solana
Expert guidelines for Solana program development with Rust, Anchor framework, and Web3.js integration
solidity
Best practices for secure, gas-efficient Solidity smart contract development and Web3 frontend integration. Use when writing or reviewing Solidity contracts, hardening against reentrancy and access-control bugs, optimizing gas usage, setting up Hardhat/Foundry testing and static analysis, or wiring a React frontend to wallets, providers, and on-chain transactions.
spring-boot
Expert guidance for Spring Boot application development with best practices for RESTful APIs, testing, security, and deployment
spring-framework
Expert guidance for Spring Framework and Spring Boot development with Java best practices, dependency injection, and RESTful API design
sql-best-practices
SQL development best practices for writing efficient, secure, and maintainable database queries
storybook
Best practices for building and documenting component libraries with Storybook
stripe
Stripe payment integration guidelines for TypeScript, React, Next.js with secure payment processing and subscription management
styled-components-best-practices
styled-components best practices for CSS-in-JS development in React applications
supabase-development
Supabase development guidelines for database, authentication, real-time subscriptions, and Edge Functions.
supabase
Expert in Supabase backend development with authentication and database patterns
svelte
Modern Svelte 5 and SvelteKit development covering runes-based reactivity, snippets, SSR/SSG, and state management, including migration notes from legacy Svelte 4 syntax. Use when writing or reviewing Svelte components, deciding between runes and legacy reactive statements, building SvelteKit routes and load functions, or migrating a Svelte 4 codebase to Svelte 5.
sveltekit
Expert guidance for SvelteKit development with TypeScript, Tailwind CSS, SSR/SSG, and performance optimization best practices
swift
Expert in Swift and SwiftUI development for iOS, macOS, and Apple platforms
swiftui-development
Guidelines for building SwiftUI applications with MVVM/Clean Architecture, Swift 6 strict concurrency, and modern state management. Use when building SwiftUI views, structuring view models, managing state with @State/@Observable, handling async data flow, or optimizing SwiftUI view performance.
swr
Guidelines for using SWR (stale-while-revalidate) React Hooks for efficient data fetching, caching, and revalidation
tailwindcss
Expert in TailwindCSS utility-first styling with responsive design patterns
tanstack-query
Best practices for TanStack Query v5 (React Query) server state management, including query key factories, the queryOptions helper, mutations, optimistic updates, infinite queries, and Suspense mode. Use when fetching or caching server data in React, writing custom query/mutation hooks, setting up a QueryClient, implementing optimistic updates, or migrating v4 patterns to v5.
tauri-development
Tauri development guidelines for building cross-platform desktop applications with TypeScript, Rust, and modern web technologies
technical-writing
Expert technical writing guidelines for creating clear, in-depth developer tutorials and documentation with practical, implementable knowledge
terraform
Expert in Terraform infrastructure-as-code with cloud deployment patterns
testing
General testing best practices and guidelines for writing comprehensive, maintainable tests across different testing frameworks and languages.
pr-review
Focused pull request review practices with severity-ranked, file-and-line-cited findings across four angles: security, performance, tests, and architecture. Use when asked to review a pull request, review a diff or set of changes, review \"this PR,\" or provide a code review before merge.
pyspark-etl
Best practices for building performant, testable PySpark ETL pipelines with Spark SQL and Apache Iceberg. Use when writing or reviewing PySpark jobs, designing joins and window functions, working with map/array higher-order functions, or building idempotent cumulative/snapshot table merges.
react-router-v7
React Router v7 framework mode conventions for route modules, data loaders, actions, and progressive enhancement. Use when building file-based routes with loaders/actions, handling form submissions with Form/useFetcher/useSubmit, adding route ErrorBoundary components, revalidating data after mutations, or migrating Remix-style route modules to React Router v7.
readme-best-practices
Structure, tone, and content conventions for writing effective project README files, covering hooks, quick starts, feature presentation, badges, and common documentation sections. Use when writing a new README, rewriting an existing one, or reviewing README quality for a repository, library, or CLI tool.
