sourcekit

There are also frequent SourceKit crashes, random crashes to the desktop, and incredibly laggy typing and auto-completion.

For example, check how different compiler diagnostics and suggestions are when using Xcode vs SourceKit LSP.

Swift 1.2 has been a massive improvement with incremental compiling and the SourceKit HUD not flickering in my face every few minutes.

SourceKit crashed sometimes (disabling syntax highlight and autocomplete), but it didn't cause much headache.

It also doesn't help that SourceKit crashes often while doing crazy things with types.

The SourceKit LSP server has worked fine for me, although I admit I spend most time in Xcode.

And I have the swift-lsp plugin in Claude Code, there's a routine baseline of SourceKit errors ignored.

Swift SourceKit LSP + VSCode is actually pretty good these days.

The single biggest component is the toolchains (Swift, SourceKit, etc).

Writing Swift feels good, and once you make a habit of avoiding code smells that trip up SourceKit, syntax coloration and all that works well enough too.

SourceKit keeps crashing on me (every 30 minutes).

For a better situation look at Apple’s sourcekit.

Sourcekit crashes was the biggest annoyance, ughh.