Comment by bob1029
GPT 5.2 in a simple while loop runs circles around most things right now. It was released barely a month ago and many developers have been on vacation/hibernating/etc. during this time.
I give it 3-4 more weeks before we start to hear about the death of agentic frameworks. Pointing GPT5+ at a powershell or C#/Python REPL is looking way more capable than wiring up a bunch of domain-specific tools. A code-based REPL is the ultimate tool. You only need one and you can force the model to always call it (100% chance of picking the right tool). The amount of integration work around Process.Start is approximately 10-15 minutes, even if you don't use AI assistance.
Yes this “REPL/CLI is all you need” realization is exactly what’s behind the wild success of Claude Code and derivative CLI coding agents.