Use when composing or customizing shadcn/ui components, Radix primitives, dialogs, forms or data tables. Not for PrimeReact or general Tailwind configuration.
Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.
What the file says
# shadcn/ui Community Best Practices
Comprehensive best practices guide for shadcn/ui applications, maintained by the shadcn/ui community. Contains 42 rules across 8 categories, prioritized by impact to guide automated refactoring and code generation.
## When to Apply
Reference these guidelines when:
- Writing new shadcn/ui components or composing primitives
- Implementing forms with React Hook Form and Zod validation
- Building data tables or handling large dataset displays
- Customizing themes or adding dark mode support
- Reviewing code for accessibility compliance
## Rule Categories by Priority
| Priority | Category | Impact | Prefix |
|----------|----------|--------|--------|
| 1 | Component Architecture | CRITICAL | `arch-` |
| 2 | Accessibility Preservation | CRITICAL | `ally-` |
| 3 | Styling & Theming | HIGH | `style-` |
| 4 | Form Patterns | HIGH | `form-` |
| 5 | Data Display | MEDIUM-HIGH | `data-` |
| 6 | Component Composition | MEDIUM | `comp-` |
| 7 | Performance Optimization | MEDIUM | `perf-` |
| 8 | State Management | LOW-MEDIUM | `state-` |
## Quick Reference
### 1. Component Architecture (CRITICAL)
…
The line at the top of this page pins the label git:20261026.fc845e3, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.
A 17 of 17 checks passed. Fixed automatic checks with no AI involved, so the same checks give the same answer every run.
pass: Frontmatter block present
pass: Frontmatter declares a name
pass: Frontmatter declares a description
pass: Size between 200 bytes and 200 KB (7696 bytes)
pass: No zero-width or bidi control characters
pass: No instruction hidden inside an HTML comment
pass: No link to an exfiltration or paste host
pass: No credential-shaped string
pass: No instruction to send local credentials anywhere
pass: No text hidden with inline styles
pass: No prompt-injection phrasing
pass: No curl or wget piped into a shell
pass: No recursive delete of root, home or parent
pass: No instruction to read or print local credentials
pass: No base64 blob over 200 characters
pass: No link to a raw IP address
pass: No script tag
Source
GitHub
cratis/ai · 4 stars · license MIT · pushed 2026-11-04 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_5rp76i576xuzs7xw
GET https://markdownregistry.com/api/v1/resolve?ref=cratis/ai/shadcn
GET https://markdownregistry.com/api/v1/blob/2c11d92ccb10278b77080e8044bcc9b4d618846521c807218ff80be94c726110
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