Individual skill
rubric-builder
Create a clear grading rubric with criteria and performance-level descriptors that make scoring fair, fast, and consistent. Use when asked to build a rubric, create grading criteria, design an assessment scoring guide, or make grading more objective. Produces an analytic rubric table (criteria × performance levels) with concrete, observable descriptors and a points scheme — plus a short version students can self-check against.
skills/rubric-builder/SKILL.md
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# Rubric Builder Skill
A good rubric turns "this feels like a B" into a defensible, repeatable judgment — and tells students exactly how to do better. This skill builds one with observable descriptors at each level.
## Working from a brief
Given the assignment and level, **build the full rubric anyway**, inferring sensible criteria and weighting. Mark anything assumed. Never leave "[describe level]"; write concrete descriptors.
## Required Inputs
Ask for (if not already provided):
- **The assignment / task** being graded and **grade or level**
- **What matters most** (the criteria, or let the skill propose them)
- **Scale** (e.g. 4-level: Exemplary/Proficient/Developing/Beginning) and total points