Writing Lisp Is AI Resistant and I'm Sad (blog.djhaskin.com)

Dan Haskin describes trying to use agentic AI to develop a Lisp project and finding that AI struggles much more with REPL-driven workflows than with Python, leading to higher cost and lower “signal” for each attempt. He built an MCP wrapper (tmux-repl-mcp) to make REPL interaction easier, but still found Lisp coding with AI to be frustrating and time-consuming. He argues that AI’s economics and API latency favor languages and tooling with less REPL dependence, and speculates Lisp may need new adaptations to stay competitive in the AI era.