Readability & Tone

The Readability & Tone tab on a story's structure screen reads through all of your scene prose and surfaces a handful of rough craft signals — how easy the writing is to read, the rhythm of your sentences, the balance of dialogue and narrative, the filler words you lean on, and how pacing shifts across the book. They are quick estimates for catching a drift, not scores to chase, and they update whenever you reopen the tab. Until you have written some prose the tab simply says there is nothing to analyse yet.

Readability

Reading ease — a Flesch reading-ease score from roughly 0 to 100, where higher is easier to read, shown with a plain-English band (for example "fairly easy" or "difficult").
Reading grade — the approximate US school grade the prose suits.

Both are estimated from average sentence length and syllable counts, so treat them as a rough gauge — fine for spotting that a passage has drifted denser or lighter, not an exact measurement.

Sentence rhythm

Average sentence — your mean sentence length, in words.
Length variation — the spread of your sentence lengths. A higher spread reads as more dynamic; a very low one can feel monotonous, every sentence the same length.
Sentences and Words — the totals the figures are drawn from.

Sentence splitting is approximate, so these are ballpark figures rather than exact counts.

Dialogue vs narrative

A bar showing the share of your words inside "quotes" versus outside them. Very high narrative can read as exposition-heavy; very high dialogue as "talking heads". It detects double-quote dialogue only, so single-quote or dashed dialogue is counted as narrative.

Filler & filter words

The intensifiers (very, just, really) and filter verbs (felt, saw, seemed) that often weaken prose, shown as a total, a rate per 1,000 words, and a ranked list of your most-used offenders. These are worth a second look, not automatically wrong — sometimes just is the right word.

Pacing across scenes

A strip in which each bar is one scene, in reading order: its width is the scene's length and its height is its average sentence length. Taller stretches run on longer sentences and read slower and denser; shorter bars read faster. A dashed line marks the story average, so you can see which scenes pull away from it.

A note on the numbers

Everything here is automated and approximate — syllable counting, sentence splitting, and dialogue detection are all estimates. The point is to help you notice a pattern worth examining, never to pass judgement on your writing.