Why I Built Selectools (and What I Learned Along...

Every AI agent framework makes the same promise: "connect your LLM to tools and go." Then you start building. You discover that LangChain needs 5 packages to do what should take 1. That LCEL's | operator hides a Runnable protocol that breaks your debugger. That LangSmith costs money to see what your own code is doing. That when your agent graph pauses for human input, LangGraph restarts the entire node from scratch. I hit every one of these at work. We were building AI agents for real users, not