ros2-robotics
Best practices for ROS 2 robotics development, covering package structure, nodes, topics/services/actions, launch files, QoS, tf2 transforms, and testing. Use when creating ROS 2 packages, writing nodes in rclpy or rclcpp, defining custom messages/services/actions, writing launch files, configuring QoS profiles, working with tf2 transforms, or building and testing a colcon workspace.
rtl-internationalization
Right-to-left (RTL) layout and bidirectional text support for Hebrew, Arabic, Persian, and Urdu interfaces. Use when building UI that must support RTL languages, converting physical CSS/Tailwind properties to logical ones, handling mixed-direction (bidi) text, mirroring directional icons, or testing an app with dir=\"rtl\".
security-devsecops
DevSecOps, secure software development lifecycle (SSDLC), and application security (AppSec) practices covering secret handling, input validation, dependency hygiene, authentication/authorization, and CI/CD security tooling (SAST, SCA, DAST, secret scanning, IaC scanning). Use when writing code that handles credentials, user input, database queries, or authentication, when setting up a CI/CD pipeline, or when reviewing code or infrastructure for security issues.
snowflake-cortex-ai
Reference for Snowflake Cortex AI Functions (AI_COMPLETE, AI_CLASSIFY, AI_EXTRACT, AI_FILTER, etc.) and Cortex Search for building RAG applications entirely inside Snowflake. Use when writing SQL that calls an LLM, classifying or extracting structured data from text, building a natural-language WHERE filter, or setting up hybrid vector+keyword search for retrieval-augmented generation.
snowflake-data-engineering
Best practices for Snowflake SQL, semi-structured data, and data pipelines built with Dynamic Tables, Streams, Tasks, and Snowpipe. Use when writing Snowflake SQL, designing ingestion or transformation pipelines, tuning warehouse performance and cost, or working with Time Travel, cloning, RBAC, or Iceberg tables on Snowflake.
snowflake-snowpark-dbt
Best practices for Snowpark Python (DataFrames, UDFs, UDTFs, stored procedures) and dbt with the dbt-snowflake adapter. Use when writing server-side Snowpark pipelines, registering UDFs or stored procedures, choosing dbt materializations, configuring incremental models, or setting up sources and tests for a Snowflake-backed dbt project.
tanstack-router
Type-safe, file-based routing for React with TanStack Router. Use when defining routes with createFileRoute, validating search params with Zod, writing route loaders, setting up auth guards with beforeLoad, integrating TanStack Query into loaders, or configuring router context and preloading.
tanstack-start
Best practices for TanStack Start, the full-stack React framework built on TanStack Router and Vite/Nitro. Use when building server functions with createServerFn, setting up SSR and streaming with defer()/Await, writing API routes, configuring app.config.ts, or deploying a TanStack Start app to Node, Vercel, Netlify, Bun, or Cloudflare.
tensorflow-deep-learning
Best practices for building, training, evaluating, and deploying neural networks with TensorFlow and Keras. Use when writing tf.data input pipelines, defining or training a Keras model, configuring callbacks for checkpointing and early stopping, evaluating a trained model, or exporting a model for serving.
vue-pinia
Vue 3 state management with Pinia using the Composition API, covering setup stores, SSR/Nuxt integration, persistence, and testing. Use when creating or refactoring Pinia stores, deciding what state belongs in a store versus a component, wiring stores into router guards, persisting store state to storage, or testing store actions with @pinia/testing.
automl-hyperparameter-optimization
Best practices for AutoML and hyperparameter search with Optuna, Ray Tune, and PyCaret, covering search-space design, validation splits, and leakage prevention. Use when tuning model hyperparameters, setting up a pruned or distributed hyperparameter search, designing a nested validation scheme, or evaluating whether an AutoML leaderboard result is production-ready.
blender-python-addon
Best practices for writing Blender Python add-ons using the bpy API, covering operators, panels, properties, registration, and API-safe scripting. Use when creating a Blender add-on, defining bpy.types.Operator or Panel classes, registering PropertyGroup settings, writing register()/unregister() functions, working with bmesh, or debugging add-ons in Blender's Python console.
clean-code
Clean, maintainable, human-readable code principles combined with anti-over-engineering discipline: naming, single responsibility, DRY, and scoping changes to exactly what was requested. Use when writing new code, refactoring existing code, reviewing code for quality, or deciding how much abstraction a change actually needs.
