{"record":{"id":"77a093af3e1e31b0","repo":"ruvnet/ruflo","slug":"q-learning-failed-to-save-model-err","errorCode":null,"errorMessage":"[Q-Learning] Failed to save model: ${err}","messagePattern":"\\[Q-Learning\\] Failed to save model: (.+?)","errorType":"console","errorClass":null,"httpStatus":null,"severity":"error","filePath":"v3/@claude-flow/cli/src/ruvector/q-learning-router.ts","lineNumber":334,"sourceCode":"          numActions: this.config.numActions,\n        },\n        qTable: this.export(),\n        stats: {\n          stepCount: this.stepCount,\n          updateCount: this.updateCount,\n          avgTDError: this.avgTDError,\n          epsilon: this.epsilon,\n        },\n        metadata: {\n          savedAt: new Date().toISOString(),\n          totalExperiences: this.totalExperiences,\n        },\n      };\n\n      writeFileSync(modelPath, JSON.stringify(model, null, 2));\n      return true;\n    } catch (err) {\n      console.warn(`[Q-Learning] Failed to save model: ${err}`);\n      return false;\n    }\n  }\n\n  /**\n   * Route a task based on its context\n   * Uses LRU cache for repeated task patterns\n   */\n  route(taskContext: string, explore: boolean = true): RouteDecision {\n    const stateKey = this.hashStateOptimized(taskContext);\n\n    // Check cache first (only for exploitation, not exploration)\n    if (!explore) {\n      const cached = this.getCachedRoute(stateKey);\n      if (cached) {\n        this.cacheHits++;\n        return cached;\n      }","sourceCodeStart":316,"sourceCodeEnd":352,"githubUrl":"https://github.com/ruvnet/ruflo/blob/fa13ee4ad60ac2090b1480656eb233521790d640/v3/@claude-flow/cli/src/ruvector/q-learning-router.ts#L316-L352","documentation":"Log warning in saveModel: serializing or writing the Q-learning model to disk (writeFileSync) failed; saveModel returns false so callers know persistence was skipped while learning continues in memory.","triggerScenarios":"Thrown at v3/@claude-flow/cli/src/ruvector/q-learning-router.ts:334 when the library encounters an invalid state.","commonSituations":"See trigger scenarios.","solutions":["Check write permissions and disk space for the model persistence path; saving is retried on the next update."],"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"}