Hey HN! I built Galatea because I was tired of every AI coding assistant sounding exactly the same.

Galatea generates personality config files for your coding agents. You describe a character (or pick a preset — pirate captain, noir detective, drill sergeant, etc.), and it researches the character using web search + LLM to find authentic speech patterns, mannerisms, and quotes. Then it outputs agent-specific config files you drop into your project.

Supported agents: Claude Code (CLAUDE.md), Cursor (.cursorrules), Gemini CLI (GEMINI.md), Codex, OpenClaw (SOUL.md — this is the agent framework created by the developer OpenAI recently hired), Windsurf, Cline, Roo Code, and Amp.

The research step is the interesting part. Rather than just prompting "talk like a pirate," it actually searches for how the character speaks, their vocabulary, catchphrases, worldview, and weaves that into system instructions that feel surprisingly authentic. A Shakespeare personality doesn't just add "thee" and "thou" — it picks up iambic patterns, specific references, and the right register for the character.

The web app is free to use at galatea.sh. There's also a Python CLI if you want to self-host or integrate it into your workflow. The frontend is open source.

Tech stack: Next.js frontend, FastAPI backend, Claude Haiku for generation (keeps costs low enough to offer free), Brave Search for character research.

I'd love feedback on the generated personalities — are they actually fun to work with? Any characters you'd want to see as presets? And if you try it with an agent I haven't tested much (Amp, Roo Code), I'd especially appreciate bug reports.