agents-inc

Hugging Face Inference SDK patterns for TypeScript/Node.js — InferenceClient setup, chat completion, text generation, streaming, embeddings, image generation, audio transcription, translation, summarization, and Inference Endpoints

1 skill

LiteLLM proxy server setup, TypeScript client patterns via OpenAI SDK, model routing, fallbacks, load balancing, spend tracking, virtual keys, and production deployment

1 skill

Serverless GPU compute platform for AI model deployment — web endpoints, GPU functions, model serving, and TypeScript client patterns

1 skill

Local LLM inference with the Ollama JavaScript client -- chat, streaming, tool calling, vision, embeddings, structured output, model management, and OpenAI-compatible endpoint

1 skill

Replicate SDK patterns for TypeScript/Node.js -- client setup, predictions, streaming, webhooks, file handling, model versioning, deployments, and training

1 skill

Together AI SDK patterns for TypeScript — client setup, chat completions, streaming, structured output, function calling, embeddings, image generation, fine-tuning, and OpenAI-compatible endpoints

1 skill

LLM observability with Langfuse — OpenTelemetry-based tracing, evaluations, prompt management, datasets, and production best practices

1 skill

Testing and evaluation framework for LLM prompts and applications -- promptfooconfig.yaml, assertions, model-graded evals, red teaming, CI/CD integration, custom providers, and comparative evaluation

1 skill

LangChain.js patterns for building LLM applications — chat models, LCEL chains, prompt templates, structured output, agents, tools, RAG, streaming, and LangSmith tracing

1 skill

LlamaIndex.TS data framework for RAG, indexing, retrieval, query engines, chat engines, and agentic workflows in TypeScript

1 skill

Vercel AI SDK patterns - providers, text generation, streaming, structured output, tool calling, chat UI hooks, embeddings, and RAG

1 skill

Provider-agnostic patterns for LLM function calling, tool loops, and agentic workflows

1 skill

Official Anthropic SDK patterns for TypeScript/Node.js — client setup, Messages API, streaming, tool use, vision, extended thinking, structured outputs, prompt caching, batch API, and production best practices

1 skill

Image understanding and document analysis with Claude's multimodal capabilities -- image input formats, PDF processing, multi-image patterns, structured extraction, and token cost estimation

1 skill

Official Cohere TypeScript SDK patterns -- CohereClientV2, chat, embeddings, rerank, RAG with citations, tool use, streaming, and model selection

1 skill

ElevenLabs voice AI SDK patterns for TypeScript/Node.js -- text-to-speech, streaming, voice cloning, speech-to-speech, pronunciation control, and conversational AI

1 skill

Official TypeScript SDK for Google Gemini — client setup, text generation, multimodal input, function calling, structured output, streaming, embeddings, context caching, and chat sessions

1 skill

Official Mistral AI TypeScript SDK patterns — client setup, chat completions, streaming, function calling, structured outputs, embeddings, vision, Codestral FIM, and production best practices

1 skill

Official OpenAI SDK patterns for TypeScript/Node.js — client setup, Chat Completions, Responses API, streaming, structured outputs, function calling, embeddings, vision, audio, and production best practices

1 skill

Speech-to-text transcription and translation via OpenAI Audio API -- models, response formats, timestamps, prompting, streaming, chunking, and diarization

1 skill

PostHog event tracking, user identification, group analytics for B2B, GDPR consent patterns. Use when implementing product analytics, tracking user behavior, setting up funnels, or configuring privacy-compliant tracking.

