beberlei/assert
Lightweight assertion library for validating method arguments and input data in PHP. Provides a fluent, readable API with many built-in rules (string, numeric, email, UUID, collection, etc.), clear exceptions, and easy extensibility for custom constraints.
Architecture fit: Complements Laravel's built-in validation for business logic in service layers (e.g., domain models, repositories) where Form Requests or validation rules are insufficient. However, overlaps with Laravel's HTTP input validation, requiring clear layer separation to avoid duplication.
Integration feasibility: Low. Composer installation is trivial, but "unknown" repository prevents code access, security audits, and dependency tracking. "NOASSERTION" license creates legal uncertainty for commercial use.
Technical risk: Critical. Unverifiable source code and undefined license expose legal, security, and maintenance risks. No public issue tracking or contribution history makes vulnerability assessment impossible.
Key questions:
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