{"record":{"id":"ff6539e22766c6b2","repo":"flipped-aurora/gin-vue-admin","slug":"generatedfiles-ff6539","errorCode":null,"errorMessage":"参数错误：generatedFiles 不能为空","messagePattern":"参数错误：generatedFiles 不能为空","errorType":"validation","errorClass":null,"httpStatus":null,"severity":"error","filePath":"server/mcp/gva_review.go","lineNumber":92,"sourceCode":"\tgeneratedFilesData, ok := request.GetArguments()[\"generatedFiles\"]\n\tif !ok {\n\t\treturn nil, errors.New(\"参数错误：generatedFiles 必须提供\")\n\t}\n\n\tgeneratedFilesStr, ok := generatedFilesData.(string)\n\tif !ok {\n\t\treturn nil, errors.New(\"参数错误：generatedFiles 必须是JSON字符串\")\n\t}\n\n\t// 解析JSON字符串为字符串数组\n\tvar generatedFiles []string\n\terr := json.Unmarshal([]byte(generatedFilesStr), &generatedFiles)\n\tif err != nil {\n\t\treturn nil, fmt.Errorf(\"解析generatedFiles失败: %v\", err)\n\t}\n\n\tif len(generatedFiles) == 0 {\n\t\treturn nil, errors.New(\"参数错误：generatedFiles 不能为空\")\n\t}\n\n\t// 直接生成调整提示，不进行复杂分析\n\tadjustmentPrompt := g.generateAdjustmentPrompt(userRequirement, generatedFiles)\n\n\t// 构建简化的审查详情\n\treviewDetails := fmt.Sprintf(\"📋 **代码审查报告**\\n\\n **用户原始需求：**\\n%s\\n\\n **已生成文件数量：** %d\\n\\n **建议进行代码优化和完善**\", userRequirement, len(generatedFiles))\n\n\t// 构建审查结果\n\treviewResult := &ReviewResponse{\n\t\tSuccess:          true,\n\t\tMessage:          \"代码审查完成\",\n\t\tAdjustmentPrompt: adjustmentPrompt,\n\t\tReviewDetails:    reviewDetails,\n\t}\n\n\t// 序列化响应\n\treturn textResultWithJSON(\"代码审查结果：\", reviewResult)","sourceCodeStart":74,"sourceCodeEnd":110,"githubUrl":"https://github.com/flipped-aurora/gin-vue-admin/blob/3136500ef380842b0eb6c4daa87c3f8a47fcf9e0/server/mcp/gva_review.go#L74-L110","documentation":"After successfully unmarshalling 'generatedFiles' into a []string, Handle rejects an empty array with this error. The reviewer needs at least one file path to build the adjustment prompt; an empty list would produce a meaningless review, so it is treated as invalid input.","triggerScenarios":"Calling gva_review with 'generatedFiles' set to \"[]\" or a JSON string that unmarshals to a zero-length slice.","commonSituations":"File-collection step upstream produced no results (glob matched nothing, all files filtered out); caller passes a placeholder empty array to satisfy the presence check from error 32; logic bug where files were added to the wrong variable.","solutions":["Populate the array with at least one valid file path before calling the tool.","Fix the upstream file-collection logic so it actually gathers generated files (log the list before sending).","If nothing was generated, skip the review call instead of invoking it with an empty list.","Validate on the client: marshal the list, check len > 0, then call."],"exampleFix":"// before\nif err := json.Unmarshal(b, &files); err != nil { return err }\ncallReview(req, files) // files may be empty\n// after\nif err := json.Unmarshal(b, &files); err != nil { return err }\nif len(files) == 0 { return errors.New(\"no generated files to review\") }\ncallReview(req, files)","handlingStrategy":"validation","validationCode":"var files []string\n_ = json.Unmarshal([]byte(generatedFilesStr), &files)\nif len(files) == 0 {\n    return errors.New(\"refusing to call gva_review with an empty generatedFiles list\")\n}","typeGuard":null,"tryCatchPattern":null,"preventionTips":["Check the collected file list length before invoking the review tool.","Log which files were gathered so empty-collection bugs surface immediately.","Skip the review step entirely when no files were generated."],"tags":["mcp","validation","empty-input","go"],"backgroundTag":"empty-required-collection","analyzedSha":"3136500ef380842b0eb6c4daa87c3f8a47fcf9e0","analyzedAt":"2026-08-31T13:50:02.721Z","schemaVersion":2},"datasetVersion":"2026-08-31T19:17:28.585Z"}