Total 31,189 skills, Backend Development has 3057 skills
Showing 12 of 3057 skills
Spring Cache abstraction for Spring Boot 3.x. Covers @Cacheable, @CacheEvict, @CachePut, cache managers (Caffeine, Redis, EhCache), TTL configuration, cache keys, conditional caching, and cache synchronization. USE WHEN: user mentions "spring cache", "@Cacheable", "@CacheEvict", "cache manager", "Caffeine cache", "@EnableCaching", "cache abstraction" DO NOT USE FOR: Redis operations - use `spring-data-redis` instead, distributed caching architecture - combine with `redis` skill
structlog - structured logging library for Python with native JSON support, context binding, and processor pipeline. Integrates with FastAPI, Django, and standard logging module. USE WHEN: user mentions "structlog", "python structured logging", "context binding", asks about "JSON logging python", "fastapi logging", "django structured logging" DO NOT USE FOR: Standard Python logging - use `python-logging` instead, Node.js logging - use `pino` or `winston`, Java logging - use `slf4j` or `logback` instead
Java logging with SLF4J facade, Logback, and Log4j2 implementations. Covers configuration, log levels, structured logging, async logging, and production best practices for Spring Boot applications. USE WHEN: user mentions "java logging", "spring boot logging", "slf4j setup", asks about "how to log in java", "logback vs log4j2", "java logging best practices" DO NOT USE FOR: Node.js logging - use `nodejs-logging` instead, Python logging - use `python-logging`, Kotlin-specific logging - similar but has nuances
Public API theme management (X-API-KEY). List, get, generate, and apply themes. Types follow PublicThemeController (/api/v2/themes).
Public API project file management (X-API-KEY). Prepare upload/update, confirm, get file, download URL, delete. Types follow PublicApiProjectFileController (/api/v2/projects/{projectId}/...).
Build TypeScript clients for SpacetimeDB. Use when connecting to SpacetimeDB from web apps, Node.js, Deno, Bun, or other JavaScript runtimes.
XAF Memory Leak Prevention - event handler symmetry (OnActivated/OnDeactivated/Dispose), ObjectSpace scoped disposal with using statement, batch processing large datasets, IDisposable pattern for controllers with List<IDisposable> tracker, WeakEventSubscription, static reference anti-patterns, CollectionSource disposal, Session/HttpContext/Application anti-patterns (WebForms), ObjectSpacePool, controller lifecycle tracking, NavigationMonitor, warning signs, diagnostic tools (dotMemory, PerfView, XAF Tracing). Use when diagnosing memory leaks, auditing controller disposal, reviewing ObjectSpace lifetime, or reviewing Session usage in DevExpress XAF applications.
DevExpress XAF (eXpressApp Framework) master index. Use this skill first when working with any XAF topic to find the right sub-skill. Covers Blazor and WinForms, EF Core and XPO, versions v24.2 and v25.1. Sub-skills: xaf-xpo-models, xaf-ef-models, xaf-controllers, xaf-editors, xaf-custom-editors, xaf-nonpersistent, xaf-security, xaf-multi-tenant, xaf-web-api, xaf-validation, xaf-reports, xaf-dashboards, xaf-office, xaf-blazor-ui, xaf-winforms-ui, xaf-conditional-appearance, xaf-deployment, xaf-memory-leaks.
Optimize Entity Framework Core queries by fixing N+1 problems, choosing correct tracking modes, using compiled queries, and avoiding common performance traps. Use when EF Core queries are slow, generating excessive SQL, or causing high database load.
REST and GraphQL API architect for designing robust, scalable APIs. Use when designing new APIs or improving existing ones.
Use when scaffolding production-ready FastAPI services with uv, SQLAlchemy, Alembic, Postgres, Docker, and CI gates.
LLVM IR and pass pipeline skill. Use when working directly with LLVM Intermediate Representation (IR), running opt passes, generating IR with llc, inspecting or writing LLVM IR for custom passes, or understanding how the LLVM backend lowers IR to assembly. Activates on queries about LLVM IR, opt, llc, llvm-dis, LLVM passes, IR transformations, or building LLVM-based tools.