Dart

Execute `dart analyze` to identify warnings and errors, and use `dart fix --apply` to automatically resolve mechanical lint issues. Use during development to ensure code quality and before committing changes.

Write and organize unit tests for functions, methods, and classes using `package:test`. Use when creating new logic or fixing bugs to ensure code remains correct and regression-free.

Uses get_runtime_errors and lsp to fetch an active stack trace, locate the failing line, apply a fix, and verify resolution via hot_reload.

Workflow for fixing package version conflicts. Use this when `pub get` fails due to incompatible package versions.

Use switch expressions and pattern matching where appropriate

Collect coverage using the coverage packge and create an LCOV report

Define and generate mock objects for external dependencies using `package:mockito` and `build_runner`. Use when unit testing classes that depend on complex external services like APIs or databases.

Replace the usage of `expect` and similar functions from `package:matcher` to `package:checks` equivalents.

Entrypoint structure, exit codes, cross-platform scripts. Use when building command line utilities, scripts, or applications.