feat: add ProjectInstructionProvider and ToolAppendixProvider for enhanced instruction handling

internal/ai/runtime/internal/impl/factory/agent_factory.go

@@ -24,6 +24,8 @@ type AgentFactory struct {
 	chatModelFactory           *ChatModelFactory
 	toolFactory                *ToolFactory
 	instructionAssembler       *InstructionAssembler
+	projectInstructionProvider *ProjectInstructionProvider
+	toolAppendixProvider       *ToolAppendixProvider
 }
 
 // BuildCustomerServiceAgentInput 定义客服 Agent 的装配输入。
@@ -60,6 +62,8 @@ func NewAgentFactory() *AgentFactory {
 		chatModelFactory:           NewChatModelFactory(),
 		toolFactory:                NewToolFactory(),
 		instructionAssembler:       NewInstructionAssembler(),
+		projectInstructionProvider: NewProjectInstructionProvider(),
+		toolAppendixProvider:       NewToolAppendixProvider(),
 	}
 }
 
@@ -102,7 +106,7 @@ func (f *AgentFactory) BuildCustomerServiceAgent(ctx context.Context, input Buil
 		}
 		handlers = append(handlers, einocallbacks.NewRuntimeTraceHandler(input.Collector, toolMetadataBy))
 	}
-	instructionResult := assembleAgentInstruction(input.AIAgent, input.SelectedSkill, input.InstructionToolDefinitions, input.StaticToolCodes)
+	instructionResult := f.assembleAgentInstruction(input.AIAgent, input.SelectedSkill, input.InstructionToolDefinitions, input.StaticToolCodes)
 	if input.Collector != nil {
 		input.Collector.SetInstructionSummary(einocallbacks.InstructionTraceSummary{
 			SectionTitles:     append([]string(nil), instructionResult.Summary.SectionTitles...),
@@ -144,16 +148,25 @@ func (f *AgentFactory) buildSelectedSkillMiddleware(ctx context.Context, selecte
 	})
 }
 
-func assembleAgentInstruction(aiAgent *models.AIAgent, selectedSkill *models.SkillDefinition, toolDefinitions []einoadapter.MCPToolDefinition, extraToolCodes map[string]string) InstructionAssemblyResult {
+func (f *AgentFactory) assembleAgentInstruction(aiAgent *models.AIAgent, selectedSkill *models.SkillDefinition, toolDefinitions []einoadapter.MCPToolDefinition, extraToolCodes map[string]string) InstructionAssemblyResult {
 	baseInstruction := ""
 	if aiAgent != nil {
 		baseInstruction = strings.TrimSpace(aiAgent.SystemPrompt)
 	}
 	appendixParts := buildInstructionAppendices(selectedSkill, toolDefinitions, extraToolCodes)
-	return NewInstructionAssembler().Assemble(InstructionAssemblerInput{
+	projectInstruction := ""
+	if f != nil && f.projectInstructionProvider != nil {
+		projectInstruction = f.projectInstructionProvider.Resolve()
+	}
+	assembler := NewInstructionAssembler()
+	if f != nil && f.instructionAssembler != nil {
+		assembler = f.instructionAssembler
+	}
+	return assembler.Assemble(InstructionAssemblerInput{
 		AgentInstruction:   baseInstruction,
 		SkillInstruction:   firstAppendixPart(appendixParts),
 		ToolAppendices:     remainingAppendixParts(appendixParts),
+		ProjectInstruction: projectInstruction,
 	})
 }
 

internal/ai/runtime/internal/impl/factory/instruction_providers.go

@@ -0,0 +1,41 @@
+package factory
+
+import (
+	"strings"
+
+	einoadapter "cs-agent/internal/ai/runtime/internal/impl/adapter"
+	"cs-agent/internal/models"
+	"cs-agent/internal/pkg/toolx"
+)
+
+type ProjectInstructionProvider struct{}
+
+func NewProjectInstructionProvider() *ProjectInstructionProvider {
+	return &ProjectInstructionProvider{}
+}
+
+func (p *ProjectInstructionProvider) Resolve() string {
+	return strings.TrimSpace(DefaultProjectInstruction)
+}
+
+type ToolAppendixProvider struct{}
+
+func NewToolAppendixProvider() *ToolAppendixProvider {
+	return &ToolAppendixProvider{}
+}
+
+func (p *ToolAppendixProvider) Build(selectedSkill *models.SkillDefinition, toolDefinitions []einoadapter.MCPToolDefinition, extraToolCodes map[string]string) []string {
+	appendixParts := make([]string, 0, 2)
+	if skillInstruction := buildSelectedSkillActivationInstruction(selectedSkill); skillInstruction != "" {
+		appendixParts = append(appendixParts, skillInstruction)
+	}
+	toolCodes := make([]string, 0, len(toolDefinitions)+len(extraToolCodes))
+	for _, item := range toolDefinitions {
+		toolCodes = append(toolCodes, item.ToolCode)
+	}
+	for _, item := range extraToolCodes {
+		toolCodes = append(toolCodes, item)
+	}
+	appendixParts = append(appendixParts, toolx.BuildToolAppendicesForCodes(len(toolDefinitions) > 0, toolCodes)...)
+	return appendixParts
+}

internal/ai/runtime/internal/impl/factory/tool_helpers.go

@@ -57,17 +57,5 @@ func buildRuntimeTraceToolMetadata(
 }
 
 func buildInstructionAppendices(selectedSkill *models.SkillDefinition, toolDefinitions []einoadapter.MCPToolDefinition, extraToolCodes map[string]string) []string {
-	appendixParts := make([]string, 0, 2)
+	return NewToolAppendixProvider().Build(selectedSkill, toolDefinitions, extraToolCodes)
-	if skillInstruction := buildSelectedSkillActivationInstruction(selectedSkill); skillInstruction != "" {
-		appendixParts = append(appendixParts, skillInstruction)
-	}
-	toolCodes := make([]string, 0, len(toolDefinitions)+len(extraToolCodes))
-	for _, item := range toolDefinitions {
-		toolCodes = append(toolCodes, item.ToolCode)
-	}
-	for _, item := range extraToolCodes {
-		toolCodes = append(toolCodes, item)
-	}
-	appendixParts = append(appendixParts, toolx.BuildToolAppendicesForCodes(len(toolDefinitions) > 0, toolCodes)...)
-	return appendixParts
 }