harvest-mcp-server

Instructions

Implementation Reference

• src/tools/tasks.ts:76-92 (handler)

  The handler class UpdateTaskHandler contains the logic to execute the 'update_task' tool by calling the Harvest API.

  class UpdateTaskHandler implements ToolHandler {
    constructor(private readonly config: BaseToolConfig) {}
  
    async execute(args: Record<string, any>): Promise<CallToolResult> {
      try {
        const validatedArgs = validateInput(UpdateTaskSchema, args, 'update task');
        logger.info('Updating task via Harvest API', { taskId: validatedArgs.id });
        const task = await this.config.harvestClient.updateTask(validatedArgs);
        
        return {
          content: [{ type: 'text', text: JSON.stringify(task, null, 2) }],
        };
      } catch (error) {
        return handleMCPToolError(error, 'update_task');
      }
    }
  }

• src/tools/tasks.ts:167-186 (registration)

  The registration of the 'update_task' tool in the registerTaskTools function, linking it to the UpdateTaskHandler.

  {
    tool: {
      name: 'update_task',
      description: 'Update an existing task. Can modify task name, billing settings, and activity status. Only provided fields will be updated.',
      inputSchema: {
        type: 'object',
        properties: {
          id: { type: 'number', description: 'The ID of the task to update (required)' },
          name: { type: 'string', minLength: 1, description: 'Update task name' },
          billable_by_default: { type: 'boolean', description: 'Update default billing status' },
          default_hourly_rate: { type: 'number', minimum: 0, description: 'Update default hourly rate' },
          is_default: { type: 'boolean', description: 'Update default task status' },
          is_active: { type: 'boolean', description: 'Update active status' },
        },
        required: ['id'],
        additionalProperties: false,
      },
    },
    handler: new UpdateTaskHandler(config),
  },