Practical
Tools should tell you what to do next, not bury you in theory.
The basic idea
Writing is creative work, but the work around creativity can be organized. A useful checklist, style guide, review process, or planning framework can reduce friction and leave more attention for the story itself.
Flexible
A writing process should support the story instead of forcing every project into the same mold.
Repeatable
Good workflows make it easier to reproduce what worked on the last manuscript.