1 skill

PostHog analytics and feature flags setup

1 skill

Better Auth patterns, sessions, OAuth

1 skill

Clerk managed authentication - ClerkProvider, middleware, pre-built components, hooks, server-side auth, organizations, webhooks

1 skill

Auth.js (NextAuth v5) authentication patterns - configuration, providers, session strategies, middleware, database adapters, role-based access, Edge compatibility

1 skill

Appwrite backend-as-a-service — Auth, TablesDB, Storage, Functions, Realtime, permissions model, typed client

1 skill

Firebase backend-as-a-service — Firestore, Authentication, Cloud Functions v2, Storage, Hosting, Admin SDK, security rules, emulator suite

1 skill

Serverless PostgreSQL with branching, autoscaling, and edge-compatible driver

1 skill

Serverless MySQL platform with branching, deploy requests, and edge-compatible driver

1 skill

Supabase backend-as-a-service — Auth, Database, Realtime, Storage, Edge Functions, RLS policies, typed client

1 skill

Edge-hosted SQLite database with libSQL driver and embedded replicas

1 skill

Application-level caching strategies, HTTP caching, cache invalidation, and stampede prevention

1 skill

Payload CMS v3 — TypeScript-native headless CMS with code-first collections, hooks, access control, Local/REST/GraphQL APIs, admin panel, and database adapter pattern

1 skill

Structured content platform — GROQ queries, schema definitions, @sanity/client, Portable Text, image handling, real-time listeners, mutations, TypeGen

1 skill

Open-source headless CMS — content type schemas, REST API, Document Service API, custom controllers, lifecycle hooks, authentication, TypeScript

1 skill

Stripe payment processing — Checkout Sessions, Payment Intents, subscriptions, webhooks, Connect, customer management, error handling

1 skill

CockroachDB distributed SQL -- transaction retries, multi-region, online schema changes, follower reads, PostgreSQL compatibility gaps

1 skill

Drizzle ORM, queries, migrations

1 skill

Graph-relational database with EdgeQL query language, code-first schema, link-based relations, computed properties, and fully typed TypeScript query builder

1 skill

SQL query builder for PostgreSQL, MySQL, SQLite, and MSSQL -- fluent queries, schema builder, migrations, seeds, transactions, raw queries

1 skill

Native MongoDB driver (the mongodb npm package) - MongoClient lifecycle, typed collections, CRUD result shapes, cursors, aggregation pipelines, index design, transactions

1 skill

MongoDB ODM with schemas, validation, middleware, and TypeScript support

1 skill

Direct MySQL database access with mysql2 driver -- connection pools, prepared statements, transactions, streaming, typed queries, error handling

1 skill

Direct PostgreSQL access with node-postgres (pg) -- connection pools, parameterized queries, transactions, streaming, LISTEN/NOTIFY, error handling

1 skill

Prisma ORM, type-safe queries, migrations, relations

1 skill

Redis in-memory data store patterns with ioredis and node-redis -- caching, sessions, rate limiting, pub/sub, streams, queues, transactions, cluster

1 skill

Sequelize ORM, model definitions, associations, queries, transactions, migrations

1 skill

SurrealDB multi-model database - SurrealQL queries, record links, graph relations, live queries, schema definitions, authentication, TypeScript SDK

1 skill

Decorator-based ORM for TypeScript with Active Record and Data Mapper patterns

1 skill

Upstash serverless Redis -- REST-based client, auto-serialization, pipelines, rate limiting, QStash, edge compatibility, global replication

1 skill

Serverless Redis-compatible key-value store via Upstash REST API -- edge-compatible, automatic JSON serialization, TTL-based caching

1 skill

Serverless PostgreSQL on Vercel with edge-compatible SDK

1 skill

Resend + React Email templates

1 skill

Resend email setup, domain verification

1 skill

PostHog feature flags, rollouts, A/B testing. Use when implementing gradual rollouts, A/B tests, kill switches, remote configuration, beta features, or user targeting with PostHog.

