Validation Rules Laravel Package

Product Decisions This Supports

• Build vs. buy for input validation in authentication flows. The package's origin (2FAS, a consumer 2FA/authenticator product) and description ("validation rules for SDK") suggest it encodes rules for the kinds of inputs an authenticator ecosystem has to validate: phone numbers, verification codes, token/secret formats, and possibly backup-file or pairing payload shapes. A PM facing the same class of work can use it as a reference implementation when deciding whether to write these rules in-house or adopt an existing set.
• Contract consistency between backend and client SDKs. A package explicitly scoped to "SDK" validation is a signal that the org treats validation as a shared contract rather than a backend-only concern. That supports a roadmap decision: define validation once, reuse it across the Laravel API and the mobile/web SDK, and cut the class of defects where the client accepts an input the server rejects (or vice versa).
• Security-adjacent defect reduction. Auth flows are where permissive validation becomes an actual vulnerability or a support burden ("the code field accepts letters," "the phone field strips the wrong characters"). Centralizing rules lowers the cost of fixing a validation bug once instead of per surface.
• Feature scoping for parity and interop. If the roadmap includes importing from or interoperating with 2FAS-style exports, or matching their onboarding validation behavior, this package defines the expected shape of valid input and can anchor an acceptance-criteria doc.
• Dependency risk as a standing roadmap input. With no stars, no listed dependents, and a score of zero, this is effectively an unproven, likely internal utility published to Packagist. Treat it as a pattern to learn from, not a component to standardize on, and record it in the dependency-risk register accordingly.

When to Consider This Package

Consider it when:

• You are building in or adjacent to the authenticator/2FA space and want reference behavior for validating codes, secrets, phone numbers, or backup payloads that matches a real shipping product's expectations.
• You need a thin, low-ceremony ruleset to drop into a Laravel codebase, and you are willing to vendor or fork it so correctness and maintenance are under your control.
• You are already aligned with the 2FAS ecosystem (partner integration, export compatibility, migration tooling) and want byte-for-byte behavioral parity rather than a reimplementation that drifts.
• You are doing a time-boxed spike and want a concrete starting point to compare against your own rules — a reference to diff against, not a long-term dependency.

Look elsewhere when:

• You need proven adoption. No stars, no dependents, no version history signal means no production track record you can point to in a design review. For security-adjacent validation, that matters.
• You need broad, standards-grade coverage. Phone-number validation in particular is a solved problem with well-maintained libraries (portable phone-number metadata) and mature alternatives (framework-native rules, general-purpose validator libraries). Do not adopt a niche ruleset for something a maintained library does better.
• You need a support contract, security response process, or long-term maintenance guarantee. A single-vendor utility with no visible community is a bus-factor risk.
• Your stack is not Laravel/PHP. The value is largely in the Laravel rule integration; outside that, port the semantics rather than the package.
• The rules are trivially re-derivable. If a short set of regexes and length checks covers your cases, writing them in-house with your own tests is cheaper than taking a dependency and its review overhead.

How to Pitch It (Stakeholders)

To executives: Validation logic in authentication flows is small in code and large in consequence — a single permissive rule becomes a security finding or a support queue. This package is a useful reference for how a shipping authenticator product defines "valid input," which lets us align client and server behavior and avoid re-litigating the same rules on every surface. It is not a dependency we should standardize on: it has no visible adoption, no community, and no maintenance signal. Recommendation: use it as an input to our own ruleset, keep the dependency surface at zero, and revisit only if a partner integration requires exact parity.

To engineering: Treat this as an internal-utility-grade artifact. Read it for the ruleset, compare it against our current validation, and port what we need with our own test coverage. If we do take it as a dependency, pin the version, vendor or fork it, and own the tests — the upstream bus factor is one. Where it overlaps with phone-number or locale handling, prefer the established library; where it overlaps with framework-native rules, prefer those. The deliverable from a spike should be a diff against our rules and a list of gaps, not a merged dependency.