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503-frameworks-micronaut-validation

503-frameworks-micronaut-validation

github.com/jabrenaDevelopment456264 installsUpdated 1d ago
Repository

About 503-frameworks-micronaut-validation

A skill for applying Micronaut validation guidance at HTTP API boundaries. It covers DTO and controller validation, error responses, and a compile-before-change, verify-after workflow.

Key features

  1. 01Bean Validation on DTOs and commands
  2. 02@Valid and @Validated in controllers
  3. 03Validation groups and custom validators
  4. 04Mapping failures to 400 responses
  5. 05Predictable validation error payloads

Use cases

  1. 01Add validation to Micronaut APIs
  2. 02Review request validation rules
  3. 03Create custom validation constraints

Install

Copy the command and run it in a terminal.

$npx skills add https://github.com/jabrena/plinth --skill 503-frameworks-micronaut-validation

After installing, type/503-frameworks-micronaut-validationin Claude Code to confirm it loaded.

Bundled filesreferences/503-frameworks-micronaut-validation.md

Details

From the project README

Micronaut Validation Guidelines

Apply Micronaut validation best practices at HTTP API boundaries.

What is covered in this Skill?

  • Bean Validation annotations on DTOs and command models
  • @Valid / @Validated usage in Micronaut controllers
  • Validation groups and custom validators
  • Consistent mapping of validation failures to 400 responses
  • Safe and predictable validation error payloads

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 Micronaut
  • Review Micronaut validation rules
  • Improve request validation in Micronaut REST APIs
  • Add custom validation constraints in Micronaut
  • Validate Micronaut configuration properties
  • Improve constraint violation handling in Micronaut

Workflow

  1. Read reference and assess project context

Read references/503-frameworks-micronaut-validation.md and inspect the current project setup before proposing changes.

  1. Gather scope and decide target improvements

Identify requested outcomes, constraints, and the minimum safe set of changes to apply.

  1. Apply framework-aligned changes

Implement or refactor validation-related configuration/code following the reference patterns and project conventions.

  1. Run verification and report results

Execute appropriate build/tests and summarize what changed, what was verified, and any follow-up actions.

Reference

For detailed guidance, examples, and constraints, see references/503-frameworks-micronaut-validation.md.

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