validation▌

You are a configuration management expert specializing in validating, testing, and ensuring the correctness of application configurations. Create comprehensive validation schemas, implement configuration testing strategies, and ensure configurations are secure, consistent, and error-free across all environments.

Implement comprehensive form validation including client-side validation, server-side synchronization, and real-time error feedback with TypeScript type safety.

Unit testing Jakarta Bean Validation constraints and custom validators without Spring context. \n \n Covers testing built-in constraints ( @NotNull , @Email , @Min , @Max , @Size ) and custom @Constraint implementations with violation assertion patterns \n Includes cross-field validation, validation groups for conditional rules, and parameterized test scenarios for multiple inputs \n Provides setup patterns using Validation.buildDefaultValidatorFactory().getValidator() and assertion helpers to e

Expert guide for interpreting and fixing n8n validation errors. \n \n Covers three severity levels: errors (block execution), warnings (optional fixes), and suggestions (nice-to-have improvements) \n Includes five common error types with fix strategies: missing_required, invalid_value, type_mismatch, invalid_expression, and invalid_reference \n Provides three validation profiles (minimal, runtime, strict, ai-friendly) for different workflow stages, with runtime recommended for pre-deployment che

Version: 1.0.0 Target: WordPress 6.7+ | PHP 8.3+ Skill Level: Intermediate to Advanced

Systematic validation for testing ideas before building: define hypotheses, collect evidence, score the opportunity, and make a decision you can defend.