil || len(state.Messages) == 0 {
+		return ctx, state, nil
+	}
+	deduped, dropped := dedupAgenticContinuationUserMessages(state.Messages)
+	if dropped == 0 {
+		return ctx, state, nil
+	}
+	if m.logger != nil {
+		m.logger.Info("eino agentic continuation user messages deduplicated",
+			zap.String("phase", m.phase),
+			zap.Int("dropped", dropped),
+			zap.Int("messages_before", len(state.Messages)),
+			zap.Int("messages_after", len(deduped)),
+		)
+	}
+	out := *state
+	out.Messages = deduped
+	return ctx, &out, nil
+}
+
+func countAgenticSystemMessages(msgs []*schema.AgenticMessage) int {
+	n := 0
+	for _, msg := range msgs {
+		if msg != nil && msg.Role == schema.AgenticRoleTypeSystem {
+			n++
+		}
+	}
+	return n
+}
+
+func normalizeSingleLeadingAgenticSystemMessage(msgs []*schema.AgenticMessage) []*schema.AgenticMessage {
+	var systemParts []string
+	out := make([]*schema.AgenticMessage, 0, len(msgs))
+	for _, msg := range msgs {
+		if msg == nil {
+			continue
+		}
+		if msg.Role == schema.AgenticRoleTypeSystem {
+			if text := strings.TrimSpace(agenticMessageText(msg)); text != "" {
+				systemParts = append(systemParts, text)
+			}
+			continue
+		}
+		out = append(out, msg)
+	}
+	if len(systemParts) == 0 {
+		return out
+	}
+	merged := schema.SystemAgenticMessage(strings.Join(systemParts, "\n\n"))
+	return append([]*schema.AgenticMessage{merged}, out...)
+}
+
+func dedupAgenticContinuationUserMessages(msgs []*schema.AgenticMessage) ([]*schema.AgenticMessage, int) {
+	lastIdx := -1
+	contCount := 0
+	for i, msg := range msgs {
+		if !isAgenticContinuationUserMessage(msg) {
+			continue
+		}
+		contCount++
+		lastIdx = i
+	}
+	if contCount <= 1 {
+		return msgs, 0
+	}
+	out := make([]*schema.AgenticMessage, 0, len(msgs)-(contCount-1))
+	dropped := 0
+	for i, msg := range msgs {
+		if isAgenticContinuationUserMessage(msg) && i != lastIdx {
+			dropped++
+			continue
+		}
+		out = append(out, msg)
+	}
+	return out, dropped
+}
+
+func isAgenticContinuationUserMessage(msg *schema.AgenticMessage) bool {
+	if msg == nil || msg.Role != schema.AgenticRoleTypeUser {
+		return false
+	}
+	return strings.Contains(agenticMessageText(msg), continuationSessionMarker)
+}
+
+func agenticMessageText(msg *schema.AgenticMessage) string {
+	if msg == nil {
+		return ""
+	}
+	var b strings.Builder
+	for _, block := range msg.ContentBlocks {
+		if block == nil {
+			continue
+		}
+		switch {
+		case block.UserInputText != nil:
+			if s := strings.TrimSpace(block.UserInputText.Text); s != "" {
+				if b.Len() > 0 {
+					b.WriteByte('\n')
+				}
+				b.WriteString(s)
+			}
+		case block.AssistantGenText != nil:
+			if s := strings.TrimSpace(block.AssistantGenText.Text); s != "" {
+				if b.Len() > 0 {
+					b.WriteByte('\n')
+				}
+				b.WriteString(s)
+			}
+		}
+	}
+	return b.String()
+}

internal/multiagent/eino_agentic_chat_model_tail_middleware_test.go

@@ -0,0 +1,112 @@
+package multiagent
+
+import (
+	"context"
+	"strings"
+	"testing"
+
+	"github.com/cloudwego/eino/adk"
+	"github.com/cloudwego/eino/schema"
+)
+
+func TestAgenticSystemMessageNormalizerMiddlewareMergesDuplicates(t *testing.T) {
+	t.Parallel()
+	mw := newAgenticSystemMessageNormalizerMiddleware(nil, "test")
+	state := &adk.TypedChatModelAgentState[*schema.AgenticMessage]{
+		Messages: []*schema.AgenticMessage{
+			schema.SystemAgenticMessage("first"),
+			schema.UserAgenticMessage("hello"),
+			schema.SystemAgenticMessage("second"),
+		},
+	}
+	_, out, err := mw.BeforeModelRewriteState(context.Background(), state, nil)
+	if err != nil {
+		t.Fatalf("BeforeModelRewriteState: %v", err)
+	}
+	if out == state {
+		t.Fatal("expected rewritten state")
+	}
+	if got := countAgenticSystemMessages(out.Messages); got != 1 {
+		t.Fatalf("system messages = %d, want 1", got)
+	}
+	if out.Messages[0].Role != schema.AgenticRoleTypeSystem {
+		t.Fatalf("first role = %s, want system", out.Messages[0].Role)
+	}
+	text := agenticMessageText(out.Messages[0])
+	if !strings.Contains(text, "first") || !strings.Contains(text, "second") {
+		t.Fatalf("merged system text = %q", text)
+	}
+	if len(out.Messages) != 2 || agenticMessageText(out.Messages[1]) != "hello" {
+		t.Fatalf("normalized messages = %#v", out.Messages)
+	}
+}
+
+func TestAgenticContinuationUserDedupMiddlewareKeepsLatest(t *testing.T) {
+	t.Parallel()
+	mw := newAgenticContinuationUserDedupMiddleware(nil, "test")
+	state := &adk.TypedChatModelAgentState[*schema.AgenticMessage]{
+		Messages: []*schema.AgenticMessage{
+			schema.UserAgenticMessage(continuationSessionMarker + "\nold"),
+			schema.UserAgenticMessage("real user request"),
+			schema.UserAgenticMessage(continuationSessionMarker + "\nnew"),
+		},
+	}
+	_, out, err := mw.BeforeModelRewriteState(context.Background(), state, nil)
+	if err != nil {
+		t.Fatalf("BeforeModelRewriteState: %v", err)
+	}
+	if out == state {
+		t.Fatal("expected rewritten state")
+	}
+	if len(out.Messages) != 2 {
+		t.Fatalf("messages = %d, want 2", len(out.Messages))
+	}
+	if strings.Contains(agenticMessageText(out.Messages[0]), continuationSessionMarker) {
+		t.Fatalf("old continuation was not dropped: %#v", out.Messages)
+	}
+	if !strings.Contains(agenticMessageText(out.Messages[1]), "new") {
+		t.Fatalf("latest continuation not retained: %#v", out.Messages)
+	}
+}
+
+func TestAgenticModelFacingTraceMiddlewareStoresClassicTrace(t *testing.T) {
+	t.Parallel()
+	holder := newModelFacingTraceHolder()
+	mw := newAgenticModelFacingTraceMiddleware(holder)
+	state := &adk.TypedChatModelAgentState[*schema.AgenticMessage]{
+		Messages: []*schema.AgenticMessage{
+			schema.SystemAgenticMessage("instruction"),
+			{
+				Role: schema.AgenticRoleTypeAssistant,
+				ContentBlocks: []*schema.ContentBlock{
+					schema.NewContentBlock(&schema.AssistantGenText{Text: "answer"}),
+				},
+			},
+		},
+	}
+	if _, _, err := mw.BeforeModelRewriteState(context.Background(), state, nil); err != nil {
+		t.Fatalf("BeforeModelRewriteState: %v", err)
+	}
+	got := holder.Snapshot()
+	if len(got) != 2 {
+		t.Fatalf("trace len = %d, want 2", len(got))
+	}
+	if got[0].Role != schema.System || got[0].Content != "instruction" {
+		t.Fatalf("system trace = %#v", got[0])
+	}
+	if got[1].Role != schema.Assistant || got[1].Content != "answer" {
+		t.Fatalf("assistant trace = %#v", got[1])
+	}
+}
+
+func TestAppendEinoAgenticChatModelTailMiddlewares(t *testing.T) {
+	t.Parallel()
+	holder := newModelFacingTraceHolder()
+	handlers := appendEinoAgenticChatModelTailMiddlewares(nil, einoChatModelTailConfig{
+		phase: "agentic",
+		trace: holder,
+	})
+	if len(handlers) != 3 {
+		t.Fatalf("handlers = %d, want system + continuation + trace", len(handlers))
+	}
+}

internal/multiagent/eino_agentic_event_adapter.go

@@ -0,0 +1,106 @@
+package multiagent
+
+import (
+	"io"
+
+	"github.com/cloudwego/eino/adk"
+	"github.com/cloudwego/eino/schema"
+)
+
+// adaptAgenticEventToEinoEvents converts typed AgenticMessage ADK events into
+// the classic schema.Message events consumed by the existing SSE/MCP drain.
+func adaptAgenticEventToEinoEvents(ev *adk.TypedAgentEvent[*schema.AgenticMessage]) []*adk.AgentEvent {
+	if ev == nil {
+		return nil
+	}
+	base := func(output *adk.AgentOutput) *adk.AgentEvent {
+		return &adk.AgentEvent{
+			AgentName: ev.AgentName,
+			RunPath:   append([]adk.RunStep(nil), ev.RunPath...),
+			Output:    output,
+			Action:    ev.Action,
+			Err:       ev.Err,
+		}
+	}
+	if ev.Output == nil {
+		return []*adk.AgentEvent{base(nil)}
+	}
+	customized := ev.Output.CustomizedOutput
+	mv := ev.Output.MessageOutput
+	if mv == nil {
+		return []*adk.AgentEvent{base(&adk.AgentOutput{CustomizedOutput: customized})}
+	}
+	if mv.IsStreaming {
+		return []*adk.AgentEvent{base(&adk.AgentOutput{
+			MessageOutput: &adk.MessageVariant{
+				IsStreaming:   true,
+				MessageStream: agenticStreamToEinoStream(mv.MessageStream),
+				Role:          agenticVariantRole(mv),
+			},
+			CustomizedOutput: customized,
+		})}
+	}
+
+	msgs := AgenticMessageToEino(mv.Message)
+	if len(msgs) == 0 {
+		return []*adk.AgentEvent{base(&adk.AgentOutput{CustomizedOutput: customized})}
+	}
+	out := make([]*adk.AgentEvent, 0, len(msgs))
+	for i, msg := range msgs {
+		eventCustomized := any(nil)
+		if i == 0 {
+			eventCustomized = customized
+		}
+		out = append(out, base(&adk.AgentOutput{
+			MessageOutput: &adk.MessageVariant{
+				Message:  msg,
+				Role:     msg.Role,
+				ToolName: msg.ToolName,
+			},
+			CustomizedOutput: eventCustomized,
+		}))
+	}
+	return out
+}
+
+func agenticStreamToEinoStream(sr *schema.StreamReader[*schema.AgenticMessage]) *schema.StreamReader[*schema.Message] {
+	out, writer := schema.Pipe[*schema.Message](8)
+	go func() {
+		defer writer.Close()
+		if sr == nil {
+			return
+		}
+		defer sr.Close()
+		for {
+			chunk, err := sr.Recv()
+			if err != nil {
+				if err != io.EOF {
+					writer.Send(nil, err)
+				}
+				return
+			}
+			for _, msg := range AgenticMessageToEino(chunk) {
+				if msg != nil && writer.Send(msg, nil) {
+					return
+				}
+			}
+		}
+	}()
+	return out
+}
+
+func agenticVariantRole(mv *adk.TypedMessageVariant[*schema.AgenticMessage]) schema.RoleType {
+	if mv == nil {
+		return schema.Assistant
+	}
+	switch mv.AgenticRole {
+	case schema.AgenticRoleTypeSystem:
+		return schema.System
+	case schema.AgenticRoleTypeUser:
+		// In Agentic ReAct output, user-role events from the graph are local
+		// FunctionToolResult messages emitted by AgenticToolsNode.
+		return schema.Tool
+	default:
+		return schema.Assistant
+	}
+}

internal/multiagent/eino_agentic_event_adapter_test.go

@@ -0,0 +1,249 @@
+package multiagent
+
+import (
+	"errors"
+	"io"
+	"testing"
+
+	"github.com/cloudwego/eino/adk"
+	"github.com/cloudwego/eino/schema"
+)
+
+func TestAdaptAgenticEventToEinoEventsAssistantMessage(t *testing.T) {
+	usage := &schema.TokenUsage{PromptTokens: 10, CompletionTokens: 5, TotalTokens: 15}
+	ev := &adk.TypedAgentEvent[*schema.AgenticMessage]{
+		AgentName: "agentic",
+		Output: &adk.TypedAgentOutput[*schema.AgenticMessage]{
+			MessageOutput: &adk.TypedMessageVariant[*schema.AgenticMessage]{
+				Message: &schema.AgenticMessage{
+					Role:         schema.AgenticRoleTypeAssistant,
+					ResponseMeta: &schema.AgenticResponseMeta{TokenUsage: usage},
+					ContentBlocks: []*schema.ContentBlock{
+						schema.NewContentBlock(&schema.Reasoning{Text: "think"}),
+						schema.NewContentBlock(&schema.AssistantGenText{Text: "calling"}),
+						schema.NewContentBlock(&schema.FunctionToolCall{CallID: "call-1", Name: "scan", Arguments: `{"host":"127.0.0.1"}`}),
+					},
+				},
+			},
+			CustomizedOutput: "custom",
+		},
+	}
+
+	got := adaptAgenticEventToEinoEvents(ev)
+	if len(got) != 1 {
+		t.Fatalf("events = %d, want 1", len(got))
+	}
+	mv := got[0].Output.MessageOutput
+	if got[0].AgentName != "agentic" || got[0].Output.CustomizedOutput != "custom" {
+		t.Fatalf("event metadata = %#v", got[0])
+	}
+	if mv.Role != schema.Assistant || mv.Message.Role != schema.Assistant {
+		t.Fatalf("role = %q/%q, want assistant", mv.Role, mv.Message.Role)
+	}
+	if mv.Message.Content != "calling" || mv.Message.ReasoningContent != "think" {
+		t.Fatalf("message text = %#v", mv.Message)
+	}
+	if len(mv.Message.ToolCalls) != 1 || mv.Message.ToolCalls[0].ID != "call-1" || mv.Message.ToolCalls[0].Function.Name != "scan" {
+		t.Fatalf("tool calls = %#v", mv.Message.ToolCalls)
+	}
+	if mv.Message.ResponseMeta == nil || mv.Message.ResponseMeta.Usage != usage {
+		t.Fatalf("usage = %#v, want original usage", mv.Message.ResponseMeta)
+	}
+}
+
+func TestAdaptAgenticEventToEinoEventsPureToolResult(t *testing.T) {
+	ev := &adk.TypedAgentEvent[*schema.AgenticMessage]{
+		Output: &adk.TypedAgentOutput[*schema.AgenticMessage]{
+			MessageOutput: &adk.TypedMessageVariant[*schema.AgenticMessage]{
+				Message: &schema.AgenticMessage{
+					Role: schema.AgenticRoleTypeUser,
+					ContentBlocks: []*schema.ContentBlock{
+						schema.NewContentBlock(&schema.FunctionToolResult{
+							CallID: "call-2",
+							Name:   "execute",
+							Content: []*schema.FunctionToolResultContentBlock{{
+								Type: schema.FunctionToolResultContentBlockTypeText,
+								Text: &schema.UserInputText{Text: "done"},
+							}},
+						}),
+					},
+				},
+			},
+		},
+	}
+
+	got := adaptAgenticEventToEinoEvents(ev)
+	if len(got) != 1 {
+		t.Fatalf("events = %d, want 1", len(got))
+	}
+	msg := got[0].Output.MessageOutput.Message
+	if got[0].Output.MessageOutput.Role != schema.Tool || msg.Role != schema.Tool || msg.ToolName != "execute" || msg.ToolCallID != "call-2" || msg.Content != "done" {
+		t.Fatalf("tool event = %#v message=%#v", got[0].Output.MessageOutput, msg)
+	}
+}
+
+func TestAdaptAgenticEventToEinoEventsSplitsMixedToolResult(t *testing.T) {
+	ev := &adk.TypedAgentEvent[*schema.AgenticMessage]{
+		Output: &adk.TypedAgentOutput[*schema.AgenticMessage]{
+			MessageOutput: &adk.TypedMessageVariant[*schema.AgenticMessage]{
+				Message: &schema.AgenticMessage{
+					Role: schema.AgenticRoleTypeAssistant,
+					ContentBlocks: []*schema.ContentBlock{
+						schema.NewContentBlock(&schema.AssistantGenText{Text: "text"}),
+						schema.NewContentBlock(&schema.FunctionToolResult{
+							CallID: "call-3",
+							Name:   "grep",
+							Content: []*schema.FunctionToolResultContentBlock{{
+								Type: schema.FunctionToolResultContentBlockTypeText,
+								Text: &schema.UserInputText{Text: "match"},
+							}},
+						}),
+					},
+				},
+			},
+		},
+	}
+
+	got := adaptAgenticEventToEinoEvents(ev)
+	if len(got) != 2 {
+		t.Fatalf("events = %d, want assistant + tool", len(got))
+	}
+	if got[0].Output.MessageOutput.Role != schema.Assistant || got[0].Output.MessageOutput.Message.Content != "text" {
+		t.Fatalf("assistant event = %#v", got[0].Output.MessageOutput)
+	}
+	if got[1].Output.MessageOutput.Role != schema.Tool || got[1].Output.MessageOutput.Message.ToolName != "grep" {
+		t.Fatalf("tool event = %#v", got[1].Output.MessageOutput)
+	}
+}
+
+func TestAdaptAgenticEventToEinoEventsStreamingAssistant(t *testing.T) {
+	stream := schema.StreamReaderFromArray([]*schema.AgenticMessage{
+		{
+			Role: schema.AgenticRoleTypeAssistant,
+			ContentBlocks: []*schema.ContentBlock{
+				schema.NewContentBlock(&schema.AssistantGenText{Text: "hel"}),
+			},
+		},
+		{
+			Role: schema.AgenticRoleTypeAssistant,
+			ContentBlocks: []*schema.ContentBlock{
+				schema.NewContentBlock(&schema.AssistantGenText{Text: "lo"}),
+			},
+		},
+	})
+	ev := &adk.TypedAgentEvent[*schema.AgenticMessage]{
+		Output: &adk.TypedAgentOutput[*schema.AgenticMessage]{
+			MessageOutput: &adk.TypedMessageVariant[*schema.AgenticMessage]{
+				IsStreaming:   true,
+				MessageStream: stream,
+				AgenticRole:   schema.AgenticRoleTypeAssistant,
+			},
+		},
+	}
+
+	got := adaptAgenticEventToEinoEvents(ev)
+	if len(got) != 1 {
+		t.Fatalf("events = %d, want 1", len(got))
+	}
+	mv := got[0].Output.MessageOutput
+	if !mv.IsStreaming || mv.Role != schema.Assistant {
+		t.Fatalf("stream variant = %#v", mv)
+	}
+	first, err := mv.MessageStream.Recv()
+	if err != nil || first.Content != "hel" {
+		t.Fatalf("first = %#v err=%v", first, err)
+	}
+	second, err := mv.MessageStream.Recv()
+	if err != nil || second.Content != "lo" {
+		t.Fatalf("second = %#v err=%v", second, err)
+	}
+	_, err = mv.MessageStream.Recv()
+	if !errors.Is(err, io.EOF) {
+		t.Fatalf("final err = %v, want EOF", err)
+	}
+}
+
+func TestAdaptAgenticStreamingToolResultFeedsClassicToolResultHandler(t *testing.T) {
+	stream := schema.StreamReaderFromArray([]*schema.AgenticMessage{
+		{
+			Role: schema.AgenticRoleTypeUser,
+			ContentBlocks: []*schema.ContentBlock{
+				schema.NewContentBlock(&schema.FunctionToolResult{
+					CallID: "call-agentic-stream",
+					Name:   "execute",
+					Content: []*schema.FunctionToolResultContentBlock{{
+						Type: schema.FunctionToolResultContentBlockTypeText,
+						Text: &schema.UserInputText{Text: "partial "},
+					}},
+				}),
+			},
+		},
+		{
+			Role: schema.AgenticRoleTypeUser,
+			ContentBlocks: []*schema.ContentBlock{
+				schema.NewContentBlock(&schema.FunctionToolResult{
+					CallID: "call-agentic-stream",
+					Name:   "execute",
+					Content: []*schema.FunctionToolResultContentBlock{{
+						Type: schema.FunctionToolResultContentBlockTypeText,
+						Text: &schema.UserInputText{Text: "done"},
+					}},
+				}),
+			},
+		},
+	})
+	ev := &adk.TypedAgentEvent[*schema.AgenticMessage]{
+		AgentName: "agentic",
+		Output: &adk.TypedAgentOutput[*schema.AgenticMessage]{
+			MessageOutput: &adk.TypedMessageVariant[*schema.AgenticMessage]{
+				IsStreaming:   true,
+				MessageStream: stream,
+				AgenticRole:   schema.AgenticRoleTypeUser,
+			},
+		},
+	}
+
+	got := adaptAgenticEventToEinoEvents(ev)
+	if len(got) != 1 || got[0].Output == nil || got[0].Output.MessageOutput == nil {
+		t.Fatalf("events = %#v", got)
+	}
+	mv := got[0].Output.MessageOutput
+	if !mv.IsStreaming || mv.Role != schema.Tool {
+		t.Fatalf("streaming variant = %#v, want tool stream", mv)
+	}
+
+	var event map[string]interface{}
+	runMessages := newEinoRunMessageAccumulator(nil)
+	emitter := newEinoToolResultProgressEmitter(einoToolResultProgressEmitterConfig{
+		ConversationID: "conv-agentic",
+		Progress: func(eventType, _ string, data interface{}) {
+			if eventType == "tool_result" {
+				event, _ = data.(map[string]interface{})
+			}
+		},
+	})
+	handler := newEinoToolResultEventHandler(einoToolResultEventHandlerConfig{
+		RunMessages: runMessages,
+		Emitter:     emitter,
+	})
+	if !handler.HandleStreaming(mv, "agentic") {
+		t.Fatal("agentic streaming tool result was not handled")
+	}
+	if event["toolName"] != "execute" || event["toolCallId"] != "call-agentic-stream" || event["result"] != "partial done" {
+		t.Fatalf("tool result event = %#v", event)
+	}
+	msgs := runMessages.Messages()
+	if len(msgs) != 1 || msgs[0].ToolName != "execute" || msgs[0].ToolCallID != "call-agentic-stream" || msgs[0].Content != "partial done" {
+		t.Fatalf("run messages = %#v", msgs)
+	}
+}
+
+func TestAdaptAgenticEventToEinoEventsPreservesErrorOnlyEvent(t *testing.T) {
+	wantErr := errors.New("boom")
+	ev := &adk.TypedAgentEvent[*schema.AgenticMessage]{AgentName: "agentic", Err: wantErr}
+
+	got := adaptAgenticEventToEinoEvents(ev)
+	if len(got) != 1 || got[0].AgentName != "agentic" || !errors.Is(got[0].Err, wantErr) {
+		t.Fatalf("events = %#v", got)
+	}
+}

