Knowledge Graph Memory Server

Instructions

Implementation Reference

• index.ts:799-816 (handler)

  The main handler function in KnowledgeGraphManager that executes the find_similar_errors tool logic by filtering and sorting lesson entities based on similarity to the provided error pattern.
  async findSimilarErrors(errorPattern: ErrorPattern): Promise<LessonEntity[]> { const graph = await this.loadGraph(); return graph.entities .filter((e): e is LessonEntity => { if (e.entityType !== 'lesson') return false; const lessonEntity = e as Partial<LessonEntity>; return ( lessonEntity.errorPattern !== undefined && ( lessonEntity.errorPattern.type === errorPattern.type || lessonEntity.errorPattern.message.toLowerCase().includes(errorPattern.message.toLowerCase()) || lessonEntity.errorPattern.context === errorPattern.context ) ); }) .sort((a, b) => (b.metadata?.successRate ?? 0) - (a.metadata?.successRate ?? 0)); }
• index.ts:1166-1184 (registration)

  Tool registration in the ListTools response, including name, description, and input schema.
  { name: "find_similar_errors", description: "Find similar errors and their solutions in the knowledge graph", inputSchema: { type: "object", properties: { errorPattern: { type: "object", properties: { type: { type: "string", description: "Category of the error" }, message: { type: "string", description: "The error message" }, context: { type: "string", description: "Where the error occurred" } }, required: ["type", "message", "context"] } }, required: ["errorPattern"] } },
• index.ts:56-61 (schema)

  TypeScript interface defining the input structure for the error pattern used by the tool.
  interface ErrorPattern { type: string; message: string; context: string; stackTrace?: string; }
• index.ts:1246-1247 (handler)

  Dispatcher in the CallToolRequest handler that invokes the findSimilarErrors method with the tool arguments.
  case "find_similar_errors": return { content: [{ type: "text", text: JSON.stringify(await knowledgeGraphManager.findSimilarErrors(args.errorPattern as ErrorPattern), null, 2) }] };
• index.ts:69-73 (schema)

  TypeScript interface defining the structure of lesson entities returned by the tool.
  interface LessonEntity extends Entity { errorPattern: ErrorPattern; metadata: Metadata; verificationSteps: VerificationStep[]; }