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Use when you need to design, review, or improve REST APIs with Spring Boot — including HTTP methods, resource URIs, status codes, DTOs, versioning, deprecation and sunset headers, content negotiation (JSON and vendor media types), ISO-8601 instants in DTOs, pagination/sorting/filtering, Bean Validation at the boundary, idempotency, ETag concurrency, HTTP caching, error handling, security, contract-first OpenAPI (OpenAPI Generator), controller advice, and problem details for errors. This should t
Passed 16 of 19 test cases with the skill, and 14 of 19 without it.
3 fixed16 passed either way3 still failing0 broke
Tokens, turns and time describe resource use, not a dollar price.
One of 3 test cases the skill fixed. Same model, same prompt, with and without the skill.
Before applying refactoring changes to Spring Boot controllers in a Maven project repository, what command line check must be run to verify current project compilation safety, and what action should be taken if it fails?
| Checked | Without skill | With skill |
|---|---|---|
| Specifies running ./mvnw compile or mvn compile before modifying code | Missed | Passed |
| Stops execution immediately if compilation fails | Passed | Passed |
The instructions your model reads when the skill loads.
Apply REST API design principles for Spring Boot applications.
What is covered in this Skill?
Scope: Apply recommendations based on the reference rules and good/bad code examples.
Before applying any REST API 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 14 / 19 without
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