{"record":{"id":"ef2be68810ded7f2","repo":"flipped-aurora/gin-vue-admin","slug":"generatedfiles-v","errorCode":null,"errorMessage":"解析generatedFiles失败: %v","messagePattern":"解析generatedFiles失败: (.+?)","errorType":"validation","errorClass":null,"httpStatus":null,"severity":"error","filePath":"server/mcp/gva_review.go","lineNumber":88,"sourceCode":"\t\treturn nil, errors.New(\"参数错误：userRequirement 必须是字符串类型\")\n\t}\n\n\t// 获取生成的文件列表\n\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,","sourceCodeStart":70,"sourceCodeEnd":106,"githubUrl":"https://github.com/flipped-aurora/gin-vue-admin/blob/3136500ef380842b0eb6c4daa87c3f8a47fcf9e0/server/mcp/gva_review.go#L70-L106","documentation":"The gva_review MCP tool accepts generatedFiles as a JSON-encoded string of a string array. Handle unmarshals it with json.Unmarshal and returns this error when the string is not valid JSON of []string (wrong quoting, objects instead of strings, etc.).","triggerScenarios":"Calling the review tool with generatedFiles='[\"a.go\", \"b.go\"]' malformed, e.g. single quotes, unescaped quotes, an object array, or a plain comma-separated string.","commonSituations":"LLM/tool client double-encodes or forgets to JSON-encode the array; passing a Go/JS array directly instead of its JSON string representation; trailing commas in hand-written JSON.","solutions":["Ensure generatedFiles is a JSON array of strings serialized to a string: '[\"server/api/x.go\",\"web/src/views/x.vue\"]'","Check for single quotes / trailing commas / HTML-escaped quotes in the payload","Print and validate the argument with a JSON parser (JSON.parse / json.Valid) before calling the tool"],"exampleFix":"// before\ngeneratedFiles: \"server/api/a.go, web/src/views/a.vue\"\n// after\ngeneratedFiles: \"[\\\"server/api/a.go\\\", \\\"web/src/views/a.vue\\\"]\"","handlingStrategy":"validation","validationCode":"var files []string\nif err := json.Unmarshal([]byte(generatedFilesStr), &files); err != nil {\n  return fmt.Errorf(\"invalid generatedFiles JSON: %w\", err)\n}\nif len(files) == 0 { return fmt.Errorf(\"generatedFiles empty\") }","typeGuard":"func parseGeneratedFiles(s string) ([]string, bool) {\n  var files []string\n  if err := json.Unmarshal([]byte(s), &files); err != nil { return nil, false }\n  return files, len(files) > 0\n}","tryCatchPattern":"files, err := parseGeneratedFiles(raw)\nif err != nil {\n  // log raw and surface a 400-style argument error to the caller\n  return nil, fmt.Errorf(\"generatedFiles argument invalid: %w\", err)\n}","preventionTips":["Serialize arrays with a real JSON encoder, never string concatenation","JSON-encode once (avoid double encoding like \"[\\\"...\\\"]\" inside a quoted string)","Run JSON.Parse/json.Valid on arguments before invoking the tool"],"tags":["json","validation","mcp"],"backgroundTag":"json-parse-error","analyzedSha":"3136500ef380842b0eb6c4daa87c3f8a47fcf9e0","analyzedAt":"2026-08-31T13:50:02.721Z","schemaVersion":2},"datasetVersion":"2026-08-31T19:17:28.585Z"}