refactor: change pointer receivers to value types for Conversation and UserMessage in various structs and functions

internal/ai/application/runtime/prepare_service.go

@@ -18,9 +18,6 @@ type prepareService struct {
 }
 
 func (s *prepareService) selectSkill(ctx context.Context, req Request) (*models.SkillDefinition, string, string, error) {
-	if req.UserMessage == nil || req.Conversation == nil {
-		return nil, "", "", nil
-	}
 	result, err := skills.Select(ctx, skills.RuntimeContext{
 		AIAgent:         req.AIAgent,
 		AIConfig:        req.AIConfig,

internal/ai/application/runtime/types.go

@@ -6,8 +6,8 @@ import (
 )
 
 type Request struct {
-	Conversation     *models.Conversation
+	Conversation     models.Conversation
-	UserMessage      *models.Message
+	UserMessage      models.Message
 	AIAgent          models.AIAgent
 	AIConfig         models.AIConfig
 	ManualSkillCode  string
@@ -19,7 +19,7 @@ type Request struct {
 }
 
 type ResumeRequest struct {
-	Conversation *models.Conversation
+	Conversation models.Conversation
 	AIAgent      models.AIAgent
 	AIConfig     models.AIConfig
 	CheckPointID string

internal/ai/runtime/debug_run.go

@@ -28,21 +28,22 @@ func DebugRunSkill(ctx context.Context, req request.SkillDebugRunRequest) (*resp
 	if aiConfig == nil {
 		return nil, errorsx.InvalidParam("AI Agent关联的AI配置不存在")
 	}
-	conversation := &models.Conversation{ID: req.ConversationID, AIAgentID: req.AIAgentID}
+	var conversation *models.Conversation
 	if req.ConversationID > 0 {
-		conversation = svc.ConversationService.Get(req.ConversationID)
+		if conversation = svc.ConversationService.Get(req.ConversationID); conversation == nil {
-		if conversation == nil {
 			return nil, errorsx.InvalidParam("会话不存在")
 		}
+	} else {
+		conversation = &models.Conversation{ID: req.ConversationID, AIAgentID: req.AIAgentID}
 	}
-	message := &models.Message{
+	message := models.Message{
 		ConversationID: req.ConversationID,
 		SenderType:     enums.IMSenderTypeCustomer,
 		MessageType:    enums.IMMessageTypeText,
 		Content:        strings.TrimSpace(req.UserMessage),
 	}
 	summary, err := Service.Run(ctx, applicationruntime.Request{
-		Conversation:    conversation,
+		Conversation:    *conversation,
 		UserMessage:     message,
 		AIAgent:         *aiAgent,
 		AIConfig:        *aiConfig,
@@ -90,7 +91,7 @@ func DebugResumeSkill(ctx context.Context, req request.SkillDebugResumeRequest)
 	}
 	resumeText := strings.TrimSpace(req.UserMessage)
 	summary, err := Service.Resume(ctx, applicationruntime.ResumeRequest{
-		Conversation: conversation,
+		Conversation: *conversation,
 		AIAgent:      *aiAgent,
 		AIConfig:     *aiConfig,
 		CheckPointID: strings.TrimSpace(req.CheckPointID),

internal/ai/runtime/executor/context_builders.go

@@ -13,9 +13,6 @@ import (
 )
 
 func buildRunMessages(ctx context.Context, req RunInput, summary *RunResult, collector *callbacks.RuntimeTraceCollector) []*schema.Message {
-	if req.Conversation == nil || req.UserMessage == nil {
-		return nil
-	}
 	history := adapter.BuildHistoryMessages(req.Conversation.ID, req.UserMessage.ID, 12)
 	if summary != nil {
 		summary.HistoryMessageCount = len(history.Messages)
@@ -39,7 +36,7 @@ func buildRunMessages(ctx context.Context, req RunInput, summary *RunResult, col
 }
 
 func appendRetrievedContext(ctx context.Context, req RunInput, summary *RunResult, collector *callbacks.RuntimeTraceCollector, messages *[]*schema.Message) knowledgeGuardDecision {
-	if req.UserMessage == nil || messages == nil {
+	if messages == nil {
 		return knowledgeGuardDecision{}
 	}
 	retriever := retrievers.NewKnowledgeRetriever(req.AIAgent)

