Readability

Takes your text and runs it through multiple readability formulas at once: Flesch Reading Ease, Flesch-Kincaid Grade Level, Gunning Fog, and SMOG. You get actual scores with interpretation, plus statistics like word count, sentence length, and complex word percentage. Handy when you're writing documentation, marketing copy, or anything where reading level matters and you want objective numbers instead of guessing. The output includes specific recommendations like which sentences to shorten or complex words to simplify. Better than running text through four different calculators separately, and the interpretation guide helps you understand what a Flesch score of 65 actually means for your audience.

Install to Claude Code

npx -y skills add humanizerai/agent-skills --skill readability --agent claude-code