Inspect a codebase, a stack the user describes, or a description of what they want to build; map what is there to agents-inc catalog skills — or intent to candidate built-in…
Zustand stores, client state patterns. Use when deciding between Zustand vs useState, managing global state, or avoiding Context misuse.
GraphQL server for Fastify with Mercurius — loaders, subscriptions, federation, JIT compilation
TanStack Table v8 patterns - useReactTable, column definitions, sorting, filtering, pagination, row selection, virtual scrolling, server-side data
Service Worker lifecycle, caching strategies, offline patterns, update handling, precaching, runtime caching
Image understanding and document analysis with Claude's multimodal capabilities -- image input formats, PDF processing, multi-image patterns, structured extraction, and t — from…
Application-level caching strategies, HTTP caching, cache invalidation, and stampede prevention
Push notification patterns - expo-notifications (Expo) and @react-native-firebase/messaging (bare RN), permission handling, token management, foreground/background/tap listeners,…
Frontend specification planning frameworks. Use when a spec touches UI components, forms, client state, or user-facing flows.
SST (Ion) infrastructure-as-code — TypeScript-first serverless on AWS with Pulumi, resource linking, and live Lambda dev
Tauri 2.x multi-window creation, event system, window state persistence, parent/child and modal windows
Local LLM inference with the Ollama JavaScript client -- chat, streaming, tool calling, vision, embeddings, structured output, model management, and OpenAI-compatible end — from…
GraphQL API server with Apollo Server — schema, resolvers, context, error handling, data sources, plugins
Socket.IO v4.x client patterns, connection lifecycle, reconnection, authentication, rooms, namespaces, acknowledgments, binary data, TypeScript integration
Investigation flow (Glob -> Grep -> Read), evidence-based research with file:line references, structured output format for AI consumption.
Biome v2 unified linter, formatter, and import organizer — single Rust-powered tool replacing ESLint + Prettier with 97% Prettier compatibility and 20x faster performance
React Three Fiber (R3F) 3D rendering — Canvas, meshes, materials, lights, cameras, animations, events, physics, post-processing, performance
Direct MySQL database access with mysql2 driver -- connection pools, prepared statements, transactions, streaming, typed queries, error handling
Serverless Redis-compatible key-value store via Upstash REST API -- edge-compatible, automatic JSON serialization, TTL-based caching
Svelte 5 Runes reactivity - $state, $derived, $effect, $props, $bindable, components, snippets, event handling, context API
Pino, Axiom, Sentry installation - one-time project setup for logging and error tracking with source maps upload
Vue Test Utils patterns - mount, shallowMount, wrapper API, trigger, setValue, flushPromises, testing composables, Pinia store mocking
NgRx SignalStore patterns for Angular state management. Use when managing client state with Angular Signals, composing store features, handling entities, or integrating RxJS…
Recharts composable chart components - LineChart, BarChart, AreaChart, PieChart, ComposedChart, responsive sizing, custom tooltips, animations
Hugging Face Inference SDK patterns for TypeScript/Node.js — InferenceClient setup, chat completion, text generation, streaming, embeddings, image generation, audio transcription,…
AI integration review patterns. Use when reviewing model API calls, prompt construction, LLM output handling, RAG pipelines, and tool-calling code.
AWS SDK v3 for TypeScript — modular clients, command pattern, S3, DynamoDB, SQS, Lambda, SNS, Secrets Manager
Vitest test runner - configuration, assertions, mocking (vi.fn, vi.mock, vi.spyOn), fake timers, snapshot testing, coverage, workspace projects
CockroachDB distributed SQL -- transaction retries, multi-region, online schema changes, follower reads, PostgreSQL compatibility gaps
Official Cohere TypeScript SDK patterns -- CohereClientV2, chat, embeddings, rerank, RAG with citations, tool use, streaming, and model selection — from agents-inc/skills
Maestro mobile E2E testing - YAML flows, selectors, flow control, environment variables, JavaScript expressions, device interactions, Maestro Studio, Maestro Cloud CI, tags, test…
Backend code review patterns. Use when reviewing API routes, database operations, auth middleware, and server utilities.
Tauri 2.x deny-by-default security model, capabilities, permissions, scopes, ACL
Zod schema validation patterns for TypeScript - schema definitions, type inference, refinements, transforms, discriminated unions
MobX observable state management patterns with mobx-react-lite. Use when implementing reactive client state with observables, computed values, actions, and the observer HOC.
Serverless GPU compute platform for AI model deployment — web endpoints, GPU functions, model serving, and TypeScript client patterns — from agents-inc/skills
LangChain.js patterns for building LLM applications — chat models, LCEL chains, prompt templates, structured output, agents, tools, RAG, streaming, and LangSmith tracing — from…
LiteLLM proxy server setup, TypeScript client patterns via OpenAI SDK, model routing, fallbacks, load balancing, spend tracking, virtual keys, and production deployment — from…
Backend specification planning frameworks. Use when a spec touches API endpoints, database schema, middleware, or auth.
Readable functional patterns — orchestrators, pure functions, named abstractions
Drag and drop with @dnd-kit - draggable, droppable, sortable, collision detection, sensors, accessibility
Netlify deployment platform — serverless functions, edge functions, redirects, forms, Blobs, build plugins
Node.js CLI development with Commander.js and @clack/prompts - command structure, interactive prompts, wizard state machines, config hierarchies, exit codes, cancellation handling
Nx monorepo build system — workspace configuration, project graph, task pipelines, caching, generators, plugins, and release management
SolidJS fine-grained reactivity patterns - signals, effects, memos, stores, createResource, control flow components, Suspense, SolidStart
Frameless windows, custom title bars, tray, menus, dock badges, vibrancy, kiosk mode, window state persistence
Astro content-first framework - islands architecture, content collections, file-based routing, SSR/SSG hybrid rendering, View Transitions, server islands, multi-framework…
Chroma vector database -- collection management, automatic embedding, metadata filtering, document storage, query patterns
Type-safe Electron IPC patterns with typed channels, electron-trpc, MessagePort, and utility process communication
UI component review patterns. Use when reviewing React components, hooks, props, state, styling, and accessibility.
Cloudflare Workers edge compute platform — Wrangler CLI, KV, D1, R2, Durable Objects, Queues, Workers AI
Supabase backend-as-a-service — Auth, Database, Realtime, Storage, Edge Functions, RLS policies, typed client
Docker containerization patterns for Node.js/TypeScript development and production
Multi-window management, WebContentsView, BaseWindow, window lifecycle, inter-window communication, state persistence
Cypress E2E testing patterns - test structure, data-cy selectors, cy.intercept() mocking, custom commands, fixtures, component testing, accessibility testing with cypress-axe, and…
Persistent storage, SQLite databases, and credential management in Electron apps
VueUse composable utility collection for Vue 3 - browser, sensor, network, state, animation, and component utilities
Angular 17-19 standalone components, signals, control flow, dependency injection patterns
Tauri 2.x mobile development - iOS via WKWebView, Android via Android WebView, mobile plugins, Swift/Kotlin native code, permissions, debugging
Testing and evaluation framework for LLM prompts and applications -- promptfooconfig.yaml, assertions, model-graded evals, red teaming, CI/CD integration, custom provider — from…