Scaffold a clear, criteria-by-standards marking rubric: set your standard levels, add criteria and weights, write the descriptors, and export to Markdown or print. A good rubric makes your standards explicit for markers and students alike — this gives you the structure; you write the words.
A scaffold, not a standard. This builds the structure of a rubric; the descriptors and standards are yours to write and your institution's to approve. Good rubrics describe observable standards in plain language and are shared with students before they submit. Nothing you type is stored or sent — it lives in this browser only.