internal/multiagent/eino_agentic_message.go

@@ -0,0 +1,184 @@
+package multiagent
+
+import (
+	"strings"
+
+	"github.com/cloudwego/eino/schema"
+)
+
+// EinoMessagesToAgentic converts the project's current ADK message history to
+// Eino's native AgenticMessage shape. It intentionally covers the text,
+// reasoning, function tool-call, and function tool-result channels used by the
+// agent runtime today; unsupported multimodal/provider-specific fields stay in
+// schema.Message until a real AgenticModel backend is wired.
+func EinoMessagesToAgentic(msgs []*schema.Message) []*schema.AgenticMessage {
+	if len(msgs) == 0 {
+		return nil
+	}
+	out := make([]*schema.AgenticMessage, 0, len(msgs))
+	for _, msg := range msgs {
+		if msg == nil {
+			continue
+		}
+		out = append(out, EinoMessageToAgentic(msg))
+	}
+	return out
+}
+
+func EinoMessageToAgentic(msg *schema.Message) *schema.AgenticMessage {
+	if msg == nil {
+		return nil
+	}
+	out := &schema.AgenticMessage{
+		Role:  messageRoleToAgentic(msg.Role),
+		Extra: cloneAnyMap(msg.Extra),
+	}
+	if msg.ResponseMeta != nil {
+		out.ResponseMeta = &schema.AgenticResponseMeta{TokenUsage: msg.ResponseMeta.Usage}
+	}
+	if text := strings.TrimSpace(msg.ReasoningContent); text != "" {
+		out.ContentBlocks = append(out.ContentBlocks, schema.NewContentBlock(&schema.Reasoning{Text: msg.ReasoningContent}))
+	}
+	switch msg.Role {
+	case schema.Assistant:
+		if msg.Content != "" {
+			out.ContentBlocks = append(out.ContentBlocks, schema.NewContentBlock(&schema.AssistantGenText{Text: msg.Content}))
+		}
+		for _, tc := range msg.ToolCalls {
+			out.ContentBlocks = append(out.ContentBlocks, schema.NewContentBlock(&schema.FunctionToolCall{
+				CallID:    tc.ID,
+				Name:      tc.Function.Name,
+				Arguments: tc.Function.Arguments,
+			}))
+		}
+	case schema.Tool:
+		out.Role = schema.AgenticRoleTypeUser
+		out.ContentBlocks = append(out.ContentBlocks, schema.NewContentBlock(&schema.FunctionToolResult{
+			CallID: msg.ToolCallID,
+			Name:   msg.ToolName,
+			Content: []*schema.FunctionToolResultContentBlock{{
+				Type: schema.FunctionToolResultContentBlockTypeText,
+				Text: &schema.UserInputText{Text: msg.Content},
+			}},
+		}))
+	default:
+		if msg.Content != "" {
+			out.ContentBlocks = append(out.ContentBlocks, schema.NewContentBlock(&schema.UserInputText{Text: msg.Content}))
+		}
+	}
+	return out
+}
+
+// AgenticMessagesToEino converts AgenticMessage values back into the classic
+// schema.Message form used by the existing ADK event drain and persistence code.
+func AgenticMessagesToEino(msgs []*schema.AgenticMessage) []*schema.Message {
+	if len(msgs) == 0 {
+		return nil
+	}
+	out := make([]*schema.Message, 0, len(msgs))
+	for _, msg := range msgs {
+		if msg == nil {
+			continue
+		}
+		out = append(out, AgenticMessageToEino(msg)...)
+	}
+	return out
+}
+
+func AgenticMessageToEino(msg *schema.AgenticMessage) []*schema.Message {
+	if msg == nil {
+		return nil
+	}
+	base := &schema.Message{
+		Role:  agenticRoleToMessage(msg.Role),
+		Extra: cloneAnyMap(msg.Extra),
+	}
+	if msg.ResponseMeta != nil {
+		base.ResponseMeta = &schema.ResponseMeta{Usage: msg.ResponseMeta.TokenUsage}
+	}
+	var toolResults []*schema.Message
+	for _, block := range msg.ContentBlocks {
+		if block == nil {
+			continue
+		}
+		switch {
+		case block.Reasoning != nil:
+			base.ReasoningContent += block.Reasoning.Text
+		case block.UserInputText != nil:
+			base.Content += block.UserInputText.Text
+		case block.AssistantGenText != nil:
+			base.Role = schema.Assistant
+			base.Content += block.AssistantGenText.Text
+		case block.FunctionToolCall != nil:
+			base.Role = schema.Assistant
+			base.ToolCalls = append(base.ToolCalls, schema.ToolCall{
+				ID:   block.FunctionToolCall.CallID,
+				Type: "function",
+				Function: schema.FunctionCall{
+					Name:      block.FunctionToolCall.Name,
+					Arguments: block.FunctionToolCall.Arguments,
+				},
+			})
+		case block.FunctionToolResult != nil:
+			toolResults = append(toolResults, functionToolResultToMessage(block.FunctionToolResult))
+		}
+	}
+	if len(toolResults) > 0 && base.Content == "" && base.ReasoningContent == "" && len(base.ToolCalls) == 0 {
+		return toolResults
+	}
+	out := []*schema.Message{base}
+	out = append(out, toolResults...)
+	return out
+}
+
+func messageRoleToAgentic(role schema.RoleType) schema.AgenticRoleType {
+	switch role {
+	case schema.System:
+		return schema.AgenticRoleTypeSystem
+	case schema.Assistant:
+		return schema.AgenticRoleTypeAssistant
+	default:
+		return schema.AgenticRoleTypeUser
+	}
+}
+
+func agenticRoleToMessage(role schema.AgenticRoleType) schema.RoleType {
+	switch role {
+	case schema.AgenticRoleTypeSystem:
+		return schema.System
+	case schema.AgenticRoleTypeAssistant:
+		return schema.Assistant
+	default:
+		return schema.User
+	}
+}
+
+func functionToolResultToMessage(result *schema.FunctionToolResult) *schema.Message {
+	if result == nil {
+		return nil
+	}
+	parts := make([]string, 0, len(result.Content))
+	for _, block := range result.Content {
+		if block == nil || block.Text == nil {
+			continue
+		}
+		parts = append(parts, block.Text.Text)
+	}
+	return &schema.Message{
+		Role:       schema.Tool,
+		Content:    strings.Join(parts, ""),
+		ToolCallID: result.CallID,
+		ToolName:   result.Name,
+	}
+}
+
+func cloneAnyMap(in map[string]any) map[string]any {
+	if len(in) == 0 {
+		return nil
+	}
+	out := make(map[string]any, len(in))
+	for k, v := range in {
+		out[k] = v
+	}
+	return out
+}

internal/multiagent/eino_agentic_message_test.go

@@ -0,0 +1,154 @@
+package multiagent
+
+import (
+	"testing"
+
+	"github.com/cloudwego/eino/schema"
+)
+
+func TestEinoMessageToAgenticPreservesAssistantToolCalls(t *testing.T) {
+	msg := &schema.Message{
+		Role:             schema.Assistant,
+		Content:          "I will scan it.",
+		ReasoningContent: "Need enumerate first.",
+		ToolCalls: []schema.ToolCall{{
+			ID:   "call-1",
+			Type: "function",
+			Function: schema.FunctionCall{
+				Name:      "nmap",
+				Arguments: `{"target":"127.0.0.1"}`,
+			},
+		}},
+		Extra: map[string]any{"trace": "kept"},
+	}
+
+	got := EinoMessageToAgentic(msg)
+	if got.Role != schema.AgenticRoleTypeAssistant {
+		t.Fatalf("role = %q, want assistant", got.Role)
+	}
+	if len(got.ContentBlocks) != 3 {
+		t.Fatalf("blocks = %d, want 3", len(got.ContentBlocks))
+	}
+	if got.ContentBlocks[0].Reasoning == nil || got.ContentBlocks[0].Reasoning.Text != msg.ReasoningContent {
+		t.Fatalf("reasoning block = %#v", got.ContentBlocks[0])
+	}
+	if got.ContentBlocks[1].AssistantGenText == nil || got.ContentBlocks[1].AssistantGenText.Text != msg.Content {
+		t.Fatalf("assistant text block = %#v", got.ContentBlocks[1])
+	}
+	call := got.ContentBlocks[2].FunctionToolCall
+	if call == nil || call.CallID != "call-1" || call.Name != "nmap" || call.Arguments != `{"target":"127.0.0.1"}` {
+		t.Fatalf("tool call block = %#v", got.ContentBlocks[2])
+	}
+	if got.Extra["trace"] != "kept" {
+		t.Fatalf("extra = %#v", got.Extra)
+	}
+}
+
+func TestEinoMessageToAgenticMapsToolResultAsUserFunctionResult(t *testing.T) {
+	msg := &schema.Message{
+		Role:       schema.Tool,
+		Content:    "22/tcp open ssh",
+		ToolCallID: "call-ssh",
+		ToolName:   "nmap",
+	}
+
+	got := EinoMessageToAgentic(msg)
+	if got.Role != schema.AgenticRoleTypeUser {
+		t.Fatalf("role = %q, want user", got.Role)
+	}
+	if len(got.ContentBlocks) != 1 || got.ContentBlocks[0].FunctionToolResult == nil {
+		t.Fatalf("blocks = %#v", got.ContentBlocks)
+	}
+	result := got.ContentBlocks[0].FunctionToolResult
+	if result.CallID != "call-ssh" || result.Name != "nmap" {
+		t.Fatalf("tool result metadata = %#v", result)
+	}
+	if len(result.Content) != 1 || result.Content[0].Text == nil || result.Content[0].Text.Text != "22/tcp open ssh" {
+		t.Fatalf("tool result content = %#v", result.Content)
+	}
+}
+
+func TestAgenticMessageToEinoPreservesAssistantBlocks(t *testing.T) {
+	msg := &schema.AgenticMessage{
+		Role: schema.AgenticRoleTypeAssistant,
+		ContentBlocks: []*schema.ContentBlock{
+			schema.NewContentBlock(&schema.Reasoning{Text: "Think first."}),
+			schema.NewContentBlock(&schema.AssistantGenText{Text: "Calling scanner."}),
+			schema.NewContentBlock(&schema.FunctionToolCall{
+				CallID:    "call-2",
+				Name:      "scan",
+				Arguments: `{"host":"example.com"}`,
+			}),
+		},
+	}
+
+	got := AgenticMessageToEino(msg)
+	if len(got) != 1 {
+		t.Fatalf("messages = %d, want 1", len(got))
+	}
+	if got[0].Role != schema.Assistant || got[0].Content != "Calling scanner." || got[0].ReasoningContent != "Think first." {
+		t.Fatalf("assistant message = %#v", got[0])
+	}
+	if len(got[0].ToolCalls) != 1 || got[0].ToolCalls[0].ID != "call-2" || got[0].ToolCalls[0].Function.Name != "scan" {
+		t.Fatalf("tool calls = %#v", got[0].ToolCalls)
+	}
+}
+
+func TestAgenticMessageToEinoSplitsPureToolResult(t *testing.T) {
+	msg := &schema.AgenticMessage{
+		Role: schema.AgenticRoleTypeUser,
+		ContentBlocks: []*schema.ContentBlock{
+			schema.NewContentBlock(&schema.FunctionToolResult{
+				CallID: "call-3",
+				Name:   "execute",
+				Content: []*schema.FunctionToolResultContentBlock{{
+					Type: schema.FunctionToolResultContentBlockTypeText,
+					Text: &schema.UserInputText{Text: "done"},
+				}},
+			}),
+		},
+	}
+
+	got := AgenticMessageToEino(msg)
+	if len(got) != 1 {
+		t.Fatalf("messages = %d, want 1", len(got))
+	}
+	if got[0].Role != schema.Tool || got[0].ToolCallID != "call-3" || got[0].ToolName != "execute" || got[0].Content != "done" {
+		t.Fatalf("tool message = %#v", got[0])
+	}
+}
+
+func TestEinoAgenticRoundTripForSupportedFields(t *testing.T) {
+	msgs := []*schema.Message{
+		schema.SystemMessage("system"),
+		schema.UserMessage("user"),
+		{
+			Role:    schema.Assistant,
+			Content: "assistant",
+			ToolCalls: []schema.ToolCall{{
+				ID:       "call-4",
+				Type:     "function",
+				Function: schema.FunctionCall{Name: "grep", Arguments: `{"q":"token"}`},
+			}},
+		},
+		{
+			Role:       schema.Tool,
+			Content:    "match",
+			ToolCallID: "call-4",
+			ToolName:   "grep",
+		},
+	}
+
+	got := AgenticMessagesToEino(EinoMessagesToAgentic(msgs))
+	if len(got) != len(msgs) {
+		t.Fatalf("round trip messages = %d, want %d: %#v", len(got), len(msgs), got)
+	}
+	for i := range msgs {
+		if got[i].Role != msgs[i].Role || got[i].Content != msgs[i].Content || got[i].ToolCallID != msgs[i].ToolCallID || got[i].ToolName != msgs[i].ToolName {
+			t.Fatalf("message[%d] = %#v, want %#v", i, got[i], msgs[i])
+		}
+		if len(got[i].ToolCalls) != len(msgs[i].ToolCalls) {
+			t.Fatalf("message[%d] tool calls = %#v, want %#v", i, got[i].ToolCalls, msgs[i].ToolCalls)
+		}
+	}
+}

internal/multiagent/eino_agentic_model_gate.go

@@ -0,0 +1,109 @@
+package multiagent
+
+import (
+	"context"
+	"strings"
+
+	"github.com/cloudwego/eino/components/model"
+	"go.uber.org/zap"
+)
+
+type einoAgenticModelFactory func(context.Context) (model.AgenticModel, error)
+
+type einoAgenticRuntimeSupport struct {
+	TypedRunner           bool
+	Streaming             bool
+	CancelMonitoring      bool
+	ModelRetry            bool
+	ModelFailover         bool
+	ToolResultObservation bool
+	MCPExecutionAudit     bool
+}
+
+type einoAgenticModelGate struct {
+	Ready   bool
+	Reason  string
+	Missing []string
+}
+
+// Eino v0.9.14 wires AgenticMessage through the same generic TypedRunner,
+// stream cancel monitoring, model retry, and model failover wrappers used by
+// schema.Message. Keep this matrix explicit so future upgrades are audited
+// deliberately instead of flipping the AgenticModel path by accident.
+func einoAgenticRuntimeSupportV0914() einoAgenticRuntimeSupport {
+	return einoAgenticRuntimeSupport{
+		TypedRunner:           true,
+		Streaming:             true,
+		CancelMonitoring:      true,
+		ModelRetry:            true,
+		ModelFailover:         true,
+		ToolResultObservation: true,
+		MCPExecutionAudit:     true,
+	}
+}
+
+func evaluateEinoAgenticModelGate(factory einoAgenticModelFactory, support einoAgenticRuntimeSupport) einoAgenticModelGate {
+	missing := make([]string, 0, 8)
+	if factory == nil {
+		missing = append(missing, "model.AgenticModel backend")
+	} else {
+		if m, err := factory(context.Background()); err != nil || m == nil {
+			missing = append(missing, "model.AgenticModel backend")
+		}
+	}
+	if !support.TypedRunner {
+		missing = append(missing, "adk.TypedRunner[*schema.AgenticMessage]")
+	}
+	if !support.Streaming {
+		missing = append(missing, "AgenticMessage streaming")
+	}
+	if !support.CancelMonitoring {
+		missing = append(missing, "AgenticMessage model-stream cancel monitoring")
+	}
+	if !support.ModelRetry {
+		missing = append(missing, "AgenticMessage ModelRetry")
+	}
+	if !support.ModelFailover {
+		missing = append(missing, "AgenticMessage ModelFailover")
+	}
+	if !support.ToolResultObservation {
+		missing = append(missing, "AgenticMessage tool-result observation")
+	}
+	if !support.MCPExecutionAudit {
+		missing = append(missing, "AgenticMessage MCP execution audit")
+	}
+	if len(missing) == 0 {
+		return einoAgenticModelGate{Ready: true, Reason: "ready"}
+	}
+	return einoAgenticModelGate{
+		Reason:  "agentic_model_not_ready: " + strings.Join(missing, ", "),
+		Missing: missing,
+	}
+}
+
+func logEinoAgenticModelGate(logger *zap.Logger, scope, orchestration string, gate einoAgenticModelGate) {
+	if logger == nil {
+		return
+	}
+	fields := []zap.Field{
+		zap.String("scope", scope),
+		zap.String("orchestration", orchestration),
+		zap.Bool("ready", gate.Ready),
+		zap.String("reason", gate.Reason),
+		zap.Strings("missing", gate.Missing),
+	}
+	if gate.Ready {
+		logger.Info("eino agentic model gate ready", fields...)
+		return
+	}
+	logger.Info("eino agentic model gate disabled", fields...)
+}
+
+func agenticTextModelFactory(m model.AgenticModel) einoAgenticModelFactory {
+	if m == nil {
+		return nil
+	}
+	return func(context.Context) (model.AgenticModel, error) {
+		return m, nil
+	}
+}

internal/multiagent/eino_agentic_model_gate_test.go

@@ -0,0 +1,93 @@
+package multiagent
+
+import (
+	"context"
+	"errors"
+	"testing"
+
+	"github.com/cloudwego/eino/components/model"
+	"github.com/cloudwego/eino/schema"
+)
+
+type fakeAgenticGateModel struct{}
+
+func (m *fakeAgenticGateModel) Generate(context.Context, []*schema.AgenticMessage, ...model.Option) (*schema.AgenticMessage, error) {
+	return &schema.AgenticMessage{Role: schema.AgenticRoleTypeAssistant}, nil
+}
+
+func (m *fakeAgenticGateModel) Stream(context.Context, []*schema.AgenticMessage, ...model.Option) (*schema.StreamReader[*schema.AgenticMessage], error) {
+	return schema.StreamReaderFromArray([]*schema.AgenticMessage{{Role: schema.AgenticRoleTypeAssistant}}), nil
+}
+
+func TestEinoAgenticModelGateV0914WaitsOnlyForBackend(t *testing.T) {
+	gate := evaluateEinoAgenticModelGate(nil, einoAgenticRuntimeSupportV0914())
+
+	if gate.Ready {
+		t.Fatal("v0.9.14 gate should stay disabled without an AgenticModel backend")
+	}
+	if !containsString(gate.Missing, "model.AgenticModel backend") {
+		t.Fatalf("missing = %#v, want backend reason", gate.Missing)
+	}
+	for _, unexpected := range []string{
+		"AgenticMessage model-stream cancel monitoring",
+		"AgenticMessage ModelRetry",
+		"AgenticMessage ModelFailover",
+		"AgenticMessage tool-result observation",
+		"AgenticMessage MCP execution audit",
+	} {
+		if containsString(gate.Missing, unexpected) {
+			t.Fatalf("missing = %#v, should not include %q for v0.9.14 runtime support", gate.Missing, unexpected)
+		}
+	}
+}
+
+func TestEinoAgenticModelGateV0914ReadyWithBackend(t *testing.T) {
+	gate := evaluateEinoAgenticModelGate(agenticTextModelFactory(&fakeAgenticGateModel{}), einoAgenticRuntimeSupportV0914())
+
+	if !gate.Ready {
+		t.Fatalf("gate = %#v, want ready when v0.9.14 runtime support has a backend", gate)
+	}
+	if gate.Reason != "ready" || len(gate.Missing) != 0 {
+		t.Fatalf("gate details = %#v", gate)
+	}
+}
+
+func TestEinoAgenticModelGateReadyWhenBackendAndRuntimeParityExist(t *testing.T) {
+	gate := evaluateEinoAgenticModelGate(agenticTextModelFactory(&fakeAgenticGateModel{}), einoAgenticRuntimeSupport{
+		TypedRunner:           true,
+		Streaming:             true,
+		CancelMonitoring:      true,
+		ModelRetry:            true,
+		ModelFailover:         true,
+		ToolResultObservation: true,
+		MCPExecutionAudit:     true,
+	})
+
+	if !gate.Ready {
+		t.Fatalf("gate = %#v, want ready", gate)
+	}
+	if gate.Reason != "ready" || len(gate.Missing) != 0 {
+		t.Fatalf("gate details = %#v", gate)
+	}
+}
+
+func TestEinoAgenticModelGateTreatsFactoryErrorAsMissingBackend(t *testing.T) {
+	gate := evaluateEinoAgenticModelGate(func(context.Context) (model.AgenticModel, error) {
+		return nil, errors.New("not implemented")
+	}, einoAgenticRuntimeSupport{
+		TypedRunner:           true,
+		Streaming:             true,
+		CancelMonitoring:      true,
+		ModelRetry:            true,
+		ModelFailover:         true,
+		ToolResultObservation: true,
+		MCPExecutionAudit:     true,
+	})
+
+	if gate.Ready {
+		t.Fatal("factory error should disable gate")
+	}
+	if !containsString(gate.Missing, "model.AgenticModel backend") {
+		t.Fatalf("missing = %#v, want backend reason", gate.Missing)
+	}
+}

internal/multiagent/eino_agentic_summarize.go

@@ -0,0 +1,278 @@
+package multiagent
+
+import (
+	"context"
+	"fmt"
+	"os"
+	"path/filepath"
+	"strings"
+
+	"cyberstrike-ai/internal/config"
+	"cyberstrike-ai/internal/database"
+
+	einoopenai "github.com/cloudwego/eino-ext/components/model/openai"
+	"github.com/cloudwego/eino/adk"
+	"github.com/cloudwego/eino/adk/middlewares/summarization"
+	"github.com/cloudwego/eino/components/model"
+	"github.com/cloudwego/eino/schema"
+	"go.uber.org/zap"
+)
+
+// newEinoAgenticSummarizationMiddleware wires the project's domain-specific
+// compaction policy into Eino's native typed AgenticMessage summarization.
+func newEinoAgenticSummarizationMiddleware(
+	ctx context.Context,
+	summaryModel model.BaseModel[*schema.AgenticMessage],
+	appCfg *config.Config,
+	mwCfg *config.MultiAgentEinoMiddlewareConfig,
+	conversationID string,
+	db *database.DB,
+	projectID string,
+	logger *zap.Logger,
+) (adk.TypedChatModelAgentMiddleware[*schema.AgenticMessage], error) {
+	if summaryModel == nil || appCfg == nil {
+		return nil, fmt.Errorf("multiagent: agentic summarization 需要 model 与配置")
+	}
+	maxTotal := appCfg.OpenAI.MaxTotalTokens
+	if maxTotal <= 0 {
+		maxTotal = 120000
+	}
+	triggerRatio := 0.8
+	emitInternalEvents := true
+	outputReserve := config.DefaultSummarizationOutputReserveTokens
+	userLedgerMaxRunes := config.DefaultSummarizationUserIntentLedgerMaxRunes
+	userLedgerEntryMaxRunes := config.DefaultSummarizationUserIntentLedgerEntryMaxRunes
+	toolMaxBytes := config.MultiAgentEinoMiddlewareConfig{}.ReductionMaxLengthForTruncEffective()
+	if mwCfg != nil {
+		triggerRatio = mwCfg.SummarizationTriggerRatioEffective()
+		emitInternalEvents = mwCfg.SummarizationEmitInternalEventsEffective()
+		outputReserve = mwCfg.SummarizationOutputReserveTokensEffective()
+		userLedgerMaxRunes = mwCfg.SummarizationUserIntentLedgerMaxRunesEffective()
+		userLedgerEntryMaxRunes = mwCfg.SummarizationUserIntentLedgerEntryMaxRunesEffective()
+		toolMaxBytes = mwCfg.ReductionMaxLengthForTruncEffective()
+	}
+
+	ledgerWindowCap := modelFacingRuneBudget(maxTotal, 0.20)
+	userLedgerMaxRunes = minPositiveInt(userLedgerMaxRunes, ledgerWindowCap)
+	userLedgerEntryMaxRunes = minPositiveInt(userLedgerEntryMaxRunes, userLedgerMaxRunes)
+	trigger := int(float64(maxTotal) * triggerRatio)
+	if trigger < 4096 {
+		trigger = maxTotal
+		if trigger < 4096 {
+			trigger = 4096
+		}
+	}
+	modelName := strings.TrimSpace(appCfg.OpenAI.Model)
+	if modelName == "" {
+		modelName = "gpt-4o"
+	}
+	classicTokenCounter := einoSummarizationTokenCounter(modelName)
+	agenticTokenCounter := func(ctx context.Context, input *summarization.TypedTokenCounterInput[*schema.AgenticMessage]) (int, error) {
+		if input == nil {
+			return 0, nil
+		}
+		return classicTokenCounter(ctx, &summarization.TokenCounterInput{
+			Messages: AgenticMessagesToEino(input.Messages),
+			Tools:    input.Tools,
+		})
+	}
+	recentTrailMax := trigger / 4
+	if recentTrailMax < 2048 {
+		recentTrailMax = 2048
+	}
+	if recentTrailMax > trigger/2 {
+		recentTrailMax = trigger / 2
+	}
+	summaryInputMax := trigger - outputReserve
+	if summaryInputMax < 4096 {
+		summaryInputMax = trigger * 80 / 100
+	}
+	if summaryInputMax < 4096 {
+		summaryInputMax = 4096
+	}
+
+	transcriptPath := ""
+	if conv := strings.TrimSpace(conversationID); conv != "" {
+		baseRoot := filepath.Join(os.TempDir(), "cyberstrike-summarization")
+		if dbPath := strings.TrimSpace(appCfg.Database.Path); dbPath != "" {
+			baseRoot = filepath.Join(filepath.Dir(dbPath), "conversation_artifacts", sanitizeEinoPathSegment(conv), "summarization")
+		}
+		base := baseRoot
+		if abs, err := filepath.Abs(base); err == nil {
+			base = abs
+		}
+		if mkErr := os.MkdirAll(base, 0o755); mkErr == nil {
+			transcriptPath = filepath.Join(base, "transcript.txt")
+		}
+	}
+
+	retryPolicy := einoTransientRunRetryPolicyFromMW(mwCfg)
+	retryMax := retryPolicy.maxAttempts
+	var summaryOverflowRetries int
+	summaryModelOpts := []model.Option{
+		einoopenai.WithMaxCompletionTokens(outputReserve),
+	}
+
+	mw, err := summarization.NewTyped[*schema.AgenticMessage](ctx, &summarization.TypedConfig[*schema.AgenticMessage]{
+		Model:        summaryModel,
+		ModelOptions: summaryModelOpts,
+		GenModelInput: func(ctx context.Context, sysInstruction, userInstruction *schema.AgenticMessage, originalMsgs []*schema.AgenticMessage) ([]*schema.AgenticMessage, error) {
+			classicOriginal := AgenticMessagesToEino(originalMsgs)
+			if transcriptPath != "" && len(classicOriginal) > 0 {
+				if werr := writeSummarizationTranscript(transcriptPath, classicOriginal); werr != nil && logger != nil {
+					logger.Warn("eino agentic summarization transcript preflight 写入失败",
+						zap.String("path", transcriptPath), zap.Error(werr))
+				}
+			}
+			budget := summaryInputMax
+			aggressive := summaryOverflowRetries > 0
+			if aggressive {
+				budget = summaryInputMax * 70 / 100
+				if budget < 4096 {
+					budget = 4096
+				}
+			}
+			input, dropped, berr := buildBudgetedSummarizationModelInput(
+				ctx,
+				agenticInstructionToClassic(sysInstruction, schema.System),
+				agenticInstructionToClassic(userInstruction, schema.User),
+				classicOriginal,
+				classicTokenCounter,
+				budget,
+				summarizationInputBudgetOpts{
+					toolMaxBytes: toolMaxBytes,
+					spillRef:     transcriptPath,
+					aggressive:   aggressive,
+				},
+			)
+			if logger != nil && (berr != nil || dropped > 0 || aggressive) {
+				fields := []zap.Field{
+					zap.Int("max_input_tokens", budget),
+					zap.Int("trigger_context_tokens", trigger),
+					zap.Int("output_reserve_tokens", outputReserve),
+					zap.Int("dropped_rounds", dropped),
+					zap.Bool("aggressive", aggressive),
+				}
+				if berr != nil {
+					fields = append(fields, zap.Error(berr))
+					logger.Warn("eino agentic summarization input budget failed", fields...)
+				} else {
+					logger.Info("eino agentic summarization input bounded", fields...)
+				}
+			}
+			return EinoMessagesToAgentic(input), berr
+		},
+		Trigger: &summarization.TriggerCondition{
+			ContextTokens: trigger,
+		},
+		TokenCounter:       agenticTokenCounter,
+		UserInstruction:    einoSummarizeUserInstruction,
+		EmitInternalEvents: emitInternalEvents,
+		TranscriptFilePath: transcriptPath,
+		Retry: &summarization.TypedRetryConfig[*schema.AgenticMessage]{
+			MaxRetries: &retryMax,
+			ShouldRetry: func(_ context.Context, _ *schema.AgenticMessage, err error) bool {
+				if isEinoContextOverflowError(err) && summaryOverflowRetries < 1 {
+					summaryOverflowRetries++
+					if logger != nil {
+						logger.Warn("eino agentic summarization context overflow, retrying with aggressive compaction",
+							zap.Error(err),
+						)
+					}
+					return true
+				}
+				retry := isEinoTransientRunError(err)
+				if retry && logger != nil {
+					logger.Warn("eino agentic summarization generate transient error, will retry if attempts remain",
+						zap.Error(err),
+						zap.Int("max_retries", retryMax),
+					)
+				}
+				return retry
+			},
+		},
+		Finalize: func(ctx context.Context, originalMessages []*schema.AgenticMessage, summary *schema.AgenticMessage) ([]*schema.AgenticMessage, error) {
+			classicOriginal := AgenticMessagesToEino(originalMessages)
+			classicSummary := agenticSummaryToClassicMessage(summary)
+			if classicSummary == nil {
+				return nil, fmt.Errorf("agentic summarization returned empty summary")
+			}
+			compactionMessages := stripOriginalUserIntentLedgerFromMessages(classicOriginal)
+			defaultFinalized, derr := summarization.DefaultFinalize(ctx, compactionMessages, classicSummary)
+			if derr != nil {
+				return nil, derr
+			}
+			if len(defaultFinalized) == 0 {
+				return nil, fmt.Errorf("agentic summarization default finalize returned no messages")
+			}
+			summaryMsg := appendTranscriptPathToSummarizationMessage(defaultFinalized[len(defaultFinalized)-1], transcriptPath)
+			summaryMsg = stripAnalysisFromSummarizationMessage(summaryMsg)
+			userLedger := buildOriginalUserIntentLedgerMessage(classicOriginal, userLedgerMaxRunes, userLedgerEntryMaxRunes)
+			out, ferr := summarizeFinalizeWithRecentAssistantToolTrail(ctx, compactionMessages, summaryMsg, classicTokenCounter, recentTrailMax)
+			if ferr != nil {
+				return nil, ferr
+			}
+			out = mergeMessageIntoLeadingSystem(out, userLedger)
+			if appCfg != nil {
+				out = refreshFactIndexInMessages(out, db, projectID, appCfg.Project, logger)
+			}
+			return EinoMessagesToAgentic(out), nil
+		},
+		Callback: func(ctx context.Context, before, after adk.TypedChatModelAgentState[*schema.AgenticMessage]) error {
+			classicBefore := AgenticMessagesToEino(before.Messages)
+			classicAfter := AgenticMessagesToEino(after.Messages)
+			if transcriptPath != "" && len(classicBefore) > 0 {
+				if werr := writeSummarizationTranscript(transcriptPath, classicBefore); werr != nil && logger != nil {
+					logger.Warn("eino agentic summarization transcript 写入失败",
+						zap.String("path", transcriptPath),
+						zap.Error(werr),
+					)
+				}
+			}
+			if logger != nil {
+				beforeTokens, _ := classicTokenCounter(ctx, &summarization.TokenCounterInput{Messages: classicBefore})
+				afterTokens, _ := classicTokenCounter(ctx, &summarization.TokenCounterInput{Messages: classicAfter})
+				logger.Info("eino agentic summarization 已压缩上下文",
+					zap.Int("messages_before", len(before.Messages)),
+					zap.Int("messages_after", len(after.Messages)),
+					zap.Int("tokens_before_estimated", beforeTokens),
+					zap.Int("tokens_after_estimated", afterTokens),
+					zap.Int("max_total_tokens", maxTotal),
+					zap.Int("trigger_context_tokens", trigger),
+					zap.String("transcript_file", transcriptPath),
+				)
+			}
+			return nil
+		},
+	})
+	if err != nil {
+		return nil, fmt.Errorf("summarization.NewTyped[AgenticMessage]: %w", err)
+	}
+	return mw, nil
+}
+
+func agenticInstructionToClassic(msg *schema.AgenticMessage, fallbackRole schema.RoleType) *schema.Message {
+	msgs := AgenticMessageToEino(msg)
+	if len(msgs) > 0 && msgs[0] != nil {
+		return msgs[0]
+	}
+	return &schema.Message{Role: fallbackRole}
+}
+
+func agenticSummaryToClassicMessage(msg *schema.AgenticMessage) *schema.Message {
+	msgs := AgenticMessageToEino(msg)
+	for _, m := range msgs {
+		if m == nil {
+			continue
+		}
+		if m.Role == schema.Assistant || strings.TrimSpace(m.Content) != "" || m.ReasoningContent != "" {
+			if m.Role != schema.Assistant {
+				cp := *m
+				cp.Role = schema.Assistant
+				return &cp
+			}
+			return m
+		}
+	}
+	return nil
+}

