myadmin-plugin-installer

Creates a new Composer command extending BaseCommand in src/Command/, registers it in CommandProvider.php, and scaffolds a matching PHPUnit test. Use when user says 'add command', 'new composer command', 'create myadmin command'. Do NOT use for modifying existing commands or non-command classes.

Adds a new MyAdmin package type to Installer.php supports() and configures install path routing. Use when user says 'add package type', 'support new type', 'new installer type', 'add myadmin- type'. Do NOT use for changing existing type behavior or modifying TemplateInstaller standalone logic.

Writes PHPUnit 9 tests following the project's ReflectionClass-based pattern. Uses newInstanceWithoutConstructor() stubs, tests interface implementation, method visibility, and parameter counts. Use when user says 'add tests', 'write test', 'test coverage for'. Do NOT use for running existing tests.