runtimeIssues

Reads SwiftUI’s own runtime-issue log inside the process. Aggregated into a periodic window rather than one reading per occurrence, with a count for how many times each violation happened in that window.


Delivery	stream, interval
Mechanism	osLogStore
Requires	iOS 17+, basset 0.1.1+

Real output from basset request get, captured against a running app:

CAPTURED                  ELAPSED  INSTRUMENT

launch 4001672085922274323
2026-08-23T15:07:08.854Z  +0.0s    swiftui.runtimeIssues(swiftUIRuntimeIssue)
├─ windowNanoseconds  15000000416
├─ logSubsystem       com.apple.runtime-issues
├─ logCategory        SwiftUI
├─ logMessage         Publishing changes from background threads is not allowed; make sure to publish values from the main thread (via operators like receive(on:)) on model updates.
└─ occurrenceCount    2

Getting Started

SDK

CLI

Instruments

Reference