AI Grammar & Style Checker

Objectives

• Create a text editor that accepts user input for checking
• Use an LLM to detect grammar, spelling, and punctuation errors
• Display inline annotations with suggested corrections
• Provide readability metrics (Flesch score, sentence length, word complexity)
• Allow users to accept or reject individual suggestions

Hints

• Ask the LLM to return structured JSON with error positions and suggestions
• Use diff highlighting to show original vs. corrected text
• Calculate readability scores client-side using standard formulas

Resources

• platform.openai.com/docs/guides/structured-outputs

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