meMCP - Memory-Enhanced Model Context Protocol

Implementation Reference

• src/tools/modules/MemoryOperations.js:192-217 (handler)

  The handler function that implements the core logic of the 'memory_update_fact' tool. It calls this.factStore.updateFact(factId, updates) and formats the response.

  async handleUpdateFact(args) {
    try {
      const { factId, updates } = args;
      
      const updatedFact = await this.factStore.updateFact(factId, updates);
      
      return {
        content: [
          {
            type: 'text',
            text: `✅ Fact updated successfully!\n\n**ID:** ${updatedFact.id}\n**Updated:** ${updatedFact.updatedAt}\n\n**Content:** ${updatedFact.content}`,
          },
        ],
      };
    } catch (error) {
      return {
        content: [
          {
            type: 'text',
            text: `Error updating fact: ${error.message}`,
          },
        ],
        isError: true,
      };
    }
  }

• src/tools/modules/MemoryOperations.js:65-87 (registration)

  Registers the 'memory_update_fact' tool with the server, providing the tool name, description, input schema, and handler function.

  registerUpdateFactTool(server) {
    server.registerTool(
      'memory_update_fact',
      'Update an existing fact in the memory system',
      {
        type: 'object',
        properties: {
          factId: {
            type: 'string',
            description: 'The ID of the fact to update',
          },
          updates: {
            type: 'object',
            description: 'The updates to apply to the fact',
          },
        },
        required: ['factId', 'updates'],
      },
      async (args) => {
        return await this.handleUpdateFact(args);
      }
    );
  }

• src/tools/MemoryTools.js:23-29 (registration)

  The registerTools method in MemoryTools that calls registerTools on MemoryOperations (among others), propagating the tool registration.

  async registerTools(server) {
    // Register tools from modular components
    this.operations.registerTools(server);
    this.queryHandler.registerTools(server);
    this.streamingTools.registerTools(server);
    this.management.registerTools(server);
  }

• src/core/SequentialGraphitiIntegration.js:82-82 (registration)

  Top-level call to register all MemoryTools, including memory_update_fact, with the MCP server.

  await this.memoryTools.registerTools(server);