Author here. I built this in a few hours after the Claude Code leak.
I've been working on my own coding agent setup for a while. I mostly use pi [0] because it's minimal and easy to extend. When the leak happened, I wanted to study how Anthropic structured things: the tool system, how the agent loop flows, A 500K line codebase is a lot to navigate, so I mapped it visually to give myself a quick reference I could come back to while adapting ideas into my own harness and workflow.
I'm actively updating the site based on feedback from this thread. If anything looks off, or you find something I missed, lmk.
[0] https://pi.dev/
This is nice, I really like the style/tone/cadence.
The only suggestion/nit I have is that you could add some kind of asterisk or hover helper to the part when you talk about 'Anthropic's message format', as it did make me want to come here and point out how it's ackchually OpenAI's format and is very common.
Only because I figure if this was my first time learning about all this stuff I think I'd appreciate a deep dive into the format or the v1 api as one of the optional next steps.
Can you give me more info about your own agentic setup ?
How about releasing your own source code? It is a beautiful site, love the UX as well as functionality.