1 skill

Bun-native HTTP framework — routing, TypeBox validation, Eden Treaty, plugins, lifecycle hooks

1 skill

Express.js routes, middleware, error handling, request/response patterns

1 skill

Fastify routes, JSON Schema validation, plugin system, TypeScript type providers

1 skill

Hono routes, OpenAPI, Zod validation

1 skill

NestJS backend framework - modules, controllers, services, DI, guards, pipes, interceptors, exception filters, middleware, DTOs with class-validator

1 skill

GraphQL API server with Apollo Server — schema, resolvers, context, error handling, data sources, plugins

1 skill

GraphQL server for Fastify with Mercurius — loaders, subscriptions, federation, JIT compilation

1 skill

GraphQL Yoga v5 server, Envelop plugins, subscriptions, error masking

1 skill

Webhook patterns — receiving, sending, signature verification, and retry logic

1 skill

Pino logging, Sentry error tracking, Axiom - structured logging with correlation IDs, error boundaries, performance monitoring, alerting

1 skill

Pino, Axiom, Sentry installation - one-time project setup for logging and error tracking with source maps upload

1 skill

Query optimization, caching, indexing, connection pooling, async patterns

1 skill

Job queues, background processing, and task scheduling with BullMQ v5

1 skill

Elasticsearch patterns -- client setup, index management, search DSL, aggregations, vector search, bulk operations, deep pagination

1 skill

Meilisearch search engine patterns -- client setup, indexing, search, filtering, facets, geo search, multi-tenancy, task management

1 skill

Xquik REST API patterns for X post search, user and timeline reads, cursor pagination, media downloads, monitors, signed webhooks, and approval-gated X actions

1 skill

OpenAPI 3.1 specification, schema design, code generation

1 skill

Chroma vector database -- collection management, automatic embedding, metadata filtering, document storage, query patterns

1 skill

Pinecone serverless vector database -- index management, vector operations, metadata filtering, namespaces, hybrid search, inference API

1 skill

Qdrant vector database -- collection management, point operations, payload filtering, named vectors, quantization, recommendations, snapshots

1 skill

Weaviate vector database patterns with weaviate-client v3 -- collection management, vectorizer modules, hybrid search, filtering, generative search (RAG), multi-tenancy, batch imports

1 skill

Node.js CLI development with Commander.js and @clack/prompts - command structure, interactive prompts, wizard state machines, config hierarchies, exit codes, cancellation handling

1 skill

Modern CLI development combining oclif's command framework with Ink's React-based terminal rendering

1 skill

Beautiful interactive CLI prompts with @clack/prompts and custom prompts with @clack/core

1 skill

Tauri 2.x Rust command patterns, state management, error handling, events, channels, testing

1 skill

Electron process architecture, IPC patterns, preload security, native APIs, packaging and distribution

1 skill

Tauri 2.x commands, IPC bridge, permission system, plugins, window management, system tray, packaging

1 skill

Type-safe Electron IPC patterns with typed channels, electron-trpc, MessagePort, and utility process communication

1 skill

Tauri 2.x mobile development - iOS via WKWebView, Android via Android WebView, mobile plugins, Swift/Kotlin native code, permissions, debugging

1 skill

Multi-window management, WebContentsView, BaseWindow, window lifecycle, inter-window communication, state persistence

1 skill

Tauri 2.x multi-window creation, event system, window state persistence, parent/child and modal windows

1 skill

Electron Forge build toolchain -- makers, publishers, code signing, fuses, hooks, CI/CD packaging

1 skill

Tauri 2.x bundling, code signing, auto-updater, platform installers, CI/CD

1 skill

Tauri 2.x official plugin ecosystem, plugin APIs, permissions, and custom plugin development

1 skill

Electron fuses, ASAR integrity, sandbox hardening, CSP, permission handling, navigation restrictions

1 skill

Tauri 2.x deny-by-default security model, capabilities, permissions, scopes, ACL

1 skill

Persistent storage, SQLite databases, and credential management in Electron apps

1 skill

E2E testing with Playwright, main process unit testing, IPC testing, dialog/menu mocking, CI headless setup

1 skill

Frameless windows, custom title bars, tray, menus, dock badges, vibrancy, kiosk mode, window state persistence

