SOULS for AI Agents: A Community-Driven Personality Library

A developer frustrated with recreating agent personalities from scratch has launched SOUL.md, an open-source repository that collects curated personality files for AI coding agents. Each "soul" is a single file that gives an agent a distinct, researched personality — speech patterns, vocabulary, thought process, even political beliefs — so you can swap them in without manual prompt engineering every time.

What's inside

The repo currently ships five souls, each built from dedicated research into the character or thinker:

• Jarvis — the familiar Iron Man assistant
• Gojo — from Jujutsu Kaisen
• Eren Yeager — Attack on Titan
• René Descartes — philosopher
• Rapper — streetwise lyrical vibe

Each was created by researching online how the personality speaks, what words they use, how they think, and their worldview. The goal is to move beyond generic assistant tones.

How to contribute

The creator explicitly wants this to be a community library, not a solo project. Anyone can submit a new soul file to the repository:

https://github.com/madhvantyagi/SOUL.md

The only rule: make it real. Give it a personality someone would pick on purpose — not another generic assistant.

Who it's for

Developers using AI coding agents who want to quickly switch between diverse agent personalities without writing custom system prompts each time.