Assert Laravel Package

Technical Evaluation

Architecture fit: Excellent for internal method contracts in Laravel services, repositories, and domain logic. Complements Laravel's built-in validation (FormRequests) by handling post-input validation where business rules require strict type/sanity checks. Fits the "defensive programming" pattern common in Laravel applications.

Integration feasibility: High. Single Composer dependency with zero configuration. Works out-of-the-box in any Laravel version supporting PHP 7.1+ (which covers all currently maintained Laravel versions). No framework-specific bootstrapping required.

Technical risk: Low. The package is mature (7.6k stars), MIT-licensed, and has no dependencies. Primary risks include: 1) Potential misuse for user-facing validation (should only be used for internal invariants), 2) Unhandled exceptions if not properly caught in exception handlers, 3) Possible performance impact in high-throughput critical paths if overused (though assertions are typically lightweight).

Key questions:

• How will we differentiate between user-input validation (FormRequests) and internal contract validation (this package)?
• What exception handler strategy will we implement for InvalidArgumentException to avoid 500 errors