
Rubric Writer
A Claude skill. Drop it in your skills folder and ask for a rubric. It writes rows that are atomic (one thing per row), binary (yes or no, no partial credit), self-contained (the grader never has to look anything up) and objective (two graders land on the same answer). If you ask it for a mushy row it says no and explains why.
What you get: the skill file, a worked example, and the three rules it refuses to break.









