FREE PROMPT GRADER
Prompt scorecard: grade any AI prompt out of 100
Paste a prompt you use with ChatGPT, Claude, Gemini or any other assistant. You get a grade out of 100, a score for each ingredient, the weaknesses holding it back and an improved version to copy.
How the score works
Each ingredient is scored from 0 to 5, and the grade is their total out of 100. The improved prompt keeps what your prompt already does and marks anything you did not supply as a placeholder in brackets to fill in.
Grading a CLAUDE.md, AGENTS.md, Cursor rule, SKILL.md or a custom assistant’s instructions? Choose the kind of file and the same six ingredients are read as they apply to that file. The improved version comes back in the file’s own format, ready to download.
- Goal clarity
- The prompt says what the AI should produce and why, in one reading, with no competing objectives.
- Audience
- The prompt names who the result is for, or who the AI is speaking as, and what that reader already knows.
- Constraints
- The prompt states the limits that matter: length, tone, scope, facts to keep, and what must not happen.
- Format
- The prompt describes the shape of the answer: sections, lists, tables, file type or structure.
- Examples
- The prompt shows what good looks like with a sample, a reference or a model answer, where one would help.
- Success check
- The prompt says how to tell the result is right: criteria, a checklist, or a test the answer must pass.
Your prompt is used to score it and write the improved version. The share card shows only the scores unless you choose to add your prompt’s first line.