{"slug":"masonjames-shadcn-ui-blocks","name":"Shadcn UI & Blocks","description":"This skill should be used when the user asks to \"build a frontend\", \"create a landing page\", \"add shadcn components\", \"install shadcn blocks\", \"set up shadcn\", \"add a hero section\", \"add pricing section\", \"build a UI with Tailwind\", \"use shadcnblocks\", \"add UI blocks\", \"add a contact form\", \"build a dashboard\", \"create an ecommerce page\", \"add a navbar\", \"add a footer\", or is building any frontend that could leverage shadcn/ui components and Tailwind CSS. It provides knowledge of 1,338 premium blocks and 1,189 free components from ShadcnBlocks, enabling intelligent selection and installation of the right UI elements for any frontend task.","long_description":"---\nname: Shadcn UI & Blocks\ndescription: This skill should be used when the user asks to \"build a frontend\", \"create a landing page\", \"add shadcn components\", \"install shadcn blocks\", \"set up shadcn\", \"add a hero section\", \"add pricing section\", \"build a UI with Tailwind\", \"use shadcnblocks\", \"add UI blocks\", \"add a contact form\", \"build a dashboard\", \"create an ecommerce page\", \"add a navbar\", \"add a footer\", or is building any frontend that could leverage shadcn/ui components and Tailwind CSS. It provides knowledge of 1,338 premium blocks and 1,189 free components from ShadcnBlocks, enabling intelligent selection and installation of the right UI elements for any frontend task.\n---\n\n# Shadcn UI & ShadcnBlocks Integration\n\nThis skill enables building polished frontends using [shadcn/ui](https://ui.shadcn.com/) components and premium [ShadcnBlocks](https://shadcnblocks.com/) templates. Its primary capability is **intelligently recommending the best block or component** for any UI need — not just the right category, but the right *variant* within that category — then handling setup and installation.\n\n## When to Use\n\nActivate this skill when:\n- Creating a new frontend, landing page, marketing site, or app UI\n- The project uses or should use React/Next.js with Tailwind CSS\n- Pre-built UI sections (hero, pricing, features, testimonials, etc.) would accelerate development\n- The user needs a specific UI element (form, chart, dialog, navigation, etc.)\n- The user mentions shadcn, shadcn/ui, shadcnblocks, or Tailwind-based UI components\n\n## Blocks vs Components\n\n| | Blocks | Components |\n|---|--------|------------|\n| **What** | Full page sections | Reusable UI elements |\n| **Size** | Hero, pricing, footer, etc. | Buttons, inputs, dialogs, etc. |\n| **Count** | 1,338 across 71 categories | 1,189 across 60+ groups |\n| **Access** | Premium (API key required) | Free |\n| **Install** | `@shadcnblocks/<name><number>` | `@shadcnblocks/<type>-<style>-<number>` |\n\n**Use blocks** to compose full page layouts from pre-built sections.\n**Use components** for individual UI elements inside custom code.\n\n---\n\n## Intelligent Block Selection\n\n### The 0-2 Question Rule\n\nWhen recommending blocks, follow this progressive disclosure flow:\n\n- **0 questions**: The user's request is specific enough to match directly (e.g., \"add a hero with email capture form\" → match on `cta_pattern: form_capture`)\n- **1 question**: The section is clear but the style/layout is ambiguous (e.g., \"add a feature section\" → ask about layout preference)\n- **2 questions max**: Both section and style are unclear (e.g., \"add a section to show our product\" → ask section type, then style)\n\n**Never ask more than 2 questions.** If still ambiguous, pick the best 2-3 and explain the tradeoffs.