internal/multiagent/eino_agentic_summarize_test.go

@@ -0,0 +1,210 @@
+package multiagent
+
+import (
+	"context"
+	"path/filepath"
+	"strings"
+	"testing"
+
+	"cyberstrike-ai/internal/config"
+
+	"github.com/cloudwego/eino/adk"
+	"github.com/cloudwego/eino/schema"
+)
+
+func TestNewEinoAgenticSummarizationMiddlewareCompactsWithNativeTypedMiddleware(t *testing.T) {
+	t.Parallel()
+	ctx := context.Background()
+	emit := false
+	summaryModel := &capturingAgenticChatModel{
+		output: &schema.AgenticMessage{
+			Role: schema.AgenticRoleTypeAssistant,
+			ContentBlocks: []*schema.ContentBlock{schema.NewContentBlock(&schema.AssistantGenText{Text: `<analysis>检查历史</analysis>
+<summary>
+## 1. 授权范围与约束
+- 仅测试 example.com
+
+## 7. 当前进度、策略决策与下一步
+- 继续验证 SQL 注入路径
+</summary>`})},
+		},
+	}
+	appCfg := &config.Config{}
+	appCfg.OpenAI.Model = "gpt-4o"
+	appCfg.OpenAI.MaxTotalTokens = 5000
+	appCfg.Database.Path = filepath.Join(t.TempDir(), "cyberstrike.db")
+	mwCfg := &config.MultiAgentEinoMiddlewareConfig{
+		SummarizationEmitInternalEvents:  &emit,
+		SummarizationOutputReserveTokens: 1024,
+	}
+
+	mw, err := newEinoAgenticSummarizationMiddleware(ctx, summaryModel, appCfg, mwCfg, "conv-agentic", nil, "", nil)
+	if err != nil {
+		t.Fatalf("newEinoAgenticSummarizationMiddleware: %v", err)
+	}
+	state := &adk.TypedChatModelAgentState[*schema.AgenticMessage]{
+		Messages: []*schema.AgenticMessage{
+			schema.SystemAgenticMessage("system root"),
+			schema.UserAgenticMessage("授权范围 example.com\n" + strings.Repeat("历史扫描输出 ", 12000)),
+			agenticAssistantTextMessage("已记录范围"),
+			schema.UserAgenticMessage("继续验证 SQL 注入路径"),
+		},
+	}
+
+	_, after, err := mw.BeforeModelRewriteState(ctx, state, nil)
+	if err != nil {
+		t.Fatalf("BeforeModelRewriteState: %v", err)
+	}
+	inputs := summaryModel.snapshotInputs()
+	if len(inputs) != 1 || len(inputs[0]) == 0 {
+		t.Fatalf("summary model inputs = %#v, want one typed AgenticMessage call", inputs)
+	}
+	if after == nil {
+		t.Fatal("after state is nil")
+	}
+	classicAfter := AgenticMessagesToEino(after.Messages)
+	joined := joinClassicMessageContent(classicAfter)
+	if strings.Contains(joined, "<analysis>") {
+		t.Fatalf("analysis block leaked into compacted context: %s", joined)
+	}
+	for _, want := range []string{"继续验证 SQL 注入路径", "原始用户输入与约束账本", "完整的对话记录位于"} {
+		if !strings.Contains(joined, want) {
+			t.Fatalf("compacted context missing %q:\n%s", want, joined)
+		}
+	}
+}
+
+func TestEinoAgenticChatModelAgentCompactsContextBeforeBusinessModel(t *testing.T) {
+	t.Parallel()
+	ctx := context.Background()
+	emit := false
+	summaryModel := &capturingAgenticChatModel{
+		output: agenticAssistantTextMessage(`<analysis>internal scratchpad</analysis>
+<summary>
+## 1. 授权范围与约束
+- 仅测试 example.com
+
+## 7. 当前进度、策略决策与下一步
+- 继续验证 SQL 注入路径
+</summary>`),
+	}
+	businessModel := &capturingAgenticChatModel{
+		output: agenticAssistantTextMessage("business answer after compaction"),
+	}
+	appCfg := &config.Config{}
+	appCfg.OpenAI.Model = "gpt-4o"
+	appCfg.OpenAI.MaxTotalTokens = 5000
+	appCfg.Database.Path = filepath.Join(t.TempDir(), "cyberstrike.db")
+	mwCfg := &config.MultiAgentEinoMiddlewareConfig{
+		SummarizationEmitInternalEvents:  &emit,
+		SummarizationOutputReserveTokens: 1024,
+	}
+	sumMw, err := newEinoAgenticSummarizationMiddleware(ctx, summaryModel, appCfg, mwCfg, "conv-agentic-e2e", nil, "", nil)
+	if err != nil {
+		t.Fatalf("newEinoAgenticSummarizationMiddleware: %v", err)
+	}
+	trace := newModelFacingTraceHolder()
+	agent, err := newEinoAgenticChatModelAgentAdapter(ctx, einoAgenticChatModelAgentConfig{
+		Name:        "agentic",
+		Description: "agentic compaction e2e test",
+		Instruction: "system root",
+		Model:       businessModel,
+		Handlers: appendEinoAgenticChatModelTailMiddlewares(nil, einoChatModelTailConfig{
+			phase:                "agentic",
+			agenticSummarization: sumMw,
+			trace:                trace,
+		}),
+	})
+	if err != nil {
+		t.Fatalf("newEinoAgenticChatModelAgentAdapter: %v", err)
+	}
+
+	rawHistory := "授权范围 example.com\n" + strings.Repeat("原始扫描输出SHOULD_NOT_REACH_BUSINESS_MODEL ", 12000)
+	iter := agent.Run(ctx, &adk.AgentInput{
+		Messages: []*schema.Message{
+			schema.UserMessage(rawHistory),
+			schema.AssistantMessage("已记录范围", nil),
+			schema.UserMessage("继续验证 SQL 注入路径"),
+		},
+	})
+	var last *adk.AgentEvent
+	for {
+		ev, ok := iter.Next()
+		if !ok {
+			break
+		}
+		if ev.Err != nil {
+			t.Fatalf("agent event error: %v", ev.Err)
+		}
+		last = ev
+	}
+	if last == nil || last.Output == nil || last.Output.MessageOutput == nil {
+		t.Fatalf("last event = %#v, want message output", last)
+	}
+	if got := last.Output.MessageOutput.Message.Content; got != "business answer after compaction" {
+		t.Fatalf("business output = %q", got)
+	}
+
+	if inputs := summaryModel.snapshotInputs(); len(inputs) != 1 {
+		t.Fatalf("summary model calls = %d, want 1", len(inputs))
+	}
+	businessInputs := businessModel.snapshotInputs()
+	if len(businessInputs) != 1 {
+		t.Fatalf("business model calls = %d, want 1", len(businessInputs))
+	}
+	finalClassicInput := AgenticMessagesToEino(businessInputs[0])
+	joined := joinClassicMessageContent(finalClassicInput)
+	for _, want := range []string{"继续验证 SQL 注入路径", "原始用户输入与约束账本", "完整的对话记录位于"} {
+		if !strings.Contains(joined, want) {
+			t.Fatalf("business model input missing %q:\n%s", want, joined)
+		}
+	}
+	if strings.Contains(joined, "<analysis>") {
+		t.Fatalf("analysis leaked to business model input:\n%s", joined)
+	}
+	if strings.Count(joined, "原始扫描输出SHOULD_NOT_REACH_BUSINESS_MODEL") > 3 {
+		t.Fatalf("raw oversized history leaked to business model input, count=%d", strings.Count(joined, "原始扫描输出SHOULD_NOT_REACH_BUSINESS_MODEL"))
+	}
+	traceJoined := joinClassicMessageContent(trace.Snapshot())
+	if !strings.Contains(traceJoined, "继续验证 SQL 注入路径") || strings.Count(traceJoined, "原始扫描输出SHOULD_NOT_REACH_BUSINESS_MODEL") > 3 {
+		t.Fatalf("model-facing trace not compacted:\n%s", traceJoined)
+	}
+}
+
+func TestAppendEinoAgenticChatModelTailMiddlewaresIncludesTypedSummarization(t *testing.T) {
+	t.Parallel()
+	mw := newAgenticSystemMessageNormalizerMiddleware(nil, "summary")
+	handlers := appendEinoAgenticChatModelTailMiddlewares(nil, einoChatModelTailConfig{
+		agenticSummarization: mw,
+		skipTrace:            true,
+	})
+	found := false
+	for _, h := range handlers {
+		if h == mw {
+			found = true
+			break
+		}
+	}
+	if !found {
+		t.Fatal("agentic summarization middleware was not appended")
+	}
+}
+
+func agenticAssistantTextMessage(text string) *schema.AgenticMessage {
+	return &schema.AgenticMessage{
+		Role:          schema.AgenticRoleTypeAssistant,
+		ContentBlocks: []*schema.ContentBlock{schema.NewContentBlock(&schema.AssistantGenText{Text: text})},
+	}
+}
+
+func joinClassicMessageContent(msgs []*schema.Message) string {
+	var b strings.Builder
+	for _, msg := range msgs {
+		if msg == nil {
+			continue
+		}
+		b.WriteString(msg.Content)
+		b.WriteByte('\n')
+	}
+	return b.String()
+}

internal/multiagent/eino_assistant_output_accumulator.go

@@ -0,0 +1,42 @@
+package multiagent
+
+import "strings"
+
+type einoAssistantOutputAccumulator struct {
+	orchMode                string
+	lastAssistant           string
+	lastPlanExecuteExecutor string
+}
+
+func newEinoAssistantOutputAccumulator(orchMode string) *einoAssistantOutputAccumulator {
+	return &einoAssistantOutputAccumulator{orchMode: orchMode}
+}
+
+func (a *einoAssistantOutputAccumulator) RecordMainAssistant(agentName, content string) bool {
+	if a == nil {
+		return false
+	}
+	content = strings.TrimSpace(content)
+	if content == "" {
+		return false
+	}
+	a.lastAssistant = content
+	if a.orchMode == "plan_execute" && strings.EqualFold(strings.TrimSpace(agentName), "executor") {
+		a.lastPlanExecuteExecutor = UnwrapPlanExecuteUserText(content)
+	}
+	return true
+}
+
+func (a *einoAssistantOutputAccumulator) LastAssistant() string {
+	if a == nil {
+		return ""
+	}
+	return a.lastAssistant
+}
+
+func (a *einoAssistantOutputAccumulator) LastPlanExecuteExecutor() string {
+	if a == nil {
+		return ""
+	}
+	return a.lastPlanExecuteExecutor
+}

internal/multiagent/eino_assistant_output_accumulator_test.go

@@ -0,0 +1,52 @@
+package multiagent
+
+import "testing"
+
+func TestEinoAssistantOutputAccumulatorRecordsMainAssistant(t *testing.T) {
+	acc := newEinoAssistantOutputAccumulator("deep")
+	if acc.RecordMainAssistant("lead", "  hello  ") != true {
+		t.Fatal("expected record")
+	}
+	if got := acc.LastAssistant(); got != "hello" {
+		t.Fatalf("last assistant = %q, want hello", got)
+	}
+	if got := acc.LastPlanExecuteExecutor(); got != "" {
+		t.Fatalf("plan execute executor = %q, want empty", got)
+	}
+	if acc.RecordMainAssistant("lead", "   ") {
+		t.Fatal("blank content should not record")
+	}
+	if got := acc.LastAssistant(); got != "hello" {
+		t.Fatalf("blank content changed last assistant to %q", got)
+	}
+}
+
+func TestEinoAssistantOutputAccumulatorPlanExecuteExecutor(t *testing.T) {
+	acc := newEinoAssistantOutputAccumulator("plan_execute")
+	raw := `{"response":"给用户看的正文","scratchpad":"internal"}`
+	acc.RecordMainAssistant("executor", raw)
+
+	if got := acc.LastAssistant(); got != raw {
+		t.Fatalf("last assistant = %q, want raw", got)
+	}
+	if got := acc.LastPlanExecuteExecutor(); got != "给用户看的正文" {
+		t.Fatalf("executor output = %q", got)
+	}
+	acc.RecordMainAssistant("planner", "planner note")
+	if got := acc.LastAssistant(); got != "planner note" {
+		t.Fatalf("last assistant after planner = %q", got)
+	}
+	if got := acc.LastPlanExecuteExecutor(); got != "给用户看的正文" {
+		t.Fatalf("planner should not overwrite executor output, got %q", got)
+	}
+}
+
+func TestEinoAssistantOutputAccumulatorNilSafe(t *testing.T) {
+	var acc *einoAssistantOutputAccumulator
+	if acc.RecordMainAssistant("agent", "hello") {
+		t.Fatal("nil accumulator should not record")
+	}
+	if acc.LastAssistant() != "" || acc.LastPlanExecuteExecutor() != "" {
+		t.Fatal("nil accumulator should return empty values")
+	}
+}

internal/multiagent/eino_assistant_stream_event_handler.go

@@ -0,0 +1,167 @@
+package multiagent
+
+import (
+	"context"
+	"errors"
+
+	"github.com/cloudwego/eino/adk"
+	"github.com/cloudwego/eino/schema"
+	"go.uber.org/zap"
+)
+
+type einoAssistantStreamEventHandlerConfig struct {
+	Context                   context.Context
+	ConversationID            string
+	OrchMode                  string
+	Progress                  func(eventType, message string, data interface{})
+	Logger                    *zap.Logger
+	SnapshotMCPIDs            func() []string
+	StreamsMainAssistant      func(agent string) bool
+	EinoRoleTag               func(agent string) string
+	RunProgress               *einoRunProgressTracker
+	StdoutSuppressor          *einoExecuteStdoutSuppressor
+	AssistantOutput           *einoAssistantOutputAccumulator
+	RunMessages               *einoRunMessageAccumulator
+	Usage                     *einoRunUsageAccumulator
+	ToolCallCompletion        *einoStreamToolCallCompletionHandler
+	NextMainStreamID          func() string
+	NextReasoningStreamID     func() string
+	NextSubAgentReplyStreamID func() string
+}
+
+type einoAssistantStreamEventHandler struct {
+	ctx                       context.Context
+	conversationID            string
+	orchMode                  string
+	progress                  func(eventType, message string, data interface{})
+	logger                    *zap.Logger
+	snapshotMCPIDs            func() []string
+	streamsMainAssistant      func(agent string) bool
+	einoRoleTag               func(agent string) string
+	runProgress               *einoRunProgressTracker
+	stdoutSuppressor          *einoExecuteStdoutSuppressor
+	assistantOutput           *einoAssistantOutputAccumulator
+	runMessages               *einoRunMessageAccumulator
+	usage                     *einoRunUsageAccumulator
+	toolCallCompletion        *einoStreamToolCallCompletionHandler
+	nextMainStreamID          func() string
+	nextReasoningStreamID     func() string
+	nextSubAgentReplyStreamID func() string
+}
+
+func newEinoAssistantStreamEventHandler(cfg einoAssistantStreamEventHandlerConfig) *einoAssistantStreamEventHandler {
+	if cfg.Context == nil {
+		cfg.Context = context.Background()
+	}
+	if cfg.SnapshotMCPIDs == nil {
+		cfg.SnapshotMCPIDs = func() []string { return nil }
+	}
+	if cfg.StreamsMainAssistant == nil {
+		cfg.StreamsMainAssistant = func(string) bool { return true }
+	}
+	if cfg.EinoRoleTag == nil {
+		cfg.EinoRoleTag = func(string) string { return "" }
+	}
+	if cfg.NextMainStreamID == nil {
+		cfg.NextMainStreamID = func() string { return "eino-main" }
+	}
+	if cfg.NextReasoningStreamID == nil {
+		cfg.NextReasoningStreamID = func() string { return "eino-reasoning" }
+	}
+	if cfg.NextSubAgentReplyStreamID == nil {
+		cfg.NextSubAgentReplyStreamID = func() string { return "eino-sub-reply" }
+	}
+	return &einoAssistantStreamEventHandler{
+		ctx:                       cfg.Context,
+		conversationID:            cfg.ConversationID,
+		orchMode:                  cfg.OrchMode,
+		progress:                  cfg.Progress,
+		logger:                    cfg.Logger,
+		snapshotMCPIDs:            cfg.SnapshotMCPIDs,
+		streamsMainAssistant:      cfg.StreamsMainAssistant,
+		einoRoleTag:               cfg.EinoRoleTag,
+		runProgress:               cfg.RunProgress,
+		stdoutSuppressor:          cfg.StdoutSuppressor,
+		assistantOutput:           cfg.AssistantOutput,
+		runMessages:               cfg.RunMessages,
+		usage:                     cfg.Usage,
+		toolCallCompletion:        cfg.ToolCallCompletion,
+		nextMainStreamID:          cfg.NextMainStreamID,
+		nextReasoningStreamID:     cfg.NextReasoningStreamID,
+		nextSubAgentReplyStreamID: cfg.NextSubAgentReplyStreamID,
+	}
+}
+
+func (h *einoAssistantStreamEventHandler) Handle(mv *adk.MessageVariant, agentName string) (handled bool, recvErr error) {
+	if h == nil || mv == nil || !mv.IsStreaming || mv.MessageStream == nil || mv.Role == schema.Tool {
+		return false, nil
+	}
+	mainStreamID := h.nextMainStreamID()
+	mainEmitter := newEinoMainResponseStreamEmitter(
+		h.conversationID, h.orchMode, agentName, mainStreamID, h.mainIteration(agentName), h.progress, h.snapshotMCPIDs,
+	)
+	reasoningEmitter := newEinoReasoningStreamEmitter(
+		h.conversationID,
+		h.orchMode,
+		agentName,
+		h.einoRoleTag(agentName),
+		h.progress,
+		h.nextReasoningStreamID,
+	)
+	var toolStreamFragments []schema.ToolCall
+	var streamUsage *schema.TokenUsage
+	subReplyEmitter := newEinoSubAgentReplyEmitter(
+		h.conversationID,
+		agentName,
+		h.progress,
+		h.nextSubAgentReplyStreamID,
+	)
+	mainAssistantStream := newEinoMainAssistantStreamHandler(einoMainAssistantStreamHandlerConfig{
+		AgentName:        agentName,
+		Emitter:          mainEmitter,
+		StdoutSuppressor: h.stdoutSuppressor,
+		AssistantOutput:  h.assistantOutput,
+		RunMessages:      h.runMessages,
+	})
+	recvErr = recvEinoSchemaMessageStreamWithContext(h.ctx, mv.MessageStream, 8, func(chunk *schema.Message) {
+		reasoningEmitter.EmitDelta(chunk.ReasoningContent)
+		if chunk.Content != "" {
+			if h.streamsMainAssistant(agentName) {
+				mainAssistantStream.EmitDelta(chunk.Content)
+			} else if !h.streamsMainAssistant(agentName) {
+				subReplyEmitter.EmitDelta(chunk.Content)
+			}
+		}
+		if len(chunk.ToolCalls) > 0 {
+			toolStreamFragments = append(toolStreamFragments, chunk.ToolCalls...)
+		}
+		if chunk.ResponseMeta != nil && chunk.ResponseMeta.Usage != nil {
+			streamUsage = maxEinoTokenUsage(streamUsage, chunk.ResponseMeta.Usage)
+		}
+	})
+	if recvErr != nil && !errors.Is(recvErr, context.Canceled) && h.logger != nil {
+		h.logger.Warn("eino stream recv error, flushing incomplete stream",
+			zap.Error(recvErr),
+			zap.String("agent", agentName),
+			zap.Int("toolFragments", len(toolStreamFragments)))
+	}
+	reasoningEmitter.Finish()
+	if h.streamsMainAssistant(agentName) {
+		mainAssistantStream.Finish()
+	}
+	subReplyEmitter.Finish()
+	if h.toolCallCompletion != nil {
+		h.toolCallCompletion.Complete(toolStreamFragments, agentName)
+	}
+	if h.usage != nil {
+		h.usage.AddUsage(streamUsage)
+	}
+	return true, recvErr
+}
+
+func (h *einoAssistantStreamEventHandler) mainIteration(agentName string) int {
+	if h == nil || h.runProgress == nil {
+		return 0
+	}
+	return h.runProgress.MainIteration(agentName)
+}

