Hi-AI

Instructions

Implementation Reference

• src/tools/memory/updateMemory.ts:24-51 (handler)

  Executes the update_memory tool: updates or appends to an existing memory entry using MemoryManager, returns success/error text.

  export async function updateMemory(args: { key: string; value: string; append?: boolean }): Promise<ToolResult> {
    const { key: updateKey, value: updateValue, append = false } = args;
  
    try {
      const mm = MemoryManager.getInstance();
      const existingMemory = mm.recall(updateKey);
  
      if (existingMemory) {
        const newValue = append ? existingMemory.value + ' ' + updateValue : updateValue;
        mm.update(updateKey, newValue);
  
        return {
          content: [{
            type: 'text',
            text: `✓ ${append ? 'Appended to' : 'Updated'} memory: "${updateKey}"`
          }]
        };
      } else {
        return {
          content: [{ type: 'text', text: `✗ Memory not found: "${updateKey}". Use save_memory to create new memory.` }]
        };
      }
    } catch (error) {
      return {
        content: [{ type: 'text', text: `✗ Error: ${error instanceof Error ? error.message : 'Unknown error'}` }]
      };
    }
  }

• src/tools/memory/updateMemory.ts:6-22 (schema)

  ToolDefinition for update_memory including input schema (key:string required, value:string required, append?:boolean) and metadata.

  export const updateMemoryDefinition: ToolDefinition = {
    name: 'update_memory',
    description: 'update|modify|change|edit memory - Update existing memory',
    inputSchema: {
      type: 'object',
      properties: {
        key: { type: 'string', description: 'Memory key to update' },
        value: { type: 'string', description: 'New value' },
        append: { type: 'boolean', description: 'Append to existing value' }
      },
      required: ['key', 'value']
    },
    annotations: {
      title: 'Update Memory',
      audience: ['user', 'assistant']
    }
  };

• src/index.ts:646-647 (registration)

  Registers the handler dispatch for 'update_memory' tool in the executeToolCall switch statement.

  case 'update_memory':
    return await updateMemory(args as any) as CallToolResult;

• src/index.ts:130-130 (registration)

  Adds updateMemoryDefinition to the tools array used for ListToolsRequestHandler.

  updateMemoryDefinition,

• src/index.ts:68-68 (registration)

  Imports the updateMemory handler and definition from the tool module.

  import { updateMemory, updateMemoryDefinition } from './tools/memory/updateMemory.js';