\n\n### Decision Flow: Infer → Ask → Shortlist\n\n**Step 1 — Infer from the request (always do this first)**\n\nExtract as many constraints as possible before asking anything:\n- **Section type**: hero, feature, pricing, testimonial, cta, faq, navbar, footer, contact, stats\n- **Goal keywords**: \"signup\" → convert/capture_leads, \"trust\" → trust, \"compare plans\" → compare\n- **Layout hints**: \"grid\" → grid_cards, \"side by side\" → split, \"accordion\" → accordion interaction\n- **Tone hints**: \"clean\" → minimal, \"bold\" → bold, \"professional\" → enterprise\n- **Media hints**: \"with screenshots\" → screenshot media, \"video\" → video media\n- **Density hints**: \"simple\" → minimal density, \"detailed\" → rich density\n\n**Step 2 — Ask targeted questions (only if needed)**\n\nUse `AskUserQuestion` for structured multiple-choice refinement. Consult `references/block-index.md` → `selection_prompts` for the pre-defined questions and options per section.\n\n**Sections with pre-defined prompts:** hero, feature, pricing, testimonial, cta, faq, navbar, footer, contact, stats.\n\nExample for a feature section request:\n\n```\nAskUserQuestion:\n  question: \"How do you want to showcase your features?\"\n  options:\n    - \"Card grid (3-4 columns with icons)\" — Classic feature grid with icon + description per card\n    - \"Alternating image + text rows\" — Deep-dive with large visuals, great for product tours\n    - \"Bento / asymmetric grid\" — Modern editorial layout with mixed-size cards\n    - \"Simple icon list or checklist\" — Compact, scannable benefit list\n```\n\nIf `AskUserQuestion` is unavailable, ask the same question inline with numbered options.\n\n**Step 3 — Match tags and return 2-3 best picks**\n\nMap the user's answer to tag filters, then match against `references/block-index.md` entries. Return exactly **2-3 recommendations** in this format:\n\n```\nHere are the best matches for your [section type]:\n\n1. **[block-id]** — [1-line \"why this one\"]\n   Layout: [layout] · Tone: [tone] · [key differentiator]\n\n2. **[block-id]** — [1-line \"why this one\"]\n   Layout: [layout] · Tone: [tone] · [key differentiator]\n\n3. **[block-id]** — [1-line \"why this one\"]\n   Layout: [layout] · Tone: [tone] · [key differentiator]\n\nWhich one works best? I'll install it and set it up.\n```\n\nAfter the user picks, provide the install command and compose it into the page.\n\n### Tag Dimensions Used for Matching\n\nThese are the key dimensions from `references/block-index.md` used to differentiate blocks:\n\n| Dimension | What it tells you | Example values |\n|-----------|-------------------|----------------|\n| `layout` | Visual arrangement | centered, split_right_media, grid_cards, bento, alternating |\n| `tone` | Aesthetic feel | minimal, modern, bold, enterprise, elegant, playful |\n| `goal` | Business purpose | awareness, explain, trust, convert, capture_leads, compare |\n| `cta_pattern` | Action type | single_primary, primary_secondary, form_capture, multi_action |\n| `media` | Visual content | screenshot, illustration, video, icons, avatars, logos |\n| `interaction` | Dynamic behavior | static, accordion, tabs, carousel, toggle, hover |\n| `items_count` | Number of items displayed | few, moderate, many |\n| `content_density` | How much content | minimal, standard, rich |\n| `complexity` | Implementation effort | low, medium, high |\n\n### When to Use Which Reference\n\n| Scenario | Use |\n|----------|-----|\n| Recommending best-fit blocks (default) | `references/block-index.md` — tagged picks with selection prompts |\n| User wants a specific numbered variant | `references/block-catalog.md` — full catalog with all variant numbers |\n| Section not in block-index (e.g., blog, gallery) | `references/block-catalog.md` — fall back to category defaults |\n| User wants to browse all options | Direct to https://shadcnblocks.com/explorer/blocks |\n| Need an individual UI element | `references/component-catalog.md` — free components |\n\n---\n\n## Quick Category Reference\n\nFor sections **not yet in block-index.md**, use these defaults:\n\n### Content & Blog\n| Need | Category | Start With |\n|------|----------|------------|\n| Blog listing | `blog` (22 variants) | `blog1` |\n| Blog post page | `blogpost` (7 variants) | `blogpost1` |\n| Changelog | `changelog` (7 variants) | `changelog1` |\n| Code