{"record":{"id":"e559462f5a0808c9","repo":"flipped-aurora/gin-vue-admin","slug":"v-e55946","errorCode":null,"errorMessage":"分析失败: %v","messagePattern":"分析失败: %v","errorType":"exception","errorClass":null,"httpStatus":null,"severity":"error","filePath":"server/mcp/gva_analyze.go","lineNumber":87,"sourceCode":"\t\t\tmcp.Description(\"用户需求描述，可选，仅作为调用方分析的上下文；本工具返回全量快照，不依赖也不解析其内容\"),\n\t\t),\n\t)\n}\n\n// Handle 处理分析请求\nfunc (g *GVAAnalyzer) Handle(ctx context.Context, request mcp.CallToolRequest) (*mcp.CallToolResult, error) {\n\t// 解析请求参数：requirement 为可选上下文，工具返回全量快照，不依赖其内容\n\trequirementStr, _ := request.GetArguments()[\"requirement\"].(string)\n\n\t// 创建分析请求\n\tanalyzeReq := AnalyzeRequest{\n\t\tRequirement: requirementStr,\n\t}\n\n\t// 执行分析逻辑\n\tresponse, err := g.performAnalysis(ctx, analyzeReq)\n\tif err != nil {\n\t\treturn nil, fmt.Errorf(\"分析失败: %v\", err)\n\t}\n\n\t// 序列化响应\n\treturn textResultWithJSON(\"\", response)\n}\n\n// performAnalysis 执行分析逻辑\nfunc (g *GVAAnalyzer) performAnalysis(ctx context.Context, req AnalyzeRequest) (*AnalyzeResponse, error) {\n\t_ = req\n\n\tpackages, err := fetchAutoCodePackages(ctx)\n\tif err != nil {\n\t\treturn nil, fmt.Errorf(\"获取包信息失败: %v\", err)\n\t}\n\n\thistories, err := fetchAutoCodeHistories(ctx)\n\tif err != nil {\n\t\treturn nil, fmt.Errorf(\"获取历史记录失败: %v\", err)","sourceCodeStart":69,"sourceCodeEnd":105,"githubUrl":"https://github.com/flipped-aurora/gin-vue-admin/blob/3136500ef380842b0eb6c4daa87c3f8a47fcf9e0/server/mcp/gva_analyze.go#L69-L105","documentation":"The gva_analyze MCP tool's Handle wraps any failure from performAnalysis (server/mcp/gva_analyze.go:87) with the generic prefix \"分析失败: %v\". It means the analyzer could not produce the snapshot of existing packages/modules/dictionaries. The underlying cause is always one of the wrapped sub-errors (获取包信息失败, 获取历史记录失败, etc.), so read the suffix for the real problem.","triggerScenarios":"An MCP client calls the gva_analyze tool while performAnalysis returns an error — typically fetchAutoCodePackages or fetchAutoCodeHistories failing (DB unavailable, auth/token missing from ctx, upstream API error).","commonSituations":"Calling gva_analyze when the GVA backend database is down or migrated incompletely; MCP server lacking valid credentials so auto-code package/history fetches fail; AutoCode configuration (autocode root path) not set so scans fail earlier in the chain.","solutions":["Read the suffix after \"分析失败:\" — it names the failing step (包信息/历史记录) and the root error.","Verify the GVA server and its database are running and the sys_auto_code_* tables exist.","Ensure the request context carries valid auth (the fetches use the caller's token from ctx).","Check config.yaml AutoCode.root/server paths are set before invoking the tool.","Retry the gva_analyze call once the underlying dependency is healthy."],"exampleFix":"// before: analyzing while DB is down -> 分析失败: 获取包信息失败: dial tcp ... refused\n// after: start the backend/DB first, then call\ngva_analyze({\"requirement\": \"需要用户管理模块\"})","handlingStrategy":"try-catch","validationCode":"// MCP client: check backend health before calling the tool\nconst healthy = await fetch(`${baseUrl}/health`).then(r => r.ok).catch(() => false)\nif (!healthy) throw new Error('GVA backend unavailable; skip gva_analyze')","typeGuard":null,"tryCatchPattern":"try {\n  const snapshot = await callTool('gva_analyze', { requirement })\n} catch (e) {\n  if (String(e.message).includes('分析失败')) {\n    // surface the suffix cause: 获取包信息失败 / 获取历史记录失败\n    console.error('analyze failed:', e.message)\n  }\n}","preventionTips":["Verify the GVA server and DB are up before MCP sessions.","Keep the auth token in the request context fresh.","Set AutoCode root/server config before running code-generation flows."],"tags":["mcp","autocode","database","go"],"backgroundTag":"upstream-dependency-failed","analyzedSha":"3136500ef380842b0eb6c4daa87c3f8a47fcf9e0","analyzedAt":"2026-08-31T13:50:02.721Z","schemaVersion":2},"datasetVersion":"2026-08-31T19:17:28.585Z"}