internal/ai/runtime/executor/service.go

@@ -33,16 +33,6 @@ func (s *Service) ExecuteRun(ctx context.Context, req RunInput) (*RunResult, err
 	}
 	collector := callbacks.NewRuntimeTraceCollector()
 	collector.Data.RunID = summary.RunID
-	if req.Conversation == nil || req.UserMessage == nil {
-		summary.Status = "error"
-		summary.ErrorMessage = "invalid runtime request"
-		collector.Data.Status = summary.Status
-		collector.Data.Error.Message = summary.ErrorMessage
-		collector.Data.Error.Stage = "prepare"
-		summary.TraceData = collector.Marshal()
-		return summary, fmt.Errorf("%s", summary.ErrorMessage)
-	}
-
 	toolDefs, err := factory.NewToolFactory().BuildMCPTools(req.AIAgent)
 	if err != nil {
 		summary.Status = "error"

internal/ai/runtime/executor/types.go

@@ -6,8 +6,8 @@ import (
 )
 
 type RunInput struct {
-	Conversation     *models.Conversation
+	Conversation     models.Conversation
-	UserMessage      *models.Message
+	UserMessage      models.Message
 	AIAgent          models.AIAgent
 	AIConfig         models.AIConfig
 	SelectedSkill    *models.SkillDefinition
@@ -18,7 +18,7 @@ type RunInput struct {
 }
 
 type ResumeInput struct {
-	Conversation *models.Conversation
+	Conversation models.Conversation
 	AIAgent      models.AIAgent
 	AIConfig     models.AIConfig
 	CheckPointID string

internal/ai/runtime/graphs/analyze_conversation_graph.go

@@ -30,17 +30,14 @@ type AnalyzeConversationResult struct {
 }
 
 type AnalyzeConversationGraph struct {
-	conversation *models.Conversation
+	conversation models.Conversation
 }
 
-func NewAnalyzeConversationGraph(conversation *models.Conversation) *AnalyzeConversationGraph {
+func NewAnalyzeConversationGraph(conversation models.Conversation) *AnalyzeConversationGraph {
 	return &AnalyzeConversationGraph{conversation: conversation}
 }
 
 func (g *AnalyzeConversationGraph) Run(_ context.Context, argumentsInJSON string) (string, error) {
-	if g == nil || g.conversation == nil {
-		return "", fmt.Errorf("analyze conversation graph not initialized")
-	}
 	input, err := g.parseInput(argumentsInJSON)
 	if err != nil {
 		return "", err
@@ -68,7 +65,7 @@ func (g *AnalyzeConversationGraph) parseInput(argumentsInJSON string) (AnalyzeCo
 	return input, nil
 }
 
-func buildAnalyzeConversationResult(conversation *models.Conversation, messages []models.Message, input AnalyzeConversationInput) AnalyzeConversationResult {
+func buildAnalyzeConversationResult(conversation models.Conversation, messages []models.Message, input AnalyzeConversationInput) AnalyzeConversationResult {
 	joined := strings.ToLower(buildConversationCorpus(conversation, messages, input))
 	signals := collectRiskSignals(joined, input)
 	intent := detectUserIntent(joined, input)
@@ -85,14 +82,14 @@ func buildAnalyzeConversationResult(conversation *models.Conversation, messages
 	return result
 }
 
-func buildConversationSummary(conversation *models.Conversation, messages []models.Message, input AnalyzeConversationInput) string {
+func buildConversationSummary(conversation models.Conversation, messages []models.Message, input AnalyzeConversationInput) string {
 	parts := make([]string, 0, 4)
-	if conversation != nil && strings.TrimSpace(conversation.Subject) != "" {
+	if strings.TrimSpace(conversation.Subject) != "" {
 		parts = append(parts, "会话主题："+strings.TrimSpace(conversation.Subject))
 	}
 	if input.ObservedIssue != "" {
 		parts = append(parts, "当前问题："+input.ObservedIssue)
-	} else if conversation != nil && strings.TrimSpace(conversation.LastMessageSummary) != "" {
+	} else if strings.TrimSpace(conversation.LastMessageSummary) != "" {
 		parts = append(parts, "当前问题："+strings.TrimSpace(conversation.LastMessageSummary))
 	}
 	if digest := buildRecentMessageDigest(messages); digest != "" {
@@ -104,12 +101,10 @@ func buildConversationSummary(conversation *models.Conversation, messages []mode
 	return strings.TrimSpace(strings.Join(parts, "\n"))
 }
 