internal/multiagent/eino_assistant_stream_event_handler_test.go

@@ -0,0 +1,148 @@
+package multiagent
+
+import (
+	"testing"
+
+	"github.com/cloudwego/eino/adk"
+	"github.com/cloudwego/eino/schema"
+)
+
+func TestEinoAssistantStreamEventHandlerHandlesMainAssistantStream(t *testing.T) {
+	var events []string
+	runMessages := newEinoRunMessageAccumulator(nil)
+	assistantOutput := newEinoAssistantOutputAccumulator("deep")
+	usage := newEinoRunUsageAccumulator()
+	handler := newEinoAssistantStreamEventHandler(einoAssistantStreamEventHandlerConfig{
+		ConversationID:       "conv-1",
+		OrchMode:             "deep",
+		RunMessages:          runMessages,
+		Usage:                usage,
+		AssistantOutput:      assistantOutput,
+		StreamsMainAssistant: func(agent string) bool { return agent == "lead" },
+		EinoRoleTag:          func(string) string { return "orchestrator" },
+		NextMainStreamID:     func() string { return "main-stream-1" },
+		Progress: func(eventType, _ string, _ interface{}) {
+			events = append(events, eventType)
+		},
+	})
+	mv := &adk.MessageVariant{
+		IsStreaming: true,
+		Role:        schema.Assistant,
+		MessageStream: schema.StreamReaderFromArray([]*schema.Message{
+			{Role: schema.Assistant, Content: "he", ResponseMeta: &schema.ResponseMeta{Usage: &schema.TokenUsage{PromptTokens: 10, CompletionTokens: 1, TotalTokens: 11}}},
+			{Role: schema.Assistant, Content: "hello", ResponseMeta: &schema.ResponseMeta{Usage: &schema.TokenUsage{PromptTokens: 10, CompletionTokens: 5, TotalTokens: 15}}},
+		}),
+	}
+
+	handled, err := handler.Handle(mv, "lead")
+	if !handled || err != nil {
+		t.Fatalf("handled=%v err=%v", handled, err)
+	}
+	if assistantOutput.LastAssistant() != "hello" {
+		t.Fatalf("last assistant = %q", assistantOutput.LastAssistant())
+	}
+	if msgs := runMessages.Messages(); len(msgs) != 1 || msgs[0].Content != "hello" {
+		t.Fatalf("run messages = %#v", msgs)
+	}
+	if got := usage.Summary(); got.ModelCalls != 1 || got.PromptTokens != 10 || got.CompletionTokens != 5 || got.TotalTokens != 15 {
+		t.Fatalf("usage = %#v, want one stream model call", got)
+	}
+	if !containsString(events, "response_start") || !containsString(events, "response_delta") {
+		t.Fatalf("events = %#v, want response stream events", events)
+	}
+}
+
+func TestEinoAssistantStreamEventHandlerHandlesSubAgentStream(t *testing.T) {
+	var events []string
+	runMessages := newEinoRunMessageAccumulator(nil)
+	assistantOutput := newEinoAssistantOutputAccumulator("deep")
+	handler := newEinoAssistantStreamEventHandler(einoAssistantStreamEventHandlerConfig{
+		ConversationID:       "conv-1",
+		OrchMode:             "deep",
+		RunMessages:          runMessages,
+		AssistantOutput:      assistantOutput,
+		StreamsMainAssistant: func(agent string) bool { return agent == "lead" },
+		EinoRoleTag:          func(string) string { return "sub" },
+		NextSubAgentReplyStreamID: func() string {
+			return "sub-stream-1"
+		},
+		Progress: func(eventType, _ string, _ interface{}) {
+			events = append(events, eventType)
+		},
+	})
+	mv := &adk.MessageVariant{
+		IsStreaming:   true,
+		Role:          schema.Assistant,
+		MessageStream: schema.StreamReaderFromArray([]*schema.Message{{Role: schema.Assistant, Content: "sub reply"}}),
+	}
+
+	handled, err := handler.Handle(mv, "worker")
+	if !handled || err != nil {
+		t.Fatalf("handled=%v err=%v", handled, err)
+	}
+	if len(runMessages.Messages()) != 0 {
+		t.Fatalf("sub stream should not append main run text, got %#v", runMessages.Messages())
+	}
+	if assistantOutput.LastAssistant() != "" {
+		t.Fatalf("sub stream should not record main assistant, got %q", assistantOutput.LastAssistant())
+	}
+	if !containsString(events, "eino_agent_reply_stream_start") ||
+		!containsString(events, "eino_agent_reply_stream_delta") ||
+		!containsString(events, "eino_agent_reply_stream_end") {
+		t.Fatalf("events = %#v, want sub reply stream events", events)
+	}
+}
+
+func TestEinoAssistantStreamEventHandlerCompletesToolFragments(t *testing.T) {
+	idx := 0
+	var events []string
+	runMessages := newEinoRunMessageAccumulator(nil)
+	runProgress := newEinoRunProgressTracker(
+		"deep", "lead", "conv-1",
+		func(eventType, _ string, _ interface{}) { events = append(events, eventType) },
+		func(agent string) bool { return agent == "lead" },
+		nil,
+	)
+	completion := newEinoStreamToolCallCompletionHandler(einoStreamToolCallCompletionHandlerConfig{
+		ConversationID: "conv-1",
+		OrchMode:       "deep",
+		Progress:       func(eventType, _ string, _ interface{}) { events = append(events, eventType) },
+		RunProgress:    runProgress,
+		RunMessages:    runMessages,
+	})
+	handler := newEinoAssistantStreamEventHandler(einoAssistantStreamEventHandlerConfig{
+		ConversationID:       "conv-1",
+		OrchMode:             "deep",
+		RunMessages:          runMessages,
+		StreamsMainAssistant: func(string) bool { return true },
+		ToolCallCompletion:   completion,
+	})
+	mv := &adk.MessageVariant{
+		IsStreaming: true,
+		Role:        schema.Assistant,
+		MessageStream: schema.StreamReaderFromArray([]*schema.Message{
+			{Role: schema.Assistant, ToolCalls: []schema.ToolCall{{ID: "call-1", Index: &idx, Type: "function", Function: schema.FunctionCall{Name: "execute", Arguments: `{"command":`}}}},
+			{Role: schema.Assistant, ToolCalls: []schema.ToolCall{{Index: &idx, Function: schema.FunctionCall{Arguments: `"pwd"}`}}}},
+		}),
+	}
+
+	handled, err := handler.Handle(mv, "lead")
+	if !handled || err != nil {
+		t.Fatalf("handled=%v err=%v", handled, err)
+	}
+	msgs := runMessages.Messages()
+	if len(msgs) != 1 || len(msgs[0].ToolCalls) != 1 || msgs[0].ToolCalls[0].Function.Arguments != `{"command":"pwd"}` {
+		t.Fatalf("run messages = %#v, want merged tool call", msgs)
+	}
+	if !containsString(events, "tool_call") {
+		t.Fatalf("events = %#v, want tool_call", events)
+	}
+}
+
+func TestEinoAssistantStreamEventHandlerIgnoresToolStream(t *testing.T) {
+	handler := newEinoAssistantStreamEventHandler(einoAssistantStreamEventHandlerConfig{})
+	handled, err := handler.Handle(&adk.MessageVariant{IsStreaming: true, Role: schema.Tool, MessageStream: schema.StreamReaderFromArray([]*schema.Message{})}, "lead")
+	if handled || err != nil {
+		t.Fatalf("handled=%v err=%v, want ignored", handled, err)
+	}
+}

internal/multiagent/eino_chat_model_tail_middleware.go

@@ -4,6 +4,7 @@ import (
 	"cyberstrike-ai/internal/config"
 
 	"github.com/cloudwego/eino/adk"
+	"github.com/cloudwego/eino/schema"
 	"go.uber.org/zap"
 )
 
@@ -24,18 +25,19 @@ import (
 //  11. telemetry
 //  12. model-facing trace snapshot
 type einoChatModelTailConfig struct {
-	logger           *zap.Logger
-	phase            string
-	summarization    adk.ChatModelAgentMiddleware
-	modelName        string
-	maxTotalTokens   int
-	toolMaxBytes     int
-	conversationID   string
-	trace            *modelFacingTraceHolder
-	middlewareConfig *config.MultiAgentEinoMiddlewareConfig
-	skipOrphanPruner bool
-	skipTelemetry    bool
-	skipTrace        bool
+	logger               *zap.Logger
+	phase                string
+	summarization        adk.ChatModelAgentMiddleware
+	agenticSummarization adk.TypedChatModelAgentMiddleware[*schema.AgenticMessage]
+	modelName            string
+	maxTotalTokens       int
+	toolMaxBytes         int
+	conversationID       string
+	trace                *modelFacingTraceHolder
+	middlewareConfig     *config.MultiAgentEinoMiddlewareConfig
+	skipOrphanPruner     bool
+	skipTelemetry        bool
+	skipTrace            bool
 }
 
 func appendEinoChatModelTailMiddlewares(handlers []adk.ChatModelAgentMiddleware, cfg einoChatModelTailConfig) []adk.ChatModelAgentMiddleware {
@@ -65,7 +67,6 @@ func appendEinoChatModelTailMiddlewares(handlers []adk.ChatModelAgentMiddleware,
 			handlers = append(handlers, capMw)
 		}
 	}
-	handlers = append(handlers, newModelOutputGuardMiddleware(cfg.middlewareConfig, cfg.logger, cfg.phase))
 	return handlers
 }
 

internal/multiagent/eino_checkpoint_resume_handler.go

@@ -0,0 +1,71 @@
+package multiagent
+
+import (
+	"context"
+
+	"github.com/cloudwego/eino/adk"
+	"go.uber.org/zap"
+)
+
+type einoCheckpointResumeHandlerConfig struct {
+	Context        context.Context
+	ConversationID string
+	OrchMode       string
+	Progress       func(eventType, message string, data interface{})
+	Logger         *zap.Logger
+	Store          *fileCheckPointStore
+	CheckPointID   string
+	Resume         func(checkPointID string) (*adk.AsyncIterator[*adk.AgentEvent], error)
+}
+
+type einoCheckpointResumeHandler struct {
+	cfg einoCheckpointResumeHandlerConfig
+}
+
+func newEinoCheckpointResumeHandler(cfg einoCheckpointResumeHandlerConfig) *einoCheckpointResumeHandler {
+	if cfg.Context == nil {
+		cfg.Context = context.Background()
+	}
+	return &einoCheckpointResumeHandler{cfg: cfg}
+}
+
+func (h *einoCheckpointResumeHandler) TryResume() *adk.AsyncIterator[*adk.AgentEvent] {
+	if h == nil || h.cfg.Store == nil || h.cfg.CheckPointID == "" || h.cfg.Resume == nil {
+		return nil
+	}
+	if _, existed, err := h.cfg.Store.Get(h.cfg.Context, h.cfg.CheckPointID); err != nil {
+		if h.cfg.Logger != nil {
+			h.cfg.Logger.Warn("eino checkpoint preflight get failed", zap.String("checkPointID", h.cfg.CheckPointID), zap.Error(err))
+		}
+		return nil
+	} else if !existed {
+		return nil
+	}
+	h.emitProgress("检测到断点，正在从中断节点恢复执行...")
+	if h.cfg.Logger != nil {
+		h.cfg.Logger.Info("eino runner: resume from checkpoint", zap.String("checkPointID", h.cfg.CheckPointID))
+	}
+	iter, err := h.cfg.Resume(h.cfg.CheckPointID)
+	if err == nil {
+		return iter
+	}
+	if h.cfg.Logger != nil {
+		h.cfg.Logger.Warn("eino runner: resume failed, fallback to fresh run",
+			zap.String("checkPointID", h.cfg.CheckPointID),
+			zap.Error(err))
+	}
+	h.emitProgress("断点恢复失败，已回退为全新执行。")
+	return nil
+}
+
+func (h *einoCheckpointResumeHandler) emitProgress(message string) {
+	if h == nil || h.cfg.Progress == nil {
+		return
+	}
+	h.cfg.Progress("progress", message, map[string]interface{}{
+		"conversationId": h.cfg.ConversationID,
+		"source":         "eino",
+		"orchestration":  h.cfg.OrchMode,
+		"checkPointID":   h.cfg.CheckPointID,
+	})
+}

internal/multiagent/eino_checkpoint_resume_handler_test.go

@@ -0,0 +1,138 @@
+package multiagent
+
+import (
+	"context"
+	"errors"
+	"testing"
+
+	"github.com/cloudwego/eino/adk"
+	"go.uber.org/zap"
+	"go.uber.org/zap/zaptest/observer"
+)
+
+func TestEinoCheckpointResumeHandlerSkipsWithoutCheckpoint(t *testing.T) {
+	called := false
+	handler := newEinoCheckpointResumeHandler(einoCheckpointResumeHandlerConfig{
+		Resume: func(string) (*adk.AsyncIterator[*adk.AgentEvent], error) {
+			called = true
+			return nil, nil
+		},
+	})
+	if iter := handler.TryResume(); iter != nil {
+		t.Fatalf("iter = %#v, want nil", iter)
+	}
+	if called {
+		t.Fatal("resume should not be called without checkpoint state")
+	}
+}
+
+func TestEinoCheckpointResumeHandlerResumesExistingCheckpoint(t *testing.T) {
+	store, err := newFileCheckPointStore(t.TempDir())
+	if err != nil {
+		t.Fatal(err)
+	}
+	if err := store.Set(context.Background(), "cp-1", []byte("checkpoint")); err != nil {
+		t.Fatal(err)
+	}
+	var progressMessages []string
+	var resumedID string
+	core, logs := observer.New(zap.InfoLevel)
+	wantIter, gen := adk.NewAsyncIteratorPair[*adk.AgentEvent]()
+	defer gen.Close()
+	handler := newEinoCheckpointResumeHandler(einoCheckpointResumeHandlerConfig{
+		Context:        context.Background(),
+		ConversationID: "conv-1",
+		OrchMode:       "deep",
+		Store:          store,
+		CheckPointID:   "cp-1",
+		Logger:         zap.New(core),
+		Progress: func(eventType, message string, data interface{}) {
+			if eventType != "progress" {
+				return
+			}
+			progressMessages = append(progressMessages, message)
+			m, _ := data.(map[string]interface{})
+			if m["conversationId"] != "conv-1" || m["orchestration"] != "deep" || m["checkPointID"] != "cp-1" {
+				t.Fatalf("progress data = %#v", m)
+			}
+		},
+		Resume: func(checkPointID string) (*adk.AsyncIterator[*adk.AgentEvent], error) {
+			resumedID = checkPointID
+			return wantIter, nil
+		},
+	})
+
+	got := handler.TryResume()
+	if got != wantIter {
+		t.Fatalf("iter = %#v, want resume iterator", got)
+	}
+	if resumedID != "cp-1" {
+		t.Fatalf("resumed id = %q", resumedID)
+	}
+	if len(progressMessages) != 1 || progressMessages[0] != "检测到断点，正在从中断节点恢复执行..." {
+		t.Fatalf("progress messages = %#v", progressMessages)
+	}
+	if logs.FilterMessage("eino runner: resume from checkpoint").Len() != 1 {
+		t.Fatalf("expected resume log, got %d", logs.Len())
+	}
+}
+
+func TestEinoCheckpointResumeHandlerFallsBackOnResumeError(t *testing.T) {
+	store, err := newFileCheckPointStore(t.TempDir())
+	if err != nil {
+		t.Fatal(err)
+	}
+	if err := store.Set(context.Background(), "cp-1", []byte("checkpoint")); err != nil {
+		t.Fatal(err)
+	}
+	var progressMessages []string
+	core, logs := observer.New(zap.WarnLevel)
+	handler := newEinoCheckpointResumeHandler(einoCheckpointResumeHandlerConfig{
+		Context:      context.Background(),
+		Store:        store,
+		CheckPointID: "cp-1",
+		Logger:       zap.New(core),
+		Progress: func(eventType, message string, _ interface{}) {
+			if eventType == "progress" {
+				progressMessages = append(progressMessages, message)
+			}
+		},
+		Resume: func(string) (*adk.AsyncIterator[*adk.AgentEvent], error) {
+			return nil, errors.New("resume failed")
+		},
+	})
+
+	if iter := handler.TryResume(); iter != nil {
+		t.Fatalf("iter = %#v, want nil fallback", iter)
+	}
+	if len(progressMessages) != 2 || progressMessages[1] != "断点恢复失败，已回退为全新执行。" {
+		t.Fatalf("progress messages = %#v", progressMessages)
+	}
+	if logs.FilterMessage("eino runner: resume failed, fallback to fresh run").Len() != 1 {
+		t.Fatalf("expected fallback log, got %d", logs.Len())
+	}
+}
+
+func TestEinoCheckpointResumeHandlerLogsPreflightError(t *testing.T) {
+	store, err := newFileCheckPointStore(t.TempDir())
+	if err != nil {
+		t.Fatal(err)
+	}
+	core, logs := observer.New(zap.WarnLevel)
+	handler := newEinoCheckpointResumeHandler(einoCheckpointResumeHandlerConfig{
+		Context:      context.Background(),
+		Store:        store,
+		CheckPointID: "bad/id",
+		Logger:       zap.New(core),
+		Resume: func(string) (*adk.AsyncIterator[*adk.AgentEvent], error) {
+			t.Fatal("resume should not be called after preflight error")
+			return nil, nil
+		},
+	})
+	if iter := handler.TryResume(); iter != nil {
+		t.Fatalf("iter = %#v, want nil", iter)
+	}
+	if logs.FilterMessage("eino checkpoint preflight get failed").Len() != 1 {
+		t.Fatalf("expected preflight warning, got %d", logs.Len())
+	}
+}

internal/multiagent/eino_checkpoint_runtime.go

@@ -0,0 +1,38 @@
+package multiagent
+
+import (
+	"path/filepath"
+	"strings"
+
+	"go.uber.org/zap"
+)
+
+type einoCheckpointRuntime struct {
+	Store        *fileCheckPointStore
+	CheckPointID string
+}
+
+func newEinoCheckpointRuntime(checkpointDir, conversationID, orchMode string, logger *zap.Logger) *einoCheckpointRuntime {
+	checkpointDir = strings.TrimSpace(checkpointDir)
+	if checkpointDir == "" {
+		return nil
+	}
+	cpDir := filepath.Join(checkpointDir, sanitizeEinoPathSegment(conversationID))
+	store, err := newFileCheckPointStore(cpDir)
+	if err != nil {
+		if logger != nil {
+			logger.Warn("eino checkpoint store disabled", zap.String("dir", cpDir), zap.Error(err))
+		}
+		return nil
+	}
+	checkPointID := buildEinoCheckpointID(orchMode)
+	if logger != nil {
+		logger.Info("eino runner: checkpoint store enabled",
+			zap.String("dir", cpDir),
+			zap.String("checkPointID", checkPointID))
+	}
+	return &einoCheckpointRuntime{
+		Store:        store,
+		CheckPointID: checkPointID,
+	}
+}

internal/multiagent/eino_checkpoint_runtime_test.go

@@ -0,0 +1,48 @@
+package multiagent
+
+import (
+	"os"
+	"strings"
+	"testing"
+
+	"go.uber.org/zap"
+	"go.uber.org/zap/zaptest/observer"
+)
+
+func TestNewEinoCheckpointRuntimeDisabledWithoutDir(t *testing.T) {
+	if got := newEinoCheckpointRuntime(" ", "conv-1", "deep", nil); got != nil {
+		t.Fatalf("runtime = %#v, want nil", got)
+	}
+}
+
+func TestNewEinoCheckpointRuntimeCreatesStore(t *testing.T) {
+	core, logs := observer.New(zap.InfoLevel)
+	runtime := newEinoCheckpointRuntime(t.TempDir(), "conv/1", "deep", zap.New(core))
+	if runtime == nil || runtime.Store == nil {
+		t.Fatal("expected checkpoint runtime with store")
+	}
+	if runtime.CheckPointID != buildEinoCheckpointID("deep") {
+		t.Fatalf("checkpoint id = %q", runtime.CheckPointID)
+	}
+	if !strings.Contains(runtime.Store.dir, sanitizeEinoPathSegment("conv/1")) {
+		t.Fatalf("store dir = %q, want sanitized conversation segment", runtime.Store.dir)
+	}
+	if logs.FilterMessage("eino runner: checkpoint store enabled").Len() != 1 {
+		t.Fatalf("expected enabled log, got %d", logs.Len())
+	}
+}
+
+func TestNewEinoCheckpointRuntimeLogsCreateFailure(t *testing.T) {
+	filePath := t.TempDir() + "/not-a-dir"
+	if err := os.WriteFile(filePath, []byte("x"), 0o600); err != nil {
+		t.Fatal(err)
+	}
+	core, logs := observer.New(zap.WarnLevel)
+	runtime := newEinoCheckpointRuntime(filePath, "conv-1", "deep", zap.New(core))
+	if runtime != nil {
+		t.Fatalf("runtime = %#v, want nil", runtime)
+	}
+	if logs.FilterMessage("eino checkpoint store disabled").Len() != 1 {
+		t.Fatalf("expected disabled log, got %d", logs.Len())
+	}
+}

internal/multiagent/eino_context_overflow_retry.go

@@ -0,0 +1,90 @@
+package multiagent
+
+import (
+	"context"
+
+	"github.com/cloudwego/eino/adk"
+	"go.uber.org/zap"
+)
+
+type einoContextOverflowRetryConfig struct {
+	Context        context.Context
+	ConversationID string
+	OrchMode       string
+	Args           *einoADKRunLoopArgs
+	BaseMsgs       []adk.Message
+	Progress       func(eventType, message string, data interface{})
+	Logger         *zap.Logger
+}
+
+type einoContextOverflowRetryResult struct {
+	Handled     bool
+	RestartMsgs []adk.Message
+	ContextSrc  einoRunRestartContextSource
+}
+
+type einoContextOverflowRetryHandler struct {
+	cfg     einoContextOverflowRetryConfig
+	retried bool
+}
+
+func newEinoContextOverflowRetryHandler(cfg einoContextOverflowRetryConfig) *einoContextOverflowRetryHandler {
+	if cfg.Context == nil {
+		cfg.Context = context.Background()
+	}
+	if cfg.Args == nil {
+		cfg.Args = &einoADKRunLoopArgs{}
+	}
+	return &einoContextOverflowRetryHandler{cfg: cfg}
+}
+
+func (h *einoContextOverflowRetryHandler) Prepare(
+	runErr error,
+	accumulated []adk.Message,
+	baseCount int,
+) einoContextOverflowRetryResult {
+	if h == nil || !isEinoContextOverflowError(runErr) || h.retried {
+		return einoContextOverflowRetryResult{}
+	}
+	h.retried = true
+	restartMsgs, ctxSource := einoMessagesForRunRestart(h.cfg.Args, h.cfg.BaseMsgs, accumulated, baseCount)
+	restartMsgs = aggressiveCompactMessagesForOverflow(
+		h.cfg.Context,
+		restartMsgs,
+		h.cfg.Args.MaxTotalTokens,
+		h.cfg.Args.ModelName,
+		h.cfg.Args.ToolMaxBytes,
+		h.cfg.OrchMode,
+		h.cfg.Logger,
+	)
+	if h.cfg.Logger != nil {
+		h.cfg.Logger.Warn("eino context overflow, retrying with aggressive compaction",
+			zap.Error(runErr),
+			zap.String("orchestration", h.cfg.OrchMode),
+			zap.String("contextSource", string(ctxSource)),
+		)
+	}
+	emitEinoContextOverflowRetryProgress(h.cfg.Progress, h.cfg.ConversationID, h.cfg.OrchMode, ctxSource)
+	return einoContextOverflowRetryResult{
+		Handled:     true,
+		RestartMsgs: restartMsgs,
+		ContextSrc:  ctxSource,
+	}
+}
+
+func emitEinoContextOverflowRetryProgress(
+	progress func(eventType, message string, data interface{}),
+	conversationID, orchMode string,
+	ctxSource einoRunRestartContextSource,
+) bool {
+	if progress == nil {
+		return false
+	}
+	progress("eino_context_overflow_retry", "上下文超限，正在激进压缩后重试…", map[string]interface{}{
+		"conversationId": conversationID,
+		"source":         "eino",
+		"orchestration":  orchMode,
+		"contextSource":  string(ctxSource),
+	})
+	return true
+}

internal/multiagent/eino_context_overflow_retry_test.go

@@ -0,0 +1,90 @@
+package multiagent
+
+import (
+	"context"
+	"errors"
+	"testing"
+
+	"github.com/cloudwego/eino/adk"
+	"github.com/cloudwego/eino/schema"
+	"go.uber.org/zap"
+	"go.uber.org/zap/zaptest/observer"
+)
+
+func TestEinoContextOverflowRetryHandlerPreparesOnce(t *testing.T) {
+	baseMsgs := []adk.Message{
+		schema.UserMessage("base"),
+	}
+	accumulated := []adk.Message{
+		schema.UserMessage("base"),
+		schema.AssistantMessage("partial", nil),
+	}
+	var gotType, gotMessage string
+	var gotData map[string]interface{}
+	core, logs := observer.New(zap.WarnLevel)
+	handler := newEinoContextOverflowRetryHandler(einoContextOverflowRetryConfig{
+		Context:        context.Background(),
+		ConversationID: "conv-1",
+		OrchMode:       "deep_agent",
+		Args:           &einoADKRunLoopArgs{},
+		BaseMsgs:       baseMsgs,
+		Progress: func(eventType, message string, data interface{}) {
+			gotType = eventType
+			gotMessage = message
+			var ok bool
+			gotData, ok = data.(map[string]interface{})
+			if !ok {
+				t.Fatalf("progress data type = %T, want map[string]interface{}", data)
+			}
+		},
+		Logger: zap.New(core),
+	})
+
+	result := handler.Prepare(errors.New("context length exceeded"), accumulated, len(baseMsgs))
+	if !result.Handled {
+		t.Fatal("handled = false, want true")
+	}
+	if result.ContextSrc != einoRestartContextAccumulated {
+		t.Fatalf("context source = %q, want %q", result.ContextSrc, einoRestartContextAccumulated)
+	}
+	if len(result.RestartMsgs) != len(accumulated) {
+		t.Fatalf("restart message count = %d, want %d", len(result.RestartMsgs), len(accumulated))
+	}
+	if gotType != "eino_context_overflow_retry" {
+		t.Fatalf("event type = %q, want eino_context_overflow_retry", gotType)
+	}
+	if gotMessage != "上下文超限，正在激进压缩后重试…" {
+		t.Fatalf("message = %q", gotMessage)
+	}
+	assertContextOverflowMapValue(t, gotData, "conversationId", "conv-1")
+	assertContextOverflowMapValue(t, gotData, "source", "eino")
+	assertContextOverflowMapValue(t, gotData, "orchestration", "deep_agent")
+	assertContextOverflowMapValue(t, gotData, "contextSource", string(einoRestartContextAccumulated))
+	if logs.FilterMessage("eino context overflow, retrying with aggressive compaction").Len() != 1 {
+		t.Fatalf("expected one context overflow retry log, got %d", logs.Len())
+	}
+
+	second := handler.Prepare(errors.New("maximum context length"), accumulated, len(baseMsgs))
+	if second.Handled {
+		t.Fatalf("second result = %+v, want unhandled after first retry", second)
+	}
+}
+
+func TestEinoContextOverflowRetryHandlerIgnoresOtherErrors(t *testing.T) {
+	handler := newEinoContextOverflowRetryHandler(einoContextOverflowRetryConfig{
+		Context:  context.Background(),
+		Args:     &einoADKRunLoopArgs{},
+		BaseMsgs: []adk.Message{schema.UserMessage("base")},
+	})
+	result := handler.Prepare(errors.New("HTTP 429 Too Many Requests"), nil, 0)
+	if result.Handled {
+		t.Fatalf("result = %+v, want unhandled", result)
+	}
+}
+
+func assertContextOverflowMapValue(t *testing.T, data map[string]interface{}, key string, want interface{}) {
+	t.Helper()
+	if got := data[key]; got != want {
+		t.Fatalf("%s = %v, want %v", key, got, want)
+	}
+}

