Which service provides tools to manage Alexa devices and assign skills?

The service that provides tools to manage Alexa devices and assign skills is Alexa for Business. This service is specifically designed to help organizations use Alexa in a workplace setting by enabling them to manage devices, to create and manage user accounts, and to assign skills to the devices in a controlled manner.

With Alexa for Business, administrators have the ability to set up Alexa-enabled devices in conference rooms, offices, and other locations, facilitating meetings and enhancing productivity through voice commands. The service also allows for the integration of third-party skills, enabling users to customize the functionality of Alexa devices to suit their business needs.

In contrast, the other services are not tailored for managing Alexa devices. Amazon Chime is a communication service that facilitates video conferencing and online meetings, while Amazon WorkMail is an email and calendar service designed for business communication. Amazon Simple Email Service (SES) is primarily focused on sending and receiving emails, making it unrelated to managing Alexa devices or skills. Thus, Alexa for Business is the clear choice when it comes to tools for managing Alexa-related functionalities in a commercial setting.