I’m seeing a reproducible issue in both Xcode 26 and Xcode 27 where Coding Assistant appears to stop autocompleting when a project contains a larger number of Swift Package dependencies.
Symptoms:
- Autocomplete suggestions from Coding Assistant stop appearing.
- File targeting with @ stops working.
- The issue typically appears shortly after opening the project
- If I start a brand-new chat immediately after opening the project, Coding Assistant sometimes works briefly before failing
- Reducing or removing Swift Package dependencies fixes the issue
I’ve created a sample project that reproduces the problem and have also filed Feedback Assistant report: FB23341243
The issue seems related to package count or project complexity rather than any specific package, although I haven’t yet identified the exact threshold that triggers it.
Has anyone else run into this or has anyone found a workaround?