snippets | `code-example` (5 variants) | `code-example1` |\n\n### About & Team\n| Need | Category | Start With |\n|------|----------|------------|\n| About section | `about` (17 variants) | `about1` |\n| Team page | `team` (14 variants) | `team1` |\n| Company timeline | `timeline` (15 variants) | `timeline1` |\n| Job listings | `careers` (9 variants) | `careers1` |\n\n### Ecommerce\n| Need | Category | Start With |\n|------|----------|------------|\n| Product cards | `product-card` (10 variants) | `product-card1` |\n| Product listing | `product-list` (10 variants) | `product-list1` |\n| Product detail | `product-detail` (10 variants) | `product-detail1` |\n| Shopping cart | `shopping-cart` (11 variants) | `shopping-cart1` |\n| Checkout | `checkout` (6 variants) | `checkout1` |\n| Order history | `order-history` (5 variants) | `order-history1` |\n\n### App & Dashboard\n| Need | Category | Start With |\n|------|----------|------------|\n| Dashboard charts | `chart-card` (27 variants) | `chart-card10` |\n| Data tables | `data-table` (32 variants) | `data-table1` |\n| App sidebar | `sidebar` (21 variants) | `sidebar1` |\n| App shell layout | `application-shell` (14 variants) | `application-shell1` |\n| User profile | `user-profile` (12 variants) | `user-profile1` |\n\n### Portfolio\n| Need | Category | Start With |\n|------|----------|------------|\n| Image gallery | `gallery` (48 variants) | `gallery1` |\n| Project listing | `projects` (25 variants) | `projects1` |\n| Project detail | `project` (33 variants) | `project1` |\n| Case studies | `case-studies` (6 variants) | `case-studies1` |\n\n### Visual & Decorative\n| Need | Category | Start With |\n|------|----------|------------|\n| Background patterns | `background-pattern` (40 variants) | `background-pattern1` |\n| Animated shaders | `shader` (10 variants) | `shader1` |\n| Bento grid layout | `bento` (8 variants) | `bento1` |\n\n### Navigation & Misc\n| Need | Category | Start With |\n|------|----------|------------|\n| Announcement bar | `banner` (7 variants) | `banner1` |\n| Sale/promo bar | `promo-banner` (7 variants) | `promo-banner1` |\n| Partner logos | `logos` (13 variants) | `logos1` |\n| Comparisons | `compare` (10 variants) | `compare1` |\n\n---\n\n## Selecting the Right Component\n\nConsult `references/component-catalog.md` for the full catalog. Key groups:\n\n| Need | Component Group | Example |\n|------|----------------|---------|\n| Form layout | Form (86) | `form-signin-1` |\n| Labeled input | Field (38) | `field-standard-1` |\n| Input with addon | Input Group (39) | `input-group-standard-1` |\n| Searchable select | Combobox (42) | `combobox-standard-1` |\n| File upload | File Upload (44) | `file-upload-standard-1` |\n| Date picker | Date Picker (8) | `date-picker-standard-1` |\n| Alert message | Alert (25) | `alert-error-1` |\n| Confirm dialog | Alert Dialog (39) | `alert-dialog-standard-1` |\n| Loading skeleton | Skeleton (30) | `skeleton-standard-1` |\n| Toast notification | Sonner (24) | `sonner-standard-1` |\n| Empty state | Empty (22) | `empty-standard-1` |\n| Modal dialog | Dialog (17) | `dialog-standard-1` |\n| Side panel | Sheet (29) / Drawer (22) | `sheet-standard-1` |\n| Accordion | Accordion (21) | `accordion-standard-1` |\n| Data chart | Chart (70) | `chart-standard-1` |\n| Command palette | Command (21) | `command-standard-1` |\n| Dropdown menu | Dropdown Menu (30) | `dropdown-menu-standard-1` |\n| Keyboard shortcuts | KBD (39) | `kbd-standard-1` |\n\n---\n\n## Core Workflow\n\n### 1. Ensure Project Foundation\n\nVerify the project has shadcn/ui initialized. If not:\n\n```bash\nnpx shadcn@latest init\n```\n\nThis creates `components.json` in the project root.\n\n### 2. Configure ShadcnBlocks Registry\n\nCheck if `components.json` already has the `@shadcnblocks` registry. If not, run:\n\n```bash\nbash \"${CLAUDE_PLUGIN_ROOT}/skills/shadcn-ui/scripts/setup-shadcnblocks.sh\" .\n```\n\nThis adds the `@shadcnblocks` registry to `components.json` and sets `SHADCNBLOCKS_API_KEY` in `.env`.