mark-text-stats

Send any text — get back a full statistics report: word/sentence/paragraph counts, vocabulary richness, average sentence and word length, Flesch Reading Ease and Flesch-Kincaid grade level, reading time estimate, top-10 most frequent words, and a list of overly long sentences. No LLM, no network, deterministic. Works for English text. Input: plain text string or JSON {"text": "..."}. Great for content QA, readability checks, and editorial analysis.