1 skill

Cross-platform auto-update patterns with electron-updater (electron-builder ecosystem)

1 skill

Docker containerization patterns for Node.js/TypeScript development and production

1 skill

GitHub Actions, pipelines, deployment

1 skill

Turborepo CI pipelines with remote caching and affected detection

1 skill

Environment configuration, Zod validation

1 skill

Kubernetes manifests, Helm charts, Kustomize overlays, and resource patterns

1 skill

TypeScript-native Infrastructure as Code with Pulumi

1 skill

SST (Ion) infrastructure-as-code — TypeScript-first serverless on AWS with Pulumi, resource linking, and live Lambda dev

1 skill

Infrastructure as Code with HashiCorp Terraform

1 skill

AWS SDK v3 for TypeScript — modular clients, command pattern, S3, DynamoDB, SQS, Lambda, SNS, Secrets Manager

1 skill

Cloudflare Workers edge compute platform — Wrangler CLI, KV, D1, R2, Durable Objects, Queues, Workers AI

1 skill

Netlify deployment platform — serverless functions, edge functions, redirects, forms, Blobs, build plugins

1 skill

Vercel deployment platform — project configuration, serverless/edge functions, Routing Middleware, cron jobs, environment variables, monorepo setup

1 skill

Proposes an agents-inc configuration — a SeedPayload plus a report — from a repository, a stack the user describes, or a description of what they want to build. Load when seeding a configuration for a project that has none, or re-running one after its dependencies changed.

1 skill

Composable component APIs — parts, state, polymorphism. Load when designing a reusable component's API, or aligning one that has grown boolean, renderX or style props.

1 skill

Readable TypeScript functions — orchestrators over pure helpers, named predicates and transforms, guard clauses, exhaustive unions. Load when writing or refactoring a function that mixes validation, transformation and assembly, or when deciding whether an expression should be extracted.

1 skill

Investigation flow (Glob -> Grep -> Read), evidence-based research with file:line references, structured output format for AI consumption. Use for pattern discovery, implementation research, and codebase investigation.

1 skill

Specification frameworks for features that call a model — approach tier, model pinning, output contracts, budgets, failure modes and eval design. Load when a spec touches model calls, prompts, retrieval, tool calling, agent loops or evals.

1 skill

Backend specification frameworks — endpoint contracts, error catalogs, auth per endpoint, schema with constraints and indexes, migration strategy, middleware order. Load when a spec adds or changes an API endpoint, a database table, or a request pipeline.

1 skill

CLI specification frameworks — flag contracts, prompt flows, config precedence, exit codes, output per context (TTY, piped, JSON), error and help text, signals and cross-platform behaviour. Use when a spec adds or changes a command surface, an interactive flow, a config key, an exit path or what a command prints.

1 skill

Frontend specification planning frameworks. Use when a spec touches UI components, forms, client state, or user-facing flows. Covers UI-state completeness (loading, error, empty, success), component boundaries, form validation contracts, state ownership, and measurable UI success criteria.

1 skill

AI integration review patterns. Use when reviewing model API calls, prompt construction, LLM output handling, RAG pipelines, and tool-calling code. Covers prompt-injection call-chain tracing, output validation, stop reasons, token budgets, retry and timeout handling, streaming, and key/PII exposure.

1 skill

Backend code review — injection and SSRF, boundary validation, object-level authorization, mass assignment and data exposure, error leakage, N+1 and unbounded queries. Use when a diff touches API routes or handlers, database access, auth middleware, or server code that reads files, starts processes or fetches URLs.

1 skill

CLI code review — exit codes, cancellation and signals, non-TTY behaviour, the stdout/stderr split, error text, config precedence, subprocess safety and test adequacy. Load when reviewing a command-line tool's commands, entry point, prompts, output or tests, whichever parser or prompt library it uses.

1 skill

Infrastructure code review — supply-chain pinning, secret exposure, workflow triggers and untrusted input, container hygiene, deployment safety. Load when reviewing a diff that touches CI/CD workflows, Dockerfiles, deployment configs or IaC.

