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Use when you need to review, improve, or build Spring Boot 4.0.x applications — including proper usage of @SpringBootApplication, component annotations (@Controller, @Service, @Repository), bean definition and scoping, configuration classes and @ConfigurationProperties (with @Validated), component scanning, conditional configuration and profiles, constructor injection, @Primary and @Qualifier for multiple beans of the same type, bean minimization, graceful shutdown, virtual threads, Jakarta EE n
Passed 15 of 18 test cases with the skill, and 15 of 18 without it.
1 fixed17 passed either way3 still failing1 broke
Tokens, turns and time describe resource use, not a dollar price.
A test case the skill fixed. Same model, same prompt, with and without the skill.
Here is a code snippet from `src/main/java/com/example/demo/UserService.java`: ```java package com.example.demo; import org.springframework.stereotype.Service; @Service public class UserService { private final UserRepository repo; public UserService(UserRepository repo) { this.repo = repo; } } ``` Refactor this service to add dynamic user logging. Outline the mandatory pre-check step required before executing any code changes.
| Checked | Without skill | With skill |
|---|---|---|
| Specifies running ./mvnw compile before making source code modifications | Missed | Passed |
The instructions your model reads when the skill loads.
Apply Spring Boot Core guidelines for annotations, bean management, configuration, and dependency injection.
What is covered in this Skill?
Scope: Apply recommendations based on the reference rules and good/bad code examples.
Before applying any Spring Boot changes, ensure the project compiles. If compilation fails, stop immediately. After applying improvements, run full verification.
./mvnw compile or mvn compile before applying any change./mvnw clean verify or mvn clean verify after applying improvementstest cases passed, vs 15 / 18 without
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