Welcome to the @crimson_dev/command wiki — the complete reference for building command palettes with the modern web stack.

• Installation — Package setup with pnpm, npm, or yarn
• Quick Start — Your first command palette in 2 minutes
• Migration from cmdk — Automated migration with codemods

• Architecture — Three-layer design, state machine, plugin system
• State Machine — Events, state transitions, subscriber pattern
• Search Engine — Fuzzy scoring, incremental filtering, pluggable interface
• Frecency — Frequency x recency ranking with Temporal decay
• Keyboard Shortcuts — Registry, parser, conflict detection
• Telemetry — Pluggable telemetry middleware for analytics

• Compound Components — Command, Input, List, Item, Group, Dialog
• Error Boundary — CommandErrorBoundary with fallback UI
• DevTools — useCommandDevtools() for browser inspection
• Virtualization — Automatic virtual scrolling for large datasets
• Accessibility — WAI-ARIA, forced-colors, screen readers

• WASM Search — Rust trigram index, Web Worker mode, graceful fallback
• Theming — OKLCH color space, CSS custom properties, dark mode
• CSS Customization — 19 CSS custom properties, @layer, logical properties
• GPU Animations — @starting-style, scroll-timeline, spring easing
• ES2026 Features — Iterator Helpers, Temporal, using/await using
• SSR and Next.js — Server-side rendering integration
• TypeScript Integration — Branded types, NoInfer, Disposable patterns

• File Picker — Build a VS Code-like file picker
• Emoji Picker — Emoji search with categories
• AI Chat Commands — Slash commands for AI assistants
• Nested Commands — Multi-level command navigation
• Spotlight Search — macOS Spotlight-style search

• Core API — createCommandMachine, createSearchEngine, FrecencyEngine
• React API — All 14 compound components, hooks, and error boundary
• WASM API — createWasmSearchEngine, createWorkerWasmSearchEngine
• Codemod API — CLI usage and transform details

• VS Code Extension — 10 snippets for fast development
• Create Command CLI — npm create @crimson_dev/command scaffolding
• Benchmarks — Performance baselines and regression detection

• Development Setup — Clone, install, test, benchmark
• Project Structure — Monorepo layout and conventions

Stack: TypeScript 6.0.1-rc | React 19.3.0-canary | ES2026 | Node.js 25.8.0 | Radix UI | Vitest | Playwright | Biome