internal/multiagent/eino_execute_stdout_suppressor.go

@@ -0,0 +1,57 @@
+package multiagent
+
+import (
+	"strings"
+	"sync"
+)
+
+type einoExecuteStdoutSuppressor struct {
+	mu      sync.Mutex
+	pending string
+}
+
+func newEinoExecuteStdoutSuppressor() *einoExecuteStdoutSuppressor {
+	return &einoExecuteStdoutSuppressor{}
+}
+
+func (s *einoExecuteStdoutSuppressor) Record(toolName, stdout string, isErr bool) {
+	if s == nil || isErr || !strings.EqualFold(strings.TrimSpace(toolName), "execute") {
+		return
+	}
+	t := strings.TrimSpace(stdout)
+	if t == "" {
+		return
+	}
+	s.mu.Lock()
+	s.pending = t
+	s.mu.Unlock()
+}
+
+func (s *einoExecuteStdoutSuppressor) Peek() string {
+	if s == nil {
+		return ""
+	}
+	s.mu.Lock()
+	defer s.mu.Unlock()
+	return s.pending
+}
+
+func (s *einoExecuteStdoutSuppressor) Consume() string {
+	if s == nil {
+		return ""
+	}
+	s.mu.Lock()
+	defer s.mu.Unlock()
+	out := s.pending
+	s.pending = ""
+	return out
+}
+
+func (s *einoExecuteStdoutSuppressor) Clear() {
+	if s == nil {
+		return
+	}
+	s.mu.Lock()
+	s.pending = ""
+	s.mu.Unlock()
+}

internal/multiagent/eino_execute_stdout_suppressor_test.go

@@ -0,0 +1,42 @@
+package multiagent
+
+import "testing"
+
+func TestEinoExecuteStdoutSuppressorRecordsOnlySuccessfulExecute(t *testing.T) {
+	s := newEinoExecuteStdoutSuppressor()
+	s.Record("read_file", "file body", false)
+	if got := s.Peek(); got != "" {
+		t.Fatalf("non-execute should not be recorded, got %q", got)
+	}
+	s.Record("execute", "failed", true)
+	if got := s.Peek(); got != "" {
+		t.Fatalf("failed execute should not be recorded, got %q", got)
+	}
+	s.Record(" execute ", "  hello\n", false)
+	if got := s.Peek(); got != "hello" {
+		t.Fatalf("Peek = %q, want hello", got)
+	}
+}
+
+func TestEinoExecuteStdoutSuppressorConsumeAndClear(t *testing.T) {
+	s := newEinoExecuteStdoutSuppressor()
+	s.Record("execute", "stdout", false)
+	if got := s.Peek(); got != "stdout" {
+		t.Fatalf("Peek = %q, want stdout", got)
+	}
+	if got := s.Peek(); got != "stdout" {
+		t.Fatalf("Peek should not clear, got %q", got)
+	}
+	if got := s.Consume(); got != "stdout" {
+		t.Fatalf("Consume = %q, want stdout", got)
+	}
+	if got := s.Peek(); got != "" {
+		t.Fatalf("Consume should clear, got %q", got)
+	}
+
+	s.Record("execute", "again", false)
+	s.Clear()
+	if got := s.Consume(); got != "" {
+		t.Fatalf("Clear should remove pending value, got %q", got)
+	}
+}

internal/multiagent/eino_filesystem_tool_monitor_test.go

@@ -0,0 +1,82 @@
+package multiagent
+
+import (
+	"context"
+	"testing"
+
+	"cyberstrike-ai/internal/agent"
+	"cyberstrike-ai/internal/config"
+	"cyberstrike-ai/internal/einomcp"
+	"cyberstrike-ai/internal/mcp"
+
+	"github.com/cloudwego/eino/adk"
+	"github.com/cloudwego/eino/schema"
+	"go.uber.org/zap"
+)
+
+func TestEinoADKFilesystemToolMonitorBindsFinishesAndUpdatesDisplayResult(t *testing.T) {
+	t.Parallel()
+	ctx := context.Background()
+	logger := zap.NewNop()
+	server := mcp.NewServer(logger)
+	ag := agent.NewAgent(&config.OpenAIConfig{}, &config.AgentConfig{}, server, nil, logger, 1)
+	binder := NewMCPExecutionBinder()
+	var recorded []string
+	rec := einomcp.ExecutionRecorder(func(executionID, toolCallID string) {
+		recorded = append(recorded, executionID+"|"+toolCallID)
+	})
+
+	beginEinoADKFilesystemToolMonitor(ctx, ag, rec, binder, "call-read", "read_file")
+	execID := binder.ExecutionID("call-read")
+	if execID == "" {
+		t.Fatal("expected begin to bind execution id")
+	}
+	exec, ok := server.GetExecution(execID)
+	if !ok || exec == nil || exec.Status != "running" || exec.ToolName != "eino_fs::read_file" {
+		t.Fatalf("begin execution = %#v ok=%v", exec, ok)
+	}
+	if len(recorded) != 1 || recorded[0] != execID+"|call-read" {
+		t.Fatalf("recorded begin ids = %#v", recorded)
+	}
+
+	runMessages := newEinoRunMessageAccumulator([]adk.Message{
+		&schema.Message{
+			Role: schema.Assistant,
+			ToolCalls: []schema.ToolCall{{
+				ID:   "call-read",
+				Type: "function",
+				Function: schema.FunctionCall{
+					Name:      "read_file",
+					Arguments: `{"path":"/tmp/secret.txt"}`,
+				},
+			}},
+		},
+	})
+	emitter := newEinoToolResultProgressEmitter(einoToolResultProgressEmitterConfig{
+		ConversationID:          "conv-1",
+		RunMessages:             runMessages,
+		FilesystemMonitorAgent:  ag,
+		FilesystemMonitorRecord: rec,
+		MCPExecutionBinder:      binder,
+	})
+
+	if !emitter.Emit(ctx, "read_file", "model-facing truncated body", "call-read", false, "lead") {
+		t.Fatal("expected tool_result emit")
+	}
+	exec, ok = server.GetExecution(execID)
+	if !ok || exec == nil {
+		t.Fatalf("finished execution missing: ok=%v exec=%#v", ok, exec)
+	}
+	if exec.Status != "completed" || exec.ToolName != "eino_fs::read_file" {
+		t.Fatalf("finished execution status/name = %#v", exec)
+	}
+	if got, _ := exec.Arguments["path"].(string); got != "/tmp/secret.txt" {
+		t.Fatalf("execution args = %#v", exec.Arguments)
+	}
+	if exec.Result == nil || len(exec.Result.Content) != 1 || exec.Result.Content[0].Text != "model-facing truncated body" {
+		t.Fatalf("execution display result = %#v", exec.Result)
+	}
+	if len(recorded) != 1 {
+		t.Fatalf("finish should reuse existing execution without recording a second id, got %#v", recorded)
+	}
+}

internal/multiagent/eino_initial_iterator_start_handler.go

@@ -0,0 +1,54 @@
+package multiagent
+
+import "github.com/cloudwego/eino/adk"
+
+type einoAgentEventIteratorStarter func([]adk.Message) *adk.AsyncIterator[*adk.AgentEvent]
+
+type einoInitialIteratorStartHandlerConfig struct {
+	ConversationID string
+	OrchMode       string
+	Progress       func(eventType, message string, data interface{})
+	UseTurnLoop    bool
+	StartRunner    einoAgentEventIteratorStarter
+	StartTurnLoop  einoAgentEventIteratorStarter
+}
+
+type einoInitialIteratorStartHandler struct {
+	cfg einoInitialIteratorStartHandlerConfig
+}
+
+func newEinoInitialIteratorStartHandler(cfg einoInitialIteratorStartHandlerConfig) *einoInitialIteratorStartHandler {
+	return &einoInitialIteratorStartHandler{cfg: cfg}
+}
+
+func (h *einoInitialIteratorStartHandler) StartIfNeeded(existing *adk.AsyncIterator[*adk.AgentEvent], msgs []adk.Message) *adk.AsyncIterator[*adk.AgentEvent] {
+	if existing != nil {
+		return existing
+	}
+	if h == nil {
+		return nil
+	}
+	if h.cfg.UseTurnLoop {
+		h.emitTurnLoopTakeover()
+		if h.cfg.StartTurnLoop == nil {
+			return nil
+		}
+		return h.cfg.StartTurnLoop(msgs)
+	}
+	if h.cfg.StartRunner == nil {
+		return nil
+	}
+	return h.cfg.StartRunner(msgs)
+}
+
+func (h *einoInitialIteratorStartHandler) emitTurnLoopTakeover() {
+	if h == nil || h.cfg.Progress == nil {
+		return
+	}
+	h.cfg.Progress("progress", "Eino TurnLoop 常驻多轮 runtime 已接管本轮会话。", map[string]interface{}{
+		"conversationId": h.cfg.ConversationID,
+		"source":         "eino",
+		"orchestration":  h.cfg.OrchMode,
+		"kind":           "turn_loop_takeover",
+	})
+}

internal/multiagent/eino_initial_iterator_start_handler_test.go

@@ -0,0 +1,111 @@
+package multiagent
+
+import (
+	"testing"
+
+	"github.com/cloudwego/eino/adk"
+)
+
+func TestEinoInitialIteratorStartHandlerKeepsExistingIterator(t *testing.T) {
+	existing, gen := adk.NewAsyncIteratorPair[*adk.AgentEvent]()
+	defer gen.Close()
+
+	var started bool
+	got := newEinoInitialIteratorStartHandler(einoInitialIteratorStartHandlerConfig{
+		UseTurnLoop: true,
+		StartTurnLoop: func([]adk.Message) *adk.AsyncIterator[*adk.AgentEvent] {
+			started = true
+			iter, iterGen := adk.NewAsyncIteratorPair[*adk.AgentEvent]()
+			iterGen.Close()
+			return iter
+		},
+		Progress: func(string, string, interface{}) {
+			t.Fatal("progress should not be emitted when an iterator already exists")
+		},
+	}).StartIfNeeded(existing, nil)
+
+	if got != existing {
+		t.Fatal("existing iterator should be preserved")
+	}
+	if started {
+		t.Fatal("start function should not be called when an iterator already exists")
+	}
+}
+
+func TestEinoInitialIteratorStartHandlerStartsRunner(t *testing.T) {
+	wantIter, gen := adk.NewAsyncIteratorPair[*adk.AgentEvent]()
+	defer gen.Close()
+
+	var runnerStarted bool
+	got := newEinoInitialIteratorStartHandler(einoInitialIteratorStartHandlerConfig{
+		StartRunner: func(msgs []adk.Message) *adk.AsyncIterator[*adk.AgentEvent] {
+			runnerStarted = true
+			if msgs == nil {
+				t.Fatal("msgs should be forwarded")
+			}
+			return wantIter
+		},
+		StartTurnLoop: func([]adk.Message) *adk.AsyncIterator[*adk.AgentEvent] {
+			t.Fatal("turn loop should not start when UseTurnLoop is false")
+			return nil
+		},
+		Progress: func(string, string, interface{}) {
+			t.Fatal("runner start should not emit TurnLoop takeover progress")
+		},
+	}).StartIfNeeded(nil, []adk.Message{})
+
+	if !runnerStarted {
+		t.Fatal("runner start was not called")
+	}
+	if got != wantIter {
+		t.Fatal("runner iterator should be returned")
+	}
+}
+
+func TestEinoInitialIteratorStartHandlerStartsTurnLoopWithTakeoverProgress(t *testing.T) {
+	wantIter, gen := adk.NewAsyncIteratorPair[*adk.AgentEvent]()
+	defer gen.Close()
+
+	var turnLoopStarted bool
+	var gotType, gotMessage string
+	var gotData map[string]interface{}
+	got := newEinoInitialIteratorStartHandler(einoInitialIteratorStartHandlerConfig{
+		ConversationID: "conv-1",
+		OrchMode:       "deep",
+		UseTurnLoop:    true,
+		StartRunner: func([]adk.Message) *adk.AsyncIterator[*adk.AgentEvent] {
+			t.Fatal("runner should not start when UseTurnLoop is true")
+			return nil
+		},
+		StartTurnLoop: func(msgs []adk.Message) *adk.AsyncIterator[*adk.AgentEvent] {
+			turnLoopStarted = true
+			if msgs == nil {
+				t.Fatal("msgs should be forwarded")
+			}
+			return wantIter
+		},
+		Progress: func(eventType, message string, data interface{}) {
+			gotType = eventType
+			gotMessage = message
+			if m, ok := data.(map[string]interface{}); ok {
+				gotData = m
+			}
+		},
+	}).StartIfNeeded(nil, []adk.Message{})
+
+	if !turnLoopStarted {
+		t.Fatal("turn loop start was not called")
+	}
+	if got != wantIter {
+		t.Fatal("turn loop iterator should be returned")
+	}
+	if gotType != "progress" {
+		t.Fatalf("progress type = %q, want progress", gotType)
+	}
+	if gotMessage != "Eino TurnLoop 常驻多轮 runtime 已接管本轮会话。" {
+		t.Fatalf("progress message = %q", gotMessage)
+	}
+	if gotData["conversationId"] != "conv-1" || gotData["source"] != "eino" || gotData["orchestration"] != "deep" {
+		t.Fatalf("progress data = %#v", gotData)
+	}
+}

internal/multiagent/eino_main_assistant_complete_handler.go

@@ -0,0 +1,49 @@
+package multiagent
+
+import "strings"
+
+type einoMainAssistantCompleteHandler struct {
+	agentName        string
+	emitter          *einoMainResponseStreamEmitter
+	stdoutSuppressor *einoExecuteStdoutSuppressor
+	assistantOutput  *einoAssistantOutputAccumulator
+}
+
+type einoMainAssistantCompleteHandlerConfig struct {
+	AgentName        string
+	Emitter          *einoMainResponseStreamEmitter
+	StdoutSuppressor *einoExecuteStdoutSuppressor
+	AssistantOutput  *einoAssistantOutputAccumulator
+}
+
+func newEinoMainAssistantCompleteHandler(cfg einoMainAssistantCompleteHandlerConfig) *einoMainAssistantCompleteHandler {
+	return &einoMainAssistantCompleteHandler{
+		agentName:        cfg.AgentName,
+		emitter:          cfg.Emitter,
+		stdoutSuppressor: cfg.StdoutSuppressor,
+		assistantOutput:  cfg.AssistantOutput,
+	}
+}
+
+func (h *einoMainAssistantCompleteHandler) EmitComplete(content string) bool {
+	if h == nil {
+		return false
+	}
+	body := strings.TrimSpace(content)
+	if body == "" {
+		return false
+	}
+	if h.stdoutSuppressor != nil {
+		if dup := h.stdoutSuppressor.Consume(); dup != "" && body == dup {
+			if h.assistantOutput != nil {
+				h.assistantOutput.RecordMainAssistant(h.agentName, body)
+			}
+			return false
+		}
+	}
+	emitted := h.emitter.EmitDelta(body, body)
+	if h.assistantOutput != nil {
+		h.assistantOutput.RecordMainAssistant(h.agentName, body)
+	}
+	return emitted
+}

internal/multiagent/eino_main_assistant_complete_handler_test.go

@@ -0,0 +1,76 @@
+package multiagent
+
+import "testing"
+
+func TestEinoMainAssistantCompleteHandlerEmitsAndRecords(t *testing.T) {
+	var eventTypes []string
+	var messages []string
+	progress := func(eventType, message string, _ interface{}) {
+		eventTypes = append(eventTypes, eventType)
+		messages = append(messages, message)
+	}
+	out := newEinoAssistantOutputAccumulator("deep")
+	handler := newEinoMainAssistantCompleteHandler(einoMainAssistantCompleteHandlerConfig{
+		AgentName:       "lead",
+		Emitter:         newEinoMainResponseStreamEmitter("conv-1", "deep", "lead", "stream-1", 2, progress, nil),
+		AssistantOutput: out,
+	})
+
+	if !handler.EmitComplete(" hello ") {
+		t.Fatal("complete assistant should emit")
+	}
+	if len(eventTypes) != 2 || eventTypes[0] != "response_start" || eventTypes[1] != "response_delta" {
+		t.Fatalf("events = %#v", eventTypes)
+	}
+	if messages[1] != "hello" {
+		t.Fatalf("delta message = %q", messages[1])
+	}
+	if out.LastAssistant() != "hello" {
+		t.Fatalf("last assistant = %q", out.LastAssistant())
+	}
+}
+
+func TestEinoMainAssistantCompleteHandlerSuppressesDuplicateExecuteStdout(t *testing.T) {
+	var eventTypes []string
+	progress := func(eventType, _ string, _ interface{}) {
+		eventTypes = append(eventTypes, eventType)
+	}
+	stdoutDup := newEinoExecuteStdoutSuppressor()
+	stdoutDup.Record("execute", "hello", false)
+	out := newEinoAssistantOutputAccumulator("deep")
+	handler := newEinoMainAssistantCompleteHandler(einoMainAssistantCompleteHandlerConfig{
+		AgentName:        "lead",
+		Emitter:          newEinoMainResponseStreamEmitter("conv-1", "deep", "lead", "stream-1", 1, progress, nil),
+		StdoutSuppressor: stdoutDup,
+		AssistantOutput:  out,
+	})
+
+	if handler.EmitComplete("hello") {
+		t.Fatal("duplicate execute stdout should not emit")
+	}
+	if len(eventTypes) != 0 {
+		t.Fatalf("events = %#v, want none", eventTypes)
+	}
+	if out.LastAssistant() != "hello" {
+		t.Fatalf("last assistant = %q", out.LastAssistant())
+	}
+	if stdoutDup.Peek() != "" {
+		t.Fatal("duplicate target should be consumed")
+	}
+}
+
+func TestEinoMainAssistantCompleteHandlerRecordsWithoutProgress(t *testing.T) {
+	out := newEinoAssistantOutputAccumulator("plan_execute")
+	handler := newEinoMainAssistantCompleteHandler(einoMainAssistantCompleteHandlerConfig{
+		AgentName:       "executor",
+		Emitter:         newEinoMainResponseStreamEmitter("conv-1", "plan_execute", "executor", "stream-1", 1, nil, nil),
+		AssistantOutput: out,
+	})
+
+	if handler.EmitComplete(`{"response":"done"}`) {
+		t.Fatal("nil progress should not emit")
+	}
+	if out.LastPlanExecuteExecutor() != "done" {
+		t.Fatalf("executor output = %q", out.LastPlanExecuteExecutor())
+	}
+}

internal/multiagent/eino_main_assistant_stream_handler.go

@@ -0,0 +1,77 @@
+package multiagent
+
+import "strings"
+
+type einoMainAssistantStreamHandler struct {
+	agentName        string
+	emitter          *einoMainResponseStreamEmitter
+	stdoutSuppressor *einoExecuteStdoutSuppressor
+	assistantOutput  *einoAssistantOutputAccumulator
+	runMessages      *einoRunMessageAccumulator
+
+	buf       string
+	dupTarget string
+}
+
+type einoMainAssistantStreamHandlerConfig struct {
+	AgentName        string
+	Emitter          *einoMainResponseStreamEmitter
+	StdoutSuppressor *einoExecuteStdoutSuppressor
+	AssistantOutput  *einoAssistantOutputAccumulator
+	RunMessages      *einoRunMessageAccumulator
+}
+
+func newEinoMainAssistantStreamHandler(cfg einoMainAssistantStreamHandlerConfig) *einoMainAssistantStreamHandler {
+	return &einoMainAssistantStreamHandler{
+		agentName:        cfg.AgentName,
+		emitter:          cfg.Emitter,
+		stdoutSuppressor: cfg.StdoutSuppressor,
+		assistantOutput:  cfg.AssistantOutput,
+		runMessages:      cfg.RunMessages,
+	}
+}
+
+func (h *einoMainAssistantStreamHandler) EmitDelta(content string) bool {
+	if h == nil || content == "" {
+		return false
+	}
+	var delta string
+	h.buf, delta = normalizeStreamingDelta(h.buf, content)
+	if delta == "" {
+		return false
+	}
+	if h.dupTarget == "" && h.stdoutSuppressor != nil {
+		h.dupTarget = h.stdoutSuppressor.Peek()
+	}
+	if h.dupTarget != "" {
+		return false
+	}
+	return h.emitter.EmitDelta(delta, h.buf)
+}
+
+func (h *einoMainAssistantStreamHandler) Finish() string {
+	if h == nil {
+		return ""
+	}
+	body := strings.TrimSpace(h.buf)
+	if body == "" {
+		return ""
+	}
+	if h.dupTarget != "" {
+		if h.stdoutSuppressor != nil {
+			h.stdoutSuppressor.Clear()
+		}
+		if body != h.dupTarget {
+			h.emitter.EmitTailFromFull(h.buf)
+		}
+	} else {
+		h.emitter.EmitTailFromFull(h.buf)
+	}
+	if h.assistantOutput != nil {
+		h.assistantOutput.RecordMainAssistant(h.agentName, body)
+	}
+	if h.runMessages != nil {
+		h.runMessages.AppendAssistantText(body)
+	}
+	return body
+}

internal/multiagent/eino_main_assistant_stream_handler_test.go

@@ -0,0 +1,103 @@
+package multiagent
+
+import "testing"
+
+func TestEinoMainAssistantStreamHandlerEmitsAndRecords(t *testing.T) {
+	var eventTypes []string
+	var messages []string
+	progress := func(eventType, message string, _ interface{}) {
+		eventTypes = append(eventTypes, eventType)
+		messages = append(messages, message)
+	}
+	out := newEinoAssistantOutputAccumulator("deep")
+	runMsgs := newEinoRunMessageAccumulator(nil)
+	emitter := newEinoMainResponseStreamEmitter("conv-1", "deep", "lead", "stream-1", 2, progress, nil)
+	handler := newEinoMainAssistantStreamHandler(einoMainAssistantStreamHandlerConfig{
+		AgentName:       "lead",
+		Emitter:         emitter,
+		AssistantOutput: out,
+		RunMessages:     runMsgs,
+	})
+
+	if !handler.EmitDelta("he") {
+		t.Fatal("first delta should emit")
+	}
+	if !handler.EmitDelta("hello") {
+		t.Fatal("cumulative chunk should emit tail")
+	}
+	if got := handler.Finish(); got != "hello" {
+		t.Fatalf("finish = %q, want hello", got)
+	}
+
+	if len(eventTypes) != 3 || eventTypes[0] != "response_start" || eventTypes[1] != "response_delta" || eventTypes[2] != "response_delta" {
+		t.Fatalf("events = %#v", eventTypes)
+	}
+	if messages[1] != "he" || messages[2] != "llo" {
+		t.Fatalf("delta messages = %#v", messages)
+	}
+	if out.LastAssistant() != "hello" {
+		t.Fatalf("last assistant = %q", out.LastAssistant())
+	}
+	if msgs := runMsgs.Messages(); len(msgs) != 1 || msgs[0].Content != "hello" {
+		t.Fatalf("run messages = %#v", msgs)
+	}
+}
+
+func TestEinoMainAssistantStreamHandlerSuppressesDuplicateExecuteStdout(t *testing.T) {
+	var eventTypes []string
+	progress := func(eventType, _ string, _ interface{}) {
+		eventTypes = append(eventTypes, eventType)
+	}
+	stdoutDup := newEinoExecuteStdoutSuppressor()
+	stdoutDup.Record("execute", "hello", false)
+	out := newEinoAssistantOutputAccumulator("deep")
+	runMsgs := newEinoRunMessageAccumulator(nil)
+	handler := newEinoMainAssistantStreamHandler(einoMainAssistantStreamHandlerConfig{
+		AgentName:        "lead",
+		Emitter:          newEinoMainResponseStreamEmitter("conv-1", "deep", "lead", "stream-1", 1, progress, nil),
+		StdoutSuppressor: stdoutDup,
+		AssistantOutput:  out,
+		RunMessages:      runMsgs,
+	})
+
+	if handler.EmitDelta("hello") {
+		t.Fatal("duplicate execute stdout should not emit delta")
+	}
+	if got := handler.Finish(); got != "hello" {
+		t.Fatalf("finish = %q, want hello", got)
+	}
+	if len(eventTypes) != 0 {
+		t.Fatalf("events = %#v, want none", eventTypes)
+	}
+	if stdoutDup.Peek() != "" {
+		t.Fatal("duplicate target should be cleared on finish")
+	}
+	if out.LastAssistant() != "hello" {
+		t.Fatalf("last assistant = %q", out.LastAssistant())
+	}
+	if msgs := runMsgs.Messages(); len(msgs) != 1 || msgs[0].Content != "hello" {
+		t.Fatalf("run messages = %#v", msgs)
+	}
+}
+
+func TestEinoMainAssistantStreamHandlerRecordsWithoutProgress(t *testing.T) {
+	out := newEinoAssistantOutputAccumulator("plan_execute")
+	runMsgs := newEinoRunMessageAccumulator(nil)
+	handler := newEinoMainAssistantStreamHandler(einoMainAssistantStreamHandlerConfig{
+		AgentName:       "executor",
+		Emitter:         newEinoMainResponseStreamEmitter("conv-1", "plan_execute", "executor", "stream-1", 1, nil, nil),
+		AssistantOutput: out,
+		RunMessages:     runMsgs,
+	})
+
+	handler.EmitDelta(`{"response":"done"}`)
+	if got := handler.Finish(); got != `{"response":"done"}` {
+		t.Fatalf("finish = %q", got)
+	}
+	if out.LastPlanExecuteExecutor() != "done" {
+		t.Fatalf("executor output = %q", out.LastPlanExecuteExecutor())
+	}
+	if msgs := runMsgs.Messages(); len(msgs) != 1 || msgs[0].Content != `{"response":"done"}` {
+		t.Fatalf("run messages = %#v", msgs)
+	}
+}

