Sourcekit-xcode-bsp — Build Server Protocol support for native Xcode projects

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Hi everyone! We are releasing sourcekit-xcode-bsp — an open-source (Apache 2.0) Build Server Protocol server that brings native Swift code intelligence to Xcode projects (.xcodeproj/.xcworkspace) in any LSP-capable editor: Cursor, VSCode, or anything else that speaks BSP.

Under the hood,sourcekit-xcode-bsp talks directly to swift-build's build service — the same engine Xcode itself uses — so sourcekit-lsp gets accurate, up-to-date project info straight from the source.

What it gives you:

  • Completion, jump-to-definition, and diagnostics for standard multi-target, multi-platform .xcodeproj/.xcworkspace projects without building
  • Automatic workspace reloading
  • An interactive sourcekit-xcode-bsp init command that writes your buildServer.json for you

Currently, it's tested to work with Xcode 26+. To install

brew tap slime-studio/tap
brew install sourcekit-xcode-bsp

Full setup and configuration docs: https://github.com/slime-studio/sourcekit-xcode-bsp

This is still early, but we would appreciate feedback and bug reports!

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