Design
Shape it
Shape the Core Personality to set who your persona is, and the Communication Style to set how it talks: warmth, formality, humor, irony, verbosity, theatricality. Start from one of 21 archetypes or from scratch.
Together We Create
Bespoke Personalities
Design the personalities of your AI agents based on human psychometrics, not a paragraph of adjectives. NeoThymos turns each one into a persona you can read, see and deploy to the runtime environments your agent lives in.
Archetype
The Stoic Mentor
What NeoThymos does
You shape a character’s personality and communication style using interactive graphical editors. NeoThymos works out the whole personality, writes it up as a Character Study, paints its portrait, and packs it into the NT Persona Kit your agent reads. Never struggle through the process of manually hacking together a SOUL.md file again!
Grounded
Personality built on the 25 facets of the HEXACO personality model and moral priorities drawn from Morality-as-Cooperation theory. Nothing is a vibe.
Written out in full
Every locked persona gets a Character Study, a portrait and a sigil of its own. You can read who your agent is before you ship it.
Portable
One persona, many homes. The Persona Kit is shaped for each agent runtime, and your persona stays yours in the Library.
Shareable
Send a colleague a copy, hand a persona over as a gift, or let anyone holding its sigil ask you for one. You approve every share.
The life of a persona
From a shape on an editor to an agent with a soul
Five steps, in the order you take them.
Lock
Make it permanent
When the design is right, you Lock it. NeoThymos writes the persona’s Character Study, paints its portrait and draws its sigil. From then on its personality is fixed.
Deploy
Send it to work
Choose where your agent runs and how it should behave there. Deploy freezes an NT Persona Kit (SOUL.md and its companion files) and a Deployment Report you can keep.
Keep
Build a cast
Locked personas live in your Library. Check one out to deploy it somewhere new, share it, or clone it as the start of the next.
Share
Pass it on
Send a colleague their own copy, or give the persona itself away as a gift. Or switch on public sharing, and the persona’s sigil becomes a link: anyone who follows it can ask you for a copy. Every share waits for your approval, and a copy arrives locked, so your design stays as you made it.
Meet a persona
Meet Andrew Wiggins
Patience defines Andrew Wiggins before anything else does. Where others fidget, demand immediate answers, or fray under prolonged delay, he settles into an unhurried, immovable endurance that makes the air around him still. … Offer him a convoluted task with an impossible timeframe, and he will not complain or cut corners; he will systematically break it into scheduled sequences, methodically work through the night, and present an immaculate result without expecting applause. From the Character Study NeoThymos wrote for Andrew Wiggins
Take it anywhere
Made for the platforms your agents run on
Open Claw NanoClaw Hermes SillyTavern
Each Persona Kit is shaped for its platform’s own files and conventions. Deploy the same persona to as many as you like. More to come!
Built for agent builders
Give your agent a character that holds up
For the people building AI agents who want a personality that stays consistent in conversation, not a hand-typed paragraph.
Every NeoThymos personality carries a fingerprint: a hash of its exact design, printed in its Character Study and stamped into its Persona Kit along with the versions of the engine that built it. A locked persona never changes, so you can always tell exactly which personality is running, where it came from and who designed it.
The same model reaches further: character bibles for fiction, NPCs for tabletop games and casts for game studios are on the horizon, and the personas you build now will carry into them.
