Skill: xobi667/ui-ux-pro-max (version 0.1.0)

--- name: ui-ux-pro-max description: UI/UX design intelligence and implementation guidance for building polished interfaces. Use when the user asks for UI design, UX flows, information architecture, visual style direction, design systems/tokens, component specs, copy/microcopy, accessibility, or to generate/critique/refine frontend UI (HTML/CSS/JS, React, Next.js, Vue, Svelte, Tailwind). Includes workflows for (1) generating new UI layouts and styling, (2) improving existing UI/UX, (3) producing design-system tokens and component guidelines, and (4) turning UX recommendations into concrete code changes. --- Follow these steps to deliver high-quality UI/UX output with minimal back-and-forth. ## 1) Triage Ask only what you must to avoid wrong work: - Target platform: web / iOS / Android / desktop - Stack (if code changes): React/Next/Vue/Svelte, CSS/Tailwind, component library - Goal and constraints: conversion, speed, brand vibe, accessibility level (WCAG AA?) - What you have: screenshot, Figma, repo, URL, user journey If the user says "全部都要" (design + UX + code + design system), treat it as four deliverables and ship in that order. ## 2) Produce Deliverables (pick what fits) Always be concrete: name components, states, spacing, typography, and interactions. - **UI concept + layout**: Provide a clear visual direction, grid, typography, color system, key screens/sections. - **UX flow**: Map the user journey, critical paths, error/empty/loading states, edge cases. - **Design system**: Tokens (color/typography/spacing/radius/shadow), component rules, accessibility notes. - **Implementation plan**: Exact file-level edits, component breakdown, and acceptance criteria. ## 3) Use Bundled Assets This skill bundles data you can cite for inspiration/standards. - **Design intelligence data**: Read from [REDACTED_SECRET] when you need palettes, patterns, or UI/UX heuristics. - **Upstream reference**: If you need more phrasing/examples, consult `skills/ui-ux-pro-max/references/upstream-skill-content.md`. ## 4) Optional Script (Design System Generator) If you need to quickly generate tokens and page-specific overrides, use the bundled script: ```bash python3 skills/ui-ux-pro-max/scripts/design_system.py --help ``` Prefer running it when the user wants a structured token output (ASCII-friendly). ## Output Standards - Default to ASCII-only tokens/variables unless the project already uses Unicode. - Include: spacing scale, type scale, 2-3 font pair options, color tokens, component states. - Always cover: empty/loading/error, keyboard navigation, focus states, contrast.

path: assets/data/charts.csv
content: No,Data Type,Keywords,Best Chart Type,Secondary Options,Color Guidance,Performance Impact,Accessibility Notes,Library Recommendation,Interactive Level
1,Trend Over Time,"trend, time-series, line, growth, timeline, progress",Line Chart,"Area Chart, Smooth Area",Primary: #0080FF. Multiple series: use distinct colors. Fill: 20% opacity,⚡ Excellent (optimized),✓ Clear line patterns for colorblind users. Add pattern overlays.,"Chart.js, Recharts, ApexCharts",Hover + Zoom
2,Compare Categories,"compare, categories, bar, comparison, ranking",Bar Chart (Horizontal or Vertical),"Column Chart, Grouped Bar",Each bar: distinct color. Category: grouped same color. Sorted: descending order,⚡ Excellent,✓ Easy to compare. Add value labels on bars for clarity.,"Chart.js, Recharts, D3.js",Hover + Sort
3,Part-to-Whole,"part-to-whole, pie, donut, percentage, proportion, share",Pie Chart or Donut,"Stacked Bar, Treemap",Colors: 5-6 max. Contrasting palette. Large slices first. Use labels.,⚡ Good (limit 6 slices),⚠ Hard for accessibility. Better: Stacked bar with legend. Avoid pie if >5 items.,"Chart.js, Recharts, D3.js",Hover + Drill
4,Correlation/Distribution,"correlation, distribution, scatter, relationship, pattern",Scatter Plot or Bubble Chart,"Heat Map, Matrix",Color axis: gradient (blue-red). Size: relative. Opacity: 0.6-0.8 to show density,⚠ Moderate (many points),⚠ Provide data table alternative. Use pattern + color distinction.,"D3.js, Plotly, Recharts",Hover + Brush
5,Heatmap/Intensity,"heatmap, heat-map, intensity, density, matrix",Heat Map or Choropleth,"Grid Heat Map, Bubble Heat",Gradient: Cool (blue) to Hot (red). Scale: clear legend. Divergent for ±data,⚡ Excellent (color CSS),⚠ Colorblind: Use pattern overlay. Provide numerical legend.,"D3.js, Plotly, ApexCharts",Hover + Zoom
6,Geographic Data,"geographic, map, location, region, geo, spatial","Choropleth Map, Bubble Map",Geographic Heat Map,Regional: single color gradient or categorized colors. Legend: clear scale,⚠ Moderate (rendering),⚠ Include text labels for regions. Provide data table alternative.,"D3.js, Mapbox, Leaflet",Pan + Zoom + Drill
7,Funnel/Flow,funnel/flow,"Funnel Chart, Sankey",Waterfall (for flows),Stages: gradient (starting color → ending color). Show conversion %,⚡ Good,✓ Clear stage labels + percentages. Good for accessibility if labeled.,"D3.js, Recharts, Custom SVG",Hover + Drill
8,Performance vs Target,performance-vs-target,Gauge Chart or Bullet Chart,"Dial, Thermometer",Performance: Red→Yellow→Green gradient. Target: marker line. Threshold colors,⚡ Good,✓ Add numerical value + percentage label beside gauge.,"D3.js, ApexCharts, Custom SVG",Hover
9,Time-Series Forecast,time-series-forecast,Line with Confidence Band,Ribbon Chart,Actual: solid line #0080FF. Forecast: dashed #FF9500. Band: light shading,⚡ Good,✓ Clearly distinguish actual vs forecast. Add legend.,"Chart.js, ApexCharts, Plotly",Hover + Toggle
10,Anomaly Detection,anomaly-detection,Line Chart with Highlights,Scatter with Alert,Normal: blue #0080FF. Anomaly: red #FF0000 circle/square marker + alert,⚡ Good,✓ Circle/marker for anomalies. Add text alert annotation.,"D3.js, Plotly, ApexCharts",Hover + Alert
11,Hierarchical/Nested Data,hierarchical/nested-data,Treemap,"Sunburst, Nested Donut, Icicle",Parent: distinct hues. Children: lighter shades. White borders 2-3px.,⚠ Moderate,⚠ Poor - provide table alternative. Label large areas.,"D3.js, Recharts, ApexCharts",Hover + Drilldown
12,Flow/Process Data,flow/process-data,Sankey Diagram,"Alluvial, Chord Diagram",Gradient from source to target. Opacity 0.4-0.6 for flows.,⚠ Moderate,⚠ Poor - provide flow table alternative.,"D3.js (d3-sankey), Plotly",Hover + Drilldown
13,Cumulative Changes,cumulative-changes,Waterfall Chart,"Stacked Bar, Cascade",Increases: #4CAF50. Decreases: #F44336. Start: #2196F3. End: #0D47A1.,⚡ Good,✓ Good - clear directional colors with labels.,"ApexCharts, Highcharts, Plotly",Hover
14,Multi-Variable Comparison,multi-variable-comparison,Radar/Spider Chart,"Parallel Coordinates, Grouped Bar",Single: #0080FF 20% fill. Multiple: distinct colors per dataset.,⚡ Good,⚠ Moderate - limit 5-8 axes. Add data table.,"Chart.js, Recharts, ApexCharts",Hover + Toggle
15,Stock/Trading OHLC,stock/trading-ohlc,Candlestick Chart,"OHLC Bar, Heikin-Ashi",Bullish: #26A69A. Bearish: #EF5350. Volume: 40% opacity below.,⚡ Good,⚠ Moderate - provide OHLC data table.,"Lightweight Charts (TradingView), ApexCharts",Real-time + Hover + Zoom
16,Relationship/Connection Data,relationship/connection-data,Network Graph,"Hierarchical Tree, Adjacency Matrix",Node types: categorical colors. Edges: #90A4AE 60% opacity.,❌ Poor (500+ nodes struggles),❌ Very Poor - provide adjacency list alternative.,"D3.js (d3-force), Vis.js, Cytoscape.js",Drilldown + Hover + Drag
17,Distribution/Statistical,distribution/statistical,Box Plot,"Violin Plot, Beeswarm",Box: #BBDEFB. Border: #1976D2. Median: #D32F2F. Outliers: #F44336.,⚡ Excellent,"✓ Good - include stats table (min, Q1, median, Q3, max).","Plotly, D3.js, Chart.js (plugin)",Hover
18,Performance vs Target (Compact),performance-vs-target-(compact),Bullet Chart,"Gauge, Progress Bar","Ranges: #FFCDD2, #FFF9C4, #C8E6C9. Performance: #1976D2. Target: black 3px.",⚡ Excellent,✓ Excellent - compact with clear values.,"D3.js, Plotly, Custom SVG",Hover
19,Proportional/Percentage,proportional/percentage,Waffle Chart,"Pictogram, Stacked Bar 100%",10x10 grid. 3-5 categories max. 2-3px spacing between squares.,⚡ Good,✓ Good - better than pie for accessibility.,"D3.js, React-Waffle, Custom CSS Grid",Hover
20,Hierarchical Proportional,hierarchical-proportional,Sunburst Chart,"Treemap, Icicle, Circle Packing",Center to outer: darker to lighter. 15-20% lighter per level.,⚠ Moderate,⚠ Poor - provide hierarchy table alternative.,"D3.js (d3-hierarchy), Recharts, ApexCharts",Drilldown + Hover