\n\nIf the script can't run (e.g., `jq` missing), configure manually:\n\n1. Add to `.env`: `SHADCNBLOCKS_API_KEY=<key>`\n2. Add registry to `components.json`:\n```json\n{\n  \"registries\": {\n    \"@shadcnblocks\": {\n      \"url\": \"https://shadcnblocks.com/r/{name}\",\n      \"headers\": {\n        \"Authorization\": \"Bearer ${SHADCNBLOCKS_API_KEY}\"\n      }\n    }\n  }\n}\n```\n\n### 3. Select and Install Blocks\n\nUse the intelligent selection flow (above) to recommend the best blocks, then install:\n\n```bash\n# Blocks (full page sections)\nnpx shadcn add @shadcnblocks/hero125\nnpx shadcn add @shadcnblocks/pricing3\n\n# Components (UI elements)\nnpx shadcn add @shadcnblocks/accordion-standard-1\nnpx shadcn add @shadcnblocks/file-upload-standard-1\n```\n\n### 4. Compose the Page\n\nImport and compose blocks in the page layout:\n\n```tsx\nimport { Navbar1 } from \"@/components/navbar1\";\nimport { Hero125 } from \"@/components/hero125\";\nimport { Feature3 } from \"@/components/feature3\";\nimport { Footer1 } from \"@/components/footer1\";\n\nexport default function LandingPage() {\n  r","tagline":"This skill should be used when the user asks to \"build a frontend\", \"create a landing page\", \"add shadcn components\", \"install shadcn blocks\", \"set up shadcn\", \"add a hero section\", \"add pricing section\", \"build a UI with Tailwind\", \"use shadcnblocks\", \"add UI blocks\", \"add a con","category":"design-creative","commerce":{"type":"unknown","billing":"unknown","amount":null,"currency":null,"sourceUrl":null,"checkedAt":null,"runtime":"unknown","purchaseUrl":null,"checkout":"external","purchaseRequiresUserConsent":true},"tags":["agent-skill"],"author":"masonjames","verified":false,"attribution":{"status":"registry_indexed","statusLabel":"Registry indexed","shortLabel":"REGISTRY INDEXED","sourceLabel":"incremental repository rescan","sourceDetail":"masonjames/Shadcnblocks-Skill","creatorName":"masonjames","creatorUrl":"https://github.com/masonjames","sourceUrl":"https://github.com/masonjames/shadcnblocks-skill/tree/main/skills/shadcn-ui","indexedBy":"OpenAgentSkill community index","claimUrl":"https://www.openagentskill.com/skills/masonjames-shadcn-ui-blocks#claim-this-skill","claimCta":"Claim this skill","trustNote":"This listing was indexed from public sources and is not marked official until a maintainer claim is approved.","publicNote":"Attribution links to the public repository or creator profile. Creators can claim the listing to update ownership signals."},"stats":{"stars":26,"forks":1,"verified_installs":0,"successful_runs":0,"total_outcomes":0,"rating":0,"review_count":0,"quality_score":22.27},"quality":{"score":43,"tier":"review","label":"Needs review","summary":"Inspect the repository carefully before adding it to an agent workflow.","signals":[{"label":"GitHub stars","value":"26","tone":"neutral"},{"label":"Freshness","value":"9mo ago","tone":"positive"},{"label":"Install ready","value":"Yes","tone":"positive"},{"label":"License","value":"MIT","tone":"neutral"}],"warnings":["Low GitHub adoption signal"]},"trust":{"version":"trust-score-v5","score":58,"base_score":66,"outcome_confidence":0,"tier":"risk","label":"Do not auto-install","summary":"Trust Score v5 found insufficient evidence for agent installation. 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Review the current source before installing.","Repository evidence is available","License is declared","No Agent Proven outcome evidence yet","9mo since push","Financial domain: human review is required before use in a live investment workflow.","Trust Score v5 requires review or sandbox-only use before install."]