-func buildConversationCorpus(conversation *models.Conversation, messages []models.Message, input AnalyzeConversationInput) string {
+func buildConversationCorpus(conversation models.Conversation, messages []models.Message, input AnalyzeConversationInput) string {
 	parts := make([]string, 0, len(messages)+4)
-	if conversation != nil {
 	parts = append(parts, strings.TrimSpace(conversation.Subject))
 	parts = append(parts, strings.TrimSpace(conversation.LastMessageSummary))
-	}
 	parts = append(parts, input.Goal, input.ObservedIssue, input.AdditionalContext)
 	for i := range messages {
 		parts = append(parts, strings.TrimSpace(messages[i].Content))
@@ -203,12 +198,12 @@ func recommendQuestions(intent string, signals []string, input AnalyzeConversati
 	return questions
 }
 
-func buildConversationAnalysisFacts(conversation *models.Conversation, messages []models.Message) []string {
+func buildConversationAnalysisFacts(conversation models.Conversation, messages []models.Message) []string {
 	facts := make([]string, 0, 4)
-	if conversation != nil && strings.TrimSpace(conversation.Subject) != "" {
+	if strings.TrimSpace(conversation.Subject) != "" {
 		facts = append(facts, "会话主题："+strings.TrimSpace(conversation.Subject))
 	}
-	if conversation != nil && strings.TrimSpace(conversation.LastMessageSummary) != "" {
+	if strings.TrimSpace(conversation.LastMessageSummary) != "" {
 		facts = append(facts, "最近摘要："+strings.TrimSpace(conversation.LastMessageSummary))
 	}
 	if digest := buildRecentMessageDigest(messages); digest != "" {

internal/ai/runtime/graphs/analyze_conversation_graph_test.go

@@ -8,7 +8,7 @@ import (
 )
 
 func TestBuildAnalyzeConversationResult_RecommendsHandoffForComplaint(t *testing.T) {
-	conversation := &models.Conversation{
+	conversation := models.Conversation{
 		Subject:            "用户投诉扣费异常",
 		LastMessageSummary: "用户反馈被重复扣费，并要求人工处理",
 	}
@@ -32,7 +32,7 @@ func TestBuildAnalyzeConversationResult_RecommendsHandoffForComplaint(t *testing
 }
 
 func TestBuildAnalyzeConversationResult_RecommendsPrepareTicket(t *testing.T) {
-	conversation := &models.Conversation{
+	conversation := models.Conversation{
 		Subject:            "订单无法支付",
 		LastMessageSummary: "用户要求登记问题并尽快处理",
 	}

internal/ai/runtime/graphs/create_ticket_graph.go

@@ -37,11 +37,11 @@ func init() {
 }
 
 type CreateTicketGraph struct {
-	conversation *models.Conversation
+	conversation models.Conversation
 	aiAgent      models.AIAgent
 }
 
-func NewCreateTicketGraph(conversation *models.Conversation, aiAgent models.AIAgent) *CreateTicketGraph {
+func NewCreateTicketGraph(conversation models.Conversation, aiAgent models.AIAgent) *CreateTicketGraph {
 	return &CreateTicketGraph{
 		conversation: conversation,
 		aiAgent:      aiAgent,
@@ -49,9 +49,6 @@ func NewCreateTicketGraph(conversation *models.Conversation, aiAgent models.AIAg
 }
 
 func (g *CreateTicketGraph) Run(ctx context.Context, argumentsInJSON string) (string, error) {
-	if g == nil || g.conversation == nil {
-		return "", fmt.Errorf("create ticket graph not initialized")
-	}
 	wasInterrupted, hasState, state := componenttool.GetInterruptState[CreateTicketGraphState](ctx)
 	if !wasInterrupted {
 		req, err := g.buildCreateRequest(argumentsInJSON)

internal/ai/runtime/graphs/handoff_graph.go

@@ -32,11 +32,11 @@ func init() {
 }
 
 type HandoffGraph struct {
-	conversation *models.Conversation
+	conversation models.Conversation
 	aiAgent      models.AIAgent
 }
 