21,Root Cause Analysis,"root cause, decomposition, tree, hierarchy, drill-down, ai-split",Decomposition Tree,"Decision Tree, Flow Chart",Nodes: #2563EB (Primary) vs #EF4444 (Negative impact). Connectors: Neutral grey.,⚠ Moderate (calculation heavy),✓ clear hierarchy. Allow keyboard navigation for nodes.,"Power BI (native), React-Flow, Custom D3.js",Drill + Expand
22,3D Spatial Data,"3d, spatial, immersive, terrain, molecular, volumetric",3D Scatter/Surface Plot,"Volumetric Rendering, Point Cloud",Depth cues: lighting/shading. Z-axis: color gradient (cool to warm).,❌ Heavy (WebGL required),❌ Poor - requires alternative 2D view or data table.,"Three.js, Deck.gl, Plotly 3D",Rotate + Zoom + VR
23,Real-Time Streaming,"streaming, real-time, ticker, live, velocity, pulse",Streaming Area Chart,"Ticker Tape, Moving Gauge",Current: Bright Pulse (#00FF00). History: Fading opacity. Grid: Dark.,⚡ Optimized (canvas/webgl),⚠ Flashing elements - provide pause button. High contrast.,Smoothed D3.js, CanvasJS
24,Sentiment/Emotion,"sentiment, emotion, nlp, opinion, feeling",Word Cloud with Sentiment,"Sentiment Arc, Radar Chart",Positive: #22C55E. Negative: #EF4444. Neutral: #94A3B8. Size = Frequency.,⚡ Good,⚠ Word clouds poor for screen readers. Use list view.,"D3-cloud, Highcharts, Nivo",Hover + Filter
25,Process Mining,"process, mining, variants, path, bottleneck, log",Process Map / Graph,"Directed Acyclic Graph (DAG), Petri Net",Happy path: #10B981 (Thick). Deviations: #F59E0B (Thin). Bottlenecks: #EF4444.,⚠ Moderate to Heavy,⚠ Complex graphs hard to navigate. Provide path summary.,"React-Flow, Cytoscape.js, Recharts",Drag + Node-Click


path: assets/data/colors.csv
content: No,Product Type,Primary (Hex),Secondary (Hex),CTA (Hex),Background (Hex),Text (Hex),Border (Hex),Notes
1,SaaS (General),#2563EB,#3B82F6,#F97316,#F8FAFC,#1E293B,#E2E8F0,Trust blue + orange CTA contrast
2,Micro SaaS,#6366F1,#818CF8,#10B981,#F5F3FF,#1E1B4B,#E0E7FF,Indigo primary + emerald CTA
3,E-commerce,#059669,#10B981,#F97316,#ECFDF5,#064E3B,#A7F3D0,Success green + urgency orange
4,E-commerce Luxury,#1C1917,#44403C,#CA8A04,#FAFAF9,#0C0A09,#D6D3D1,Premium dark + gold accent
5,Service Landing Page,#0EA5E9,#38BDF8,#F97316,#F0F9FF,#0C4A6E,#BAE6FD,Sky blue trust + warm CTA
6,B2B Service,#0F172A,#334155,#0369A1,#F8FAFC,#020617,#E2E8F0,Professional navy + blue CTA
7,Financial Dashboard,#0F172A,#1E293B,#22C55E,#020617,#F8FAFC,#334155,Dark bg + green positive indicators
8,Analytics Dashboard,#1E40AF,#3B82F6,#F59E0B,#F8FAFC,#1E3A8A,#DBEAFE,Blue data + amber highlights
9,Healthcare App,#0891B2,#22D3EE,#059669,#ECFEFF,#164E63,#A5F3FC,Calm cyan + health green
10,Educational App,#4F46E5,#818CF8,#F97316,#EEF2FF,#1E1B4B,#C7D2FE,Playful indigo + energetic orange
11,Creative Agency,#EC4899,#F472B6,#06B6D4,#FDF2F8,#831843,#FBCFE8,Bold pink + cyan accent
12,Portfolio/Personal,#18181B,#3F3F46,#2563EB,#FAFAFA,#09090B,#E4E4E7,Monochrome + blue accent
13,Gaming,#7C3AED,#A78BFA,#F43F5E,#0F0F23,#E2E8F0,#4C1D95,Neon purple + rose action
14,Government/Public Service,#0F172A,#334155,#0369A1,#F8FAFC,#020617,#E2E8F0,High contrast navy + blue
15,Fintech/Crypto,#F59E0B,#FBBF24,#8B5CF6,#0F172A,#F8FAFC,#334155,Gold trust + purple tech
16,Social Media App,#E11D48,#FB7185,#2563EB,#FFF1F2,#881337,#FECDD3,Vibrant rose + engagement blue
17,Productivity Tool,#0D9488,#14B8A6,#F97316,#F0FDFA,#134E4A,#99F6E4,Teal focus + action orange
18,Design System/Component Library,#4F46E5,#6366F1,#F97316,#EEF2FF,#312E81,#C7D2FE,Indigo brand + doc hierarchy
19,AI/Chatbot Platform,#7C3AED,#A78BFA,#06B6D4,#FAF5FF,#1E1B4B,#DDD6FE,AI purple + cyan interactions
20,NFT/Web3 Platform,#8B5CF6,#A78BFA,#FBBF24,#0F0F23,#F8FAFC,#4C1D95,Purple tech + gold value
21,Creator Economy Platform,#EC4899,#F472B6,#F97316,#FDF2F8,#831843,#FBCFE8,Creator pink + engagement orange
22,Sustainability/ESG Platform,#059669,#10B981,#0891B2,#ECFDF5,#064E3B,#A7F3D0,Nature green + ocean blue
23,Remote Work/Collaboration Tool,#6366F1,#818CF8,#10B981,#F5F3FF,#312E81,#E0E7FF,Calm indigo + success green
24,Mental Health App,#8B5CF6,#C4B5FD,#10B981,#FAF5FF,#4C1D95,#EDE9FE,Calming lavender + wellness green
25,Pet Tech App,#F97316,#FB923C,#2563EB,#FFF7ED,#9A3412,#FED7AA,Playful orange + trust blue
26,Smart Home/IoT Dashboard,#1E293B,#334155,#22C55E,#0F172A,#F8FAFC,#475569,Dark tech + status green
27,EV/Charging Ecosystem,#0891B2,#22D3EE,#22C55E,#ECFEFF,#164E63,#A5F3FC,Electric cyan + eco green
28,Subscription Box Service,#D946EF,#E879F9,#F97316,#FDF4FF,#86198F,#F5D0FE,Excitement purple + urgency orange
29,Podcast Platform,#1E1B4B,#312E81,#F97316,#0F0F23,#F8FAFC,#4338CA,Dark audio + warm accent
30,Dating App,#E11D48,#FB7185,#F97316,#FFF1F2,#881337,#FECDD3,Romantic rose + warm orange
31,Micro-Credentials/Badges Platform,#0369A1,#0EA5E9,#CA8A04,#F0F9FF,#0C4A6E,#BAE6FD,Trust blue + achievement gold
32,Knowledge Base/Documentation,#475569,#64748B,#2563EB,#F8FAFC,#1E293B,#E2E8F0,Neutral grey + link blue
33,Hyperlocal Services,#059669,#10B981,#F97316,#ECFDF5,#064E3B,#A7F3D0,Location green + action orange
34,Beauty/Spa/Wellness Service,#EC4899,#F9A8D4,#8B5CF6,#FDF2F8,#831843,#FBCFE8,Soft pink + lavender luxury
35,Luxury/Premium Brand,#1C1917,#44403C,#CA8A04,#FAFAF9,#0C0A09,#D6D3D1,Premium black + gold accent
36,Restaurant/Food Service,#DC2626,#F87171,#CA8A04,#FEF2F2,#450A0A,#FECACA,Appetizing red + warm gold
37,Fitness/Gym App,#F97316,#FB923C,#22C55E,#1F2937,#F8FAFC,#374151,Energy orange + success green
38,Real Estate/Property,#0F766E,#14B8A6,#0369A1,#F0FDFA,#134E4A,#99F6E4,Trust teal + professional blue
39,Travel/Tourism Agency,#0EA5E9,#38BDF8,#F97316,#F0F9FF,#0C4A6E,#BAE6FD,Sky blue + adventure orange
40,Hotel/Hospitality,#1E3A8A,#3B82F6,#CA8A04,#F8FAFC,#1E40AF,#BFDBFE,Luxury navy + gold service
41,Wedding/Event Planning,#DB2777,#F472B6,#CA8A04,#FDF2F8,#831843,#FBCFE8,Romantic pink + elegant gold
42,Legal Services,#1E3A8A,#1E40AF,#B45309,#F8FAFC,#0F172A,#CBD5E1,Authority navy + trust gold
43,Insurance Platform,#0369A1,#0EA5E9,#22C55E,#F0F9FF,#0C4A6E,#BAE6FD,Security blue + protected green
44,Banking/Traditional Finance,#0F172A,#1E3A8A,#CA8A04,#F8FAFC,#020617,#E2E8F0,Trust navy + premium gold
45,Online Course/E-learning,#0D9488,#2DD4BF,#F97316,#F0FDFA,#134E4A,#5EEAD4,Progress teal + achievement orange
46,Non-profit/Charity,#0891B2,#22D3EE,#F97316,#ECFEFF,#164E63,#A5F3FC,Compassion blue + action orange
47,Music Streaming,#1E1B4B,#4338CA,#22C55E,#0F0F23,#F8FAFC,#312E81,Dark audio + play green
48,Video Streaming/OTT,#0F0F23,#1E1B4B,#E11D48,#000000,#F8FAFC,#312E81,Cinema dark + play red
49,Job Board/Recruitment,#0369A1,#0EA5E9,#22C55E,#F0F9FF,#0C4A6E,#BAE6FD,Professional blue + success green
50,Marketplace (P2P),#7C3AED,#A78BFA,#22C55E,#FAF5FF,#4C1D95,#DDD6FE,Trust purple + transaction green
51,Logistics/Delivery,#2563EB,#3B82F6,#F97316,#EFF6FF,#1E40AF,#BFDBFE,Tracking blue + delivery orange
52,Agriculture/Farm Tech,#15803D,#22C55E,#CA8A04,#F0FDF4,#14532D,#BBF7D0,Earth green + harvest gold
53,Construction/Architecture,#64748B,#94A3B8,#F97316,#F8FAFC,#334155,#E2E8F0,Industrial grey + safety orange
54,Automotive/Car Dealership,#1E293B,#334155,#DC2626,#F8FAFC,#0F172A,#E2E8F0,Premium dark + action red
55,Photography Studio,#18181B,#27272A,#F8FAFC,#000000,#FAFAFA,#3F3F46,Pure black + white contrast
56,Coworking Space,#F59E0B,#FBBF24,#2563EB,#FFFBEB,#78350F,#FDE68A,Energetic amber + booking blue
57,Cleaning Service,#0891B2,#22D3EE,#22C55E,#ECFEFF,#164E63,#A5F3FC,Fresh cyan + clean green
58,Home Services (Plumber/Electrician),#1E40AF,#3B82F6,#F97316,#EFF6FF,#1E3A8A,#BFDBFE,Professional blue + urgent orange
59,Childcare/Daycare,#F472B6,#FBCFE8,#22C55E,#FDF2F8,#9D174D,#FCE7F3,Soft pink + safe green
60,Senior Care/Elderly,#0369A1,#38BDF8,#22C55E,#F0F9FF,#0C4A6E,#E0F2FE,Calm blue + reassuring green
61,Medical Clinic,#0891B2,#22D3EE,#22C55E,#F0FDFA,#134E4A,#CCFBF1,Medical teal + health green
62,Pharmacy/Drug Store,#15803D,#22C55E,#0369A1,#F0FDF4,#14532D,#BBF7D0,Pharmacy green + trust blue
63,Dental Practice,#0EA5E9,#38BDF8,#FBBF24,#F0F9FF,#0C4A6E,#BAE6FD,Fresh blue + smile yellow
64,Veterinary Clinic,#0D9488,#14B8A6,#F97316,#F0FDFA,#134E4A,#99F6E4,Caring teal + warm orange
65,Florist/Plant Shop,#15803D,#22C55E,#EC4899,#F0FDF4,#14532D,#BBF7D0,Natural green + floral pink
66,Bakery/Cafe,#92400E,#B45309,#F8FAFC,#FEF3C7,#78350F,#FDE68A,Warm brown + cream white