internal/multiagent/eino_main_response_stream_emitter.go

@@ -0,0 +1,85 @@
+package multiagent
+
+import "cyberstrike-ai/internal/openai"
+
+type einoMainResponseStreamEmitter struct {
+	progress       func(eventType, message string, data interface{})
+	snapshotMCPIDs func() []string
+	conversationID string
+	orchMode       string
+	agentName      string
+	streamID       string
+	iteration      int
+	headerSent     bool
+	wireAccum      string
+}
+
+func newEinoMainResponseStreamEmitter(
+	conversationID, orchMode, agentName, streamID string,
+	iteration int,
+	progress func(eventType, message string, data interface{}),
+	snapshotMCPIDs func() []string,
+) *einoMainResponseStreamEmitter {
+	if snapshotMCPIDs == nil {
+		snapshotMCPIDs = func() []string { return nil }
+	}
+	return &einoMainResponseStreamEmitter{
+		progress:       progress,
+		snapshotMCPIDs: snapshotMCPIDs,
+		conversationID: conversationID,
+		orchMode:       orchMode,
+		agentName:      agentName,
+		streamID:       streamID,
+		iteration:      iteration,
+	}
+}
+
+func (e *einoMainResponseStreamEmitter) EmitDelta(delta, accumulated string) bool {
+	if e == nil || e.progress == nil || delta == "" {
+		return false
+	}
+	e.emitStart()
+	e.progress("response_delta", delta, openai.WithSSEAccumulated(e.responseData(), accumulated))
+	e.wireAccum, _ = normalizeStreamingDelta(e.wireAccum, delta)
+	return true
+}
+
+func (e *einoMainResponseStreamEmitter) EmitTailFromFull(full string) bool {
+	if e == nil || full == "" {
+		return false
+	}
+	_, tail := normalizeStreamingDelta(e.wireAccum, full)
+	if tail == "" {
+		return false
+	}
+	return e.EmitDelta(tail, full)
+}
+
+func (e *einoMainResponseStreamEmitter) emitStart() {
+	if e.headerSent || e.progress == nil {
+		return
+	}
+	e.progress("response_start", "", map[string]interface{}{
+		"conversationId":     e.conversationID,
+		"mcpExecutionIds":    e.snapshotMCPIDs(),
+		"messageGeneratedBy": "eino:" + e.agentName,
+		"einoRole":           "orchestrator",
+		"einoAgent":          e.agentName,
+		"orchestration":      e.orchMode,
+		"iteration":          e.iteration,
+		"streamId":           e.streamID,
+	})
+	e.headerSent = true
+}
+
+func (e *einoMainResponseStreamEmitter) responseData() map[string]interface{} {
+	return map[string]interface{}{
+		"conversationId":  e.conversationID,
+		"mcpExecutionIds": e.snapshotMCPIDs(),
+		"einoRole":        "orchestrator",
+		"einoAgent":       e.agentName,
+		"orchestration":   e.orchMode,
+		"iteration":       e.iteration,
+		"streamId":        e.streamID,
+	}
+}

internal/multiagent/eino_main_response_stream_emitter_test.go

@@ -0,0 +1,65 @@
+package multiagent
+
+import (
+	"testing"
+
+	"cyberstrike-ai/internal/openai"
+)
+
+func TestEinoMainResponseStreamEmitterEmitsStartOnceAndTail(t *testing.T) {
+	type progressEvent struct {
+		eventType string
+		message   string
+		data      map[string]interface{}
+	}
+	var events []progressEvent
+	progress := func(eventType, message string, data interface{}) {
+		m, _ := data.(map[string]interface{})
+		events = append(events, progressEvent{eventType: eventType, message: message, data: m})
+	}
+
+	emitter := newEinoMainResponseStreamEmitter(
+		"conv-1", "supervisor", "lead", "stream-1", 3, progress, func() []string { return []string{"mcp-1"} },
+	)
+	if !emitter.EmitDelta("he", "he") {
+		t.Fatal("first delta should be emitted")
+	}
+	if !emitter.EmitTailFromFull("hello") {
+		t.Fatal("tail should be emitted")
+	}
+	if emitter.EmitTailFromFull("hello") {
+		t.Fatal("duplicate tail should not be emitted")
+	}
+
+	if len(events) != 3 {
+		t.Fatalf("events = %#v, want start + 2 deltas", events)
+	}
+	if events[0].eventType != "response_start" {
+		t.Fatalf("event[0] = %s, want response_start", events[0].eventType)
+	}
+	if events[1].eventType != "response_delta" || events[1].message != "he" {
+		t.Fatalf("event[1] = %#v, want first delta", events[1])
+	}
+	if events[2].eventType != "response_delta" || events[2].message != "llo" {
+		t.Fatalf("event[2] = %#v, want tail delta", events[2])
+	}
+	if got := events[2].data[openai.SSEAccumulatedKey]; got != "hello" {
+		t.Fatalf("accumulated = %#v, want hello", got)
+	}
+	if got := events[0].data["messageGeneratedBy"]; got != "eino:lead" {
+		t.Fatalf("messageGeneratedBy = %#v", got)
+	}
+	if got := events[0].data["iteration"]; got != 3 {
+		t.Fatalf("iteration = %#v", got)
+	}
+}
+
+func TestEinoMainResponseStreamEmitterNoProgress(t *testing.T) {
+	emitter := newEinoMainResponseStreamEmitter("conv", "deep", "agent", "stream", 1, nil, nil)
+	if emitter.EmitDelta("hello", "hello") {
+		t.Fatal("nil progress should not emit")
+	}
+	if emitter.EmitTailFromFull("hello") {
+		t.Fatal("nil progress should not emit tail")
+	}
+}

internal/multiagent/eino_materialized_message_event_handler.go

@@ -0,0 +1,115 @@
+package multiagent
+
+import (
+	"strings"
+
+	"github.com/cloudwego/eino/adk"
+	"github.com/cloudwego/eino/schema"
+)
+
+type einoMaterializedMessageEventHandlerConfig struct {
+	ConversationID       string
+	OrchMode             string
+	Progress             func(eventType, message string, data interface{})
+	SnapshotMCPIDs       func() []string
+	StreamsMainAssistant func(agent string) bool
+	EinoRoleTag          func(agent string) string
+	RunProgress          *einoRunProgressTracker
+	StdoutSuppressor     *einoExecuteStdoutSuppressor
+	AssistantOutput      *einoAssistantOutputAccumulator
+	RunMessages          *einoRunMessageAccumulator
+	Usage                *einoRunUsageAccumulator
+	ToolResultHandler    *einoToolResultEventHandler
+	MarkPending          func(toolCallPendingInfo)
+	NextMainStreamID     func() string
+}
+
+type einoMaterializedMessageEventHandler struct {
+	conversationID       string
+	orchMode             string
+	progress             func(eventType, message string, data interface{})
+	snapshotMCPIDs       func() []string
+	streamsMainAssistant func(agent string) bool
+	einoRoleTag          func(agent string) string
+	runProgress          *einoRunProgressTracker
+	stdoutSuppressor     *einoExecuteStdoutSuppressor
+	assistantOutput      *einoAssistantOutputAccumulator
+	runMessages          *einoRunMessageAccumulator
+	usage                *einoRunUsageAccumulator
+	toolResultHandler    *einoToolResultEventHandler
+	markPending          func(toolCallPendingInfo)
+	nextMainStreamID     func() string
+}
+
+func newEinoMaterializedMessageEventHandler(cfg einoMaterializedMessageEventHandlerConfig) *einoMaterializedMessageEventHandler {
+	if cfg.SnapshotMCPIDs == nil {
+		cfg.SnapshotMCPIDs = func() []string { return nil }
+	}
+	if cfg.StreamsMainAssistant == nil {
+		cfg.StreamsMainAssistant = func(string) bool { return true }
+	}
+	if cfg.EinoRoleTag == nil {
+		cfg.EinoRoleTag = func(string) string { return "" }
+	}
+	if cfg.NextMainStreamID == nil {
+		cfg.NextMainStreamID = func() string { return "eino-main" }
+	}
+	return &einoMaterializedMessageEventHandler{
+		conversationID:       cfg.ConversationID,
+		orchMode:             cfg.OrchMode,
+		progress:             cfg.Progress,
+		snapshotMCPIDs:       cfg.SnapshotMCPIDs,
+		streamsMainAssistant: cfg.StreamsMainAssistant,
+		einoRoleTag:          cfg.EinoRoleTag,
+		runProgress:          cfg.RunProgress,
+		stdoutSuppressor:     cfg.StdoutSuppressor,
+		assistantOutput:      cfg.AssistantOutput,
+		runMessages:          cfg.RunMessages,
+		usage:                cfg.Usage,
+		toolResultHandler:    cfg.ToolResultHandler,
+		markPending:          cfg.MarkPending,
+		nextMainStreamID:     cfg.NextMainStreamID,
+	}
+}
+
+func (h *einoMaterializedMessageEventHandler) Handle(mv *adk.MessageVariant, msg adk.Message, agentName string) bool {
+	if h == nil || mv == nil || msg == nil {
+		return false
+	}
+	if h.runMessages != nil {
+		h.runMessages.Append(msg)
+	}
+	if msg.Role == schema.Assistant && h.usage != nil {
+		h.usage.AddMessage(msg)
+	}
+	if h.runProgress != nil {
+		h.runProgress.EmitToolCalls(mergeMessageToolCalls(msg), agentName, h.markPending)
+	}
+	if mv.Role == schema.Assistant {
+		newEinoReasoningStreamEmitter(h.conversationID, h.orchMode, agentName, h.einoRoleTag(agentName), h.progress, nil).EmitComplete(msg.ReasoningContent)
+		body := strings.TrimSpace(msg.Content)
+		if body != "" {
+			if h.streamsMainAssistant(agentName) {
+				newEinoMainAssistantCompleteHandler(einoMainAssistantCompleteHandlerConfig{
+					AgentName:        agentName,
+					Emitter:          newEinoMainResponseStreamEmitter(h.conversationID, h.orchMode, agentName, h.nextMainStreamID(), h.mainIteration(agentName), h.progress, h.snapshotMCPIDs),
+					StdoutSuppressor: h.stdoutSuppressor,
+					AssistantOutput:  h.assistantOutput,
+				}).EmitComplete(body)
+			} else {
+				newEinoSubAgentReplyEmitter(h.conversationID, agentName, h.progress, nil).EmitComplete(body)
+			}
+		}
+	}
+	if h.toolResultHandler != nil {
+		h.toolResultHandler.HandleMaterialized(mv, msg, agentName)
+	}
+	return true
+}
+
+func (h *einoMaterializedMessageEventHandler) mainIteration(agentName string) int {
+	if h == nil || h.runProgress == nil {
+		return 0
+	}
+	return h.runProgress.MainIteration(agentName)
+}

internal/multiagent/eino_materialized_message_event_handler_test.go

@@ -0,0 +1,151 @@
+package multiagent
+
+import (
+	"testing"
+
+	"cyberstrike-ai/internal/einomcp"
+
+	"github.com/cloudwego/eino/adk"
+	"github.com/cloudwego/eino/schema"
+)
+
+func TestEinoMaterializedMessageEventHandlerHandlesMainAssistant(t *testing.T) {
+	var events []string
+	runMessages := newEinoRunMessageAccumulator(nil)
+	assistantOutput := newEinoAssistantOutputAccumulator("deep")
+	usage := newEinoRunUsageAccumulator()
+	runProgress := newEinoRunProgressTracker(
+		"deep", "lead", "conv-1",
+		func(eventType, _ string, _ interface{}) { events = append(events, eventType) },
+		func(agent string) bool { return agent == "lead" },
+		nil,
+	)
+	handler := newEinoMaterializedMessageEventHandler(einoMaterializedMessageEventHandlerConfig{
+		ConversationID:       "conv-1",
+		OrchMode:             "deep",
+		Progress:             func(eventType, _ string, _ interface{}) { events = append(events, eventType) },
+		RunMessages:          runMessages,
+		Usage:                usage,
+		AssistantOutput:      assistantOutput,
+		RunProgress:          runProgress,
+		StreamsMainAssistant: func(agent string) bool { return agent == "lead" },
+		EinoRoleTag:          func(string) string { return "orchestrator" },
+		NextMainStreamID:     func() string { return "main-complete-1" },
+	})
+	msg := schema.AssistantMessage(" done ", nil)
+	msg.ReasoningContent = "thought"
+	msg.ResponseMeta = &schema.ResponseMeta{Usage: &schema.TokenUsage{
+		PromptTokens:     11,
+		CompletionTokens: 7,
+		TotalTokens:      18,
+	}}
+	mv := &adk.MessageVariant{Role: schema.Assistant}
+
+	if !handler.Handle(mv, msg, "lead") {
+		t.Fatal("main assistant message was not handled")
+	}
+	if assistantOutput.LastAssistant() != "done" {
+		t.Fatalf("last assistant = %q", assistantOutput.LastAssistant())
+	}
+	if msgs := runMessages.Messages(); len(msgs) != 1 || msgs[0].Content != " done " {
+		t.Fatalf("run messages = %#v", msgs)
+	}
+	if got := usage.Summary(); got.ModelCalls != 1 || got.TotalTokens != 18 {
+		t.Fatalf("usage = %#v, want one assistant model call", got)
+	}
+	if !containsString(events, "reasoning_chain") || !containsString(events, "response_start") || !containsString(events, "response_delta") {
+		t.Fatalf("events = %#v, want reasoning and response events", events)
+	}
+}
+
+func TestEinoMaterializedMessageEventHandlerHandlesSubAssistant(t *testing.T) {
+	var events []string
+	runMessages := newEinoRunMessageAccumulator(nil)
+	assistantOutput := newEinoAssistantOutputAccumulator("deep")
+	handler := newEinoMaterializedMessageEventHandler(einoMaterializedMessageEventHandlerConfig{
+		ConversationID:       "conv-1",
+		OrchMode:             "deep",
+		Progress:             func(eventType, _ string, _ interface{}) { events = append(events, eventType) },
+		RunMessages:          runMessages,
+		AssistantOutput:      assistantOutput,
+		StreamsMainAssistant: func(agent string) bool { return agent == "lead" },
+		EinoRoleTag:          func(string) string { return "sub" },
+	})
+
+	if !handler.Handle(&adk.MessageVariant{Role: schema.Assistant}, schema.AssistantMessage("sub done", nil), "worker") {
+		t.Fatal("sub assistant message was not handled")
+	}
+	if assistantOutput.LastAssistant() != "" {
+		t.Fatalf("sub assistant should not update main output, got %q", assistantOutput.LastAssistant())
+	}
+	if len(runMessages.Messages()) != 1 {
+		t.Fatalf("run messages = %#v, want appended original message", runMessages.Messages())
+	}
+	if !containsString(events, "eino_agent_reply") {
+		t.Fatalf("events = %#v, want sub reply event", events)
+	}
+}
+
+func TestEinoMaterializedMessageEventHandlerHandlesToolCallsAndToolResult(t *testing.T) {
+	var events []string
+	var marked []toolCallPendingInfo
+	runMessages := newEinoRunMessageAccumulator(nil)
+	runProgress := newEinoRunProgressTracker(
+		"deep", "lead", "conv-1",
+		func(eventType, _ string, _ interface{}) { events = append(events, eventType) },
+		func(agent string) bool { return agent == "lead" },
+		nil,
+	)
+	toolResultEmitter := newEinoToolResultProgressEmitter(einoToolResultProgressEmitterConfig{
+		ConversationID: "conv-1",
+		Progress:       func(eventType, _ string, _ interface{}) { events = append(events, eventType) },
+	})
+	toolResultHandler := newEinoToolResultEventHandler(einoToolResultEventHandlerConfig{Emitter: toolResultEmitter})
+	handler := newEinoMaterializedMessageEventHandler(einoMaterializedMessageEventHandlerConfig{
+		ConversationID:    "conv-1",
+		OrchMode:          "deep",
+		Progress:          func(eventType, _ string, _ interface{}) { events = append(events, eventType) },
+		RunMessages:       runMessages,
+		RunProgress:       runProgress,
+		ToolResultHandler: toolResultHandler,
+		MarkPending: func(info toolCallPendingInfo) {
+			marked = append(marked, info)
+		},
+	})
+
+	toolCallMsg := &schema.Message{
+		Role: schema.Assistant,
+		ToolCalls: []schema.ToolCall{{
+			ID:   "call-1",
+			Type: "function",
+			Function: schema.FunctionCall{
+				Name:      "execute",
+				Arguments: `{"command":`,
+			},
+		}},
+	}
+	if !handler.Handle(&adk.MessageVariant{Role: schema.Assistant}, toolCallMsg, "lead") {
+		t.Fatal("tool call message was not handled")
+	}
+	toolMsg := schema.ToolMessage(einomcp.ToolErrorPrefix+"bad command", "call-1", schema.WithToolName("execute"))
+	if !handler.Handle(&adk.MessageVariant{Role: schema.Tool}, toolMsg, "lead") {
+		t.Fatal("tool message was not handled")
+	}
+
+	if !containsString(events, "tool_call") || !containsString(events, "tool_result") || containsString(events, "model_output_rejected") {
+		t.Fatalf("events = %#v, want real tool_call and tool_result without model-output recovery", events)
+	}
+	if len(marked) != 1 || marked[0].ToolCallID != "call-1" || marked[0].ToolName != "execute" {
+		t.Fatalf("marked pending = %#v", marked)
+	}
+	if len(runMessages.Messages()) != 2 {
+		t.Fatalf("run messages = %#v, want assistant and tool messages", runMessages.Messages())
+	}
+}
+
+func TestEinoMaterializedMessageEventHandlerIgnoresNil(t *testing.T) {
+	handler := newEinoMaterializedMessageEventHandler(einoMaterializedMessageEventHandlerConfig{})
+	if handler.Handle(nil, nil, "lead") {
+		t.Fatal("nil message should be ignored")
+	}
+}

internal/multiagent/eino_message_stream_receiver.go

@@ -0,0 +1,61 @@
+package multiagent
+
+import (
+	"context"
+	"errors"
+	"io"
+
+	"github.com/cloudwego/eino/schema"
+)
+
+// recvEinoSchemaMessageStreamWithContext consumes an Eino schema.Message stream
+// and stops promptly when ctx is canceled. EOF and nil chunks are treated as a
+// normal stream boundary.
+func recvEinoSchemaMessageStreamWithContext(
+	ctx context.Context,
+	stream *schema.StreamReader[*schema.Message],
+	buffer int,
+	onChunk func(*schema.Message),
+) error {
+	if stream == nil {
+		return nil
+	}
+	if buffer <= 0 {
+		buffer = 1
+	}
+	type streamMsg struct {
+		chunk *schema.Message
+		err   error
+	}
+	recvCh := make(chan streamMsg, buffer)
+	go func() {
+		defer close(recvCh)
+		for {
+			ch, rerr := stream.Recv()
+			recvCh <- streamMsg{chunk: ch, err: rerr}
+			if rerr != nil {
+				return
+			}
+		}
+	}()
+	for {
+		select {
+		case <-ctx.Done():
+			return ctx.Err()
+		case sm, ok := <-recvCh:
+			if !ok {
+				return nil
+			}
+			if errors.Is(sm.err, io.EOF) {
+				return nil
+			}
+			if sm.err != nil {
+				return sm.err
+			}
+			if sm.chunk == nil || onChunk == nil {
+				continue
+			}
+			onChunk(sm.chunk)
+		}
+	}
+}

internal/multiagent/eino_middleware.go

@@ -17,6 +17,7 @@ import (
 	"github.com/cloudwego/eino/adk/middlewares/plantask"
 	"github.com/cloudwego/eino/adk/middlewares/reduction"
 	"github.com/cloudwego/eino/components/tool"
+	"github.com/cloudwego/eino/schema"
 	"go.uber.org/zap"
 )
 
@@ -149,6 +150,43 @@ func buildReductionMiddleware(ctx context.Context, mw config.MultiAgentEinoMiddl
 	return redMW, nil
 }
 
+func buildAgenticReductionMiddleware(
+	ctx context.Context,
+	mw config.MultiAgentEinoMiddlewareConfig,
+	projectID, convID string,
+	loc *localbk.Local,
+	logger *zap.Logger,
+) (adk.TypedChatModelAgentMiddleware[*schema.AgenticMessage], error) {
+	if loc == nil {
+		return nil, fmt.Errorf("agentic reduction: local backend nil")
+	}
+	root := reductionCacheRootDir(mw.ReductionRootDir, projectID, convID)
+	if err := os.MkdirAll(root, 0o755); err != nil {
+		return nil, fmt.Errorf("agentic reduction root: %w", err)
+	}
+	excl := append([]string(nil), mw.ReductionClearExclude...)
+	defaultExcl := []string{
+		"task", "transfer_to_agent", "exit", "write_todos", "skill", "tool_search",
+		"TaskCreate", "TaskGet", "TaskUpdate", "TaskList",
+	}
+	excl = append(excl, defaultExcl...)
+	redMW, err := reduction.NewTyped[*schema.AgenticMessage](ctx, &reduction.TypedConfig[*schema.AgenticMessage]{
+		Backend:           loc,
+		RootDir:           root,
+		ReadFileToolName:  "read_file",
+		ClearExcludeTools: excl,
+		MaxLengthForTrunc: mw.ReductionMaxLengthForTruncEffective(),
+		MaxTokensForClear: int64(mw.ReductionMaxTokensForClearEffective()),
+	})
+	if err != nil {
+		return nil, err
+	}
+	if logger != nil {
+		logger.Info("eino middleware: agentic reduction enabled", zap.String("root", root))
+	}
+	return redMW, nil
+}
+
 // prependEinoMiddlewares returns handlers to prepend (outermost first) and optionally replaces tools when tool_search is used.
 // toolSearchActive is true when the toolsearch middleware was mounted (dynamic tools split off); callers should pass this to
 // injectToolNamesOnlyInstruction — tool_search is not part of the pre-middleware tools list, so name-scanning alone cannot detect it.
@@ -243,6 +281,97 @@ func prependEinoMiddlewares(
 	return outTools, extraHandlers, toolSearchActive, nil
 }
 
+func prependEinoAgenticMiddlewares(
+	ctx context.Context,
+	mw *config.MultiAgentEinoMiddlewareConfig,
+	place einoMWPlacement,
+	tools []tool.BaseTool,
+	einoLoc *localbk.Local,
+	skillsRoot string,
+	conversationID string,
+	projectID string,
+	logger *zap.Logger,
+) (outTools []tool.BaseTool, extraHandlers []adk.TypedChatModelAgentMiddleware[*schema.AgenticMessage], toolSearchActive bool, err error) {
+	if mw == nil {
+		return tools, nil, false, nil
+	}
+	outTools = tools
+
+	if mw.PatchToolCallsEffective() {
+		patchMW, perr := patchtoolcalls.NewTyped[*schema.AgenticMessage](ctx, &patchtoolcalls.Config{})
+		if perr != nil {
+			return nil, nil, false, fmt.Errorf("agentic patchtoolcalls: %w", perr)
+		}
+		extraHandlers = append(extraHandlers, patchMW)
+	}
+
+	if mw.ReductionEnable && einoLoc != nil {
+		if place == einoMWSub && !mw.ReductionSubAgents {
+			// skip
+		} else {
+			redMW, rerr := buildAgenticReductionMiddleware(ctx, *mw, projectID, conversationID, einoLoc, logger)
+			if rerr != nil {
+				return nil, nil, false, rerr
+			}
+			extraHandlers = append(extraHandlers, redMW)
+		}
+	}
+
+	minTools := mw.ToolSearchMinTools
+	if minTools <= 0 {
+		minTools = 20
+	}
+	alwaysVis := mw.ToolSearchAlwaysVisible
+	if alwaysVis <= 0 {
+		alwaysVis = 12
+	}
+	if mw.ToolSearchEnable && len(tools) >= minTools {
+		static, dynamic, split := splitToolsForToolSearchByNames(tools, mergeAlwaysVisibleToolNames(mw.ToolSearchAlwaysVisibleTools), alwaysVis)
+		if split && len(dynamic) > 0 {
+			ts, terr := toolsearch.NewTyped[*schema.AgenticMessage](ctx, &toolsearch.Config{DynamicTools: dynamic})
+			if terr != nil {
+				return nil, nil, false, fmt.Errorf("agentic toolsearch: %w", terr)
+			}
+			extraHandlers = append(extraHandlers, ts)
+			outTools = static
+			toolSearchActive = true
+			if logger != nil {
+				logger.Info("eino middleware: agentic tool_search enabled",
+					zap.Int("static_tools", len(static)),
+					zap.Int("dynamic_tools", len(dynamic)))
+			}
+		}
+	}
+
+	if place == einoMWMain && mw.PlantaskEnable {
+		if einoLoc == nil || strings.TrimSpace(skillsRoot) == "" {
+			if logger != nil {
+				logger.Warn("eino middleware: agentic plantask_enable ignored (need eino_skills + skills_dir)")
+			}
+		} else {
+			rel := strings.TrimSpace(mw.PlantaskRelDir)
+			if rel == "" {
+				rel = ".eino/plantask"
+			}
+			baseDir := filepath.Join(skillsRoot, rel, sanitizeEinoPathSegment(conversationID))
+			if mk := os.MkdirAll(baseDir, 0o755); mk != nil {
+				return nil, nil, toolSearchActive, fmt.Errorf("agentic plantask mkdir: %w", mk)
+			}
+			ptBE := newLocalPlantaskBackend(einoLoc)
+			pt, perr := plantask.NewTyped[*schema.AgenticMessage](ctx, &plantask.Config{Backend: ptBE, BaseDir: baseDir})
+			if perr != nil {
+				return nil, nil, toolSearchActive, fmt.Errorf("agentic plantask: %w", perr)
+			}
+			extraHandlers = append(extraHandlers, pt)
+			if logger != nil {
+				logger.Info("eino middleware: agentic plantask enabled", zap.String("baseDir", baseDir))
+			}
+		}
+	}
+
+	return outTools, extraHandlers, toolSearchActive, nil
+}
+
 func deepExtrasFromConfig(ma *config.MultiAgentConfig) (outputKey string, taskDesc func(context.Context, []adk.Agent) (string, error)) {
 	if ma == nil {
 		return "", nil
@@ -273,3 +402,34 @@ func deepExtrasFromConfig(ma *config.MultiAgentConfig) (outputKey string, taskDe
 	}
 	return outputKey, taskDesc
 }
+
+func deepAgenticExtrasFromConfig(ma *config.MultiAgentConfig) (outputKey string, taskDesc func(context.Context, []adk.TypedAgent[*schema.AgenticMessage]) (string, error)) {
+	if ma == nil {
+		return "", nil
+	}
+	mw := ma.EinoMiddleware
+	if k := strings.TrimSpace(mw.DeepOutputKey); k != "" {
+		outputKey = k
+	}
+	prefix := strings.TrimSpace(mw.TaskToolDescriptionPrefix)
+	if prefix != "" {
+		taskDesc = func(ctx context.Context, agents []adk.TypedAgent[*schema.AgenticMessage]) (string, error) {
+			_ = ctx
+			var names []string
+			for _, a := range agents {
+				if a == nil {
+					continue
+				}
+				n := strings.TrimSpace(a.Name(ctx))
+				if n != "" {
+					names = append(names, n)
+				}
+			}
+			if len(names) == 0 {
+				return prefix, nil
+			}
+			return prefix + "\n可用子代理（按名称 transfer / task 调用）：" + strings.Join(names, "、"), nil
+		}
+	}
+	return outputKey, taskDesc
+}

internal/multiagent/eino_middleware_test.go

@@ -7,6 +7,10 @@ import (
 	"strings"
 	"testing"
 