-func NewHandoffGraph(conversation *models.Conversation, aiAgent models.AIAgent) *HandoffGraph {
+func NewHandoffGraph(conversation models.Conversation, aiAgent models.AIAgent) *HandoffGraph {
 	return &HandoffGraph{
 		conversation: conversation,
 		aiAgent:      aiAgent,
@@ -44,9 +44,6 @@ func NewHandoffGraph(conversation *models.Conversation, aiAgent models.AIAgent)
 }
 
 func (g *HandoffGraph) Run(ctx context.Context, argumentsInJSON string) (string, error) {
-	if g == nil || g.conversation == nil {
-		return "", fmt.Errorf("handoff graph not initialized")
-	}
 	wasInterrupted, hasState, state := componenttool.GetInterruptState[HandoffGraphState](ctx)
 	if !wasInterrupted {
 		reason, err := g.buildReason(argumentsInJSON)

internal/ai/runtime/graphs/prepare_ticket_draft_graph.go

@@ -34,17 +34,14 @@ type PrepareTicketDraftResult struct {
 }
 
 type PrepareTicketDraftGraph struct {
-	conversation *models.Conversation
+	conversation models.Conversation
 }
 
-func NewPrepareTicketDraftGraph(conversation *models.Conversation) *PrepareTicketDraftGraph {
+func NewPrepareTicketDraftGraph(conversation models.Conversation) *PrepareTicketDraftGraph {
 	return &PrepareTicketDraftGraph{conversation: conversation}
 }
 
 func (g *PrepareTicketDraftGraph) Run(_ context.Context, argumentsInJSON string) (string, error) {
-	if g == nil || g.conversation == nil {
-		return "", fmt.Errorf("prepare ticket draft graph not initialized")
-	}
 	input, err := g.parseInput(argumentsInJSON)
 	if err != nil {
 		return "", err
@@ -75,7 +72,7 @@ func (g *PrepareTicketDraftGraph) parseInput(argumentsInJSON string) (PrepareTic
 	return input, nil
 }
 
-func buildPrepareTicketDraftResult(conversation *models.Conversation, messages []models.Message, input PrepareTicketDraftInput) PrepareTicketDraftResult {
+func buildPrepareTicketDraftResult(conversation models.Conversation, messages []models.Message, input PrepareTicketDraftInput) PrepareTicketDraftResult {
 	result := PrepareTicketDraftResult{
 		Priority:          input.Priority,
 		Severity:          input.Severity,
@@ -97,22 +94,22 @@ func buildPrepareTicketDraftResult(conversation *models.Conversation, messages [
 	return result
 }
 
-func buildDraftTitle(conversation *models.Conversation, input PrepareTicketDraftInput) string {
+func buildDraftTitle(conversation models.Conversation, input PrepareTicketDraftInput) string {
 	switch {
 	case input.Title != "":
 		return limitText(input.Title, 80)
 	case input.Issue != "":
 		return limitText(input.Issue, 80)
-	case conversation != nil && strings.TrimSpace(conversation.Subject) != "":
+	case strings.TrimSpace(conversation.Subject) != "":
 		return limitText(conversation.Subject, 80)
-	case conversation != nil:
+	case strings.TrimSpace(conversation.LastMessageSummary) != "":
 		return limitText(conversation.LastMessageSummary, 80)
 	default:
 		return ""
 	}
 }
 
