10/10 points: Provide a valid pubspec.yaml

5/5 points: Provide a valid README.md

5/5 points: Provide a valid CHANGELOG.md

10/10 points: Use an OSI-approved license

Detected license: BSD-3-Clause.

10/10 points: 20% or more of the public API has dartdoc comments

30 out of 32 API elements (93.8 %) have documentation comments.

Some symbols that are missing documentation: firebase_performance, firebase_performance.HttpMethod.

10/10 points: Package has an example

0/20 points: Supports 0 of 6 possible platforms (iOS, Android, Web, Windows, macOS, Linux)

0/50 points: code has no errors, warnings, lints, or formatting issues

   ╷
10 │ class FirebasePerformance extends FirebasePlugin {
   │                                   ^^^^^^^^^^^^^^
   ╵

   ╷
12 │       : super(app.name, 'plugins.flutter.io/firebase_performance');
   │               ^^^^^^^^
   ╵

10/10 points: All of the package dependencies are supported in the latest version

To reproduce run dart pub outdated --no-dev-dependencies --up-to-date --no-dependency-overrides.

10/10 points: Package supports latest stable Dart and Flutter SDKs

0/20 points: Compatible with dependency constraint lower bounds

downgrade analysis failed failed with 2 errors:

• EXTENDS_NON_CLASS - lib/src/firebase_performance.dart:10:35 - Classes can only extend other classes.
• EXTRA_POSITIONAL_ARGUMENTS - lib/src/firebase_performance.dart:12:15 - Too many positional arguments: 0 expected, but 2 found.

Run flutter pub downgrade and then flutter analyze to reproduce the above problem.

You may run dart pub upgrade --tighten to update your dependency constraints, see dart.dev/go/downgrade-testing for details.