From @sebawita on December 4, 2017 18:50

Bug Report or Feature Request (mark with an x)

- [ ] bug report -> please search issues before submitting
- [x] feature request

Area

- [ ] devkit
- [x] schematics

Desired functionality

Currently the only way to check the available parameters for a schematics is by looking into its json schema file.
It would be great to have a way in the CLI to display the list of params, like this:
schematics @schematics:schematic --schema

Copied from original issue: angular/devkit#311