-func buildDraftDescription(conversation *models.Conversation, messages []models.Message, input PrepareTicketDraftInput) string {
+func buildDraftDescription(conversation models.Conversation, messages []models.Message, input PrepareTicketDraftInput) string {
 	if input.Description != "" {
 		return input.Description
 	}
@@ -129,7 +126,7 @@ func buildDraftDescription(conversation *models.Conversation, messages []models.
 	if input.CurrentAttempt != "" {
 		parts = append(parts, "已尝试处理："+input.CurrentAttempt)
 	}
-	if conversation != nil && strings.TrimSpace(conversation.LastMessageSummary) != "" {
+	if strings.TrimSpace(conversation.LastMessageSummary) != "" {
 		parts = append(parts, "会话摘要："+strings.TrimSpace(conversation.LastMessageSummary))
 	}
 	if recent := buildRecentMessageDigest(messages); recent != "" {
@@ -145,12 +142,12 @@ func hasSufficientIssueContext(input PrepareTicketDraftInput, description string
 	return len([]rune(strings.TrimSpace(description))) >= 30
 }
 
-func buildConversationFacts(conversation *models.Conversation, messages []models.Message) []string {
+func buildConversationFacts(conversation models.Conversation, messages []models.Message) []string {
 	facts := make([]string, 0, 4)
-	if conversation != nil && strings.TrimSpace(conversation.Subject) != "" {
+	if strings.TrimSpace(conversation.Subject) != "" {
 		facts = append(facts, "会话主题："+strings.TrimSpace(conversation.Subject))
 	}
-	if conversation != nil && strings.TrimSpace(conversation.LastMessageSummary) != "" {
+	if strings.TrimSpace(conversation.LastMessageSummary) != "" {
 		facts = append(facts, "最近摘要："+strings.TrimSpace(conversation.LastMessageSummary))
 	}
 	if digest := buildRecentMessageDigest(messages); digest != "" {

internal/ai/runtime/graphs/prepare_ticket_draft_graph_test.go

@@ -8,7 +8,7 @@ import (
 )
 
 func TestBuildPrepareTicketDraftResult_UsesConversationFallbacks(t *testing.T) {
-	conversation := &models.Conversation{
+	conversation := models.Conversation{
 		Subject:            "企业微信登录异常",
 		LastMessageSummary: "用户反馈企业微信扫码后页面空白，无法进入工作台",
 	}
@@ -37,7 +37,7 @@ func TestBuildPrepareTicketDraftResult_UsesConversationFallbacks(t *testing.T) {
 }
 
 func TestBuildPrepareTicketDraftResult_ReadyWithExplicitIssue(t *testing.T) {
-	conversation := &models.Conversation{
+	conversation := models.Conversation{
 		Subject:            "订单支付失败",
 		LastMessageSummary: "用户反馈连续支付失败",
 	}

internal/ai/runtime/graphs/triage_service_request_graph.go

@@ -26,17 +26,14 @@ type TriageServiceRequestResult struct {
 }
 
 type TriageServiceRequestGraph struct {
-	conversation *models.Conversation
+	conversation models.Conversation
 }
 
-func NewTriageServiceRequestGraph(conversation *models.Conversation) *TriageServiceRequestGraph {
+func NewTriageServiceRequestGraph(conversation models.Conversation) *TriageServiceRequestGraph {
 	return &TriageServiceRequestGraph{conversation: conversation}
 }
 
 func (g *TriageServiceRequestGraph) Run(_ context.Context, argumentsInJSON string) (string, error) {
-	if g == nil || g.conversation == nil {
-		return "", fmt.Errorf("triage service request graph not initialized")
-	}
 	input, err := g.parseInput(argumentsInJSON)
 	if err != nil {
 		return "", err

internal/ai/runtime/graphs/triage_service_request_graph_test.go

@@ -8,7 +8,7 @@ import (
 )
 
 func TestTriageServiceRequestResult_PrepareTicket(t *testing.T) {
-	conversation := &models.Conversation{
+	conversation := models.Conversation{
 		Subject:            "支付失败需要登记工单",
 		LastMessageSummary: "用户要求建单跟进支付失败问题",
 	}
@@ -30,7 +30,7 @@ func TestTriageServiceRequestResult_PrepareTicket(t *testing.T) {
 }
 
 func TestTriageServiceRequestResult_Handoff(t *testing.T) {
-	conversation := &models.Conversation{
+	conversation := models.Conversation{
 		Subject:            "投诉转人工",
 		LastMessageSummary: "用户要求人工处理扣费投诉",
 	}

