#validation

`koa-x-router` is a library that extends the functionality of `@koa/router` by providing validation and automatic API documentation features. It simplifies the process of defining routes, validating request data, and generating API documentation.

The single source of canonical truth — immutable, verifiable knowledge for humans and AI.

Strongly Typed native JS without a hard requirement for transpiling. What TypeScript should have been.

Validate requests and objects with reusable Laravel rulesets.

A tool set for CSS including fast detailed parser, walker, generator and lexer based on W3C specs and browser implementations

The web-utils-kit package provides a collection of well-tested and thoroughly documented utility functions for various web development needs. Each function adheres to a strict coding style and best practices to ensure consistency and maintainability.

Port av NoCommons-biblioteket for .NET

This package is an alternative to the Laravel built-in validation rules exists and unique. It uses Eloquent models instead of directly querying the database.

Extensions of Flunt for Brazilian projects

JSON Schema validator for PHP

A TypeScript library for validating and securing LLM prompts — PII, jailbreak, prompt injection, profanity, toxicity and relevance guards. Zero-config defaults, extensible with custom patterns.

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Protobuf message validation for prost/Tonic with CEL evaluation. Full bufbuild conformance: 2854/2854.

Request validation for symfony

An internationalized hostname validator as defined by RFC5890, RFC5891, RFC5892, RFC5893, RFC3492 and UTS#46

Stage-gate framework that forces coding agents to follow real engineering SOP: spec -> tests -> implementation, with verifiable evidence required at every step. 13 language adapters, tool interception, HMAC-signed state.

Fast, dependency-free Go package to infer binary file types based on the magic numbers header signature

High-performance .NET JSON Schema validator implementation based on System.Text.Json. Supports Draft 7, 2019-09, and 2020-12; includes fluent validation and schema creation from .NET types.

Modern, type-safe OpenAPI schemas in Python using Pydantic 1.8+ and 2.x

CLI + Claude Code plugin for managing markdown docs with YAML frontmatter — index, query, validate, graph, lifecycle-manage plans/ADRs/RFCs, Notion sync, AI summaries

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Unified CLI for UluOps - validation tracking and registry management

[READ-ONLY] Validation library from CakePHP. This repo is a split of the main code that can be found in https://github.com/cakephp/cakephp

Headless React phone input with full world country codes, libphonenumber-powered formatting/validation, and TypeScript. Zero styling opinions.

A library for validating and modeling user input.

Rigorous validation for synthetic financial time series — 19 financial stylized-fact metrics, used as the FinBench scoring backend

🧰 Handy PHP functions

A developer CLI tool that manages .env files, detects secret leaks, syncs env drift across teammates, and validates environment parity between local/staging/prod all from your terminal. Written in Go.

This repository contains a Node.js utility for detecting disposable email addresses. It helps identify whether an email address belongs to a disposable email provider, aiding in the prevention of spam and unwanted sign-ups.