67,Coffee Shop,#78350F,#92400E,#FBBF24,#FEF3C7,#451A03,#FDE68A,Coffee brown + warm gold
68,Brewery/Winery,#7C2D12,#B91C1C,#CA8A04,#FEF2F2,#450A0A,#FECACA,Deep burgundy + craft gold
69,Airline,#1E3A8A,#3B82F6,#F97316,#EFF6FF,#1E40AF,#BFDBFE,Sky blue + booking orange
70,News/Media Platform,#DC2626,#EF4444,#1E40AF,#FEF2F2,#450A0A,#FECACA,Breaking red + link blue
71,Magazine/Blog,#18181B,#3F3F46,#EC4899,#FAFAFA,#09090B,#E4E4E7,Editorial black + accent pink
72,Freelancer Platform,#6366F1,#818CF8,#22C55E,#EEF2FF,#312E81,#C7D2FE,Creative indigo + hire green
73,Consulting Firm,#0F172A,#334155,#CA8A04,#F8FAFC,#020617,#E2E8F0,Authority navy + premium gold
74,Marketing Agency,#EC4899,#F472B6,#06B6D4,#FDF2F8,#831843,#FBCFE8,Bold pink + creative cyan
75,Event Management,#7C3AED,#A78BFA,#F97316,#FAF5FF,#4C1D95,#DDD6FE,Excitement purple + action orange
76,Conference/Webinar Platform,#1E40AF,#3B82F6,#22C55E,#EFF6FF,#1E3A8A,#BFDBFE,Professional blue + join green
77,Membership/Community,#7C3AED,#A78BFA,#22C55E,#FAF5FF,#4C1D95,#DDD6FE,Community purple + join green
78,Newsletter Platform,#0369A1,#0EA5E9,#F97316,#F0F9FF,#0C4A6E,#BAE6FD,Trust blue + subscribe orange
79,Digital Products/Downloads,#6366F1,#818CF8,#22C55E,#EEF2FF,#312E81,#C7D2FE,Digital indigo + buy green
80,Church/Religious Organization,#7C3AED,#A78BFA,#CA8A04,#FAF5FF,#4C1D95,#DDD6FE,Spiritual purple + warm gold
81,Sports Team/Club,#DC2626,#EF4444,#FBBF24,#FEF2F2,#7F1D1D,#FECACA,Team red + championship gold
82,Museum/Gallery,#18181B,#27272A,#F8FAFC,#FAFAFA,#09090B,#E4E4E7,Gallery black + white space
83,Theater/Cinema,#1E1B4B,#312E81,#CA8A04,#0F0F23,#F8FAFC,#4338CA,Dramatic dark + spotlight gold
84,Language Learning App,#4F46E5,#818CF8,#22C55E,#EEF2FF,#312E81,#C7D2FE,Learning indigo + progress green
85,Coding Bootcamp,#0F172A,#1E293B,#22C55E,#020617,#F8FAFC,#334155,Terminal dark + success green
86,Cybersecurity Platform,#00FF41,#0D0D0D,#FF3333,#000000,#E0E0E0,#1F1F1F,Matrix green + alert red
87,Developer Tool / IDE,#1E293B,#334155,#22C55E,#0F172A,#F8FAFC,#475569,Code dark + run green
88,Biotech / Life Sciences,#0EA5E9,#0284C7,#10B981,#F0F9FF,#0C4A6E,#BAE6FD,DNA blue + life green
89,Space Tech / Aerospace,#F8FAFC,#94A3B8,#3B82F6,#0B0B10,#F8FAFC,#1E293B,Star white + launch blue
90,Architecture / Interior,#171717,#404040,#D4AF37,#FFFFFF,#171717,#E5E5E5,Minimal black + accent gold
91,Quantum Computing,#00FFFF,#7B61FF,#FF00FF,#050510,#E0E0FF,#333344,Quantum cyan + interference purple
92,Biohacking / Longevity,#FF4D4D,#4D94FF,#00E676,#F5F5F7,#1C1C1E,#E5E5EA,Bio red/blue + vitality green
93,Autonomous Systems,#00FF41,#008F11,#FF3333,#0D1117,#E6EDF3,#30363D,Terminal green + alert red
94,Generative AI Art,#18181B,#3F3F46,#EC4899,#FAFAFA,#09090B,#E4E4E7,Canvas neutral + creative pink
95,Spatial / Vision OS,#FFFFFF,#E5E5E5,#007AFF,#888888,#000000,#CCCCCC,Glass white + system blue
96,Climate Tech,#059669,#10B981,#FBBF24,#ECFDF5,#064E3B,#A7F3D0,Nature green + solar gold


path: assets/data/icons.csv
content: No,Category,Icon Name,Keywords,Library,Import Code,Usage,Best For,Style
1,Navigation,menu,hamburger menu navigation toggle bars,Lucide,import { Menu } from 'lucide-react',<Menu />,Mobile navigation drawer toggle sidebar,Outline
2,Navigation,arrow-left,back previous return navigate,Lucide,import { ArrowLeft } from 'lucide-react',<ArrowLeft />,Back button breadcrumb navigation,Outline
3,Navigation,arrow-right,next forward continue navigate,Lucide,import { ArrowRight } from 'lucide-react',<ArrowRight />,Forward button next step CTA,Outline
4,Navigation,chevron-down,dropdown expand accordion select,Lucide,import { ChevronDown } from 'lucide-react',<ChevronDown />,Dropdown toggle accordion header,Outline
5,Navigation,chevron-up,collapse close accordion minimize,Lucide,import { ChevronUp } from 'lucide-react',<ChevronUp />,Accordion collapse minimize,Outline
6,Navigation,home,homepage main dashboard start,Lucide,import { Home } from 'lucide-react',<Home />,Home navigation main page,Outline
7,Navigation,x,close cancel dismiss remove exit,Lucide,import { X } from 'lucide-react',<X />,Modal close dismiss button,Outline
8,Navigation,external-link,open new tab external link,Lucide,import { ExternalLink } from 'lucide-react',<ExternalLink />,External link indicator,Outline
9,Action,plus,add create new insert,Lucide,import { Plus } from 'lucide-react',<Plus />,Add button create new item,Outline
10,Action,minus,remove subtract decrease delete,Lucide,import { Minus } from 'lucide-react',<Minus />,Remove item quantity decrease,Outline
11,Action,trash-2,delete remove discard bin,Lucide,import { Trash2 } from 'lucide-react',<Trash2 />,Delete action destructive,Outline
12,Action,edit,pencil modify change update,Lucide,import { Edit } from 'lucide-react',<Edit />,Edit button modify content,Outline
13,Action,save,disk store persist save,Lucide,import { Save } from 'lucide-react',<Save />,Save button persist changes,Outline
14,Action,download,export save file download,Lucide,import { Download } from 'lucide-react',<Download />,Download file export,Outline
15,Action,upload,import file attach upload,Lucide,import { Upload } from 'lucide-react',<Upload />,Upload file import,Outline
16,Action,copy,duplicate clipboard paste,Lucide,import { Copy } from 'lucide-react',<Copy />,Copy to clipboard,Outline
17,Action,share,social distribute send,Lucide,import { Share } from 'lucide-react',<Share />,Share button social,Outline
18,Action,search,find lookup filter query,Lucide,import { Search } from 'lucide-react',<Search />,Search input bar,Outline
19,Action,filter,sort refine narrow options,Lucide,import { Filter } from 'lucide-react',<Filter />,Filter dropdown sort,Outline
20,Action,settings,gear cog preferences config,Lucide,import { Settings } from 'lucide-react',<Settings />,Settings page configuration,Outline
21,Status,check,success done complete verified,Lucide,import { Check } from 'lucide-react',<Check />,Success state checkmark,Outline
22,Status,check-circle,success verified approved complete,Lucide,import { CheckCircle } from 'lucide-react',<CheckCircle />,Success badge verified,Outline
23,Status,x-circle,error failed cancel rejected,Lucide,import { XCircle } from 'lucide-react',<XCircle />,Error state failed,Outline
24,Status,alert-triangle,warning caution attention danger,Lucide,import { AlertTriangle } from 'lucide-react',<AlertTriangle />,Warning message caution,Outline
25,Status,alert-circle,info notice information help,Lucide,import { AlertCircle } from 'lucide-react',<AlertCircle />,Info notice alert,Outline
26,Status,info,information help tooltip details,Lucide,import { Info } from 'lucide-react',<Info />,Information tooltip help,Outline
27,Status,loader,loading spinner processing wait,Lucide,import { Loader } from 'lucide-react',<Loader className="animate-spin" />,Loading state spinner,Outline
28,Status,clock,time schedule pending wait,Lucide,import { Clock } from 'lucide-react',<Clock />,Pending time schedule,Outline
29,Communication,mail,email message inbox letter,Lucide,import { Mail } from 'lucide-react',<Mail />,Email contact inbox,Outline
30,Communication,message-circle,chat comment bubble conversation,Lucide,import { MessageCircle } from 'lucide-react',<MessageCircle />,Chat comment message,Outline
31,Communication,phone,call mobile telephone contact,Lucide,import { Phone } from 'lucide-react',<Phone />,Phone contact call,Outline
32,Communication,send,submit dispatch message airplane,Lucide,import { Send } from 'lucide-react',<Send />,Send message submit,Outline
33,Communication,bell,notification alert ring reminder,Lucide,import { Bell } from 'lucide-react',<Bell />,Notification bell alert,Outline
34,User,user,profile account person avatar,Lucide,import { User } from 'lucide-react',<User />,User profile account,Outline
35,User,users,team group people members,Lucide,import { Users } from 'lucide-react',<Users />,Team group members,Outline
36,User,user-plus,add invite new member,Lucide,import { UserPlus } from 'lucide-react',<UserPlus />,Add user invite,Outline
37,User,log-in,signin authenticate enter,Lucide,import { LogIn } from 'lucide-react',<LogIn />,Login signin,Outline
38,User,log-out,signout exit leave logout,Lucide,import { LogOut } from 'lucide-react',<LogOut />,Logout signout,Outline
39,Media,image,photo picture gallery thumbnail,Lucide,import { Image } from 'lucide-react',<Image />,Image photo gallery,Outline
40,Media,video,movie film play record,Lucide,import { Video } from 'lucide-react',<Video />,Video player media,Outline
