What I learned building pi, an opinionated and minimal coding agent
Summary
A detailed write-up by Mario Zechner outlining the design, decisions, and lessons learned while building pi, an opinionated and minimal coding agent harness. It covers the four essential LLM APIs, a context-handling strategy across providers, a lightweight terminal UI, a minimal toolset, and architectural choices that prioritize observability, simplicity, and control over workflows. The piece also includes notes on benchmarking, security trade-offs, and future roadmap ideas.