The definition of done is a shared checklist of conditions every piece of work must meet before a team calls it finished.
It applies to all work, unlike acceptance criteria, which are specific to one story. It prevents "done but not tested" or "done but not deployed" surprises.
Example
- Code reviewed and merged.
- Automated tests pass.
- Documentation updated.
- Deployed to staging and checked by the product owner.
In Starlex
Keep the definition of done in a project page, and use workflow validators to require fields before an issue can move to Done.