The spec is way more detailed than it should be at this stage; it's not much more than my own opinions, mixed with a little bit of feedback from folks on Google's identity team and password manager team.
I'm a little wary of putting it out like this, because of threads like this one. I'm not looking for a rubber-stamp, I will burn the whole thing down if folks generally like the idea but disagree with the approach.
Feedback ever so welcome. :)
- Use cases: https://mikewest.github.io/credentialmanagement/usecases/
- Spec: https://mikewest.github.io/credentialmanagement/spec/
- proof-of-concept polyfill: https://mikewest.github.io/credentialmanagement/polyfill/ (click "Save!" first, because no one at all ever has accountchooser.com credentials :) )
- Thread: http://lists.w3.org/Archives/Public/public-webapps/2014JulSep/0141.html