41,Media,play,start video audio media,Lucide,import { Play } from 'lucide-react',<Play />,Play button video audio,Outline
42,Media,pause,stop halt video audio,Lucide,import { Pause } from 'lucide-react',<Pause />,Pause button media,Outline
43,Media,volume-2,sound audio speaker music,Lucide,import { Volume2 } from 'lucide-react',<Volume2 />,Volume audio sound,Outline
44,Media,mic,microphone record voice audio,Lucide,import { Mic } from 'lucide-react',<Mic />,Microphone voice record,Outline
45,Media,camera,photo capture snapshot picture,Lucide,import { Camera } from 'lucide-react',<Camera />,Camera photo capture,Outline
46,Commerce,shopping-cart,cart checkout basket buy,Lucide,import { ShoppingCart } from 'lucide-react',<ShoppingCart />,Shopping cart e-commerce,Outline
47,Commerce,shopping-bag,purchase buy store bag,Lucide,import { ShoppingBag } from 'lucide-react',<ShoppingBag />,Shopping bag purchase,Outline
48,Commerce,credit-card,payment card checkout stripe,Lucide,import { CreditCard } from 'lucide-react',<CreditCard />,Payment credit card,Outline
49,Commerce,dollar-sign,money price currency cost,Lucide,import { DollarSign } from 'lucide-react',<DollarSign />,Price money currency,Outline
50,Commerce,tag,label price discount sale,Lucide,import { Tag } from 'lucide-react',<Tag />,Price tag label,Outline
51,Commerce,gift,present reward bonus offer,Lucide,import { Gift } from 'lucide-react',<Gift />,Gift reward offer,Outline
52,Commerce,percent,discount sale offer promo,Lucide,import { Percent } from 'lucide-react',<Percent />,Discount percentage sale,Outline
53,Data,bar-chart,analytics statistics graph metrics,Lucide,import { BarChart } from 'lucide-react',<BarChart />,Bar chart analytics,Outline
54,Data,pie-chart,statistics distribution breakdown,Lucide,import { PieChart } from 'lucide-react',<PieChart />,Pie chart distribution,Outline
55,Data,trending-up,growth increase positive trend,Lucide,import { TrendingUp } from 'lucide-react',<TrendingUp />,Growth trend positive,Outline
56,Data,trending-down,decline decrease negative trend,Lucide,import { TrendingDown } from 'lucide-react',<TrendingDown />,Decline trend negative,Outline
57,Data,activity,pulse heartbeat monitor live,Lucide,import { Activity } from 'lucide-react',<Activity />,Activity monitor pulse,Outline
58,Data,database,storage server data backend,Lucide,import { Database } from 'lucide-react',<Database />,Database storage,Outline
59,Files,file,document page paper doc,Lucide,import { File } from 'lucide-react',<File />,File document,Outline
60,Files,file-text,document text page article,Lucide,import { FileText } from 'lucide-react',<FileText />,Text document article,Outline
61,Files,folder,directory organize group files,Lucide,import { Folder } from 'lucide-react',<Folder />,Folder directory,Outline
62,Files,folder-open,expanded browse files view,Lucide,import { FolderOpen } from 'lucide-react',<FolderOpen />,Open folder browse,Outline
63,Files,paperclip,attachment attach file link,Lucide,import { Paperclip } from 'lucide-react',<Paperclip />,Attachment paperclip,Outline
64,Files,link,url hyperlink chain connect,Lucide,import { Link } from 'lucide-react',<Link />,Link URL hyperlink,Outline
65,Files,clipboard,paste copy buffer notes,Lucide,import { Clipboard } from 'lucide-react',<Clipboard />,Clipboard paste,Outline
66,Layout,grid,tiles gallery layout dashboard,Lucide,import { Grid } from 'lucide-react',<Grid />,Grid layout gallery,Outline
67,Layout,list,rows table lines items,Lucide,import { List } from 'lucide-react',<List />,List view rows,Outline
68,Layout,columns,layout split dual sidebar,Lucide,import { Columns } from 'lucide-react',<Columns />,Column layout split,Outline
69,Layout,maximize,fullscreen expand enlarge zoom,Lucide,import { Maximize } from 'lucide-react',<Maximize />,Fullscreen maximize,Outline
70,Layout,minimize,reduce shrink collapse exit,Lucide,import { Minimize } from 'lucide-react',<Minimize />,Minimize reduce,Outline
71,Layout,sidebar,panel drawer navigation menu,Lucide,import { Sidebar } from 'lucide-react',<Sidebar />,Sidebar panel,Outline
72,Social,heart,like love favorite wishlist,Lucide,import { Heart } from 'lucide-react',<Heart />,Like favorite love,Outline
73,Social,star,rating review favorite bookmark,Lucide,import { Star } from 'lucide-react',<Star />,Star rating favorite,Outline
74,Social,thumbs-up,like approve agree positive,Lucide,import { ThumbsUp } from 'lucide-react',<ThumbsUp />,Like approve thumb,Outline
75,Social,thumbs-down,dislike disapprove disagree negative,Lucide,import { ThumbsDown } from 'lucide-react',<ThumbsDown />,Dislike disapprove,Outline
76,Social,bookmark,save later favorite mark,Lucide,import { Bookmark } from 'lucide-react',<Bookmark />,Bookmark save,Outline
77,Social,flag,report mark important highlight,Lucide,import { Flag } from 'lucide-react',<Flag />,Flag report,Outline
78,Device,smartphone,mobile phone device touch,Lucide,import { Smartphone } from 'lucide-react',<Smartphone />,Mobile smartphone,Outline
79,Device,tablet,ipad device touch screen,Lucide,import { Tablet } from 'lucide-react',<Tablet />,Tablet device,Outline
80,Device,monitor,desktop screen computer display,Lucide,import { Monitor } from 'lucide-react',<Monitor />,Desktop monitor,Outline
81,Device,laptop,notebook computer portable device,Lucide,import { Laptop } from 'lucide-react',<Laptop />,Laptop computer,Outline
82,Device,printer,print document output paper,Lucide,import { Printer } from 'lucide-react',<Printer />,Printer print,Outline
83,Security,lock,secure password protected private,Lucide,import { Lock } from 'lucide-react',<Lock />,Lock secure,Outline
84,Security,unlock,open access unsecure public,Lucide,import { Unlock } from 'lucide-react',<Unlock />,Unlock open,Outline
85,Security,shield,protection security safe guard,Lucide,import { Shield } from 'lucide-react',<Shield />,Shield protection,Outline
86,Security,key,password access unlock login,Lucide,import { Key } from 'lucide-react',<Key />,Key password,Outline
87,Security,eye,view show visible password,Lucide,import { Eye } from 'lucide-react',<Eye />,Show password view,Outline
88,Security,eye-off,hide invisible password hidden,Lucide,import { EyeOff } from 'lucide-react',<EyeOff />,Hide password,Outline
89,Location,map-pin,location marker place address,Lucide,import { MapPin } from 'lucide-react',<MapPin />,Location pin marker,Outline
90,Location,map,directions navigate geography location,Lucide,import { Map } from 'lucide-react',<Map />,Map directions,Outline
91,Location,navigation,compass direction pointer arrow,Lucide,import { Navigation } from 'lucide-react',<Navigation />,Navigation compass,Outline
92,Location,globe,world international global web,Lucide,import { Globe } from 'lucide-react',<Globe />,Globe world,Outline
93,Time,calendar,date schedule event appointment,Lucide,import { Calendar } from 'lucide-react',<Calendar />,Calendar date,Outline
94,Time,refresh-cw,reload sync update refresh,Lucide,import { RefreshCw } from 'lucide-react',<RefreshCw />,Refresh reload,Outline
95,Time,rotate-ccw,undo back revert history,Lucide,import { RotateCcw } from 'lucide-react',<RotateCcw />,Undo revert,Outline
96,Time,rotate-cw,redo forward repeat history,Lucide,import { RotateCw } from 'lucide-react',<RotateCw />,Redo forward,Outline
97,Development,code,develop programming syntax html,Lucide,import { Code } from 'lucide-react',<Code />,Code development,Outline
98,Development,terminal,console cli command shell,Lucide,import { Terminal } from 'lucide-react',<Terminal />,Terminal console,Outline
99,Development,git-branch,version control branch merge,Lucide,import { GitBranch } from 'lucide-react',<GitBranch />,Git branch,Outline
100,Development,github,repository code open source,Lucide,import { Github } from 'lucide-react',<Github />,GitHub repository,Outline


path: assets/data/landing.csv
content: No,Pattern Name,Keywords,Section Order,Primary CTA Placement,Color Strategy,Recommended Effects,Conversion Optimization
1,Hero + Features + CTA,"hero, hero-centric, features, feature-rich, cta, call-to-action","1. Hero with headline/image, 2. Value prop, 3. Key features (3-5), 4. CTA section, 5. Footer",Hero (sticky) + Bottom,Hero: Brand primary or vibrant. Features: Card bg #FAFAFA. CTA: Contrasting accent color,"Hero parallax, feature card hover lift, CTA glow on hover",Deep CTA placement. Use contrasting color (at least 7:1 contrast ratio). Sticky navbar CTA.