+	"cyberstrike-ai/internal/config"
+
+	localbk "github.com/cloudwego/eino-ext/adk/backend/local"
+	"github.com/cloudwego/eino/adk"
 	"github.com/cloudwego/eino/components/tool"
 	"github.com/cloudwego/eino/schema"
 )
@@ -28,6 +32,169 @@ func TestReductionCacheRootDir(t *testing.T) {
 	}
 }
 
+func TestBuildAgenticReductionMiddlewareClearsOldAgenticToolResult(t *testing.T) {
+	ctx := context.Background()
+	loc, err := localbk.NewBackend(ctx, &localbk.Config{})
+	if err != nil {
+		t.Fatalf("NewBackend: %v", err)
+	}
+	root := t.TempDir()
+	mw, err := buildAgenticReductionMiddleware(ctx, config.MultiAgentEinoMiddlewareConfig{
+		ReductionRootDir:           root,
+		ReductionMaxTokensForClear: 1,
+	}, "", "conv-1", loc, nil)
+	if err != nil {
+		t.Fatalf("buildAgenticReductionMiddleware: %v", err)
+	}
+	oldText := strings.Repeat("old-tool-output-", 20)
+	newText := strings.Repeat("new-tool-output-", 20)
+	state := &adk.TypedChatModelAgentState[*schema.AgenticMessage]{
+		Messages: []*schema.AgenticMessage{
+			agenticAssistantToolCall("old-call", "execute", `{"command":"old"}`),
+			agenticToolResult("old-call", "execute", oldText),
+			agenticAssistantToolCall("new-call", "execute", `{"command":"new"}`),
+			agenticToolResult("new-call", "execute", newText),
+		},
+	}
+	_, out, err := mw.BeforeModelRewriteState(ctx, state, nil)
+	if err != nil {
+		t.Fatalf("BeforeModelRewriteState: %v", err)
+	}
+	oldGot := out.Messages[1].ContentBlocks[0].FunctionToolResult.Content[0].Text.Text
+	newGot := out.Messages[3].ContentBlocks[0].FunctionToolResult.Content[0].Text.Text
+	if oldGot == oldText {
+		t.Fatal("agentic reduction did not clear old oversized tool result")
+	}
+	if !strings.Contains(oldGot, "read_file") {
+		t.Fatalf("cleared content should mention read_file, got %q", oldGot)
+	}
+	if newGot != newText {
+		t.Fatalf("latest tool result should be retained, got %q", newGot)
+	}
+}
+
+func agenticAssistantToolCall(callID, name, arguments string) *schema.AgenticMessage {
+	return &schema.AgenticMessage{
+		Role: schema.AgenticRoleTypeAssistant,
+		ContentBlocks: []*schema.ContentBlock{schema.NewContentBlock(&schema.FunctionToolCall{
+			CallID:    callID,
+			Name:      name,
+			Arguments: arguments,
+		})},
+	}
+}
+
+func agenticToolResult(callID, name, text string) *schema.AgenticMessage {
+	return &schema.AgenticMessage{
+		Role: schema.AgenticRoleTypeUser,
+		ContentBlocks: []*schema.ContentBlock{schema.NewContentBlock(&schema.FunctionToolResult{
+			CallID: callID,
+			Name:   name,
+			Content: []*schema.FunctionToolResultContentBlock{{
+				Type: schema.FunctionToolResultContentBlockTypeText,
+				Text: &schema.UserInputText{Text: text},
+			}},
+		})},
+	}
+}
+
+func TestBuildAgenticReductionMiddlewareHandlesSingleAgenticToolResult(t *testing.T) {
+	ctx := context.Background()
+	loc, err := localbk.NewBackend(ctx, &localbk.Config{})
+	if err != nil {
+		t.Fatalf("NewBackend: %v", err)
+	}
+	mw, err := buildAgenticReductionMiddleware(ctx, config.MultiAgentEinoMiddlewareConfig{
+		ReductionRootDir:           t.TempDir(),
+		ReductionMaxTokensForClear: 1,
+	}, "", "conv-1", loc, nil)
+	if err != nil {
+		t.Fatalf("buildAgenticReductionMiddleware: %v", err)
+	}
+	state := &adk.TypedChatModelAgentState[*schema.AgenticMessage]{
+		Messages: []*schema.AgenticMessage{
+			{
+				Role: schema.AgenticRoleTypeUser,
+				ContentBlocks: []*schema.ContentBlock{schema.NewContentBlock(&schema.FunctionToolResult{
+					CallID: "call-1",
+					Name:   "execute",
+					Content: []*schema.FunctionToolResultContentBlock{{
+						Type: schema.FunctionToolResultContentBlockTypeText,
+						Text: &schema.UserInputText{Text: strings.Repeat("tool-output-", 20)},
+					}},
+				})},
+			},
+		},
+	}
+	_, out, err := mw.BeforeModelRewriteState(ctx, state, nil)
+	if err != nil {
+		t.Fatalf("BeforeModelRewriteState: %v", err)
+	}
+	got := out.Messages[0].ContentBlocks[0].FunctionToolResult.Content[0].Text.Text
+	if got != strings.Repeat("tool-output-", 20) {
+		t.Fatalf("single retained tool result should not be cleared, got %q", got)
+	}
+}
+
+func TestPrependEinoAgenticMiddlewaresRespectsReductionPlacement(t *testing.T) {
+	ctx := context.Background()
+	loc, err := localbk.NewBackend(ctx, &localbk.Config{})
+	if err != nil {
+		t.Fatalf("NewBackend: %v", err)
+	}
+	patchToolCalls := false
+	mw := &config.MultiAgentEinoMiddlewareConfig{
+		ReductionEnable:            true,
+		ReductionRootDir:           t.TempDir(),
+		ReductionMaxTokensForClear: 100,
+		PatchToolCalls:             &patchToolCalls,
+	}
+	_, mainHandlers, _, err := prependEinoAgenticMiddlewares(ctx, mw, einoMWMain, nil, loc, "", "conv-1", "", nil)
+	if err != nil {
+		t.Fatalf("prepend main: %v", err)
+	}
+	if len(mainHandlers) != 1 {
+		t.Fatalf("main handlers = %d, want reduction", len(mainHandlers))
+	}
+	_, subHandlers, _, err := prependEinoAgenticMiddlewares(ctx, mw, einoMWSub, nil, loc, "", "conv-1", "", nil)
+	if err != nil {
+		t.Fatalf("prepend sub: %v", err)
+	}
+	if len(subHandlers) != 0 {
+		t.Fatalf("sub handlers = %d, want skipped when reduction_sub_agents=false", len(subHandlers))
+	}
+	mw.ReductionSubAgents = true
+	_, subHandlers, _, err = prependEinoAgenticMiddlewares(ctx, mw, einoMWSub, nil, loc, "", "conv-1", "", nil)
+	if err != nil {
+		t.Fatalf("prepend sub enabled: %v", err)
+	}
+	if len(subHandlers) != 1 {
+		t.Fatalf("sub handlers = %d, want reduction when reduction_sub_agents=true", len(subHandlers))
+	}
+}
+
+func TestPrependEinoAgenticMiddlewaresMountsToolSearchAndPatchToolCalls(t *testing.T) {
+	ctx := context.Background()
+	mw := &config.MultiAgentEinoMiddlewareConfig{
+		ToolSearchEnable:        true,
+		ToolSearchMinTools:      20,
+		ToolSearchAlwaysVisible: 5,
+	}
+	outTools, handlers, toolSearchActive, err := prependEinoAgenticMiddlewares(ctx, mw, einoMWMain, stubTools(25), nil, "", "conv-test", "", nil)
+	if err != nil {
+		t.Fatalf("prependEinoAgenticMiddlewares: %v", err)
+	}
+	if !toolSearchActive {
+		t.Fatal("agentic tool_search should be active")
+	}
+	if len(outTools) != 5 {
+		t.Fatalf("mounted tools = %d, want static visible tools only", len(outTools))
+	}
+	if len(handlers) != 2 {
+		t.Fatalf("handlers = %d, want patchtoolcalls + toolsearch", len(handlers))
+	}
+}
+
 type stubTool struct{ name string }
 
 func (s stubTool) Info(_ context.Context) (*schema.ToolInfo, error) {

internal/multiagent/eino_model_facing_trace.go

@@ -6,6 +6,7 @@ import (
 	"sync"
 
 	"github.com/cloudwego/eino/adk"
+	"github.com/cloudwego/eino/schema"
 )
 
 // modelFacingTraceHolder 保存「即将送入 ChatModel」的消息快照（已走 summarization / reduction / orphan 修剪等），
@@ -43,6 +44,19 @@ func (h *modelFacingTraceHolder) storeFromState(state *adk.ChatModelAgentState)
 	h.mu.Unlock()
 }
 
+func (h *modelFacingTraceHolder) storeFromAgenticState(state *adk.TypedChatModelAgentState[*schema.AgenticMessage]) {
+	if h == nil || state == nil || len(state.Messages) == 0 {
+		return
+	}
+	cloned := cloneADKMessagesForTrace(AgenticMessagesToEino(state.Messages))
+	if len(cloned) == 0 {
+		return
+	}
+	h.mu.Lock()
+	h.msgs = cloned
+	h.mu.Unlock()
+}
+
 func cloneADKMessagesForTrace(msgs []adk.Message) []adk.Message {
 	if len(msgs) == 0 {
 		return nil
@@ -82,3 +96,29 @@ func (m *modelFacingTraceMiddleware) BeforeModelRewriteState(
 	}
 	return ctx, state, nil
 }
+
+type agenticModelFacingTraceMiddleware struct {
+	*adk.TypedBaseChatModelAgentMiddleware[*schema.AgenticMessage]
+	holder *modelFacingTraceHolder
+}
+
+func newAgenticModelFacingTraceMiddleware(holder *modelFacingTraceHolder) adk.TypedChatModelAgentMiddleware[*schema.AgenticMessage] {
+	if holder == nil {
+		return nil
+	}
+	return &agenticModelFacingTraceMiddleware{
+		TypedBaseChatModelAgentMiddleware: &adk.TypedBaseChatModelAgentMiddleware[*schema.AgenticMessage]{},
+		holder:                            holder,
+	}
+}
+
+func (m *agenticModelFacingTraceMiddleware) BeforeModelRewriteState(
+	ctx context.Context,
+	state *adk.TypedChatModelAgentState[*schema.AgenticMessage],
+	mc *adk.TypedModelContext[*schema.AgenticMessage],
+) (context.Context, *adk.TypedChatModelAgentState[*schema.AgenticMessage], error) {
+	if m.holder != nil && state != nil {
+		m.holder.storeFromAgenticState(state)
+	}
+	return ctx, state, nil
+}

internal/multiagent/eino_model_resilience.go

@@ -0,0 +1,500 @@
+package multiagent
+
+import (
+	"context"
+	"errors"
+	"fmt"
+	"net"
+	"net/http"
+	"strings"
+	"sync"
+	"time"
+
+	"cyberstrike-ai/internal/config"
+	"cyberstrike-ai/internal/openai"
+	"cyberstrike-ai/internal/reasoning"
+
+	agenticopenai "github.com/cloudwego/eino-ext/components/model/agenticopenai"
+	einoopenai "github.com/cloudwego/eino-ext/components/model/openai"
+	"github.com/cloudwego/eino/adk"
+	"github.com/cloudwego/eino/components/model"
+	"github.com/cloudwego/eino/schema"
+	"go.uber.org/zap"
+)
+
+type einoModelMode string
+
+const (
+	einoModelModeNormal  einoModelMode = "normal"
+	einoModelModePlanner einoModelMode = "planner"
+)
+
+type einoModelFactory func(ctx context.Context, oa config.OpenAIConfig, mode einoModelMode) (model.ToolCallingChatModel, error)
+type einoAgenticModelConfigFactory func(ctx context.Context, oa config.OpenAIConfig, mode einoModelMode) (model.AgenticModel, error)
+
+func newEinoBaseHTTPClient() *http.Client {
+	return &http.Client{
+		Timeout: 30 * time.Minute,
+		Transport: &http.Transport{
+			DialContext: (&net.Dialer{
+				Timeout:   300 * time.Second,
+				KeepAlive: 300 * time.Second,
+			}).DialContext,
+			MaxIdleConns:          100,
+			MaxIdleConnsPerHost:   10,
+			IdleConnTimeout:       90 * time.Second,
+			TLSHandshakeTimeout:   30 * time.Second,
+			ResponseHeaderTimeout: 60 * time.Minute,
+		},
+	}
+}
+
+func newEinoOpenAIChatModelFactory(
+	baseHTTPClient *http.Client,
+	reasoningClient *reasoning.ClientIntent,
+	logger *zap.Logger,
+) einoModelFactory {
+	if baseHTTPClient == nil {
+		baseHTTPClient = newEinoBaseHTTPClient()
+	}
+	return func(ctx context.Context, oa config.OpenAIConfig, mode einoModelMode) (model.ToolCallingChatModel, error) {
+		httpClient := openai.NewEinoHTTPClient(&oa, baseHTTPClient)
+		openai.AttachSummarizationDiagTransport(httpClient, logger)
+		maxCompletionTokens := oa.MaxCompletionTokensEffective()
+		modelCfg := &einoopenai.ChatModelConfig{
+			APIKey:              oa.APIKey,
+			BaseURL:             strings.TrimSuffix(oa.BaseURL, "/"),
+			Model:               oa.Model,
+			HTTPClient:          httpClient,
+			MaxCompletionTokens: &maxCompletionTokens,
+		}
+		if mode == einoModelModePlanner {
+			reasoning.ApplyPlanExecutePlannerModelConfig(modelCfg, &oa)
+		} else {
+			reasoning.ApplyToEinoChatModelConfig(modelCfg, &oa, reasoningClient)
+		}
+		baseModel, err := einoopenai.NewChatModel(ctx, modelCfg)
+		if err != nil {
+			return nil, err
+		}
+		return newStreamToolCallIndexRepairModel(baseModel), nil
+	}
+}
+
+func newEinoOpenAIAgenticChatModelFactory(
+	baseHTTPClient *http.Client,
+	reasoningClient *reasoning.ClientIntent,
+	logger *zap.Logger,
+) einoAgenticModelConfigFactory {
+	if baseHTTPClient == nil {
+		baseHTTPClient = newEinoBaseHTTPClient()
+	}
+	return func(ctx context.Context, oa config.OpenAIConfig, mode einoModelMode) (model.AgenticModel, error) {
+		if !supportsEinoAgenticOpenAIBackend(oa) {
+			return nil, fmt.Errorf("eino agentic model: provider %q is not enabled for agenticopenai backend", strings.TrimSpace(oa.Provider))
+		}
+		httpClient := openai.NewEinoHTTPClient(&oa, baseHTTPClient)
+		openai.AttachSummarizationDiagTransport(httpClient, logger)
+		maxCompletionTokens := oa.MaxCompletionTokensEffective()
+		modelCfg := &agenticopenai.ChatConfig{
+			APIKey:              oa.APIKey,
+			BaseURL:             strings.TrimSuffix(oa.BaseURL, "/"),
+			Model:               oa.Model,
+			HTTPClient:          httpClient,
+			MaxCompletionTokens: &maxCompletionTokens,
+			ExtraFields:         reasoning.AgenticOpenAIExtraFields(&oa, reasoningClient),
+		}
+		if mode == einoModelModePlanner {
+			modelCfg.ExtraFields = reasoning.AgenticOpenAIPlannerExtraFields(&oa)
+		}
+		return agenticopenai.NewChatModel(ctx, modelCfg)
+	}
+}
+
+func supportsEinoAgenticOpenAIBackend(oa config.OpenAIConfig) bool {
+	provider := strings.ToLower(strings.TrimSpace(oa.Provider))
+	return provider == "" || provider == "openai" || provider == "openai_compatible"
+}
+
+func agenticModelGateFactory(factory einoAgenticModelConfigFactory, oa config.OpenAIConfig, mode einoModelMode) einoAgenticModelFactory {
+	if factory == nil {
+		return nil
+	}
+	return func(ctx context.Context) (model.AgenticModel, error) {
+		return factory(ctx, oa, mode)
+	}
+}
+
+func newEinoModelRetryConfig(
+	mw *config.MultiAgentEinoMiddlewareConfig,
+	logger *zap.Logger,
+	scope string,
+) *adk.ModelRetryConfig {
+	maxRetries := RunRetryMaxAttemptsFromConfig(mw)
+	maxBackoff := einoRunRetryMaxBackoffFromConfig(mw)
+	return &adk.ModelRetryConfig{
+		MaxRetries: maxRetries,
+		BackoffFunc: func(_ context.Context, attempt int) time.Duration {
+			return einoTransientRetryBackoff(attempt-1, maxBackoff)
+		},
+		ShouldRetry: func(ctx context.Context, retryCtx *adk.RetryContext) *adk.RetryDecision {
+			if retryCtx == nil || ctx.Err() != nil {
+				return &adk.RetryDecision{}
+			}
+			if retryCtx.Err != nil {
+				if !isEinoTransientRunError(retryCtx.Err) {
+					return &adk.RetryDecision{}
+				}
+				if logger != nil {
+					kind, summary := einoTransientRunErrorUserDetail(retryCtx.Err)
+					logger.Warn("eino native model retry",
+						zap.String("scope", scope),
+						zap.Int("attempt", retryCtx.RetryAttempt),
+						zap.Int("maxRetries", maxRetries),
+						zap.String("errorKind", kind),
+						zap.String("errorSummary", summary),
+					)
+				}
+				return &adk.RetryDecision{Retry: true, RejectReason: "transient_model_error"}
+			}
+			if isRetryableEmptyModelOutput(retryCtx.OutputMessage) {
+				if logger != nil {
+					logger.Warn("eino native model retry: empty model output",
+						zap.String("scope", scope),
+						zap.Int("attempt", retryCtx.RetryAttempt),
+						zap.Int("maxRetries", maxRetries),
+					)
+				}
+				return &adk.RetryDecision{Retry: true, RejectReason: "empty_model_output"}
+			}
+			return &adk.RetryDecision{}
+		},
+	}
+}
+
+func newEinoAgenticModelRetryConfig(
+	mw *config.MultiAgentEinoMiddlewareConfig,
+	logger *zap.Logger,
+	scope string,
+) *adk.TypedModelRetryConfig[*schema.AgenticMessage] {
+	maxRetries := RunRetryMaxAttemptsFromConfig(mw)
+	maxBackoff := einoRunRetryMaxBackoffFromConfig(mw)
+	return &adk.TypedModelRetryConfig[*schema.AgenticMessage]{
+		MaxRetries: maxRetries,
+		BackoffFunc: func(_ context.Context, attempt int) time.Duration {
+			return einoTransientRetryBackoff(attempt-1, maxBackoff)
+		},
+		ShouldRetry: func(ctx context.Context, retryCtx *adk.TypedRetryContext[*schema.AgenticMessage]) *adk.TypedRetryDecision[*schema.AgenticMessage] {
+			if retryCtx == nil || ctx.Err() != nil {
+				return &adk.TypedRetryDecision[*schema.AgenticMessage]{}
+			}
+			if retryCtx.Err != nil {
+				if !isEinoTransientRunError(retryCtx.Err) {
+					return &adk.TypedRetryDecision[*schema.AgenticMessage]{}
+				}
+				if logger != nil {
+					kind, summary := einoTransientRunErrorUserDetail(retryCtx.Err)
+					logger.Warn("eino native agentic model retry",
+						zap.String("scope", scope),
+						zap.Int("attempt", retryCtx.RetryAttempt),
+						zap.Int("maxRetries", maxRetries),
+						zap.String("errorKind", kind),
+						zap.String("errorSummary", summary),
+					)
+				}
+				return &adk.TypedRetryDecision[*schema.AgenticMessage]{Retry: true, RejectReason: "transient_model_error"}
+			}
+			if isRetryableEmptyAgenticModelOutput(retryCtx.OutputMessage) {
+				if logger != nil {
+					logger.Warn("eino native agentic model retry: empty model output",
+						zap.String("scope", scope),
+						zap.Int("attempt", retryCtx.RetryAttempt),
+						zap.Int("maxRetries", maxRetries),
+					)
+				}
+				return &adk.TypedRetryDecision[*schema.AgenticMessage]{Retry: true, RejectReason: "empty_model_output"}
+			}
+			return &adk.TypedRetryDecision[*schema.AgenticMessage]{}
+		},
+	}
+}
+
+func newEinoModelFailoverConfig(
+	ctx context.Context,
+	appCfg *config.Config,
+	mw *config.MultiAgentEinoMiddlewareConfig,
+	mode einoModelMode,
+	factory einoModelFactory,
+	logger *zap.Logger,
+	scope string,
+	progress func(eventType, message string, data interface{}),
+	orchestration string,
+	conversationID string,
+) (*adk.ModelFailoverConfig[*schema.Message], error) {
+	channels := resolveEinoFailoverChannels(appCfg, mw)
+	if len(channels) == 0 {
+		return nil, nil
+	}
+	if factory == nil {
+		return nil, fmt.Errorf("eino model failover: 模型工厂为空")
+	}
+
+	maxRetries := len(channels)
+	if mw != nil && mw.ModelFailoverMaxRetries > 0 && mw.ModelFailoverMaxRetries < maxRetries {
+		maxRetries = mw.ModelFailoverMaxRetries
+	}
+	channels = channels[:maxRetries]
+
+	cache := make(map[string]model.BaseModel[*schema.Message], len(channels))
+	var mu sync.Mutex
+	return &adk.ModelFailoverConfig[*schema.Message]{
+		MaxRetries: uint(maxRetries),
+		ShouldFailover: func(ctx context.Context, _ *schema.Message, err error) bool {
+			if ctx.Err() != nil || err == nil {
+				return false
+			}
+			err = unwrapEinoRetryExhausted(err)
+			return isEinoTransientRunError(err)
+		},
+		GetFailoverModel: func(ctx context.Context, failoverCtx *adk.FailoverContext[*schema.Message]) (model.BaseModel[*schema.Message], []*schema.Message, error) {
+			if failoverCtx == nil || failoverCtx.FailoverAttempt == 0 {
+				return nil, nil, fmt.Errorf("eino model failover: invalid failover attempt")
+			}
+			idx := int(failoverCtx.FailoverAttempt) - 1
+			if idx < 0 || idx >= len(channels) {
+				return nil, nil, fmt.Errorf("eino model failover: no channel for attempt %d", failoverCtx.FailoverAttempt)
+			}
+			ch := channels[idx]
+			mu.Lock()
+			cached := cache[ch.id]
+			mu.Unlock()
+			if cached != nil {
+				emitEinoModelFailoverEvent(progress, conversationID, orchestration, scope, ch.id, ch.cfg.Model, failoverCtx.FailoverAttempt)
+				if logger != nil {
+					logger.Warn("eino native model failover",
+						zap.String("scope", scope),
+						zap.String("channel", ch.id),
+						zap.String("model", ch.cfg.Model),
+						zap.Uint("attempt", failoverCtx.FailoverAttempt),
+					)
+				}
+				return cached, nil, nil
+			}
+			m, err := factory(ctx, ch.cfg, mode)
+			if err != nil {
+				return nil, nil, fmt.Errorf("eino model failover channel %q: %w", ch.id, err)
+			}
+			mu.Lock()
+			cache[ch.id] = m
+			mu.Unlock()
+			emitEinoModelFailoverEvent(progress, conversationID, orchestration, scope, ch.id, ch.cfg.Model, failoverCtx.FailoverAttempt)
+			if logger != nil {
+				logger.Warn("eino native model failover",
+					zap.String("scope", scope),
+					zap.String("channel", ch.id),
+					zap.String("model", ch.cfg.Model),
+					zap.Uint("attempt", failoverCtx.FailoverAttempt),
+				)
+			}
+			return m, nil, nil
+		},
+	}, nil
+}
+
+func newEinoAgenticModelFailoverConfig(
+	ctx context.Context,
+	appCfg *config.Config,
+	mw *config.MultiAgentEinoMiddlewareConfig,
+	mode einoModelMode,
+	factory einoAgenticModelConfigFactory,
+	logger *zap.Logger,
+	scope string,
+	progress func(eventType, message string, data interface{}),
+	orchestration string,
+	conversationID string,
+) (*adk.ModelFailoverConfig[*schema.AgenticMessage], error) {
+	channels := resolveEinoFailoverChannels(appCfg, mw)
+	if len(channels) == 0 {
+		return nil, nil
+	}
+	if factory == nil {
+		return nil, fmt.Errorf("eino agentic model failover: 模型工厂为空")
+	}
+
+	maxRetries := len(channels)
+	if mw != nil && mw.ModelFailoverMaxRetries > 0 && mw.ModelFailoverMaxRetries < maxRetries {
+		maxRetries = mw.ModelFailoverMaxRetries
+	}
+	channels = channels[:maxRetries]
+
+	cache := make(map[string]model.BaseModel[*schema.AgenticMessage], len(channels))
+	var mu sync.Mutex
+	return &adk.ModelFailoverConfig[*schema.AgenticMessage]{
+		MaxRetries: uint(maxRetries),
+		ShouldFailover: func(ctx context.Context, _ *schema.AgenticMessage, err error) bool {
+			if ctx.Err() != nil || err == nil {
+				return false
+			}
+			err = unwrapEinoRetryExhausted(err)
+			return isEinoTransientRunError(err)
+		},
+		GetFailoverModel: func(ctx context.Context, failoverCtx *adk.FailoverContext[*schema.AgenticMessage]) (model.BaseModel[*schema.AgenticMessage], []*schema.AgenticMessage, error) {
+			if failoverCtx == nil || failoverCtx.FailoverAttempt == 0 {
+				return nil, nil, fmt.Errorf("eino agentic model failover: invalid failover attempt")
+			}
+			idx := int(failoverCtx.FailoverAttempt) - 1
+			if idx < 0 || idx >= len(channels) {
+				return nil, nil, fmt.Errorf("eino agentic model failover: no channel for attempt %d", failoverCtx.FailoverAttempt)
+			}
+			ch := channels[idx]
+			mu.Lock()
+			cached := cache[ch.id]
+			mu.Unlock()
+			if cached != nil {
+				emitEinoModelFailoverEvent(progress, conversationID, orchestration, scope, ch.id, ch.cfg.Model, failoverCtx.FailoverAttempt)
+				if logger != nil {
+					logger.Warn("eino native agentic model failover",
+						zap.String("scope", scope),
+						zap.String("channel", ch.id),
+						zap.String("model", ch.cfg.Model),
+						zap.Uint("attempt", failoverCtx.FailoverAttempt),
+					)
+				}
+				return cached, nil, nil
+			}
+			m, err := factory(ctx, ch.cfg, mode)
+			if err != nil {
+				return nil, nil, fmt.Errorf("eino agentic model failover channel %q: %w", ch.id, err)
+			}
+			mu.Lock()
+			cache[ch.id] = m
+			mu.Unlock()
+			emitEinoModelFailoverEvent(progress, conversationID, orchestration, scope, ch.id, ch.cfg.Model, failoverCtx.FailoverAttempt)
+			if logger != nil {
+				logger.Warn("eino native agentic model failover",
+					zap.String("scope", scope),
+					zap.String("channel", ch.id),
+					zap.String("model", ch.cfg.Model),
+					zap.Uint("attempt", failoverCtx.FailoverAttempt),
+				)
+			}
+			return m, nil, nil
+		},
+	}, nil
+}
+
+type resolvedEinoFailoverChannel struct {
+	id  string
+	cfg config.OpenAIConfig
+}
+
+func resolveEinoFailoverChannels(appCfg *config.Config, mw *config.MultiAgentEinoMiddlewareConfig) []resolvedEinoFailoverChannel {
+	if appCfg == nil || mw == nil || len(mw.ModelFailoverChannels) == 0 {
+		return nil
+	}
+	primary := appCfg.OpenAI
+	seen := map[string]struct{}{}
+	out := make([]resolvedEinoFailoverChannel, 0, len(mw.ModelFailoverChannels))
+	for _, raw := range mw.ModelFailoverChannels {
+		id := config.NormalizeAIChannelID(raw)
+		if id == "" {
+			continue
+		}
+		if _, ok := seen[id]; ok {
+			continue
+		}
+		oa, resolvedID, ok := appCfg.AI.ResolveChannel(id)
+		if !ok {
+			continue
+		}
+		if sameOpenAIModelEndpoint(primary, oa) {
+			continue
+		}
+		seen[resolvedID] = struct{}{}
+		out = append(out, resolvedEinoFailoverChannel{id: resolvedID, cfg: oa})
+	}
+	return out
+}
+
+func sameOpenAIModelEndpoint(a, b config.OpenAIConfig) bool {
+	return strings.EqualFold(strings.TrimSpace(a.Provider), strings.TrimSpace(b.Provider)) &&
+		strings.TrimRight(strings.TrimSpace(a.BaseURL), "/") == strings.TrimRight(strings.TrimSpace(b.BaseURL), "/") &&
+		strings.TrimSpace(a.APIKey) == strings.TrimSpace(b.APIKey) &&
+		strings.TrimSpace(a.Model) == strings.TrimSpace(b.Model)
+}
+
+func isRetryableEmptyModelOutput(msg *schema.Message) bool {
+	if msg == nil {
+		return true
+	}
+	return strings.TrimSpace(msg.Content) == "" &&
+		strings.TrimSpace(msg.ReasoningContent) == "" &&
+		len(msg.ToolCalls) == 0 &&
+		len(msg.MultiContent) == 0 &&
+		len(msg.UserInputMultiContent) == 0 &&
+		len(msg.AssistantGenMultiContent) == 0
+}
+
+func isRetryableEmptyAgenticModelOutput(msg *schema.AgenticMessage) bool {
+	if msg == nil {
+		return true
+	}
+	for _, block := range msg.ContentBlocks {
+		if block == nil {
+			continue
+		}
+		switch {
+		case block.Reasoning != nil:
+			if strings.TrimSpace(block.Reasoning.Text) != "" {
+				return false
+			}
+		case block.UserInputText != nil:
+			if strings.TrimSpace(block.UserInputText.Text) != "" {
+				return false
+			}
+		case block.AssistantGenText != nil:
+			if strings.TrimSpace(block.AssistantGenText.Text) != "" {
+				return false
+			}
+		default:
+			return false
+		}
+	}
+	return true
+}
+
+func unwrapEinoRetryExhausted(err error) error {
+	var retryErr *adk.RetryExhaustedError
+	if errors.As(err, &retryErr) && retryErr.LastErr != nil {
+		return retryErr.LastErr
+	}
+	return err
+}
+
+func isEinoNativeWillRetry(err error) (*adk.WillRetryError, bool) {
+	var willRetry *adk.WillRetryError
+	if errors.As(err, &willRetry) {
+		return willRetry, true
+	}
+	return nil, false
+}
+
+func emitEinoModelFailoverEvent(
+	progress func(eventType, message string, data interface{}),
+	conversationID, orchestration, scope, channelID, modelName string,
+	attempt uint,
+) {
+	if progress == nil {
+		return
+	}
+	msg := fmt.Sprintf("主模型重试耗尽，正在切换备用模型 %s。", modelName)
+	progress("eino_model_failover", msg, map[string]interface{}{
+		"conversationId": conversationID,
+		"source":         "eino",
+		"orchestration":  orchestration,
+		"scope":          scope,
+		"channel":        channelID,
+		"model":          modelName,
+		"attempt":        attempt,
+	})
+}