},"agentCompatibility":["Codex","Claude Code","Cursor","OpenAgentSkill CLI"],"riskSummary":{"level":"medium","label":"Review before production","notes":["Financial research output is not financial advice; require human review before any live investment decision.","Low GitHub adoption signal","Quality score needs review","Permission surface needs review: secrets or environment access, shell or command execution","GitHub adoption: 26 GitHub stars"]},"outcomeEvidence":{"total":0,"successes":0,"failures":0,"notRelevant":0,"successRate":null,"installAttempts":0,"riskBlocked":0,"setupRequired":0,"installSuccessRate":null,"avgOutputQuality":null,"avgTimeToUsefulMs":null,"productionOutcomes":0,"humanReviewRequired":0,"recentSuccessRate":null,"recentFailureRate":null,"uniqueAgents":0,"agentProvenScore":0,"agentProvenLabel":"Needs first agent run","lastOutcomeAt":null,"label":"No agent outcome data yet"},"autoInstall":{"allowed":false,"sandboxRequired":true,"policy":"human_review_before_install","reason":"Compare alternatives before installing."},"outcome_loop":{"version":"openagentskill-agent-outcome-v4","required_after_install":true,"endpoint":"/api/agent/outcome","method":"POST","event_id_source":"feedback.event_id, install_receipt.resolve_event_id, or decision_packet.outcome_feedback.event_id","expected_outcomes":["success","failed","not_relevant","blocked_by_risk","setup_required"],"required_fields":["event_id","skill_slug","task"],"quality_fields":["task_success","output_quality","error_type","human_review_required","used_in_production","workspace","evidence_url","time_to_useful_ms","source_version"],"ranking_inputs_updated":["Trust Score v5 outcome confidence","Agent Proven Score","Resolve ranking task-fit evidence","Skill detail machine-readable metadata","Outcome leaderboard"]},"agent_contract":{"suited_tasks":["design-creative","agent-skill"],"suited_agents":["Codex","Claude Code","Cursor","OpenAgentSkill CLI"],"install_command":null,"trust_score":58,"trust_version":"trust-score-v5","risk_level":"medium","do_not_use_when":["Production credentials, payments, or irreversible account changes without explicit human review","Sensitive private data before reviewing repository code, license, and permission surface","Automatic installation in a production workspace","Autonomous investment, trading, tax, or suitability decisions without a qualified human review"],"before_install":["Read the audit page and machine-readable metadata.","Confirm the install command, license, and permission surface fit the workspace.","Get explicit human approval or choose an alternative before installing."],"after_run":["Report the outcome to /api/agent/outcome using the resolve event id.","Include output_quality, workspace, human_review_required, and evidence_url when available.","Re-resolve before broad production rollout."]},"bestFor":["design-creative","agent-skill"],"doNotUseFor":["Production credentials, payments, or irreversible account changes without explicit human review","Sensitive private data before reviewing repository code, license, and permission surface","Automatic installation in a production workspace","Autonomous investment, trading, tax, or suitability decisions without a qualified human review"],"knownRisks":["Financial research output is not financial advice; require human review before any live investment decision.","Low GitHub adoption signal","Quality score needs review","Permission surface needs review: secrets or environment access, shell or command execution","GitHub adoption: 26 GitHub stars","Stars/forks activity: 26 stars, 1 forks; issue activity unavailable in current metadata","Dependency/runtime risk: command execution surface, credential or environment access","Permission surface: secrets or environment access, shell or command execution"],"backward_compatible":{"trust_score_v4":{"version":"trust-score-v4","score":66,"tier":"review","label":"Manual review","summary":"Potentially useful, but at least one trust signal needs human inspection."}}},"trust_score_v5":{"version":"trust-score-v5","score":58,"base_score":66,"outcome_confidence":0,"tier":"risk","label":"Do not auto-install","summary":"Trust Score v5 found insufficient evidence for agent installation. 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