1# Contributing to the CFEngine masterfiles 2 3* Follow the [Core contribution guidelines](https://github.com/cfengine/core/blob/master/CONTRIBUTING.md#how-to-contribute-to-cfengine) 4* * Prefix commit subjects with the issue identifier 5* * Don't forget to include a [ChangeLog Entry](https://github.com/cfengine/core/blob/master/CONTRIBUTING.md#changelog) 6* Follow the [policy style guide](https://docs.cfengine.com/docs/latest/guide-writing-and-serving-policy-policy-style.html) 7* Test thoroughly, provide [acceptance tests](https://github.com/cfengine/core/blob/master/tests/acceptance/README) to run in core or masterfiles using the [DCS framework](https://github.com/cfengine/core/blob/master/tests/acceptance/DCS.org) 8* Document well See [MPF.md](MPF.md) 9* lurk for a bit 10* don't be afraid to ask questions 11