These cover things like bug fixes and small enhancements that do not involve any major architectural or design decisions. You should feel free to submit these for review as you come across them.
- Find or create an issue.
- Write the fix, include the appropriate tests. Check out What is a Good CockroachDB PR.
- Follow our code review workflow.
- A CockroachDB engineer will validate and merge.
A good place to find these types of projects are open issues with the label "easy" or "good first issue".