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@@ -105,8 +105,8 @@ func RegisterKnowledgeTool(
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for i, result := range results {
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resultText.WriteString(fmt.Sprintf("--- 结果 %d (相似度: %.2f%%) ---\n", i+1, result.Similarity*100))
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resultText.WriteString(fmt.Sprintf("来源: [%s] %s\n", result.Item.Category, result.Item.Title))
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resultText.WriteString(fmt.Sprintf("内容:\n%s\n\n", result.Chunk.ChunkText))
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resultText.WriteString(fmt.Sprintf("来源: [%s] %s (ID: %s)\n", result.Item.Category, result.Item.Title, result.Item.ID))
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resultText.WriteString(fmt.Sprintf("内容片段:\n%s\n\n", result.Chunk.ChunkText))
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if !contains(retrievedItemIDs, result.Item.ID) {
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retrievedItemIDs = append(retrievedItemIDs, result.Item.ID)
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@@ -140,6 +140,89 @@ func RegisterKnowledgeTool(
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mcpServer.RegisterTool(tool, handler)
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logger.Info("知识检索工具已注册", zap.String("toolName", tool.Name))
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// 注册读取完整知识项的工具
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RegisterReadKnowledgeItemTool(mcpServer, manager, logger)
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}
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// RegisterReadKnowledgeItemTool 注册读取完整知识项工具到MCP服务器
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func RegisterReadKnowledgeItemTool(
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mcpServer *mcp.Server,
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manager *Manager,
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logger *zap.Logger,
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) {
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tool := mcp.Tool{
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Name: "read_knowledge_item",
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Description: "根据知识项ID读取完整的知识文档内容。**重要:此工具应谨慎使用,只在检索到的片段信息明显不足时才调用。** 使用场景:1) 检索片段缺少关键上下文导致无法理解;2) 需要查看文档的完整结构或流程;3) 片段信息不完整,必须查看完整文档才能回答用户问题。**不要**仅为了获取更多信息而盲目读取完整文档,因为检索工具已经返回了最相关的片段。传入知识项ID(从search_knowledge_base的检索结果中获取)即可获取该知识项的完整内容(包括标题、分类、完整文档内容等)。",
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ShortDescription: "读取完整知识项文档(仅在片段信息不足时使用)",
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InputSchema: map[string]interface{}{
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"type": "object",
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"properties": map[string]interface{}{
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"item_id": map[string]interface{}{
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"type": "string",
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"description": "知识项ID(可以从 search_knowledge_base 的检索结果中获取)",
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},
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},
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"required": []string{"item_id"},
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},
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}
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handler := func(ctx context.Context, args map[string]interface{}) (*mcp.ToolResult, error) {
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itemID, ok := args["item_id"].(string)
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if !ok || itemID == "" {
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return &mcp.ToolResult{
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Content: []mcp.Content{
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{
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Type: "text",
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Text: "错误: item_id 参数不能为空",
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},
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},
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IsError: true,
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}, nil
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}
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logger.Info("读取知识项", zap.String("itemId", itemID))
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// 获取完整知识项
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item, err := manager.GetItem(itemID)
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if err != nil {
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logger.Error("读取知识项失败", zap.String("itemId", itemID), zap.Error(err))
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return &mcp.ToolResult{
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Content: []mcp.Content{
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{
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Type: "text",
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Text: fmt.Sprintf("读取知识项失败: %v", err),
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},
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},
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IsError: true,
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}, nil
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}
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// 格式化结果
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var resultText strings.Builder
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resultText.WriteString("=== 完整知识项内容 ===\n\n")
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resultText.WriteString(fmt.Sprintf("ID: %s\n", item.ID))
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resultText.WriteString(fmt.Sprintf("分类: %s\n", item.Category))
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resultText.WriteString(fmt.Sprintf("标题: %s\n", item.Title))
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if item.FilePath != "" {
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resultText.WriteString(fmt.Sprintf("文件路径: %s\n", item.FilePath))
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}
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resultText.WriteString("\n--- 完整内容 ---\n\n")
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resultText.WriteString(item.Content)
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resultText.WriteString("\n\n")
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return &mcp.ToolResult{
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Content: []mcp.Content{
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{
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Type: "text",
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Text: resultText.String(),
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},
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},
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}, nil
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}
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mcpServer.RegisterTool(tool, handler)
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logger.Info("读取知识项工具已注册", zap.String("toolName", tool.Name))
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}
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// contains 检查切片是否包含元素
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