Yeah, I'm with you on that one. It seems to be a recurring pattern though. The X.ai coding agent harness is 840,000+ lines of Rust - I dug into that here: http

Yeah, I'm with you on that one. It seems to be a recurring pattern though. The X.ai coding agent harness is 840,000+ lines of Rust - I dug into that here: https://simonwillison.net/2026/Jul/15/grok-build/ https://simonwillison.net/2026/Jul/15/grok-build/ Codex is 1.4m of Rust, and that's not including the extra code for the closed source desktop app. Meanwhile Pi is 265,000 lines of TypeScript (130,000 if you exclude tests), so even the agent with a reputation for being smaller is pretty huge.