internal/ai/runtime/registry/registry_test.go

@@ -49,7 +49,7 @@ func TestResolveBuildsStaticToolMetadata(t *testing.T) {
 		code: toolx.GraphCreateTicketConfirm.Code,
 	})
 	toolSet, err := r.Resolve(registry.Context{
-		Conversation: &models.Conversation{ID: 1},
+		Conversation: models.Conversation{ID: 1},
 		AIAgent:      models.AIAgent{ID: 1},
 	})
 	if err != nil {

internal/ai/runtime/registry/types.go

@@ -9,10 +9,10 @@ import (
 )
 
 type Context struct {
-	Conversation     *models.Conversation
+	Conversation     models.Conversation
 	AIAgent          models.AIAgent
 	AIConfig         models.AIConfig
-	UserMessage      *models.Message
+	UserMessage      models.Message
 	AllowedToolCodes []string
 }
 

internal/ai/runtime/runtime_reply_executor.go

@@ -26,8 +26,8 @@ func (e *runtimeReplyExecutor) Run(ctx context.Context, conversation models.Conv
 	}
 	runtimeStartedAt := time.Now()
 	summary, err := Service.Run(ctx, applicationruntime.Request{
-		Conversation: &conversation,
+		Conversation: conversation,
-		UserMessage:  &message,
+		UserMessage:  message,
 		AIAgent:      aiAgent,
 		AIConfig:     *aiConfig,
 	})
@@ -51,7 +51,7 @@ func (e *runtimeReplyExecutor) ResumePendingInterrupt(ctx context.Context, conve
 		trace.ResumeSource = "pending_interrupt"
 	}
 	summary, err := Service.Resume(ctx, applicationruntime.ResumeRequest{
-		Conversation: &conversation,
+		Conversation: conversation,
 		AIAgent:      aiAgent,
 		AIConfig:     *aiConfig,
 		CheckPointID: strings.TrimSpace(pendingInterrupt.CheckPointID),

internal/ai/runtime/tools/analyze_conversation_tool.go

@@ -2,7 +2,6 @@ package tools
 
 import (
 	"context"
-	"fmt"
 
 	"cs-agent/internal/ai/runtime/graphs"
 	"cs-agent/internal/ai/runtime/registry"
@@ -16,7 +15,7 @@ import (
 )
 
 type AnalyzeConversationTool struct {
-	conversation *models.Conversation
+	conversation models.Conversation
 }
 
 func NewAnalyzeConversationTool() *AnalyzeConversationTool {
@@ -36,7 +35,7 @@ func (t *AnalyzeConversationTool) Code() string {
 }
 
 func (t *AnalyzeConversationTool) Enabled(ctx registry.Context) bool {
-	return ctx.Conversation != nil
+	return true
 }
 
 func (t *AnalyzeConversationTool) Build(ctx registry.Context) (einotool.BaseTool, error) {
@@ -106,8 +105,5 @@ func (t *AnalyzeConversationTool) Info(ctx context.Context) (*schema.ToolInfo, e
 }
 
 func (t *AnalyzeConversationTool) InvokableRun(ctx context.Context, argumentsInJSON string, opts ...einotool.Option) (string, error) {
-	if t == nil || t.conversation == nil {
-		return "", fmt.Errorf("analyze conversation tool not initialized")
-	}
 	return graphs.NewAnalyzeConversationGraph(t.conversation).Run(ctx, argumentsInJSON)
 }

internal/ai/runtime/tools/create_ticket_confirm_tool.go

@@ -2,7 +2,6 @@ package tools
 
 import (
 	"context"
-	"fmt"
 
 	"cs-agent/internal/ai/runtime/graphs"
 	"cs-agent/internal/ai/runtime/registry"
@@ -16,7 +15,7 @@ import (
 )
 
 type CreateTicketGraphTool struct {
-	conversation *models.Conversation
+	conversation models.Conversation
 	aiAgent      models.AIAgent
 }
 
@@ -100,8 +99,5 @@ func (t *CreateTicketGraphTool) Info(ctx context.Context) (*schema.ToolInfo, err
 }
 
 func (t *CreateTicketGraphTool) InvokableRun(ctx context.Context, argumentsInJSON string, opts ...einotool.Option) (string, error) {
-	if t == nil || t.conversation == nil {
-		return "", fmt.Errorf("create ticket graph tool not initialized")
-	}
 	return graphs.NewCreateTicketGraph(t.conversation, t.aiAgent).Run(ctx, argumentsInJSON)
 }

internal/ai/runtime/tools/handoff_graph_tool.go

@@ -2,7 +2,6 @@ package tools
 
 import (
 	"context"
-	"fmt"
 