2,Hero + Testimonials + CTA,"hero, testimonials, social-proof, trust, reviews, cta","1. Hero, 2. Problem statement, 3. Solution overview, 4. Testimonials carousel, 5. CTA",Hero (sticky) + Post-testimonials,"Hero: Brand color. Testimonials: Light bg #F5F5F5. Quotes: Italic, muted color #666. CTA: Vibrant","Testimonial carousel slide animations, quote marks animations, avatar fade-in",Social proof before CTA. Use 3-5 testimonials. Include photo + name + role. CTA after social proof.
3,Product Demo + Features,"demo, product-demo, features, showcase, interactive","1. Hero, 2. Product video/mockup (center), 3. Feature breakdown per section, 4. Comparison (optional), 5. CTA",Video center + CTA right/bottom,Video surround: Brand color overlay. Features: Icon color #0080FF. Text: Dark #222,"Video play button pulse, feature scroll reveals, demo interaction highlights",Embedded product demo increases engagement. Use interactive mockup if possible. Auto-play video muted.
4,Minimal Single Column,"minimal, simple, direct, single-column, clean","1. Hero headline, 2. Short description, 3. Benefit bullets (3 max), 4. CTA, 5. Footer","Center, large CTA button",Minimalist: Brand + white #FFFFFF + accent. Buttons: High contrast 7:1+. Text: Black/Dark grey,Minimal hover effects. Smooth scroll. CTA scale on hover (subtle),Single CTA focus. Large typography. Lots of whitespace. No nav clutter. Mobile-first.
5,Funnel (3-Step Conversion),"funnel, conversion, steps, wizard, onboarding","1. Hero, 2. Step 1 (problem), 3. Step 2 (solution), 4. Step 3 (action), 5. CTA progression",Each step: mini-CTA. Final: main CTA,"Step colors: 1 (Red/Problem), 2 (Orange/Process), 3 (Green/Solution). CTA: Brand color","Step number animations, progress bar fill, step transitions smooth scroll",Progressive disclosure. Show only essential info per step. Use progress indicators. Multiple CTAs.
6,Comparison Table + CTA,"comparison, table, compare, versus, cta","1. Hero, 2. Problem intro, 3. Comparison table (product vs competitors), 4. Pricing (optional), 5. CTA",Table: Right column. CTA: Below table,Table: Alternating rows (white/light grey). Your product: Highlight #FFFACD (light yellow) or green. Text: Dark,"Table row hover highlight, price toggle animations, feature checkmark animations",Use comparison to show unique value. Highlight your product row. Include 'free trial' in pricing row.
7,Lead Magnet + Form,"lead, form, signup, capture, email, magnet","1. Hero (benefit headline), 2. Lead magnet preview (ebook cover, checklist, etc), 3. Form (minimal fields), 4. CTA submit",Form CTA: Submit button,Lead magnet: Professional design. Form: Clean white bg. Inputs: Light border #CCCCCC. CTA: Brand color,"Form focus state animations, input validation animations, success confirmation animation",Form fields ≤ 3 for best conversion. Offer valuable lead magnet preview. Show form submission progress.
8,Pricing Page + CTA,"pricing, plans, tiers, comparison, cta","1. Hero (pricing headline), 2. Price comparison cards, 3. Feature comparison table, 4. FAQ section, 5. Final CTA",Each card: CTA button. Sticky CTA in nav,"Free: Grey, Starter: Blue, Pro: Green/Gold, Enterprise: Dark. Cards: 1px border, shadow","Price toggle animation (monthly/yearly), card comparison highlight, FAQ accordion open/close",Recommend starter plan (pre-select/highlight). Show annual discount (20-30%). Use FAQs to address concerns.
9,Video-First Hero,"video, hero, media, visual, engaging","1. Hero with video background, 2. Key features overlay, 3. Benefits section, 4. CTA",Overlay on video (center/bottom) + Bottom section,Dark overlay 60% on video. Brand accent for CTA. White text on dark.,"Video autoplay muted, parallax scroll, text fade-in on scroll",86% higher engagement with video. Add captions for accessibility. Compress video for performance.
10,Scroll-Triggered Storytelling,"storytelling, scroll, narrative, story, immersive","1. Intro hook, 2. Chapter 1 (problem), 3. Chapter 2 (journey), 4. Chapter 3 (solution), 5. Climax CTA",End of each chapter (mini) + Final climax CTA,Progressive reveal. Each chapter has distinct color. Building intensity.,"ScrollTrigger animations, parallax layers, progressive disclosure, chapter transitions",Narrative increases time-on-page 3x. Use progress indicator. Mobile: simplify animations.
11,AI Personalization Landing,"ai, personalization, smart, recommendation, dynamic","1. Dynamic hero (personalized), 2. Relevant features, 3. Tailored testimonials, 4. Smart CTA",Context-aware placement based on user segment,Adaptive based on user data. A/B test color variations per segment.,"Dynamic content swap, fade transitions, personalized product recommendations",20%+ conversion with personalization. Requires analytics integration. Fallback for new users.
12,Waitlist/Coming Soon,"waitlist, coming-soon, launch, early-access, notify","1. Hero with countdown, 2. Product teaser/preview, 3. Email capture form, 4. Social proof (waitlist count)",Email form prominent (above fold) + Sticky form on scroll,Anticipation: Dark + accent highlights. Countdown in brand color. Urgency indicators.,"Countdown timer animation, email validation feedback, success confetti, social share buttons",Scarcity + exclusivity. Show waitlist count. Early access benefits. Referral program.
13,Comparison Table Focus,"comparison, table, versus, compare, features","1. Hero (problem statement), 2. Comparison matrix (you vs competitors), 3. Feature deep-dive, 4. Winner CTA",After comparison table (highlighted row) + Bottom,Your product column highlighted (accent bg or green). Competitors neutral. Checkmarks green.,"Table row hover highlight, feature checkmark animations, sticky comparison header",Show value vs competitors. 35% higher conversion. Be factual. Include pricing if favorable.
14,Pricing-Focused Landing,"pricing, price, cost, plans, subscription","1. Hero (value proposition), 2. Pricing cards (3 tiers), 3. Feature comparison, 4. FAQ, 5. Final CTA",Each pricing card + Sticky CTA in nav + Bottom,Popular plan highlighted (brand color border/bg). Free: grey. Enterprise: dark/premium.,"Price toggle monthly/annual animation, card hover lift, FAQ accordion smooth open",Annual discount 20-30%. Recommend mid-tier (most popular badge). Address objections in FAQ.
15,App Store Style Landing,"app, mobile, download, store, install","1. Hero with device mockup, 2. Screenshots carousel, 3. Features with icons, 4. Reviews/ratings, 5. Download CTAs",Download buttons prominent (App Store + Play Store) throughout,Dark/light matching app store feel. Star ratings in gold. Screenshots with device frames.,"Device mockup rotations, screenshot slider, star rating animations, download button pulse",Show real screenshots. Include ratings (4.5+ stars). QR code for mobile. Platform-specific CTAs.
16,FAQ/Documentation Landing,"faq, documentation, help, support, questions","1. Hero with search bar, 2. Popular categories, 3. FAQ accordion, 4. Contact/support CTA",Search bar prominent + Contact CTA for unresolved questions,"Clean, high readability. Minimal color. Category icons in brand color. Success green for resolved.","Search autocomplete, smooth accordion open/close, category hover, helpful feedback buttons",Reduce support tickets. Track search analytics. Show related articles. Contact escalation path.
17,Immersive/Interactive Experience,"immersive, interactive, experience, 3d, animation","1. Full-screen interactive element, 2. Guided product tour, 3. Key benefits revealed, 4. CTA after completion",After interaction complete + Skip option for impatient users,Immersive experience colors. Dark background for focus. Highlight interactive elements.,"WebGL, 3D interactions, gamification elements, progress indicators, reward animations",40% higher engagement. Performance trade-off. Provide skip option. Mobile fallback essential.
18,Event/Conference Landing,"event, conference, meetup, registration, schedule","1. Hero (date/location/countdown), 2. Speakers grid, 3. Agenda/schedule, 4. Sponsors, 5. Register CTA",Register CTA sticky + After speakers + Bottom,Urgency colors (countdown). Event branding. Speaker cards professional. Sponsor logos neutral.,"Countdown timer, speaker hover cards with bio, agenda tabs, early bird countdown",Early bird pricing with deadline. Social proof (past attendees). Speaker credibility. Multi-ticket discounts.
19,Product Review/Ratings Focused,"reviews, ratings, testimonials, social-proof, stars","1. Hero (product + aggregate rating), 2. Rating breakdown, 3. Individual reviews, 4. Buy/CTA",After reviews summary + Buy button alongside reviews,Trust colors. Star ratings gold. Verified badge green. Review sentiment colors.,"Star fill animations, review filtering, helpful vote interactions, photo lightbox",User-generated content builds trust. Show verified purchases. Filter by rating. Respond to negative reviews.
20,Community/Forum Landing,"community, forum, social, members, discussion","1. Hero (community value prop), 2. Popular topics/categories, 3. Active members showcase, 4. Join CTA",Join button prominent + After member showcase,"Warm, welcoming. Member photos add humanity. Topic badges in brand colors. Activity indicators green.","Member avatars animation, activity feed live updates, topic hover previews, join success celebration","Show active community (member count, posts today). Highlight benefits. Preview content. Easy onboarding."
21,Before-After Transformation,"before-after, transformation, results, comparison","1. Hero (problem state), 2. Transformation slider/comparison, 3. How it works, 4. Results CTA",After transformation reveal + Bottom,Contrast: muted/grey (before) vs vibrant/colorful (after). Success green for results.,"Slider comparison interaction, before/after reveal animations, result counters, testimonial videos",Visual proof of value. 45% higher conversion. Real results. Specific metrics. Guarantee offer.
22,Marketplace / Directory,"marketplace, directory, search, listing","1. Hero (Search focused), 2. Categories, 3. Featured Listings, 4. Trust/Safety, 5. CTA (Become a host/seller)",Hero Search Bar + Navbar 'List your item',Search: High contrast. Categories: Visual icons. Trust: Blue/Green.,Search autocomplete animation," map hover pins,  card carousel, Search bar is the CTA. Reduce friction to search. Popular searches suggestions."
