minimum things that a rails developer should have

This what I think a middle rails developer should have :


1. 2-3 RoR projects experience long enough to find design flaw in the implementation
2. Fluent with one test engine (test-unit, rspec, minitest)
3. Knowing minimal gems (authentication, pagination)
4. Writing idiomatic ruby code
5. Knowing at least 1 thing he doesn't like in RoR

The above points are said by martin one of my linkedin friend.

Thank You,
Uma Mahesh.