1 skill

Code review process — reading order, findings, severity, scope and the approval decision. Load when reviewing a diff or PR, writing review comments, or deciding whether to approve or request changes.

1 skill

React component review — hook rules, effect cleanup, derived state, keys, memoization evidence and keyboard access. Load when reviewing a diff that adds or changes React components or hooks.

1 skill

React Native Gesture Handler - gesture types, GestureDetector, gesture composition, state machine, platform-specific gestures, swipeable rows, hover gestures

1 skill

React Native Reanimated 4 - shared values, animated styles, spring/timing/decay, layout animations, gesture integration, scroll-driven animations, interpolation, worklets, CSS animations

1 skill

React Native Skia GPU-accelerated 2D graphics - Canvas, declarative drawing, shaders, image filters, Paragraph text, Atlas batch rendering, Reanimated animations

1 skill

Background fetch, processing tasks, background location, headless JS, battery optimization - Expo and bare React Native

1 skill

VisionCamera v4+ - photo/video capture, QR/barcode scanning, real-time frame processors, zoom/focus/exposure, HDR, location metadata, format selection

1 skill

Deep linking patterns - Universal Links (iOS), App Links (Android), URI schemes, expo-linking API, React Navigation linking config, Expo Router automatic linking, AASA/assetlinks.json setup, deferred deep links, testing

1 skill

EAS Build, Update, Submit deployment patterns

1 skill

Expo managed workflow

1 skill

React Native mobile development patterns - New Architecture (Fabric, TurboModules, JSI), component architecture, React Navigation 7+, FlashList v2 optimization, gestures with Reanimated 4, platform-specific code, React 19 features

1 skill

BLE scanning/connecting/GATT operations with react-native-ble-plx, NFC tag reading/writing with react-native-nfc-manager, permissions, background mode, battery-efficient patterns

1 skill

File-based routing and navigation for Expo/React Native

1 skill

React Navigation 7+ patterns - static and dynamic APIs, type-safe navigation, stack/tab/drawer navigators, deep linking, authentication flows, screen preloading, header customization

1 skill

Push notification patterns - expo-notifications (Expo) and @react-native-firebase/messaging (bare RN), permission handling, token management, foreground/background/tap listeners, local scheduling, Android channels, notification categories and actions, badge management, rich notifications

1 skill

React Native performance profiling, optimization, and monitoring - JS/UI thread analysis, re-render prevention, list optimization, image performance, bundle size, startup time, memory leaks, React Compiler, New Architecture benefits

1 skill

Secure storage, certificate pinning, biometric auth, jailbreak detection, code obfuscation, network security, screenshot prevention for React Native

1 skill

MMKV high-performance key-value storage for React Native - synchronous JSI-based reads/writes, encryption, typed hooks, multiple instances, listeners, persistence middleware adapters

1 skill

PowerSync offline-first sync engine on SQLite for React Native - schema definition, watched queries, CRUD operations, backend connectors, sync rules, conflict resolution, attachments

1 skill

WatermelonDB reactive local database for React Native - schema, models, decorators, reactive queries, relations, writers/readers, batch operations, migrations, sync

1 skill

NativeWind v4+ - Tailwind CSS utility classes for React Native, className prop, CSS variables, dark mode, platform prefixes, animations, theming, third-party component integration

1 skill

Unistyles 3.0 styling - C++ powered StyleSheet superset with zero re-renders, theming, breakpoints, variants, dynamic functions, runtime values

1 skill

Detox E2E gray-box testing for React Native - matchers, actions, expectations, waitFor, device API, synchronization, mocking, artifacts, CI integration

1 skill

Maestro mobile E2E testing - YAML flows, selectors, flow control, environment variables, JavaScript expressions, device interactions, Maestro Studio, Maestro Cloud CI, tags, test suites