23,Newsletter / Content First,"newsletter, content, writer, blog, subscribe","1. Hero (Value Prop + Form), 2. Recent Issues/Archives, 3. Social Proof (Subscriber count), 4. About Author",Hero inline form + Sticky header form,Minimalist. Paper-like background. Text focus. Accent color for Subscribe.,Text highlight animations," typewriter effect,  subtle fade-in, Single field form (Email only). Show 'Join X, 000 readers'. Read sample link."
24,Webinar Registration,"webinar, registration, event, training, live","1. Hero (Topic + Timer + Form), 2. What you'll learn, 3. Speaker Bio, 4. Urgency/Bonuses, 5. Form (again)",Hero (Right side form) + Bottom anchor,Urgency: Red/Orange. Professional: Blue/Navy. Form: High contrast white.,Countdown timer," speaker avatar float,  urgent ticker, Limited seats logic. 'Live' indicator. Auto-fill timezone."
25,Enterprise Gateway,"enterprise, corporate, gateway, solutions, portal","1. Hero (Video/Mission), 2. Solutions by Industry, 3. Solutions by Role, 4. Client Logos, 5. Contact Sales",Contact Sales (Primary) + Login (Secondary),Corporate: Navy/Grey. High integrity. Conservative accents.,Slow video background," logo carousel,  tab switching for industries, Path selection (I am a...). Mega menu navigation. Trust signals prominent."
26,Portfolio Grid,"portfolio, grid, showcase, gallery, masonry","1. Hero (Name/Role), 2. Project Grid (Masonry), 3. About/Philosophy, 4. Contact",Project Card Hover + Footer Contact,Neutral background (let work shine). Text: Black/White. Accent: Minimal.,Image lazy load reveal," hover overlay info,  lightbox view, Visuals first. Filter by category. Fast loading essential."
27,Horizontal Scroll Journey,"horizontal, scroll, journey, gallery, storytelling, panoramic","1. Intro (Vertical), 2. The Journey (Horizontal Track), 3. Detail Reveal, 4. Vertical Footer",Floating Sticky CTA or End of Horizontal Track,Continuous palette transition. Chapter colors. Progress bar #000000.,"Scroll-jacking (careful), parallax layers, horizontal slide, progress indicator","Immersive product discovery. High engagement. Keep navigation visible.
28,Bento Grid Showcase,bento,  grid,  features,  modular,  apple-style,  showcase"", 1. Hero, 2. Bento Grid (Key Features), 3. Detail Cards, 4. Tech Specs, 5. CTA, Floating Action Button or Bottom of Grid, Card backgrounds: #F5F5F7 or Glass. Icons: Vibrant brand colors. Text: Dark., Hover card scale (1.02), video inside cards, tilt effect, staggered reveal, Scannable value props. High information density without clutter. Mobile stack.
29,Interactive 3D Configurator,3d,  configurator,  customizer,  interactive,  product"", 1. Hero (Configurator), 2. Feature Highlight (synced), 3. Price/Specs, 4. Purchase, Inside Configurator UI + Sticky Bottom Bar, Neutral studio background. Product: Realistic materials. UI: Minimal overlay., Real-time rendering, material swap animation, camera rotate/zoom, light reflection, Increases ownership feeling. 360 view reduces return rates. Direct add-to-cart.
30,AI-Driven Dynamic Landing,ai,  dynamic,  personalized,  adaptive,  generative"", 1. Prompt/Input Hero, 2. Generated Result Preview, 3. How it Works, 4. Value Prop, Input Field (Hero) + 'Try it' Buttons, Adaptive to user input. Dark mode for compute feel. Neon accents., Typing text effects, shimmering generation loaders, morphing layouts, Immediate value demonstration. 'Show, don't tell'. Low friction start."


path: assets/data/products.csv
content: No,Product Type,Keywords,Primary Style Recommendation,Secondary Styles,Landing Page Pattern,Dashboard Style (if applicable),Color Palette Focus,Key Considerations
1,SaaS (General),"app, b2b, cloud, general, saas, software, subscription",Glassmorphism + Flat Design,"Soft UI Evolution, Minimalism",Hero + Features + CTA,Data-Dense + Real-Time Monitoring,Trust blue + accent contrast,Balance modern feel with clarity. Focus on CTAs.
2,Micro SaaS,"app, b2b, cloud, indie, micro, micro-saas, niche, saas, small, software, solo, subscription",Flat Design + Vibrant & Block,"Motion-Driven, Micro-interactions",Minimal & Direct + Demo,Executive Dashboard,Vibrant primary + white space,"Keep simple, show product quickly. Speed is key."
3,E-commerce,"buy, commerce, e, ecommerce, products, retail, sell, shop, store",Vibrant & Block-based,"Aurora UI, Motion-Driven",Feature-Rich Showcase,Sales Intelligence Dashboard,Brand primary + success green,Engagement & conversions. High visual hierarchy.
4,E-commerce Luxury,"buy, commerce, e, ecommerce, elegant, exclusive, high-end, luxury, premium, products, retail, sell, shop, store",Liquid Glass + Glassmorphism,"3D & Hyperrealism, Aurora UI",Feature-Rich Showcase,Sales Intelligence Dashboard,Premium colors + minimal accent,Elegance & sophistication. Premium materials.
5,Service Landing Page,"appointment, booking, consultation, conversion, landing, marketing, page, service",Hero-Centric + Trust & Authority,"Social Proof-Focused, Storytelling",Hero-Centric Design,N/A - Analytics for conversions,Brand primary + trust colors,Social proof essential. Show expertise.
6,B2B Service,"appointment, b, b2b, booking, business, consultation, corporate, enterprise, service",Trust & Authority + Minimal,"Feature-Rich, Conversion-Optimized",Feature-Rich Showcase,Sales Intelligence Dashboard,Professional blue + neutral grey,Credibility essential. Clear ROI messaging.
7,Financial Dashboard,"admin, analytics, dashboard, data, financial, panel",Dark Mode (OLED) + Data-Dense,"Minimalism, Accessible & Ethical",N/A - Dashboard focused,Financial Dashboard,Dark bg + red/green alerts + trust blue,"High contrast, real-time updates, accuracy paramount."
8,Analytics Dashboard,"admin, analytics, dashboard, data, panel",Data-Dense + Heat Map & Heatmap,"Minimalism, Dark Mode (OLED)",N/A - Analytics focused,Drill-Down Analytics + Comparative,Cool→Hot gradients + neutral grey,Clarity > aesthetics. Color-coded data priority.
9,Healthcare App,"app, clinic, health, healthcare, medical, patient",Neumorphism + Accessible & Ethical,"Soft UI Evolution, Claymorphism (for patients)",Social Proof-Focused,User Behavior Analytics,Calm blue + health green + trust,Accessibility mandatory. Calming aesthetic.
10,Educational App,"app, course, education, educational, learning, school, training",Claymorphism + Micro-interactions,"Vibrant & Block-based, Flat Design",Storytelling-Driven,User Behavior Analytics,Playful colors + clear hierarchy,Engagement & ease of use. Age-appropriate design.
11,Creative Agency,"agency, creative, design, marketing, studio",Brutalism + Motion-Driven,"Retro-Futurism, Storytelling-Driven",Storytelling-Driven,N/A - Portfolio focused,Bold primaries + artistic freedom,Differentiation key. Wow-factor necessary.
12,Portfolio/Personal,"creative, personal, portfolio, projects, showcase, work",Motion-Driven + Minimalism,"Brutalism, Aurora UI",Storytelling-Driven,N/A - Personal branding,Brand primary + artistic interpretation,Showcase work. Personality shine through.
13,Gaming,"entertainment, esports, game, gaming, play",3D & Hyperrealism + Retro-Futurism,"Motion-Driven, Vibrant & Block",Feature-Rich Showcase,N/A - Game focused,Vibrant + neon + immersive colors,Immersion priority. Performance critical.
14,Government/Public Service,"appointment, booking, consultation, government, public, service",Accessible & Ethical + Minimalism,"Flat Design, Inclusive Design",Minimal & Direct,Executive Dashboard,Professional blue + high contrast,WCAG AAA mandatory. Trust paramount.
15,Fintech/Crypto,"banking, blockchain, crypto, defi, finance, fintech, money, nft, payment, web3",Glassmorphism + Dark Mode (OLED),"Retro-Futurism, Motion-Driven",Conversion-Optimized,Real-Time Monitoring + Predictive,Dark tech colors + trust + vibrant accents,Security perception. Real-time data critical.
16,Social Media App,"app, community, content, entertainment, media, network, sharing, social, streaming, users, video",Vibrant & Block-based + Motion-Driven,"Aurora UI, Micro-interactions",Feature-Rich Showcase,User Behavior Analytics,Vibrant + engagement colors,Engagement & retention. Addictive design ethics.
17,Productivity Tool,"collaboration, productivity, project, task, tool, workflow",Flat Design + Micro-interactions,"Minimalism, Soft UI Evolution",Interactive Product Demo,Drill-Down Analytics,Clear hierarchy + functional colors,Ease of use. Speed & efficiency focus.
18,Design System/Component Library,"component, design, library, system",Minimalism + Accessible & Ethical,"Flat Design, Zero Interface",Feature-Rich Showcase,N/A - Dev focused,Clear hierarchy + code-like structure,Consistency. Developer-first approach.
19,AI/Chatbot Platform,"ai, artificial-intelligence, automation, chatbot, machine-learning, ml, platform",AI-Native UI + Minimalism,"Zero Interface, Glassmorphism",Interactive Product Demo,AI/ML Analytics Dashboard,Neutral + AI Purple (#6366F1),Conversational UI. Streaming text. Context awareness. Minimal chrome.
20,NFT/Web3 Platform,"nft, platform, web",Cyberpunk UI + Glassmorphism,"Aurora UI, 3D & Hyperrealism",Feature-Rich Showcase,Crypto/Blockchain Dashboard,Dark + Neon + Gold (#FFD700),Wallet integration. Transaction feedback. Gas fees display. Dark mode essential.
21,Creator Economy Platform,"creator, economy, platform",Vibrant & Block-based + Bento Box Grid,"Motion-Driven, Aurora UI",Social Proof-Focused,User Behavior Analytics,Vibrant + Brand colors,Creator profiles. Monetization display. Engagement metrics. Social proof.
22,Sustainability/ESG Platform,"ai, artificial-intelligence, automation, esg, machine-learning, ml, platform, sustainability",Organic Biophilic + Minimalism,"Accessible & Ethical, Flat Design",Trust & Authority,Energy/Utilities Dashboard,Green (#228B22) + Earth tones,Carbon footprint visuals. Progress indicators. Certification badges. Eco-friendly imagery.
