Haven't used skills so far -- do you simply store them in your skills directory and have them automatically get used or do you have to specify one of the skills every time?
Yes regarding directory. They merged the concept of slash commands so I often do /elixir-genius to force it. Or if I just need subagents tell it to use "elixir-expert" or "elixir-qa" in parallel with other appropriate subagents. Also helps to put a mention in the Claude.md file.