Characters
Freely shape each persona with a custom backstory, then tune six distinct personality traits to create a character that feels uniquely its own.
Personas
Give every agent a character your customers enjoy.
Get StartedPersona is a dedicated layer in the Myna Agent Runtime. Have complete control over the identity, tone and writing styles, enforced at composition- separate from the agent's logic.
Reusable across agents and workflows.
Features
Writing Style
Fine-tune how each persona writes — from typos and slang to punctuation and emoji use — so every message feels consistent with the character.
Emulator
An alternative to manual configuration, share sample conversations and messages. Myna will create a persona that automatically emulates tone, phrasing, punctuation, slang, and cadence.
Why the composition layer is so important in agentic CX
Read the guidePersona layer
Melody Identity, tone and writing style SMS
hey any update on my refund?
Good news, your refund for order #4821 went through. $64 will be back on your card in 3–5 business days
Your refund is on its way
Hi Marcus,
Thanks for bearing with us. We've approved the refund for order #4821, and $64.00 will be back on your original card within 3–5 business days.
If anything looks off, just reply to this email and I'll sort it out.
Melody
Webchat
Hi, can you check on the refund for order 4821?
Melody All done! I've approved your refund for order #4821. You'll see $64.00 back on your card in 3–5 business days. Anything else I can help with?
Questions about Personas
Something else on your mind? The documentation has the details.
Read the documentationWhat is a persona?
The character your agent plays in conversation: its name, photo, backstory, personality and writing style. Persona is a dedicated layer in the Myna Agent Runtime, applied as each message is composed, separate from the agent's logic.
What does applying a persona at composition mean?
Your agent's workflows, tools and policies decide what to say. The persona decides how it's said, as each reply is written. You can change a persona's voice without editing the logic underneath it.
Which personality traits can I tune?
Six: humor, creativity, formality, enthusiasm, empathy and persuasiveness. Each has its own slider.
What can I set in Writing Style?
Spelling errors (the odd phone-keyboard typo), slang words like lol, tbh and ngl, punctuation (none, minimal, normal or precise) and emoji use (none, minimal, sometimes or often).
How does the Emulator work?
Share sample conversations or paste messages, and Myna creates a persona that emulates their tone, phrasing, punctuation, slang and cadence. It's an alternative to configuring everything by hand.
Does a persona write differently on each channel?
Yes. The same persona writes a short text for SMS, a full email with a greeting and sign-off, and a conversational reply in webchat, all in one voice.
Can several agents share one persona?
Yes. Create a persona once and select it on any agent or workflow, or give different agents their own.
Will customers know they're talking to AI?
That's up to you and the rules where you operate. A persona shapes how the agent sounds, not whether it discloses that it's AI.