embedded-stm32
Best practices for embedded C/C++ development on STM32 microcontrollers using the HAL, covering peripherals, DMA, interrupts, memory constraints, and hardware-focused testing. Use when writing STM32 HAL code, configuring peripherals generated by STM32CubeMX, working with interrupts or DMA, debugging with SWD/JTAG, managing memory-constrained firmware, or writing hardware-in-the-loop or host-build tests for embedded C.
fortran
Best practices for modern Fortran (2003/2008+) scientific and numerical computing, covering modules, explicit interfaces, kind parameters, memory safety, and testing. Use when writing or reviewing Fortran source (.f90/.f95/.f03/.f08), defining modules and derived types, choosing numeric kind parameters, working with allocatable arrays, setting up a Fortran build with CMake or fpm, or writing unit tests for numerical code.
gamemaker-gml
Best practices for GameMaker Language (GML) development, covering scripts, object events, rooms, data structures, and performance-minded game code. Use when writing GML scripts or object event code in GameMaker Studio, structuring create/step/draw events, managing rooms and instances, building state machines for gameplay, or optimizing GML for performance.
gitflow
Branching, merging, versioning, and release conventions for the Gitflow workflow, covering main/develop branches, feature/release/hotfix branches, semantic versioning, and pull request rules. Use when creating a branch, naming a branch, planning a release or hotfix, writing a commit message, or setting up branch protection for a repository that follows Gitflow.
google-adk
Best practices for building AI agents with Google's Agent Development Kit (ADK) in Python, covering agent design, tools, sessions, memory, artifacts, evaluation, and deployment. Use when building LLM agents or multi-agent systems with ADK, defining ADK tools, wiring up sessions/state/memory, working with ADK artifacts, writing agent evals, or deploying ADK agents to Vertex AI Agent Engine or Cloud Run.
harmony-arkts
Best practices for HarmonyOS application development with ArkTS and ArkUI, covering components, state management, resources, layout, lifecycle, and accessibility. Use when writing .ets component files, using ArkUI decorators like @Component/@State/@Prop/@Link, building layouts with Column/Row/Stack/List, managing HarmonyOS app resources with $r(), or handling component lifecycle and accessibility on HarmonyOS.
medusa-development
Best practices for building commerce applications with Medusa v2, the headless e-commerce framework. Use when defining Medusa data models, writing workflows and steps with the Workflow SDK, creating API routes or subscribers, building module services that extend MedusaService, throwing MedusaError, or customizing the Medusa admin dashboard.
network-troubleshooting
Systematic, safety-first diagnosis of developer network failures such as connection refused, DNS resolution errors, TLS certificate problems, proxy failures, and package registry timeouts. Use when a command fails with a network-shaped error (curl, npm, pip, git, docker), when a service is unreachable, or when the user asks to debug connectivity, DNS, TLS, or proxy issues.
hermes-wag-summarizer
Plug & play skill untuk membuat cronjob summary grup WhatsApp secara otomatis menggunakan Hermes WhatsApp Bridge.
web-design-studio
Create or redesign production-grade standalone websites in semantic HTML, CSS, and JavaScript with distinctive art direction and Codex-generated raster imagery. Use for landing pages, marketing sites, portfolios, product pages, editorial sites, and static dashboards that do not require React, Vue, Next.js, or another application framework. Do not use for framework-based applications, deployment-only work, or isolated components that belong in an existing framework project.
agentpay
Give your AI agent a funded balance and single-use virtual cards to spend online. Handles init, funding, balance checks, and disposable card creation via a lean 6-endpoint API. Triggers on "agent needs to buy something", "purchase API credits", "agent spending", "virtual card", "agent payments".
whop-dev
Build Next.js apps for the Whop platform. For empty repos, guides users from idea to deployed app through discovery and setup. For existing projects, provides best practices for authentication, payments, webhooks, and UI. Triggers on "build me a Whop app", @whop/sdk, verifyUserToken, checkAccess, checkout flows, webhook handling, Experience/Dashboard pages, Frosted UI. Delegates to companion skills (frontend-design, vercel-react-best-practices, supabase-postgres-best-practices, web-design-guidelines) for design, performance, and database.
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