Hi,
I have write severals tasks for my project.
The live in /lib/mix/tasks and are working.
What I am looking for is a mix command (or other way) to get a list of all available tasks in my project in /lib/mix/tasks.
mix help
and mix local
do not list the commands at all.
Any suggestions?
Good question, I just tried to make a new project and made a small task inside of it and mix help
does not show it either. Interesting.
Suggestion: make a mix task that shows your local mix tasks. 
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A blog post from Jonathan Palardy gave me the clue:
The tasks must have a @shortdoc
with a short line describing the task.
After $ mix compile
the tasks get listed.
A huge thank you to Jonathan for writing about mix tasks and @shortdoc.
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