1 skill

React Native Paper v5+ - Material Design 3 theming, PaperProvider, key components, dynamic color, accessibility, tree-shaking, custom fonts, navigation integration

1 skill

Tamagui universal UI - styled(), tokens, themes, optimizing compiler, responsive media queries, animations, Sheet/Dialog components

1 skill

Nx monorepo build system — workspace configuration, project graph, task pipelines, caching, generators, plugins, and release management

1 skill

pnpm workspace protocol, filtering, catalogs, shared dependencies, publishing, and CI/CD for monorepo management

1 skill

Turborepo, workspaces, package architecture, @repo/* naming, exports, tree-shaking

1 skill

Secrets management, XSS prevention, CSRF protection, dependency scanning, DOMPurify sanitization, CSP headers, CODEOWNERS, HttpOnly cookies

1 skill

Biome v2 unified linter, formatter, and import organizer — single Rust-powered tool replacing ESLint + Prettier with 97% Prettier compatibility and 20x faster performance

1 skill

Versioning and changelog management with @changesets/cli — adding changesets, version bumping, changelog generation, monorepo publishing, pre-release modes, and CI automation

1 skill

ESLint 9/10 flat config with defineConfig(), Prettier v3.0+ shared config, eslint-config-prettier integration, typescript-eslint v8+ projectService

1 skill

Husky v9 setup, lint-staged v16 patterns, commitlint with conventional commits, CI/production handling, monorepo setup, migration from v8

1 skill

TypeScript strict mode configs, TS 5.x+ options (verbatimModuleSyntax, module preserve, moduleDetection force, configDir), path alias sync, specialized configs

1 skill

React Three Fiber (R3F) 3D rendering — Canvas, meshes, materials, lights, cameras, animations, events, physics, post-processing, performance

1 skill

WCAG, ARIA, keyboard navigation

1 skill

CSS animation patterns - transitions, keyframes, scroll-driven timelines, @property, compositor-friendly properties, prefers-reduced-motion

1 skill

Motion (formerly Framer Motion) patterns - motion components, variants, AnimatePresence, gestures, layout animations, scroll-linked motion, reduced-motion handling

1 skill

View Transitions API patterns - same-document transitions, cross-document navigation, shared element animations, pseudo-element styling, transition types, reduced-motion handling

1 skill

Apollo Client GraphQL patterns — normalized cache and type policies, queries, mutations with optimistic updates, pagination, fragments, subscriptions, and Suspense hooks

1 skill

URQL GraphQL client patterns — the exchange pipeline, document and normalized caching, queries, mutations, subscriptions, and authentication

1 skill

SWR data fetching patterns — keys and fetchers, isLoading vs isValidating, revalidation strategy, useSWRMutation, useSWRInfinite, conditional fetching

1 skill

tRPC type-safe API patterns — routers and procedures, input validation, context and middleware, TRPCError, and the typed client bridge

1 skill

D3.js data visualization — selections, data joins, scales, axes, shapes, transitions, force layouts, geo projections, framework integration

1 skill

Recharts composable chart components - LineChart, BarChart, AreaChart, PieChart, ComposedChart, responsive sizing, custom tooltips, animations

1 skill

Drag and drop with @dnd-kit - draggable, droppable, sortable, collision detection, sensors, accessibility

1 skill

Extensible text editor framework by Meta. Use when building a rich text editor on Lexical — editor setup, custom nodes, commands, transforms, and serialization.

1 skill

Headless rich text editor framework built on ProseMirror. Use when building an editor with TipTap — setup, extensions, custom nodes and marks, menus, node views, serialization.

