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Comprehensive guidelines, patterns, and best practices for Spring Boot 3.x application development — covering REST APIs, data access, security, observability, async patterns, testing, and production readiness.
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インストールを決める前に、SKILL.md と SkillsMP に表示されている付属ファイルをお読みください。
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npx skills add https://github.com/susamn/aistuff --skill java-spring-framework-genericコマンドは1行のまま表示されます。コピー前に横へスクロールして全体を確認してください。
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SKILL.md を表示中
Manage the dotfiles repository, stow packages, and configure agent skills. Use when adding a skill, modifying the stow setup, or working inside ~/dotfiles.
Practice LeetCode problems in a 3-tab mosaic dashboard (Problem, Intuition, Solution — Python + Go). Starter-seeded with 100 classic problems; add, swap, or remove any problem by URL or description. Use when asked to practice LeetCode, add/swap a coding-interview problem, or open the LeetCode practice dashboard.
Import external skills from Git repositories, local directories, or web URLs into the local skills library, adapting them to house conventions, auditing, and suggesting cross-skill integrations. Use when importing a skill, bringing in an external skill, or adding a skill from GitHub.
| name | java-spring-framework-generic |
| description | Comprehensive guidelines, patterns, and best practices for Spring Boot 3.x application development — covering REST APIs, data access, security, observability, async patterns, testing, and production readiness. |
| version | 2.0.0 |
| kind | guidance |
| triggers | ["work on spring boot project","create spring boot application","spring rest api","spring data jpa","spring security","spring boot backend","spring framework"] |
| intent | execution |
| guardrails | ["Target Spring Boot 3.x (Jakarta EE 10+) and Java 21 LTS unless the project is explicitly pinned to an older version.","Always use constructor injection. Never field injection (@Autowired on fields), and setter injection only for genuinely optional dependencies.","Never expose JPA entities from REST controllers. Use dedicated DTO/record types for request and response payloads.","Annotate service-layer write operations with @Transactional. Never annotate controller methods.","Do not use System.out.println. Use SLF4J with parameterized messages.","Never hardcode secrets. Bind @ConfigurationProperties to environment variables or a secrets manager.","Validate incoming payloads with Jakarta Bean Validation (@Valid / @Validated) at the controller boundary — never in the service layer.","When starting a new app, check for an existing OpenAPI schema and build to it. Starting from scratch, write the schema before the implementation.","Always use MockMvc for testing REST controllers.","Use SDKMAN environment variables (JAVA_HOME, JAVA21_HOME, SDKMAN_CANDIDATES_DIR) when present.","When M2_HOME is set it is the shared Maven local repository — pass it through (-Dmaven.repo.local=\"$M2_HOME\") rather than letting the build default to ~/.m2.","Always build via the project wrapper (./mvnw or ./gradlew), never a globally installed tool."] |
| tools | ["bash"] |
| created_at | 2026-05-30T00:00:00.000Z |
| updated_at | 2026-07-29T00:00:00.000Z |
Spring Boot 3.x on Java 21. The guardrails above apply to every task; the references below carry the detail for whichever layer you are working in.
| file | when |
|---|---|
references/foundations.md | starting or restructuring an app — version baseline, project layout, DI, configuration |
references/web-layer.md | REST controllers and the service layer |
references/data-access.md | repositories, entities, queries, transactions (Spring Data JPA) |
references/errors-validation.md | error responses, exception handlers, request validation |
references/security.md | authentication, authorization, filter chains |
references/testing.md | writing or reviewing tests |
references/operations.md | observability, async/concurrency, domain events, caching |
references/api-and-release.md | OpenAPI documentation, production readiness checklist |
When a task spans layers, load only the references it actually touches — these are deliberately separable.