Make fake people.
It's fine. Everyone's doing it. Protagons is the open standard for AI character identity. Define a character once, deploy it anywhere.
28
Linguistic Dimensions
287
Structured Fields
865+
Public Protagons
How It Works
Protagons turns "vibes" into variables. Describe a character or paste writing samples, and the Protagons compiler extracts 28 linguistic dimensions — personality, rhetoric, emotion, cognition, ethics — into a single .protagon.json file any LLM can use.
Open Source. No Lock-in.
The schema is open source (MIT). The 865+ public character library is CC-BY-4.0. Download, fork, integrate — the format belongs to everyone.