See the anatomy of your prompt: which of the six building blocks (role, task, context, constraints, format, examples) it contains, and which are missing. A structural read, not a grade.
Strong prompts tend to contain the same building blocks: a role to set tone and expertise, a clear task, the context to work from, constraints (length, style, rules), an explicit output format, and sometimes examples. This x-ray detects which blocks are present so you can see your prompt’s shape at a glance and spot what’s missing, the format and constraints are the ones people forget most.
This is a structural read, not a verdict. A missing block isn’t automatically wrong, some great prompts are deliberately minimal. It uses pattern matching, not a model, so it’s instant and private. Pair it with the Prompt Linter for quality checks.
The x-ray shows structure (which parts exist). The linter flags problems (vague words, conflicts, missing format). Use them together.
No. Detection runs entirely in your browser, so the prompt stays on your device.
Lint quality with the Prompt Linter, compare versions with Prompt Diff, or pin output shape with structured outputs.