Deterministic linting
Rule-based prompt diagnostics that behave more like ESLint than a chatbot.
Is your prompt actually good?
Paste or write your prompt below to evaluate prompt quality, score it instantly, see what is missing, and improve your prompt online when you want a stronger version.
700+ people have tried Prompt Lab · 300+ prompts analyzed.
Write → Analyze → ✨ Improve → Save → Reuse
Prompt Workspace
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Scores
Six core parameters are visible before login. Sign in to unlock the full ten-parameter breakdown.
Overall score
0
Needs Work
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Core parameters
Intent
0Defines how clearly the goal of the prompt is expressed.
Task
0Measures whether the requested action is explicit and executable.
Role
0Checks whether a persona or expertise level is defined for the response.
Constraints
0Measures how well limits and instructions are defined.
Audience
0Measures how clearly the target reader or user is identified.
Tone
0Measures whether the desired communication style is clearly defined.
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Unlock the full ten-parameter score breakdown, tooltips, and saved analysis history.
Improved Prompt
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Save improved prompt
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Improved prompt tokens: 0
Scores
Six core parameters are visible before login. Sign in to unlock the full ten-parameter breakdown.
Overall score
0
Needs Work
●
Core parameters
Intent
0Defines how clearly the goal of the prompt is expressed.
Task
0Measures whether the requested action is explicit and executable.
Role
0Checks whether a persona or expertise level is defined for the response.
Constraints
0Measures how well limits and instructions are defined.
Audience
0Measures how clearly the target reader or user is identified.
Tone
0Measures whether the desired communication style is clearly defined.
See More Parameters
Unlock the full ten-parameter score breakdown, tooltips, and saved analysis history.
Reliable rewrites
Template-driven improvements that preserve intent while tightening structure.
Developer-first workflow
Keyboard-friendly interactions, score panels, and quick iteration loops.
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