internal/multiagent/eino_model_resilience_test.go

@@ -0,0 +1,376 @@
+package multiagent
+
+import (
+	"context"
+	"errors"
+	"testing"
+	"time"
+
+	"cyberstrike-ai/internal/config"
+
+	"github.com/cloudwego/eino/adk"
+	"github.com/cloudwego/eino/components/model"
+	"github.com/cloudwego/eino/schema"
+)
+
+func TestNewEinoModelRetryConfigUsesNativeFieldsFirst(t *testing.T) {
+	t.Parallel()
+	mw := &config.MultiAgentEinoMiddlewareConfig{
+		ModelRetryMaxRetries:    2,
+		ModelRetryMaxBackoffSec: 7,
+		RunRetryMaxAttempts:     9,
+		RunRetryMaxBackoffSec:   11,
+	}
+	cfg := newEinoModelRetryConfig(mw, nil, "test")
+	if cfg.MaxRetries != 2 {
+		t.Fatalf("MaxRetries = %d, want 2", cfg.MaxRetries)
+	}
+	backoff := cfg.BackoffFunc(context.Background(), 1)
+	if backoff < 500*time.Millisecond || backoff > 2*time.Second {
+		t.Fatalf("attempt 1 backoff = %v, want first equal-jitter window", backoff)
+	}
+	if got := einoRunRetryMaxBackoffFromConfig(mw); got != 7*time.Second {
+		t.Fatalf("backoff from config = %v, want 7s", got)
+	}
+}
+
+func TestEinoModelRetryPolicyRetriesTransientAndEmptyOutput(t *testing.T) {
+	t.Parallel()
+	cfg := newEinoModelRetryConfig(&config.MultiAgentEinoMiddlewareConfig{ModelRetryMaxRetries: 1}, nil, "test")
+	if got := cfg.ShouldRetry(context.Background(), &adk.RetryContext{Err: errors.New("HTTP 429 Too Many Requests")}); got == nil || !got.Retry {
+		t.Fatal("transient model error should retry")
+	}
+	if got := cfg.ShouldRetry(context.Background(), &adk.RetryContext{OutputMessage: schema.AssistantMessage("", nil)}); got == nil || !got.Retry {
+		t.Fatal("empty assistant output should retry")
+	}
+	if got := cfg.ShouldRetry(context.Background(), &adk.RetryContext{OutputMessage: schema.AssistantMessage("", []schema.ToolCall{{ID: "call_1"}})}); got == nil || got.Retry {
+		t.Fatal("assistant tool call output should not be treated as empty")
+	}
+	if got := cfg.ShouldRetry(context.Background(), &adk.RetryContext{Err: errors.New("invalid api key")}); got == nil || got.Retry {
+		t.Fatal("permanent auth error should not retry")
+	}
+}
+
+func TestEinoAgenticModelRetryPolicyRetriesTransientAndEmptyOutput(t *testing.T) {
+	t.Parallel()
+	cfg := newEinoAgenticModelRetryConfig(&config.MultiAgentEinoMiddlewareConfig{ModelRetryMaxRetries: 1}, nil, "agentic")
+	if got := cfg.ShouldRetry(context.Background(), &adk.TypedRetryContext[*schema.AgenticMessage]{Err: errors.New("HTTP 429 Too Many Requests")}); got == nil || !got.Retry {
+		t.Fatal("transient agentic model error should retry")
+	}
+	if got := cfg.ShouldRetry(context.Background(), &adk.TypedRetryContext[*schema.AgenticMessage]{
+		OutputMessage: &schema.AgenticMessage{Role: schema.AgenticRoleTypeAssistant},
+	}); got == nil || !got.Retry {
+		t.Fatal("empty agentic assistant output should retry")
+	}
+	if got := cfg.ShouldRetry(context.Background(), &adk.TypedRetryContext[*schema.AgenticMessage]{
+		OutputMessage: &schema.AgenticMessage{
+			Role:          schema.AgenticRoleTypeAssistant,
+			ContentBlocks: []*schema.ContentBlock{schema.NewContentBlock(&schema.AssistantGenText{Text: "ok"})},
+		},
+	}); got == nil || got.Retry {
+		t.Fatal("agentic assistant text should not be treated as empty")
+	}
+	if got := cfg.ShouldRetry(context.Background(), &adk.TypedRetryContext[*schema.AgenticMessage]{
+		OutputMessage: &schema.AgenticMessage{
+			Role: schema.AgenticRoleTypeAssistant,
+			ContentBlocks: []*schema.ContentBlock{schema.NewContentBlock(&schema.FunctionToolCall{
+				CallID: "call_1", Name: "search", Arguments: `{"q":"x"}`,
+			})},
+		},
+	}); got == nil || got.Retry {
+		t.Fatal("agentic tool call output should not be treated as empty")
+	}
+	if got := cfg.ShouldRetry(context.Background(), &adk.TypedRetryContext[*schema.AgenticMessage]{Err: errors.New("invalid api key")}); got == nil || got.Retry {
+		t.Fatal("permanent auth error should not retry")
+	}
+}
+
+func TestResolveEinoFailoverChannelsSkipsPrimaryDuplicateAndUnknown(t *testing.T) {
+	t.Parallel()
+	appCfg := &config.Config{
+		OpenAI: config.OpenAIConfig{Provider: "openai", APIKey: "k1", BaseURL: "https://api.example/v1", Model: "primary"},
+		AI: config.AIConfig{Channels: map[string]config.AIChannelConfig{
+			"same": {Provider: "openai", APIKey: "k1", BaseURL: "https://api.example/v1", Model: "primary"},
+			"fb1":  {Provider: "openai", APIKey: "k2", BaseURL: "https://api.example/v1", Model: "fallback-1"},
+			"fb2":  {Provider: "claude", APIKey: "k3", BaseURL: "https://api.anthropic.com/v1", Model: "claude-sonnet"},
+		}},
+	}
+	got := resolveEinoFailoverChannels(appCfg, &config.MultiAgentEinoMiddlewareConfig{
+		ModelFailoverChannels:   []string{"same", "missing", "fb1", "fb1", "fb2"},
+		ModelFailoverMaxRetries: 1,
+	})
+	if len(got) != 2 {
+		t.Fatalf("resolved channels len = %d, want 2 before max cap is applied by config builder", len(got))
+	}
+	if got[0].id != "fb1" || got[1].id != "fb2" {
+		t.Fatalf("resolved channel order = %#v", got)
+	}
+}
+
+func TestNewEinoModelFailoverConfigBuildsDistinctFallbackModel(t *testing.T) {
+	t.Parallel()
+	appCfg := &config.Config{
+		OpenAI: config.OpenAIConfig{APIKey: "k1", BaseURL: "https://api.example/v1", Model: "primary"},
+		AI: config.AIConfig{Channels: map[string]config.AIChannelConfig{
+			"fb1": {APIKey: "k2", BaseURL: "https://api.example/v1", Model: "fallback-1"},
+			"fb2": {APIKey: "k3", BaseURL: "https://api.example/v1", Model: "fallback-2"},
+		}},
+	}
+	var built []string
+	cfg, err := newEinoModelFailoverConfig(
+		context.Background(),
+		appCfg,
+		&config.MultiAgentEinoMiddlewareConfig{
+			ModelFailoverChannels:   []string{"fb1", "fb2"},
+			ModelFailoverMaxRetries: 1,
+		},
+		einoModelModeNormal,
+		func(_ context.Context, oa config.OpenAIConfig, _ einoModelMode) (model.ToolCallingChatModel, error) {
+			built = append(built, oa.Model)
+			return &streamToolCallIndexFakeModel{}, nil
+		},
+		nil,
+		"test",
+		nil,
+		"deep",
+		"conv-1",
+	)
+	if err != nil {
+		t.Fatalf("newEinoModelFailoverConfig: %v", err)
+	}
+	if cfg == nil || cfg.MaxRetries != 1 {
+		t.Fatalf("failover cfg = %#v, want max retries 1", cfg)
+	}
+	m, msgs, err := cfg.GetFailoverModel(context.Background(), &adk.FailoverContext[*schema.Message]{FailoverAttempt: 1})
+	if err != nil || m == nil || msgs != nil {
+		t.Fatalf("GetFailoverModel = (%v, %v, %v)", m, msgs, err)
+	}
+	if len(built) != 1 || built[0] != "fallback-1" {
+		t.Fatalf("built models = %v, want [fallback-1]", built)
+	}
+	if !cfg.ShouldFailover(context.Background(), nil, &adk.RetryExhaustedError{LastErr: errors.New("upstream returned 503"), TotalRetries: 4}) {
+		t.Fatal("retry-exhausted transient error should fail over")
+	}
+	if cfg.ShouldFailover(context.Background(), nil, &adk.RetryExhaustedError{LastErr: errors.New("invalid api key"), TotalRetries: 4}) {
+		t.Fatal("retry-exhausted permanent error should not fail over")
+	}
+}
+
+func TestNewEinoModelFailoverConfigEmitsProgressEvent(t *testing.T) {
+	t.Parallel()
+	appCfg := &config.Config{
+		OpenAI: config.OpenAIConfig{APIKey: "k1", BaseURL: "https://api.example/v1", Model: "primary"},
+		AI: config.AIConfig{Channels: map[string]config.AIChannelConfig{
+			"fb1": {APIKey: "k2", BaseURL: "https://api.example/v1", Model: "fallback-1"},
+		}},
+	}
+	var events []struct {
+		eventType string
+		message   string
+		data      interface{}
+	}
+	cfg, err := newEinoModelFailoverConfig(
+		context.Background(),
+		appCfg,
+		&config.MultiAgentEinoMiddlewareConfig{ModelFailoverChannels: []string{"fb1"}},
+		einoModelModeNormal,
+		func(_ context.Context, _ config.OpenAIConfig, _ einoModelMode) (model.ToolCallingChatModel, error) {
+			return &streamToolCallIndexFakeModel{}, nil
+		},
+		nil,
+		"test",
+		func(eventType, message string, data interface{}) {
+			events = append(events, struct {
+				eventType string
+				message   string
+				data      interface{}
+			}{eventType: eventType, message: message, data: data})
+		},
+		"deep",
+		"conv-1",
+	)
+	if err != nil {
+		t.Fatalf("newEinoModelFailoverConfig: %v", err)
+	}
+	if _, _, err := cfg.GetFailoverModel(context.Background(), &adk.FailoverContext[*schema.Message]{FailoverAttempt: 1}); err != nil {
+		t.Fatalf("GetFailoverModel: %v", err)
+	}
+	if len(events) != 1 || events[0].eventType != "eino_model_failover" {
+		t.Fatalf("events = %#v, want one eino_model_failover", events)
+	}
+	payload, ok := events[0].data.(map[string]interface{})
+	if !ok {
+		t.Fatalf("event payload type = %T", events[0].data)
+	}
+	if payload["conversationId"] != "conv-1" || payload["orchestration"] != "deep" || payload["channel"] != "fb1" || payload["model"] != "fallback-1" {
+		t.Fatalf("payload = %#v", payload)
+	}
+}
+
+func TestNewEinoAgenticModelFailoverConfigBuildsDistinctFallbackModel(t *testing.T) {
+	t.Parallel()
+	appCfg := &config.Config{
+		OpenAI: config.OpenAIConfig{Provider: "openai", APIKey: "k1", BaseURL: "https://api.example/v1", Model: "primary"},
+		AI: config.AIConfig{Channels: map[string]config.AIChannelConfig{
+			"fb1": {Provider: "openai", APIKey: "k2", BaseURL: "https://api.example/v1", Model: "fallback-1"},
+			"fb2": {Provider: "openai", APIKey: "k3", BaseURL: "https://api.example/v1", Model: "fallback-2"},
+		}},
+	}
+	var built []string
+	cfg, err := newEinoAgenticModelFailoverConfig(
+		context.Background(),
+		appCfg,
+		&config.MultiAgentEinoMiddlewareConfig{
+			ModelFailoverChannels:   []string{"fb1", "fb2"},
+			ModelFailoverMaxRetries: 1,
+		},
+		einoModelModeNormal,
+		func(_ context.Context, oa config.OpenAIConfig, _ einoModelMode) (model.AgenticModel, error) {
+			built = append(built, oa.Model)
+			return &fakeAgenticGateModel{}, nil
+		},
+		nil,
+		"agentic",
+		nil,
+		"eino_single_agentic",
+		"conv-1",
+	)
+	if err != nil {
+		t.Fatalf("newEinoAgenticModelFailoverConfig: %v", err)
+	}
+	if cfg == nil || cfg.MaxRetries != 1 {
+		t.Fatalf("agentic failover cfg = %#v, want max retries 1", cfg)
+	}
+	m, msgs, err := cfg.GetFailoverModel(context.Background(), &adk.FailoverContext[*schema.AgenticMessage]{FailoverAttempt: 1})
+	if err != nil || m == nil || msgs != nil {
+		t.Fatalf("GetFailoverModel = (%v, %v, %v)", m, msgs, err)
+	}
+	if len(built) != 1 || built[0] != "fallback-1" {
+		t.Fatalf("built models = %v, want [fallback-1]", built)
+	}
+	if !cfg.ShouldFailover(context.Background(), nil, &adk.RetryExhaustedError{LastErr: errors.New("upstream returned 503"), TotalRetries: 4}) {
+		t.Fatal("retry-exhausted transient agentic error should fail over")
+	}
+	if cfg.ShouldFailover(context.Background(), nil, &adk.RetryExhaustedError{LastErr: errors.New("invalid api key"), TotalRetries: 4}) {
+		t.Fatal("retry-exhausted permanent agentic error should not fail over")
+	}
+}
+
+func TestNewEinoAgenticModelFailoverConfigEmitsProgressEvent(t *testing.T) {
+	t.Parallel()
+	appCfg := &config.Config{
+		OpenAI: config.OpenAIConfig{Provider: "openai", APIKey: "k1", BaseURL: "https://api.example/v1", Model: "primary"},
+		AI: config.AIConfig{Channels: map[string]config.AIChannelConfig{
+			"fb1": {Provider: "openai", APIKey: "k2", BaseURL: "https://api.example/v1", Model: "fallback-1"},
+		}},
+	}
+	var events []struct {
+		eventType string
+		message   string
+		data      interface{}
+	}
+	cfg, err := newEinoAgenticModelFailoverConfig(
+		context.Background(),
+		appCfg,
+		&config.MultiAgentEinoMiddlewareConfig{ModelFailoverChannels: []string{"fb1"}},
+		einoModelModeNormal,
+		func(_ context.Context, _ config.OpenAIConfig, _ einoModelMode) (model.AgenticModel, error) {
+			return &fakeAgenticGateModel{}, nil
+		},
+		nil,
+		"agentic",
+		func(eventType, message string, data interface{}) {
+			events = append(events, struct {
+				eventType string
+				message   string
+				data      interface{}
+			}{eventType: eventType, message: message, data: data})
+		},
+		"eino_single_agentic",
+		"conv-1",
+	)
+	if err != nil {
+		t.Fatalf("newEinoAgenticModelFailoverConfig: %v", err)
+	}
+	if _, _, err := cfg.GetFailoverModel(context.Background(), &adk.FailoverContext[*schema.AgenticMessage]{FailoverAttempt: 1}); err != nil {
+		t.Fatalf("GetFailoverModel: %v", err)
+	}
+	if len(events) != 1 || events[0].eventType != "eino_model_failover" {
+		t.Fatalf("events = %#v, want one eino_model_failover", events)
+	}
+	payload, ok := events[0].data.(map[string]interface{})
+	if !ok {
+		t.Fatalf("event payload type = %T", events[0].data)
+	}
+	if payload["conversationId"] != "conv-1" || payload["orchestration"] != "eino_single_agentic" || payload["channel"] != "fb1" || payload["model"] != "fallback-1" {
+		t.Fatalf("payload = %#v", payload)
+	}
+}
+
+func TestNewEinoOpenAIAgenticChatModelFactoryBuildsBackend(t *testing.T) {
+	t.Parallel()
+	factory := newEinoOpenAIAgenticChatModelFactory(newEinoBaseHTTPClient(), nil, nil)
+	m, err := factory(context.Background(), config.OpenAIConfig{
+		Provider: "openai",
+		APIKey:   "test-key",
+		BaseURL:  "https://api.example/v1",
+		Model:    "gpt-4o-mini",
+		Reasoning: config.OpenAIReasoningConfig{
+			Profile: "openai_compat",
+			Mode:    "on",
+			Effort:  "high",
+		},
+	}, einoModelModeNormal)
+	if err != nil {
+		t.Fatalf("agentic factory: %v", err)
+	}
+	if m == nil {
+		t.Fatal("agentic factory returned nil model")
+	}
+	gate := evaluateEinoAgenticModelGate(agenticModelGateFactory(factory, config.OpenAIConfig{
+		Provider: "openai",
+		APIKey:   "test-key",
+		BaseURL:  "https://api.example/v1",
+		Model:    "gpt-4o-mini",
+	}, einoModelModeNormal), einoAgenticRuntimeSupportV0914())
+	if !gate.Ready {
+		t.Fatalf("gate = %#v, want ready with buildable agentic backend", gate)
+	}
+}
+
+func TestNewEinoOpenAIAgenticChatModelFactoryRejectsUnsupportedProvider(t *testing.T) {
+	t.Parallel()
+	factory := newEinoOpenAIAgenticChatModelFactory(newEinoBaseHTTPClient(), nil, nil)
+	if _, err := factory(context.Background(), config.OpenAIConfig{
+		Provider: "claude",
+		APIKey:   "test-key",
+		BaseURL:  "https://api.anthropic.com/v1",
+		Model:    "claude-sonnet-4",
+	}, einoModelModeNormal); err == nil {
+		t.Fatal("expected unsupported provider error")
+	}
+	gate := evaluateEinoAgenticModelGate(agenticModelGateFactory(factory, config.OpenAIConfig{
+		Provider: "claude",
+		APIKey:   "test-key",
+		BaseURL:  "https://api.anthropic.com/v1",
+		Model:    "claude-sonnet-4",
+	}, einoModelModeNormal), einoAgenticRuntimeSupportV0914())
+	if gate.Ready || !containsString(gate.Missing, "model.AgenticModel backend") {
+		t.Fatalf("gate = %#v, want backend missing for unsupported provider", gate)
+	}
+}
+
+func TestEinoNativeRetryErrorsDoNotTriggerRunLevelTransientRetry(t *testing.T) {
+	t.Parallel()
+	err := &adk.WillRetryError{ErrStr: "HTTP 429 Too Many Requests", RetryAttempt: 1}
+	if isEinoTransientRunError(err) {
+		t.Fatal("WillRetryError should be observed, not treated as a run-level transient failure")
+	}
+	exhausted := &adk.RetryExhaustedError{LastErr: errors.New("HTTP 429 Too Many Requests"), TotalRetries: 4}
+	if isEinoTransientRunError(exhausted) {
+		t.Fatal("RetryExhaustedError should not trigger a second run-level retry layer")
+	}
+	if got := unwrapEinoRetryExhausted(exhausted); got == exhausted {
+		t.Fatal("unwrapEinoRetryExhausted should return the underlying model error")
+	}
+}

internal/multiagent/eino_native_cancel_test.go

@@ -0,0 +1,27 @@
+package multiagent
+
+import (
+	"context"
+	"testing"
+)
+
+func TestEinoNativeCancelOptionsByCause(t *testing.T) {
+	fullStopOpts, fullStopWait := einoNativeCancelOptions(context.Canceled)
+	if len(fullStopOpts) != 2 {
+		t.Fatalf("full stop options: got %d want 2", len(fullStopOpts))
+	}
+	if fullStopWait != einoNativeCancelImmediateWait {
+		t.Fatalf("full stop wait: got %v want %v", fullStopWait, einoNativeCancelImmediateWait)
+	}
+
+	interruptOpts, interruptWait := einoNativeCancelOptions(ErrInterruptContinue)
+	if len(interruptOpts) != 3 {
+		t.Fatalf("interrupt options: got %d want 3", len(interruptOpts))
+	}
+	if interruptWait != einoNativeCancelSafePointWait {
+		t.Fatalf("interrupt wait: got %v want %v", interruptWait, einoNativeCancelSafePointWait)
+	}
+	if interruptWait <= einoNativeCancelSafePointTTL {
+		t.Fatalf("interrupt wait must allow the Eino safe-point timeout to elapse: wait=%v ttl=%v", interruptWait, einoNativeCancelSafePointTTL)
+	}
+}