For literary agents
A structural read of every manuscript in your queue — pacing, character, prose, voice — in 90 seconds, with the same standards applied to submission #1 and submission #500.
The slush pile gets bigger every year. Reading every manuscript carefully takes hours; reading them quickly means missing the ones that deserve attention. Slushproof reads the whole manuscript — structure, pacing, character agency, prose, voice — against published-fiction benchmarks, so the read in front of you is the one worth your hour. No AI writes anything; we measure, you decide.
Opens a window where you paste up to 2,000 words of any manuscript, click Analyze, and see the results inline — no leaving this page, no signup to try it.
If your agency has fewer than 20 employees, there is no charge for anyone on your team to use Slushproof. That covers every boutique agency and a fair number of mid-size ones. Larger agencies, please get in touch for a per-seat institutional license — the analysis is the same; the operational scale is different.
A structured report covering five lenses, identical for every submission you run:
Structure — Beat placement
Where the act breaks, midpoint, climax, and falling action actually land vs where they should. Save the Cat / Three-Act / Hero's Journey fit detection. Spot the manuscript whose middle is hollow before you commit to reading it.
Pacing — The reader experience
Chapter-by-chapter tension, dead zones, sag patterns. Where readers (and you) will close the book.
Character — Agency audit
Per-character on-page time, dialogue distribution, agency moments, absentee characters. Whether the protagonist is actually driving the plot the query letter describes.
Prose — The texture
Adverb density, passive constructions, qualifier creep, cliché patterns — mapped to chapters, benchmarked against published fiction. The "sentence-level" tells you spot in the first 20 pages, quantified across the whole book.
Voice — Consistency at length
POV consistency, tonal drift, narrative-distance shifts. Whether the writer's voice holds across 80,000 words or fades after Chapter 5.
| Feature | By hand | Slushproof |
|---|---|---|
| Speed | 2–6 hours per manuscript | ~90 seconds |
| Consistency | Drifts across the day, the week, the season | Same standards on manuscript #1 and #500 |
| Memory | "Did Chapter 3 set this up?" | Tracks every beat with total precision |
| Output | Pass/no with maybe a paragraph | Structured report with chapter-level evidence you can paste into feedback |
| AI involvement | None | None. We don't write or rewrite the manuscript. |
| Cost | Reader fees or your hours | No charge for boutique agencies (under 20 employees) |
Every craft principle Slushproof flags is cited to its source — King on adverbs, Gardner on POV, McKee on structure, Strunk on prose. We didn't invent these rules; we measure each manuscript against them. Read the canon →
“Same standards on submission #1 and submission #500.”
— The principle of the platform.