Total 56,258 skills, Backend Development has 4428 skills
Showing 12 of 4428 skills
Implements efficient API pagination using offset, cursor, and keyset strategies for large datasets. Use when building paginated endpoints, implementing infinite scroll, or optimizing database queries for collections.
Provides TypeScript patterns for DynamoDB-Toolbox v2 including schema/table/entity modeling, .build() command workflow, query/scan access patterns, batch and transaction operations, and single-table design with computed keys. Use when implementing type-safe DynamoDB access layers with DynamoDB-Toolbox v2 in TypeScript services or serverless applications.
Cron and scheduled task management. node-cron, cron expressions, Spring @Scheduled, APScheduler (Python), and distributed scheduling patterns. USE WHEN: user mentions "cron", "scheduled task", "cron job", "node-cron", "@Scheduled", "APScheduler", "periodic task", "crontab" DO NOT USE FOR: job queues with workers - use `job-queues`; one-off delayed tasks - use `job-queues`
Add support for a new CLI command. Use when implementing a handler or adding to SIMPLE_SAFE.
Rust programming expert for ownership, lifetimes, async/await, traits, and unsafe code
How to create and configure the Aptos client (Aptos, AptosConfig) in @aptos-labs/ts-sdk. Covers Network, fullnode/indexer/faucet URLs, singleton pattern, and Bun compatibility. Triggers on: 'Aptos client', 'AptosConfig', 'SDK client', 'client setup', 'new Aptos(', 'Network.TESTNET', 'Network.MAINNET'.
Implement reliable PostgreSQL-based job queues with PG Boss. Use when implementing background jobs, scheduled tasks, cron-like functionality, task rollover, or email notifications in Node.js/TypeScript projects.
AArch64 and ARM assembly skill for reading and writing ARM assembly code. Use when reading GCC/Clang output for AArch64 or ARM Thumb targets, writing inline asm in C/C++, understanding the ARM ABI (AAPCS64/AAPCS), or debugging register and stack state on ARM hardware or QEMU. Activates on queries about AArch64 assembly, ARM Thumb, NEON/SVE SIMD, ARM calling convention, inline asm for ARM, or reading ARM disassembly.
Expert guidelines for Ethereum smart contract development with Solidity, OpenZeppelin, and Hardhat
TypeORM for TypeScript/JavaScript. Covers entities, repositories, and relations. Use with SQL databases. USE WHEN: user mentions "typeorm", "@Entity", "Repository", "DataSource", "QueryBuilder", "typeorm migration", asks about "decorators for database", "active record pattern", "entity relationships", "typeorm relations" DO NOT USE FOR: Prisma projects - use `prisma` skill; Drizzle - use `drizzle` skill; SQLAlchemy (Python) - use `sqlalchemy` skill; raw SQL - use `database-query` MCP; NoSQL - use `mongodb` skill; Sequelize - not supported
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
Proxy2.0 数据库设计与操作规范：表设计命名、字段类型、索引规则、DO 对象、Mapper 接口、 SQL 安全、性能优化、MyBatis Plus 使用。Use when: (1) Creating database tables or SQL, (2) Writing DO classes, (3) Creating Mapper interfaces, (4) Reviewing database code, (5) Optimizing queries, (6) Working with MyBatis Plus.