[NeutronStar]

"AWS Cloud9 is a cloud-based integrated development environment (IDE) that lets you write, run, and debug your code with just a browser."

I would say no.

[RKearney]

You can easily SSH to a Cloud9 instance, so it would satisfy the criteria given.

Alternatively, one can launch a custom AMI in EC2 to do whatever they want.

Multiple solutions already exist for the given problem, therefore yet another AWS service seems unnecessary.

[bgs113]

Except that Cloud9 requires an EC2 instance and associated spend, whereas CloudShell is free.