# luckys > Open-source publisher. Listings imported from github.com/luckys — credited to the original author with their license. - **Listings:** 9 - **Total installs:** 0 - **Profile:** https://agentstack.voostack.com/s/luckys - **Website:** https://github.com/luckys ## Published listings - [Tdd Best Practices](https://agentstack.voostack.com/l/skill-luckys-agent-skills-tdd-best-practices) — Skill · Free · security-reviewed — `agentstack add skill-luckys-agent-skills-tdd-best-practices` Test-Driven Development guidance. Use when writing tests before implementation, applying Red-Green-Refactor, testing Value Object contracts, typed domain failures/Results, DDD Aggregates, Domain Events/subscribers, transaction or cache boundaries, data migrations/backfills, Criteria/query adapters, repository contracts or persistence adapters, choosing between test doubles, deciding test granular… - [Fp Best Practices](https://agentstack.voostack.com/l/skill-luckys-agent-skills-fp-best-practices) — Skill · Free · security-reviewed — `agentstack add skill-luckys-agent-skills-fp-best-practices` Functional Programming guidance for writing and reviewing clean, composable code. Use when naming functions or types, designing pure functions, applying function composition or pipe, choosing between algebraic data types (Maybe, Option, Either, Result), controlling side effects or IO boundaries, using higher-order functions (map, filter, reduce, flatMap), applying currying or partial application,… - [Oop Best Practices](https://agentstack.voostack.com/l/skill-luckys-agent-skills-oop-best-practices) — Skill · Free · security-reviewed — `agentstack add skill-luckys-agent-skills-oop-best-practices` Day-to-day OOP guidance for writing and reviewing clean, maintainable code. Use when naming classes and methods, defining object boundaries, introducing or reviewing Value Objects (equality, hashing, immutability, parsing, normalization, optionality), designing first-class collections, applying Tell Don't Ask or Law of Demeter, enforcing Object Calisthenics, reducing cohesion problems, choosing b… - [Rest Api Best Practices](https://agentstack.voostack.com/l/skill-luckys-agent-skills-rest-api-best-practices) — Skill · Free · security-reviewed — `agentstack add skill-luckys-agent-skills-rest-api-best-practices` REST API design guidance. Use when designing or reviewing REST endpoints, choosing HTTP methods and status codes, defining URL structure and naming conventions, formatting error responses, implementing pagination or filtering, versioning an API, securing endpoints with authentication or rate limiting, or reviewing whether an API exposes domain capabilities rather than raw CRUD operations. - [Refactoring Best Practices](https://agentstack.voostack.com/l/skill-luckys-agent-skills-refactoring-best-practices) — Skill · Free · security-reviewed — `agentstack add skill-luckys-agent-skills-refactoring-best-practices` Safe refactoring guidance for legacy and existing codebases. Use when improving design without changing behavior, creating seams around hard dependencies, migrating null/string/generic exceptions to typed failure contracts, extracting a repository from direct SQL/ORM access, introducing Domain Events into legacy workflows, adding characterization tests, splitting large classes or methods, introdu… - [Ddd Best Practices](https://agentstack.voostack.com/l/skill-luckys-agent-skills-ddd-best-practices) — Skill · Free · security-reviewed — `agentstack add skill-luckys-agent-skills-ddd-best-practices` Domain-Driven Design guidance for modeling complex domains. Use when designing Bounded Contexts or Subdomains, discovering Aggregate boundaries from invariants and transactions, defining Aggregate Roots, designing Domain Events, typed domain failures, or repository contracts, choosing exception vs Result/Either/Option semantics, choosing Repository vs DAO/query service/gateway, splitting oversize… - [Data Migration Best Practices](https://agentstack.voostack.com/l/skill-luckys-agent-skills-data-migration-best-practices) — Skill · Free · security-reviewed — `agentstack add skill-luckys-agent-skills-data-migration-best-practices` Operational data migration guidance. Use when moving or transforming persisted data between schemas, databases, services, or storage technologies; running large backfills; applying expand-and-contract schema changes; combining snapshots with live CDC/events; designing resumable batches and checkpoints; reconciling source and target; or planning cutover, rollback, and repair. - [Infrastructure Design](https://agentstack.voostack.com/l/skill-luckys-agent-skills-infrastructure-design) — Skill · Free · security-reviewed — `agentstack add skill-luckys-agent-skills-infrastructure-design` Infrastructure pattern guidance for DDD and hexagonal architecture applications. Use when implementing an event bus or broker relay, applying Outbox, Inbox, retry, dead-letter, ordering, or Change Data Capture patterns, managing database transactions or optimistic Aggregate concurrency, designing cache-aside strategies with Redis, building database views or materialized views, or choosing between… - [Design Patterns Best Practices](https://agentstack.voostack.com/l/skill-luckys-agent-skills-design-patterns-best-practices) — Skill · Free · security-reviewed — `agentstack add skill-luckys-agent-skills-design-patterns-best-practices` Pattern selection and application guidance for OO systems. Use when choosing a GoF pattern (Strategy, State, Observer, Command, Factory, Builder, Decorator, Proxy, Adapter, Composite, etc.), applying PoEAA enterprise patterns (Transaction Script, Service Layer, Data Mapper, Unit of Work, Repository, Gateway, DTO, Money, Special Case), implementing the Criteria pattern, applying Clean Architecture… --- Seller on AgentStack — the marketplace for AI agent skills and MCP servers. Every listing is security-reviewed. Install any with `agentstack add `.