23,Remote Work/Collaboration Tool,"collaboration, remote, tool, work",Soft UI Evolution + Minimalism,"Glassmorphism, Micro-interactions",Feature-Rich Showcase,Drill-Down Analytics,Calm Blue + Neutral grey,Real-time collaboration. Status indicators. Video integration. Notification management.
24,Mental Health App,"app, health, mental",Neumorphism + Accessible & Ethical,"Claymorphism, Soft UI Evolution",Social Proof-Focused,Healthcare Analytics,Calm Pastels + Trust colors,Calming aesthetics. Privacy-first. Crisis resources. Progress tracking. Accessibility mandatory.
25,Pet Tech App,"app, pet, tech",Claymorphism + Vibrant & Block-based,"Micro-interactions, Flat Design",Storytelling-Driven,User Behavior Analytics,Playful + Warm colors,Pet profiles. Health tracking. Playful UI. Photo galleries. Vet integration.
26,Smart Home/IoT Dashboard,"admin, analytics, dashboard, data, home, iot, panel, smart",Glassmorphism + Dark Mode (OLED),"Minimalism, AI-Native UI",Interactive Product Demo,Real-Time Monitoring,Dark + Status indicator colors,Device status. Real-time controls. Energy monitoring. Automation rules. Quick actions.
27,EV/Charging Ecosystem,"charging, ecosystem, ev",Minimalism + Aurora UI,"Glassmorphism, Organic Biophilic",Hero-Centric Design,Energy/Utilities Dashboard,Electric Blue (#009CD1) + Green,Charging station maps. Range estimation. Cost calculation. Environmental impact.
28,Subscription Box Service,"appointment, booking, box, consultation, membership, plan, recurring, service, subscription",Vibrant & Block-based + Motion-Driven,"Claymorphism, Aurora UI",Feature-Rich Showcase,E-commerce Analytics,Brand + Excitement colors,Unboxing experience. Personalization quiz. Subscription management. Product reveals.
29,Podcast Platform,"platform, podcast",Dark Mode (OLED) + Minimalism,"Motion-Driven, Vibrant & Block-based",Storytelling-Driven,Media/Entertainment Dashboard,Dark + Audio waveform accents,Audio player UX. Episode discovery. Creator tools. Analytics for podcasters.
30,Dating App,"app, dating",Vibrant & Block-based + Motion-Driven,"Aurora UI, Glassmorphism",Social Proof-Focused,User Behavior Analytics,Warm + Romantic (Pink/Red gradients),Profile cards. Swipe interactions. Match animations. Safety features. Video chat.
31,Micro-Credentials/Badges Platform,"badges, credentials, micro, platform",Minimalism + Flat Design,"Accessible & Ethical, Swiss Modernism 2.0",Trust & Authority,Education Dashboard,Trust Blue + Gold (#FFD700),Credential verification. Badge display. Progress tracking. Issuer trust. LinkedIn integration.
32,Knowledge Base/Documentation,"base, documentation, knowledge",Minimalism + Accessible & Ethical,"Swiss Modernism 2.0, Flat Design",FAQ/Documentation,N/A - Documentation focused,Clean hierarchy + minimal color,Search-first. Clear navigation. Code highlighting. Version switching. Feedback system.
33,Hyperlocal Services,"appointment, booking, consultation, hyperlocal, service, services",Minimalism + Vibrant & Block-based,"Micro-interactions, Flat Design",Conversion-Optimized,Drill-Down Analytics + Map,Location markers + Trust colors,Map integration. Service categories. Provider profiles. Booking system. Reviews.
34,Beauty/Spa/Wellness Service,"appointment, beauty, booking, consultation, service, spa, wellness",Soft UI Evolution + Neumorphism,"Glassmorphism, Minimalism",Hero-Centric Design + Social Proof,User Behavior Analytics,Soft pastels (Pink #FFB6C1 Sage #90EE90) + Cream + Gold accents,Calming aesthetic. Booking system. Service menu. Before/after gallery. Testimonials. Relaxing imagery.
35,Luxury/Premium Brand,"brand, elegant, exclusive, high-end, luxury, premium",Liquid Glass + Glassmorphism,"Minimalism, 3D & Hyperrealism",Storytelling-Driven + Feature-Rich,Sales Intelligence Dashboard,Black + Gold (#FFD700) + White + Minimal accent,Elegance paramount. Premium imagery. Storytelling. High-quality visuals. Exclusive feel.
36,Restaurant/Food Service,"appointment, booking, consultation, delivery, food, menu, order, restaurant, service",Vibrant & Block-based + Motion-Driven,"Claymorphism, Flat Design",Hero-Centric Design + Conversion,N/A - Booking focused,Warm colors (Orange Red Brown) + appetizing imagery,Menu display. Online ordering. Reservation system. Food photography. Location/hours prominent.
37,Fitness/Gym App,"app, exercise, fitness, gym, health, workout",Vibrant & Block-based + Dark Mode (OLED),"Motion-Driven, Neumorphism",Feature-Rich Showcase,User Behavior Analytics,Energetic (Orange #FF6B35 Electric Blue) + Dark bg,Progress tracking. Workout plans. Community features. Achievements. Motivational design.
38,Real Estate/Property,"buy, estate, housing, property, real, real-estate, rent",Glassmorphism + Minimalism,"Motion-Driven, 3D & Hyperrealism",Hero-Centric Design + Feature-Rich,Sales Intelligence Dashboard,Trust Blue (#0077B6) + Gold accents + White,Property listings. Virtual tours. Map integration. Agent profiles. Mortgage calculator. High-quality imagery.
39,Travel/Tourism Agency,"agency, booking, creative, design, flight, hotel, marketing, studio, tourism, travel, vacation",Aurora UI + Motion-Driven,"Vibrant & Block-based, Glassmorphism",Storytelling-Driven + Hero-Centric,Booking Analytics,Vibrant destination colors + Sky Blue + Warm accents,Destination showcase. Booking system. Itinerary builder. Reviews. Inspiration galleries. Mobile-first.
40,Hotel/Hospitality,"hospitality, hotel",Liquid Glass + Minimalism,"Glassmorphism, Soft UI Evolution",Hero-Centric Design + Social Proof,Revenue Management Dashboard,Warm neutrals + Gold (#D4AF37) + Brand accent,Room booking. Amenities showcase. Location maps. Guest reviews. Seasonal pricing. Luxury imagery.
41,Wedding/Event Planning,"conference, event, meetup, planning, registration, ticket, wedding",Soft UI Evolution + Aurora UI,"Glassmorphism, Motion-Driven",Storytelling-Driven + Social Proof,N/A - Planning focused,Soft Pink (#FFD6E0) + Gold + Cream + Sage,Portfolio gallery. Vendor directory. Planning tools. Timeline. Budget tracker. Romantic aesthetic.
42,Legal Services,"appointment, attorney, booking, compliance, consultation, contract, law, legal, service, services",Trust & Authority + Minimalism,"Accessible & Ethical, Swiss Modernism 2.0",Trust & Authority + Minimal,Case Management Dashboard,Navy Blue (#1E3A5F) + Gold + White,Credibility paramount. Practice areas. Attorney profiles. Case results. Contact forms. Professional imagery.
43,Insurance Platform,"insurance, platform",Trust & Authority + Flat Design,"Accessible & Ethical, Minimalism",Conversion-Optimized + Trust,Claims Analytics Dashboard,Trust Blue (#0066CC) + Green (security) + Neutral,Quote calculator. Policy comparison. Claims process. Trust signals. Clear pricing. Security badges.
44,Banking/Traditional Finance,"banking, finance, traditional",Minimalism + Accessible & Ethical,"Trust & Authority, Dark Mode (OLED)",Trust & Authority + Feature-Rich,Financial Dashboard,Navy (#0A1628) + Trust Blue + Gold accents,Security-first. Account overview. Transaction history. Mobile banking. Accessibility critical. Trust paramount.
45,Online Course/E-learning,"course, e, learning, online",Claymorphism + Vibrant & Block-based,"Motion-Driven, Flat Design",Feature-Rich Showcase + Social Proof,Education Dashboard,Vibrant learning colors + Progress green,Course catalog. Progress tracking. Video player. Quizzes. Certificates. Community forums. Gamification.
46,Non-profit/Charity,"charity, non, profit",Accessible & Ethical + Organic Biophilic,"Minimalism, Storytelling-Driven",Storytelling-Driven + Trust,Donation Analytics Dashboard,Cause-related colors + Trust + Warm,Impact stories. Donation flow. Transparency reports. Volunteer signup. Event calendar. Emotional connection.
47,Music Streaming,"music, streaming",Dark Mode (OLED) + Vibrant & Block-based,"Motion-Driven, Aurora UI",Feature-Rich Showcase,Media/Entertainment Dashboard,Dark (#121212) + Vibrant accents + Album art colors,Audio player. Playlist management. Artist pages. Personalization. Social features. Waveform visualizations.
48,Video Streaming/OTT,"ott, streaming, video",Dark Mode (OLED) + Motion-Driven,"Glassmorphism, Vibrant & Block-based",Hero-Centric Design + Feature-Rich,Media/Entertainment Dashboard,Dark bg + Content poster colors + Brand accent,Video player. Content discovery. Watchlist. Continue watching. Personalized recommendations. Thumbnail-heavy.
49,Job Board/Recruitment,"board, job, recruitment",Flat Design + Minimalism,"Vibrant & Block-based, Accessible & Ethical",Conversion-Optimized + Feature-Rich,HR Analytics Dashboard,Professional Blue + Success Green + Neutral,Job listings. Search/filter. Company profiles. Application tracking. Resume upload. Salary insights.
50,Marketplace (P2P),"buyers, listings, marketplace, p, platform, sellers",Vibrant & Block-based + Flat Design,"Micro-interactions, Trust & Authority",Feature-Rich Showcase + Social Proof,E-commerce Analytics,Trust colors + Category colors + Success green,Seller/buyer profiles. Listings. Reviews/ratings. Secure payment. Messaging. Search/filter. Trust badges.
51,Logistics/Delivery,"delivery, logistics",Minimalism + Flat Design,"Dark Mode (OLED), Micro-interactions",Feature-Rich Showcase + Conversion,Real-Time Monitoring + Route Analytics,Blue (#2563EB) + Orange (tracking) + Green (delivered),Real-time tracking. Delivery scheduling. Route optimization. Driver management. Status updates. Map integration.