1 skill

Error boundary patterns, fallback UI, reset/retry, react-error-boundary library, React 19 createRoot error hooks

1 skill

TypeScript Result/Either types for type-safe error handling, railway-oriented programming patterns, error as values

1 skill

File upload patterns - drag-drop dropzones, chunked and resumable uploads, presigned URL flows, file validation (MIME type, magic bytes), progress tracking, accessibility (ARIA)

1 skill

Client-side image handling - preview generation, Canvas API resizing, compression, EXIF orientation, format conversion, memory management with object URL cleanup

1 skill

React Hook Form patterns - useForm, Controller, useFieldArray, validation resolver, performance optimization

1 skill

TanStack Form patterns - useForm, form.Field, validators, arrays, linked fields, createFormHook, type safety

1 skill

VeeValidate v4 patterns - useForm, useField, defineField, useFieldArray, schema validation with Composition API

1 skill

Zod schema validation patterns for TypeScript - schema definitions, type inference, refinements, transforms, discriminated unions

1 skill

Angular 17–19 standalone components, signals, built-in control flow, inject() DI, the resource API. Load when writing or migrating Angular components.

1 skill

Component architecture, hooks and React 19 patterns. Load when building or refactoring React components, custom hooks, forms, or async UI.

1 skill

SolidJS fine-grained reactivity — signals, effects, memos, stores, resources, control-flow components. Load when writing Solid components or reactive state.

1 skill

Svelte 5 runes — $state, $derived, $effect, $props, $bindable, snippets, callback props, context. Load when writing Svelte 5 components or reactive modules.

1 skill

Vue 3 Composition API — reactivity primitives, composables, lifecycle, the 3.4+ and 3.5+ macros. Load when writing Vue 3 components or composables.

1 skill

Type-safe i18n for the App Router — locale routing, message rendering, formatting and static generation. Load when a project imports next-intl.

1 skill

ICU message format internationalization for React — FormattedMessage, useIntl, defineMessages, and the FormatJS extraction workflow. Load when a project imports react-intl.

1 skill

Type-safe i18n for Vue 3 Composition API — useI18n, pipe-syntax plurals, i18n-t/d/n components, lazy-loaded locales. Load when a project imports vue-i18n.

1 skill

Leaflet interactive maps. Use when building a 2D map with tile layers, markers, popups, GeoJSON, layer control, custom controls or marker clustering.

1 skill

Mapbox GL JS interactive vector maps. Use when building a map with sources and layers, expressions, clustering, 3D terrain, geocoding or directions.

1 skill

Astro content-first framework - islands architecture, content collections, file-based routing, SSR/SSG hybrid rendering, View Transitions, server islands, multi-framework component support

1 skill

Docusaurus 3.x documentation framework — site configuration, docs/blog plugins, sidebars, versioning, MDX, swizzling, and deployment

1 skill

Next.js App Router patterns (15-16) - file-based routing, Server/Client Components, streaming, Suspense, metadata API, parallel routes, Server Actions, mutations, revalidation, Cache Components

1 skill

Nuxt patterns - file-based routing, data fetching (useFetch/useAsyncData), useState, server routes, middleware, auto-imports, layouts, SEO

1 skill

Qwik resumable framework - zero hydration, $ lazy boundaries, signals, Qwik City file-based routing, routeLoader$, routeAction$, server$ RPC, serialization rules

1 skill

File-based routing, loaders, actions, defer streaming, useFetcher, error boundaries, progressive enhancement

1 skill

SvelteKit full-stack framework - file-based routing, load functions, form actions, server hooks, SSR/SSG, API routes, streaming, progressive enhancement

1 skill

VitePress 1.x — Vue-powered static site generator for documentation sites, built on Vite

1 skill

MSW handlers, browser/server workers, test data. Use when setting up API mocking for development or testing, creating mock handlers with variants, or sharing mocks between browser and Node environments.

