Free tool
Prompt Quality Checker
Grade any AI prompt against six dimensions and get specific, actionable fixes for every issue found — missing context, no constraints, cliché phrasing, unspecified format. Free and private.
Paste a prompt above to get a score out of 100 and specific fixes.
Frequently asked questions
How is the prompt score calculated?
The score weights six dimensions: context and task clarity (20 points each), constraints (20), role (15), output format (15) and specificity (10). Penalties are then applied for cliché phrasing, hedging language and prompts that are extremely short or long.
What makes a good AI prompt?
A good prompt specifies five things: the role the model should adopt, the context it needs, the specific task, the output format, and hard constraints. Missing any one of these is the most common cause of vague, generic output.
Why does my prompt score low despite working fine?
The score measures reliability, not whether one output was acceptable. An underspecified prompt can produce a good result once and inconsistent results across ten runs. If you use a prompt repeatedly or at scale, the missing parts matter.