# molt-shell -- Molt Application Frameworks
The `molt-shell` crate provides application frameworks for use with the Molt TCL interpreter:
* A interpreter shell (REPL)
* A test harness
* A benchmark harness
The Molt Book (and the rustdoc) explain how to create each of these kinds of apps; or see
the `molt-app` crate for a straightforward example. `molt-app` defines `moltsh`, which
provides a vanilla REPL, test tool, and benchmark tool, in one page of code.
The [`molt-sample` repo](http://github.com/wduquette/molt-sample) contains a sample Molt
extension, including a shell application and a library create, both of which define new
Molt commands.
See [The Molt Book](https://wduquette.github.io/molt) for more details, and
the [GitHub Repo](https://github.com/wduquette/molt) for issue tracking, etc.