Changelog

AI Beta Reader Personas V1 — four readers for your draft

3 min read T Tim

This week, Slima’s most important signature feature lands: AI Beta Reader Personas.


Why we built Beta Reader

One of the deepest pain points in long-form writing — nobody reads your unfinished draft.

  • Family doesn’t really count as a reader
  • Friends are afraid to hurt your feelings
  • Your editor is waiting for the finished manuscript

But you need feedback now. Does the opening hook? Is that turn too abrupt? Does this character feel real?

Beta Reader is a test reader who’s always available, never minds your pace, and actually tells you how it felt.


V1 ships with 4 personas

Each persona is a reader with a fully-defined personality:

  • Different reading preferences — some love slow-burn suspense, others bail when openings drag
  • Different pet peeves — some skip info-dumps, others get pulled out by jargon
  • Different reading speeds and attention patterns — modeling real readers’ chapter-to-chapter memory decay

V1 ships with 4 preset personas — each has their own bio, reading list, and preferences.

Use cases:

  • Send your chapter to one persona
  • Or to all 4 in parallel for cross-reference

Kindle-style ratings

Every reader, after finishing a chapter, gives you:

  • 1–5 star overall rating (Kindle review style — scannable at a glance)
  • ✅/❌ “Would I read the next chapter?” binary call (the most important signal)
  • 📍 “Why I didn’t like this part” with specific quotes (not vague “pacing’s off”)

If a reader bails, they tell you exactly which paragraph, which line.


How to use it

  1. Open a chapter, click Beta Reader in the sidebar
  2. Pick one of the 4 personas
  3. Click Send to Reader
  4. About 30 seconds later, the full reader report comes back

This is V1. Persona count and behavioral depth keep expanding from here.


Next week

Slima MCP Server launches — read and write your books from Claude Code, Cursor, and claude.ai.

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