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Readability

In the status bar

With Readability in status bar on, the status bar names two things for the paragraph you are in, Ease plain · rhythm dynamic: its reading-ease band and its sentence-rhythm band. Hover for the hint; click to open the writing desk with the whole note's profile.

The bands

Reading ease is Flesch, with Wikipedia's bands and hints rewritten for fiction rather than technical prose:

ScoreBandHint
≥ 90Very easyReads like a children's book. Fine for pace; check it isn't thin.
≥ 80EasyConversational. Most commercial fiction sits here.
≥ 70Fairly easyClear and quick. A comfortable default for narrative.
≥ 60PlainPlain English. Literary fiction often lands here.
≥ 50Fairly denseLonger sentences or heavier words. Deliberate? Keep it.
≥ 30DenseDemanding. Readers will slow down — make sure that's the point.
< 30Very denseHard to follow. Split sentences or swap Latinate words for short ones.

Sentence rhythm is the coefficient of variation of sentence length (needs at least three sentences):

CVBandHint
< 0.30MonotoneSentences are all about the same length. Break one short, let one run.
< 0.55SteadyEven rhythm. Good for calm passages; tension usually wants more contrast.
< 0.80VariedHealthy mix of short and long. This is where most strong prose sits.
≥ 0.80DynamicBig swings between short and long. Powerful in action; check it isn't choppy.

Dialogue share is the fraction of words inside straight or curly double quotes:

ShareBandHint
< 15 %Narration-ledLittle dialogue. Fine for interiority or description; scenes may feel told.
< 45 %BalancedDialogue and narration share the page.
≥ 45 %Dialogue-ledMostly talk. Fast to read; make sure the setting and bodies don't vanish.

The desk also shows the grade level and the raw numbers (Flesch score, sentence count, variation %).

What counts as prose

Headings, list items, block-quote markers, tables, code fences, front matter and inline markup are stripped before measuring — they are not the writer's sentences and would skew every number. The same proseParagraphs pass feeds the scene outline and the story map.

MIT licensed. Concreteness norms CC-BY (Brysbaert et al.).