Looking at the bureaucratic requirements it appears that you’ve mis-read the pattern for plugin keys, which is [a-z0-9]. Those dashes aren’t allowed, in the key, they’re there to describe ranges. So I’ll need you to update your plugin keys. The metadata job simply won’t work like they are.
The other bureaucratic requirements look fine.
The PR is also missing something. Specifically, the part where you register your new files/plugins in the master list in update-center-source.properties.
But before you do that, I’ll need to test the plugins. Can you provide or point me to projects I can/should test with?