Pi Coding Agent: The Open-Source Tool That Modifies Itself #picodingagent #claudecode #opensourceai

Pi is an open-source coding agent with 4 tools, a system prompt under 1,000 tokens, and one wild idea the agent can modify itself. I watched the founder Mario Zechner explain why he stopped using Claude Code, tried Pi for myself, and rebuilt my full Claude Code workflow inside it. Here's what's different, what's better, and the one reason I can't fully switch yet. 🔗 Resources mentioned in this video Pi (install): https://pi.dev Pi GitHub: https://github.com/badlogic/pi-mono Mario's talk on AI Engineer: https://www.youtube.com/watch?v=RjfbvDXpFls&t=184s Mario's blog post on building Pi: https://mariozechner.at/posts/2025-11-30-pi-coding-agent/ Medium article for this : https://medium.com/@urvvil08/i-tried-pi-after-watching-its-founder-explain-why-he-quit-claude-code-7b747c37fa22 📌 Chapters 0:00 Why I tried Pi 0:22 Mario's pitch: why Claude Code got bloated 1:28 Installing Pi, Login, models, and subscriptions 2:46 3 things that are genuinely different in Pi 4:44 The vision that sold me 5:06 My Claude Code orchestrator, rebuilt as a Pi extension 7:21 Watching Pi build its own status widget 7:56 How skills work in Pi 8:21 Pi vs Claude Code — honest comparison 9:38 Pi sits next to Claude Code (for now) 🛠️ What this video covers Pi installation and login flow, customizing the system prompt, session forking with /tree, the four-tool philosophy, building a TypeScript extension that runs an issue-to-PR workflow with human gates, asking Pi to extend itself with a status bar widget, skills directory setup, side-by-side comparison with Claude Code on permissions, MCP, sub-agents, plan mode, and the Anthropic subscription policy that's keeping me on Claude Code for now. 🤔 Should you switch to Pi? If you're on a ChatGPT subscription, Copilot subscription, OpenRouter, or running local models with Ollama yes, try it. If you're on an Anthropic Pro/Max plan, Pi billing happens as extra usage, not against your plan limits, so the math is different. I cover this in detail at 10:30. Music : Sound Effect by DRAGON-STUDIO from Pixabay PulseBox-lofi-melody - PulseBox from Pixabay 💬 Drop a comment: which extension would you build first in Pi? #picodingagent #claudecode #opensourceai