BST CLI is the missing command line tool for Alexa Skills Kit development. Have Alexa run code directly off of your machine with $bst proxy, test with $bst speak & $bst intend, then deploy your Lambda with $bst deploy.
Further reading: Overview, Getting Started, Documentation
Logless is a log managment service custom built for Alexa Skills. A one line integration instantly captures all requests, output statements, exceptions, and responses to and from your Alexa Skill. The bespoke GUI oraganizes your logs in a way that is intuitive and easy to understand.
Further reading: Overview, Sign-up, Documentation