1 skill

Bundle optimization, render performance, Core Web Vitals

1 skill

Local-first architecture with sync queues

1 skill

Service Worker lifecycle, caching strategies, offline patterns, update handling, precaching, runtime caching

1 skill

Socket.IO v4.x client patterns, connection lifecycle, reconnection, authentication, rooms, namespaces, acknowledgments, binary data, TypeScript integration

1 skill

Server-Sent Events for unidirectional server-to-client streaming, EventSource API, fetch streaming, reconnection patterns, message parsing

1 skill

Native WebSocket API patterns, connection lifecycle, reconnection strategies, heartbeat, message typing, binary data, custom hooks

1 skill

Client-side routing with data APIs — loaders, actions, error boundaries, search params, nested layouts, and code splitting

1 skill

Type-safe client-side routing for React with file-based routes, search params validation, loaders, and code splitting

1 skill

React Query server state — query keys and query options, caching policy, error handling, and typed clients generated from an API schema

1 skill

Atomic state management with auto-dependency tracking

1 skill

MobX observable state management patterns with mobx-react-lite. Use when implementing reactive client state with observables, computed values, actions, and the observer HOC.

1 skill

NgRx SignalStore patterns for Angular state management. Use when managing client state with Angular Signals, composing store features, handling entities, or integrating RxJS effects.

1 skill

Pinia stores, Vue 3 state patterns. Use when managing client state in Vue applications, choosing between Options/Setup stores, composing stores, or implementing persistence.

1 skill

Redux Toolkit patterns for complex client state. Use when managing enterprise-scale state, needing DevTools, entity normalization, or RTK Query for data fetching.

1 skill

Zustand stores, client state patterns. Use when deciding between Zustand vs useState, managing global state, or avoiding Context misuse.

1 skill

Class Variance Authority - type-safe component variant styling with cva(), compound variants, and VariantProps

1 skill

Design token architecture - primitive/semantic/component tiers, naming grammar, CSS custom property delivery, and DTCG build pipelines

1 skill

SCSS Modules - locally scoped component stylesheets, cascade layers, the Sass module system, mixins, and build-time versus runtime values

1 skill

Tailwind CSS v4 - utility-first CSS framework with CSS-first configuration

1 skill

Runtime theming - applying a theme system to a live app without flash

1 skill

Cypress E2E testing patterns - test structure, data-cy selectors, cy.intercept() mocking, custom commands, fixtures, component testing, accessibility testing with cypress-axe, and CI/CD integration

1 skill

Playwright E2E testing patterns - test structure, Page Object Model, locator strategies, assertions, network mocking, visual regression, parallel execution, fixtures, and configuration

1 skill

React Testing Library — query hierarchy, userEvent, async utilities, renderHook, custom render with providers. Load when writing or reviewing tests that render React components or hooks.

1 skill

Visual regression testing — screenshot baselines, determinism, diff review, baseline custody and CI wiring. Load when adding, reviewing or debugging tests that compare a rendered subject against an approved image.

1 skill

Vitest test runner - configuration, assertions, mocking (vi.fn, vi.mock, vi.spyOn), fake timers, snapshot testing, coverage, workspace projects

1 skill

Vue Test Utils — mount vs shallowMount, the wrapper API, awaiting DOM updates, flushPromises, testing composables, and the global mounting options. Load when writing or reviewing tests that mount Vue components.

1 skill

Packaging React components as a consumable library — style delivery contracts, sideEffects, cascade layers, "use client" preservation, peer dependency ranges, server-safe vs client entries

1 skill

Storybook patterns - CSF 3.0, args, controls, autodocs, play functions, interaction testing, visual testing, addons configuration

1 skill

Vite config, path aliases, vendor chunk splitting, environment-specific builds, Rolldown codeSplitting, Sass modern API, build targets, module preload

1 skill

Ant Design enterprise UI library for React

1 skill

Unstyled accessible React component primitives

1 skill

Accessible React component library with style props and theming

1 skill

Unstyled accessible UI components by Tailwind Labs

1 skill

Mantine v7 component library — theming, styling, hooks, forms, notifications

1 skill

Material UI component library patterns for React

1 skill

Unstyled accessible UI primitives

1 skill

shadcn/ui component library patterns, CLI usage, theming, customization

1 skill

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