session-samurai

Creates a new SessionHandlerInterface implementation in src/. Scaffolds all 9 required methods (open, close, read, write, destroy, gc, create_sid, validateId, updateTimestamp) with correct PHP 8.0+ return types and secure create_sid(). Use when user says 'add handler', 'new backend', 'implement session handler for X', or creates a file in src/. Do NOT use for modifying existing handlers.

Runs the full composer test suite (phpcs + phpstan + phpunit) and interprets failures for the session-samurai project. Use when the user says 'run tests', 'check code', 'does it pass', 'verify my changes', or before committing. Knows phpcs uses phpcs.xml (PSR-12 with exclusions), phpstan uses phpstan.neon (level: max, src/ only), and phpunit bootstraps via tests/Bootstrap.php with optional TestConfiguration.php. Do NOT use mid-refactor when tests are intentionally broken.

Creates a PHPUnit test class in tests/src/ for a SessionHandlerInterface implementation. Use when user says 'add tests', 'write tests for handler', or when a new handler is created without tests. Generates testOpen, testClose, testRead, testWrite, testDestroy, testGc, testCreateSid, testValidateId, testUpdateTimestamp following MySessionHandlerTest.php patterns. Do NOT use for non-handler test classes or general PHPUnit scaffolding.