From atum-stack-backend
Provides Java coding standards for Spring Boot services: naming, immutability, Optional, streams, exceptions, generics, and project layout.
npx claudepluginhub arnwaldn/atum-plugins-collection --plugin atum-stack-backendThis skill uses the workspace's default tool permissions.
Standards for readable, maintainable Java (17+) code in Spring Boot services.
Searches, retrieves, and installs Agent Skills from prompts.chat registry using MCP tools like search_skills and get_skill. Activates for finding skills, browsing catalogs, or extending Claude.
Searches prompts.chat for AI prompt templates by keyword or category, retrieves by ID with variable handling, and improves prompts via AI. Use for discovering or enhancing prompts.
Guides implementation of event-driven hooks in Claude Code plugins using prompt-based validation and bash commands for PreToolUse, Stop, and session events.
Standards for readable, maintainable Java (17+) code in Spring Boot services.
// ✅ Classes/Records: PascalCase
public class MarketService {}
public record Money(BigDecimal amount, Currency currency) {}
// ✅ Methods/fields: camelCase
private final MarketRepository marketRepository;
public Market findBySlug(String slug) {}
// ✅ Constants: UPPER_SNAKE_CASE
private static final int MAX_PAGE_SIZE = 100;
// ✅ Favor records and final fields
public record MarketDto(Long id, String name, MarketStatus status) {}
public class Market {
private final Long id;
private final String name;
// getters only, no setters
}
// ✅ Return Optional from find* methods
Optional<Market> market = marketRepository.findBySlug(slug);
// ✅ Map/flatMap instead of get()
return market
.map(MarketResponse::from)
.orElseThrow(() -> new EntityNotFoundException("Market not found"));
// ✅ Use streams for transformations, keep pipelines short
List<String> names = markets.stream()
.map(Market::name)
.filter(Objects::nonNull)
.toList();
// ❌ Avoid complex nested streams; prefer loops for clarity
MarketNotFoundException)catch (Exception ex) unless rethrowing/logging centrallythrow new MarketNotFoundException(slug);
public <T extends Identifiable> Map<Long, T> indexById(Collection<T> items) { ... }
src/main/java/com/example/app/
config/
controller/
service/
repository/
domain/
dto/
util/
src/main/resources/
application.yml
src/test/java/... (mirrors main)
private static final Logger log = LoggerFactory.getLogger(MarketService.class);
log.info("fetch_market slug={}", slug);
log.error("failed_fetch_market slug={}", slug, ex);
@Nullable only when unavoidable; otherwise use @NonNull@NotNull, @NotBlank) on inputsRemember: Keep code intentional, typed, and observable. Optimize for maintainability over micro-optimizations unless proven necessary.