303-frameworks-spring-boot-validation

Solid

Use when you need to design, review, or improve validation in Spring Boot applications — including Bean Validation on request DTOs, @Valid/@Validated at API boundaries, constraint groups, custom constraints, @ConfigurationProperties validation, nested DTO validation, and consistent validation error handling. This should trigger for requests such as Add validation support in Spring Boot; Review Spring Boot validation rules; Improve request validation in Spring Boot REST APIs; Add custom Bean Validation constraints in Spring Boot; Validate configuration properties in Spring Boot. Part of cursor-rules-java project

AI & Automation 393 stars 78 forks Updated today Apache-2.0

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Quality Score: 92/100

Stars 20%
86
Recency 20%
100
Frontmatter 20%
70
Documentation 15%
100
Issue Health 10%
50
License 10%
100
Description 5%
100

Skill Content

# Spring Boot Validation Guidelines Apply Spring Boot validation best practices at API boundaries. **What is covered in this Skill?** - Bean Validation annotations on DTOs and command models - @Valid / @Validated on controllers and method parameters - Validation groups for create/update workflows - Custom constraint annotations and validators - Consistent 400 error responses for validation failures **Scope:** Apply recommendations based on the reference rules and good/bad examples. ## Constraints Before applying validation changes, ensure the project compiles. After improvements, run full verification. - **MANDATORY**: Run `./mvnw compile` or `mvn compile` before applying any change - **SAFETY**: If compilation fails, stop immediately - **VERIFY**: Run `./mvnw clean verify` or `mvn clean verify` after applying improvements - **BEFORE APPLYING**: Read the reference for detailed rules and examples ## When to use this skill - Add validation support in Spring Boot - Review Spring Boot validation rules - Improve request validation in Spring Boot REST APIs - Add custom Bean Validation constraints in Spring Boot - Validate configuration properties in Spring Boot - Improve nested DTO validation in Spring Boot ## Workflow 1. **Read reference and assess project context** Read `references/303-frameworks-spring-boot-validation.md` and inspect the current project setup before proposing changes. 2. **Gather scope and decide target improvements** Identify requested outcomes, c...

Details

Author
jabrena
Repository
jabrena/cursor-rules-java
Created
1 years ago
Last Updated
today
Language
Java
License
Apache-2.0

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