{"record":{"id":"d88972f7e646f9dc","repo":"ruvnet/ruflo","slug":"failed-to-save-configuration-error-instanceof-e","errorCode":null,"errorMessage":"Failed to save configuration: ${error instanceof Error ? error.message : 'Unknown error'}","messagePattern":"Failed to save configuration: (.+?)","errorType":"exception","errorClass":"Error","httpStatus":null,"severity":"error","filePath":"v3/mcp/tools/config-tools.ts","lineNumber":345,"sourceCode":"        if (error.code !== 'ENOENT') {\n          console.error('Failed to load existing config for merge:', error);\n        }\n      }\n    }\n\n    // Save the configuration\n    await fs.writeFile(safePath, JSON.stringify(configToSave, null, 2), 'utf-8');\n\n    return {\n      saved: true,\n      path: safePath,\n      scope: input.scope,\n      savedAt,\n      backupPath,\n    };\n  } catch (error) {\n    console.error('Failed to save config:', error);\n    throw new Error(`Failed to save configuration: ${error instanceof Error ? error.message : 'Unknown error'}`);\n  }\n}\n\n/**\n * Validate configuration\n */\nasync function handleValidateConfig(\n  input: z.infer<typeof validateConfigSchema>,\n  context?: ToolContext\n): Promise<ValidateConfigResult> {\n  const issues: ValidationIssue[] = [];\n\n  // Stub validation logic\n  const config = input.config as Configuration;\n\n  // Validate agent configuration\n  if (config.agents) {\n    if (config.agents.maxConcurrent && (config.agents.maxConcurrent < 1 || config.agents.maxConcurrent > 1000)) {","sourceCodeStart":327,"sourceCodeEnd":363,"githubUrl":"https://github.com/ruvnet/ruflo/blob/fa13ee4ad60ac2090b1480656eb233521790d640/v3/mcp/tools/config-tools.ts#L327-L363","documentation":"handleSaveConfig's catch-all: the save workflow failed while merging the existing config or during fs.writeFile of the JSON payload. The underlying filesystem or serialization error's message is wrapped and rethrown so the caller knows why the write did not land.","triggerScenarios":"Thrown at v3/mcp/tools/config-tools.ts:345 when the library encounters an invalid state.","commonSituations":"See trigger scenarios.","solutions":["Inspect the underlying error message for the filesystem or serialization failure.","Check write permissions and disk space for the config directory."],"exampleFix":null,"handlingStrategy":"try-catch","validationCode":null,"typeGuard":null,"tryCatchPattern":null,"preventionTips":[],"tags":[],"backgroundTag":null,"analyzedSha":"fa13ee4ad60ac2090b1480656eb233521790d640","analyzedAt":"2026-08-18T21:34:22.708Z","contentChangedAt":"2026-08-18T21:34:22.708Z","schemaVersion":2},"datasetVersion":"2026-09-14T05:17:10.506Z"}