Academy/Getting started/Set up your agent's Persona
GuideBeginner

Set up your agent's Persona

How your agent opens a conversation, its tone, how much it says, and the languages it replies in — with a live preview so you see the effect immediately.

AAssistantLabs Team
Academy
4 min read Updated Jul 2026

Why persona

Your agent's persona is how it comes across to customers — the way it opens a chat, its tone, how much it says, and which languages it replies in. Get it right and every conversation feels like your shop, not a robot.

The opening message is the one line every customer sees. Everything else — tone, length, languages — shapes how the rest of the chat feels. A live preview shows the effect the moment you change a field.

Set your persona

Two ways to set it — tell Logos in chat, or fill it in under Settings. Both write to the exact same place; pick whichever feels easier.

The fastest way is to just talk. Open Logos and describe your business in a sentence — it writes your persona (and the rest of your agent's knowledge) as you go.

Open "Logos" from the top navigation.
Open Logos →
Describe your business once. Logos proposes each change as a card you approve.

Prefer to set it by hand? Persona lives under Build → Identity.

Click "Build" at the top.
Persona sits under "Identity," alongside Overview and Business Details.
Open Persona Settings →
Opening message, tone, and emoji level set — the preview reflects all three immediately.

Either way you land in the same place — start in Logos and jump into Settings to fine-tune a field, or the other way around. Neither path is more "correct."

The fields that matter

However you set it, a few fields punch above their weight:

Watch these: the response-length slider and supported languages matter more than they look — a too-long default reads as robotic over WhatsApp, and an unselected language means the agent falls back to your default even when a customer writes in it.
  • Opening message written in your own voice, not the placeholder
  • Tone selected — or typed in your own words
  • Every language your customers actually write in is selected
  • Sent yourself a test message and checked the preview matches
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