One nice property of autoformatters: they're a really fast way to do a quick syntax check. Especially with a slow build process, it's a good check for dumb mistakes.
miniblog.
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I like that most LLM UIs show your previous queries prominently.
When figuring out where LLMs are useful in your workflow, it's nice to see what worked well (or not) in the past.
Web search doesn't have this property. I rarely look at what I've previously googled.
Writing a parser that is resilient to syntax errors, and why a parser should always return something: https://duriansoftware.com/joe/constructing-human-grade-parsers
(The latter property is important in e.g. IDEs and it's rarely discussed!)
One interesting property of both stdin/stdout based REPLs and RPC based REPLs is that they need to support asynchronous events.
In both these programs, I don't need to wait until the function is done to see the output printed. It's not sufficient to read-eval-wait-print-loop.
