Database
Database management and queries
backend
by Tyler-R-Kendrick
Use when making backend architecture decisions — choosing API styles, database types, caching strategies, authentication mechanisms, and server-side design patterns for scalable, maintainable systems. USE FOR: backend architecture decisions, choosing API styles, choosing database types, server-side design patterns, backend system design DO NOT USE FOR: specific pattern details (use sub-skills: data-modeling, api-design, caching, authentication), frontend architecture (use dev/frontend), infrastructure (use iac)
better-auth
by ovachiever
Build authentication systems for TypeScript/Cloudflare Workers with social auth, 2FA, passkeys, organizations, and RBAC. Self-hosted alternative to Clerk/Auth.js. IMPORTANT: Requires Drizzle ORM or Kysely for D1 - no direct D1 adapter. v1.4.0 (Nov 2025) adds stateless sessions, ESM-only (breaking), JWT key rotation, SCIM provisioning. v1.3 adds SSO/SAML, multi-team support. Use when: self-hosting auth on Cloudflare D1, migrating from Clerk, implementing multi-tenant SaaS, or troubleshooting D1 adapter errors, session serialization, OAuth flows, TanStack Start cookie issues, nanostore session invalidation.
tree-sitter
by ssiumha
AST parsing, S-expression queries, tag extraction via tree-sitter CLI. Use when parsing code into AST, extracting tags, visualizing syntax trees, or performing structural analysis beyond ast-grep.
laravel-migrations-and-factories
by noartem
Safe database change patterns; when to modify vs add migrations; always pair models with migrations and factories; seeding guidance
paper-visualizer
by WilsonWukz
Transform research papers into professional visual schemas. Analyzes paper logic, selects optimal layout patterns, and generates detailed prompts for AI image generation.
dotnet
by Tyler-R-Kendrick
Use when working with C#, F#, .NET libraries, ASP.NET Core, Blazor, Entity Framework Core, and the broader .NET ecosystem. USE FOR: .NET language features, choosing libraries and frameworks, project structure, package selection, architecture decisions DO NOT USE FOR: specific library configuration details (use the sub-skills: web, data, testing, eventing, cloud, etc.)
claude-agent-sdk
by ssiumha
Builds Claude Agent SDK agents in Python. Use when creating custom tools, hooks, sub-agents, or MCP integrations with the Agent SDK. Python 에이전트 구축 시 사용.
laravel-debugging-prompts
by noartem
Create effective debugging prompts—include error messages, stack traces, expected vs actual behavior, logs, and attempted solutions
web-dev
by xpnobug
Web 开发最佳实践和现代前端技术栈指导
oxmysql
by germanfndez
OxMySQL for FiveM — SQL integrations with MySQL/MariaDB. Use when writing or editing server-side database code: queries, inserts, updates, transactions, or any resource that uses oxmysql (query, insert, prepare, update, single, scalar, rawExecute, transaction). Docs: https://coxdocs.dev/oxmysql
effect-v4
by teeverc
"Effect v4 (beta) development and v3 → v4 migration guidance. Use when building new Effect v4 code or upgrading from v3, including API renames, behavior changes, before/after examples, and v4-specific patterns for services, layers, generators, yieldable, error handling, and schema codecs."
python-data-state
by ahgraber
Use when designing data ownership, validation boundaries, consistency models, or configuration strategy in Python. Also use when encountering unclear ownership across modules, shared mutable state leaking between layers, validation gaps at ingress, cross-module transactional coupling, or config drift between environments.
elfeed
by markus1189
Search the user's Emacs elfeed RSS feed database containing curated feeds from Reddit, blogs, YouTube, GitHub releases, and newsletters. Use when the user asks about articles they've read, mentions RSS feeds or 'something I read', wants to research topics from their curated sources (programming, AI, security, NixOS, Emacs, etc.), or needs to triage unread items.
python-types-contracts
by ahgraber
Use when defining or evolving public interfaces, schema boundaries, or pydantic usage in Python. Also use when annotations are missing on public APIs, pydantic models appear everywhere instead of at trust boundaries, contract changes lack migration guidance, or Any/object types are overused across module boundaries.
🧠 RVDiA Developer Guide & LLM Coding Skill
by Schryzon
Glub glub, wiggle wiggle! 🐟😺 Keep the machinery running smoothly!
python-testing
by ahgraber
Use when writing or reviewing tests for Python behavior, contracts, async lifecycles, or reliability paths. Also use when tests are flaky, coupled to implementation details, missing regression coverage, slow to run, or when unclear what tests a change needs.
text-to-sql
by kdoronin
Setup and use text-to-SQL capabilities for SQL databases (SQLite, PostgreSQL, MySQL, MariaDB, etc.). Use when: (1) User wants to query databases using natural language, (2) User asks to setup text-to-sql project, (3) User mentions extracting data from database, (4) User has .sqlite/.db file or database credentials and wants to work with data. This skill sets up project structure, extracts database schema, and enables natural language to SQL conversion.
nextjs-migration-toolkit
by Blazity
"Required dependency for all next-migration-skills. Provides AST analysis and transform tools powered by ts-morph for analyzing routes, components, dependencies, and generating App Router code."
jpa-patterns
by Ashfaqbs
JPA/Hibernate patterns for entity design, relationships, query optimization, transactions, auditing, indexing, pagination, and pooling in Spring Boot.
migration-planning
by Blazity
Use when the user asks to plan a Next.js migration, create a migration roadmap, decide migration order, schedule migration phases, or asks "what order should I migrate routes?" Analyzes routes via AST and generates a phased migration plan (.migration/plan.md). Requires migration-assessment first.
route-conversion
by Blazity
Use when converting a specific page from pages/ to app/ directory, or migrating a route end-to-end (file structure, data fetching, metadata, imports). The main workhorse skill for per-route migration.
memory-schema
by basicmachines-co
"Schema lifecycle management for Basic Memory: discover unschemaed notes, infer schemas, create and edit schema definitions, validate notes, and detect drift. Use when working with structured note types (Task, Person, Meeting, etc.) to maintain consistency across the knowledge graph."
component-migration
by Blazity
Use when adding 'use client' directives, splitting mixed components into server + client parts, or fixing RSC boundary errors like "useState only works in a Client Component." Also for migrating interactive UI (forms, modals, event handlers) to App Router.
memory-metadata-search
by basicmachines-co
"Structured metadata search for Basic Memory: query notes by custom frontmatter fields using equality, range, array, and nested filters. Use when finding notes by status, priority, confidence, or any custom YAML field rather than free-text content."