 	"cs-agent/internal/ai/runtime/graphs"
 	"cs-agent/internal/ai/runtime/registry"
@@ -16,7 +15,7 @@ import (
 )
 
 type HandoffGraphTool struct {
-	conversation *models.Conversation
+	conversation models.Conversation
 	aiAgent      models.AIAgent
 }
 
@@ -75,8 +74,5 @@ func (t *HandoffGraphTool) Info(ctx context.Context) (*schema.ToolInfo, error) {
 }
 
 func (t *HandoffGraphTool) InvokableRun(ctx context.Context, argumentsInJSON string, opts ...einotool.Option) (string, error) {
-	if t == nil || t.conversation == nil {
-		return "", fmt.Errorf("handoff graph tool not initialized")
-	}
 	return graphs.NewHandoffGraph(t.conversation, t.aiAgent).Run(ctx, argumentsInJSON)
 }

internal/ai/runtime/tools/prepare_ticket_draft_tool.go

@@ -2,7 +2,6 @@ package tools
 
 import (
 	"context"
-	"fmt"
 
 	"cs-agent/internal/ai/runtime/graphs"
 	"cs-agent/internal/ai/runtime/registry"
@@ -16,7 +15,7 @@ import (
 )
 
 type PrepareTicketDraftTool struct {
-	conversation *models.Conversation
+	conversation models.Conversation
 }
 
 func NewPrepareTicketDraftTool() *PrepareTicketDraftTool {
@@ -36,7 +35,7 @@ func (t *PrepareTicketDraftTool) Code() string {
 }
 
 func (t *PrepareTicketDraftTool) Enabled(ctx registry.Context) bool {
-	return ctx.Conversation != nil
+	return true
 }
 
 func (t *PrepareTicketDraftTool) Build(ctx registry.Context) (einotool.BaseTool, error) {
@@ -120,8 +119,5 @@ func (t *PrepareTicketDraftTool) Info(ctx context.Context) (*schema.ToolInfo, er
 }
 
 func (t *PrepareTicketDraftTool) InvokableRun(ctx context.Context, argumentsInJSON string, opts ...einotool.Option) (string, error) {
-	if t == nil || t.conversation == nil {
-		return "", fmt.Errorf("prepare ticket draft tool not initialized")
-	}
 	return graphs.NewPrepareTicketDraftGraph(t.conversation).Run(ctx, argumentsInJSON)
 }

internal/ai/runtime/tools/triage_service_request_tool.go

@@ -2,7 +2,6 @@ package tools
 
 import (
 	"context"
-	"fmt"
 
 	"cs-agent/internal/ai/runtime/graphs"
 	"cs-agent/internal/ai/runtime/registry"
@@ -16,7 +15,7 @@ import (
 )
 
 type TriageServiceRequestTool struct {
-	conversation *models.Conversation
+	conversation models.Conversation
 }
 
 func NewTriageServiceRequestTool() *TriageServiceRequestTool {
@@ -36,7 +35,7 @@ func (t *TriageServiceRequestTool) Code() string {
 }
 
 func (t *TriageServiceRequestTool) Enabled(ctx registry.Context) bool {
-	return ctx.Conversation != nil
+	return true
 }
 
 func (t *TriageServiceRequestTool) Build(ctx registry.Context) (einotool.BaseTool, error) {
@@ -99,8 +98,5 @@ func (t *TriageServiceRequestTool) Info(ctx context.Context) (*schema.ToolInfo,
 }
 
 func (t *TriageServiceRequestTool) InvokableRun(ctx context.Context, argumentsInJSON string, opts ...einotool.Option) (string, error) {
-	if t == nil || t.conversation == nil {
-		return "", fmt.Errorf("triage service request tool not initialized")
-	}
 	return graphs.NewTriageServiceRequestGraph(t.conversation).Run(ctx, argumentsInJSON)
 }