For a list of available tasks please look at the open issues. I try to keep them up-to-date.
For C and C++, please use the clang-format file under extra-tools. You can also just skip that and use some common sense.
For Python, Lua and Haskell, just your common sense. Don't cram your lines into 80 characters. Please don't.
If you are adding a feature or functionality please also include the tests. all tests go into the test directory under ptoject root inside a folder with the same name as the executable they belong to.
The travis build is enabled for mutator forks so you can check your pull request's coverage and see whether you have decreased the coverage or not.
For discussions regarding the implementations or feature requests or enhancements please use the repo's issues.
We have quite a varied range of labels for issues. please use them.
Don't forget to add your name to the Contributers.md file in the repo root. The list has a chronological order. Don't break that.