Dart Fix Runtime Errors skill: what it does and how to install it

What it does. Locates Dart failures from an active stack trace or static analysis, then applies automated dart fix changes and manual fixes for null safety, type mismatches and invalid overrides. It verifies the result with dart analyze, dart test and, for runtime failures, hot reload.

When to use it. Use it to resolve Dart analyser errors or runtime failures in a Flutter or Dart project. It also covers sound typing, null safety and exception handling guidance.