52,Agriculture/Farm Tech,"agriculture, farm, tech",Organic Biophilic + Flat Design,"Minimalism, Accessible & Ethical",Feature-Rich Showcase + Trust,IoT Sensor Dashboard,Earth Green (#4A7C23) + Brown + Sky Blue,Crop monitoring. Weather data. IoT sensors. Yield tracking. Market prices. Sustainable imagery.
53,Construction/Architecture,"architecture, construction",Minimalism + 3D & Hyperrealism,"Brutalism, Swiss Modernism 2.0",Hero-Centric Design + Feature-Rich,Project Management Dashboard,Grey (#4A4A4A) + Orange (safety) + Blueprint Blue,Project portfolio. 3D renders. Timeline. Material specs. Team collaboration. Blueprint aesthetic.
54,Automotive/Car Dealership,"automotive, car, dealership",Motion-Driven + 3D & Hyperrealism,"Dark Mode (OLED), Glassmorphism",Hero-Centric Design + Feature-Rich,Sales Intelligence Dashboard,Brand colors + Metallic accents + Dark/Light,Vehicle showcase. 360° views. Comparison tools. Financing calculator. Test drive booking. High-quality imagery.
55,Photography Studio,"photography, studio",Motion-Driven + Minimalism,"Aurora UI, Glassmorphism",Storytelling-Driven + Hero-Centric,N/A - Portfolio focused,Black + White + Minimal accent,Portfolio gallery. Before/after. Service packages. Booking system. Client galleries. Full-bleed imagery.
56,Coworking Space,"coworking, space",Vibrant & Block-based + Glassmorphism,"Minimalism, Motion-Driven",Hero-Centric Design + Feature-Rich,Occupancy Dashboard,Energetic colors + Wood tones + Brand accent,Space tour. Membership plans. Booking system. Amenities. Community events. Virtual tour.
57,Cleaning Service,"appointment, booking, cleaning, consultation, service",Soft UI Evolution + Flat Design,"Minimalism, Micro-interactions",Conversion-Optimized + Trust,Service Analytics,Fresh Blue (#00B4D8) + Clean White + Green,Service packages. Booking system. Price calculator. Before/after gallery. Reviews. Trust badges.
58,Home Services (Plumber/Electrician),"appointment, booking, consultation, electrician, home, plumber, service, services",Flat Design + Trust & Authority,"Minimalism, Accessible & Ethical",Conversion-Optimized + Trust,Service Analytics,Trust Blue + Safety Orange + Professional grey,Service list. Emergency contact. Booking. Price transparency. Certifications. Local trust signals.
59,Childcare/Daycare,"childcare, daycare",Claymorphism + Vibrant & Block-based,"Soft UI Evolution, Accessible & Ethical",Social Proof-Focused + Trust,Parent Dashboard,Playful pastels + Safe colors + Warm accents,Programs. Staff profiles. Safety certifications. Parent portal. Activity updates. Cheerful imagery.
60,Senior Care/Elderly,"care, elderly, senior",Accessible & Ethical + Soft UI Evolution,"Minimalism, Neumorphism",Trust & Authority + Social Proof,Healthcare Analytics,Calm Blue + Warm neutrals + Large text,Care services. Staff qualifications. Facility tour. Family portal. Large touch targets. High contrast. Accessibility-first.
61,Medical Clinic,"clinic, medical",Accessible & Ethical + Minimalism,"Neumorphism, Trust & Authority",Trust & Authority + Conversion,Healthcare Analytics,Medical Blue (#0077B6) + Trust White + Calm Green,Services. Doctor profiles. Online booking. Patient portal. Insurance info. HIPAA compliant. Trust signals.
62,Pharmacy/Drug Store,"drug, pharmacy, store",Flat Design + Accessible & Ethical,"Minimalism, Trust & Authority",Conversion-Optimized + Trust,Inventory Dashboard,Pharmacy Green + Trust Blue + Clean White,Product catalog. Prescription upload. Refill reminders. Health info. Store locator. Safety certifications.
63,Dental Practice,"dental, practice",Soft UI Evolution + Minimalism,"Accessible & Ethical, Trust & Authority",Social Proof-Focused + Conversion,Patient Analytics,Fresh Blue + White + Smile Yellow accent,Services. Dentist profiles. Before/after. Online booking. Insurance. Patient testimonials. Friendly imagery.
64,Veterinary Clinic,"clinic, veterinary",Claymorphism + Accessible & Ethical,"Soft UI Evolution, Flat Design",Social Proof-Focused + Trust,Pet Health Dashboard,Caring Blue + Pet-friendly colors + Warm accents,Pet services. Vet profiles. Online booking. Pet portal. Emergency info. Friendly animal imagery.
65,Florist/Plant Shop,"florist, plant, shop",Organic Biophilic + Vibrant & Block-based,"Aurora UI, Motion-Driven",Hero-Centric Design + Conversion,E-commerce Analytics,Natural Green + Floral pinks/purples + Earth tones,Product catalog. Occasion categories. Delivery scheduling. Care guides. Seasonal collections. Beautiful imagery.
66,Bakery/Cafe,"bakery, cafe",Vibrant & Block-based + Soft UI Evolution,"Claymorphism, Motion-Driven",Hero-Centric Design + Conversion,N/A - Order focused,Warm Brown + Cream + Appetizing accents,Menu display. Online ordering. Location/hours. Catering. Seasonal specials. Appetizing photography.
67,Coffee Shop,"coffee, shop",Minimalism + Organic Biophilic,"Soft UI Evolution, Flat Design",Hero-Centric Design + Conversion,N/A - Order focused,Coffee Brown (#6F4E37) + Cream + Warm accents,Menu. Online ordering. Loyalty program. Location. Story/origin. Cozy aesthetic.
68,Brewery/Winery,"brewery, winery",Motion-Driven + Storytelling-Driven,"Dark Mode (OLED), Organic Biophilic",Storytelling-Driven + Hero-Centric,N/A - E-commerce focused,Deep amber/burgundy + Gold + Craft aesthetic,Product showcase. Story/heritage. Tasting notes. Events. Club membership. Artisanal imagery.
69,Airline,"ai, airline, artificial-intelligence, automation, machine-learning, ml",Minimalism + Glassmorphism,"Motion-Driven, Accessible & Ethical",Conversion-Optimized + Feature-Rich,Operations Dashboard,Sky Blue + Brand colors + Trust accents,Flight search. Booking. Check-in. Boarding pass. Loyalty program. Route maps. Mobile-first.
70,News/Media Platform,"content, entertainment, media, news, platform, streaming, video",Minimalism + Flat Design,"Dark Mode (OLED), Accessible & Ethical",Hero-Centric Design + Feature-Rich,Media Analytics Dashboard,Brand colors + High contrast + Category colors,Article layout. Breaking news. Categories. Search. Subscription. Mobile reading. Fast loading.
71,Magazine/Blog,"articles, blog, content, magazine, posts, writing",Swiss Modernism 2.0 + Motion-Driven,"Minimalism, Aurora UI",Storytelling-Driven + Hero-Centric,Content Analytics,Editorial colors + Brand primary + Clean white,Article showcase. Category navigation. Author profiles. Newsletter signup. Related content. Typography-focused.
72,Freelancer Platform,"freelancer, platform",Flat Design + Minimalism,"Vibrant & Block-based, Micro-interactions",Feature-Rich Showcase + Conversion,Marketplace Analytics,Professional Blue + Success Green + Neutral,Profile creation. Portfolio. Skill matching. Messaging. Payment. Reviews. Project management.
73,Consulting Firm,"consulting, firm",Trust & Authority + Minimalism,"Swiss Modernism 2.0, Accessible & Ethical",Trust & Authority + Feature-Rich,N/A - Lead generation,Navy + Gold + Professional grey,Service areas. Case studies. Team profiles. Thought leadership. Contact. Professional credibility.
74,Marketing Agency,"agency, creative, design, marketing, studio",Brutalism + Motion-Driven,"Vibrant & Block-based, Aurora UI",Storytelling-Driven + Feature-Rich,Campaign Analytics,Bold brand colors + Creative freedom,Portfolio. Case studies. Services. Team. Creative showcase. Results-focused. Bold aesthetic.
75,Event Management,"conference, event, management, meetup, registration, ticket",Vibrant & Block-based + Motion-Driven,"Glassmorphism, Aurora UI",Hero-Centric Design + Feature-Rich,Event Analytics,Event theme colors + Excitement accents,Event showcase. Registration. Agenda. Speakers. Sponsors. Ticket sales. Countdown timer.
76,Conference/Webinar Platform,"conference, platform, webinar",Glassmorphism + Minimalism,"Motion-Driven, Flat Design",Feature-Rich Showcase + Conversion,Attendee Analytics,Professional Blue + Video accent + Brand,Registration. Agenda. Speaker profiles. Live stream. Networking. Recording access. Virtual event features.
77,Membership/Community,"community, membership",Vibrant & Block-based + Soft UI Evolution,"Bento Box Grid, Micro-interactions",Social Proof-Focused + Conversion,Community Analytics,Community brand colors + Engagement accents,Member benefits. Pricing tiers. Community showcase. Events. Member directory. Exclusive content.
78,Newsletter Platform,"newsletter, platform",Minimalism + Flat Design,"Swiss Modernism 2.0, Accessible & Ethical",Minimal & Direct + Conversion,Email Analytics,Brand primary + Clean white + CTA accent,Subscribe form. Archive. About. Social proof. Sample content. Simple conversion.
79,Digital Products/Downloads,"digital, downloads, products",Vibrant & Block-based + Motion-Driven,"Glassmorphism, Bento Box Grid",Feature-Rich Showcase + Conversion,E-commerce Analytics,Product category colors + Brand + Success green,Product showcase. Preview. Pricing. Instant delivery. License management. Customer reviews.
80,Church/Religious Organization,"church, organization, religious",Accessible & Ethical + Soft UI Evolution,"Minimalism, Trust & Authority",Hero-Centric Design + Social Proof,N/A - Community focused,Warm Gold + Deep Purple/Blue + White,Service times. Events. Sermons. Community. Giving. Location. Welcoming imagery.
81,Sports Team/Club,"club, sports, team",Vibrant & Block-based + Motion-Driven,"Dark Mode (OLED), 3D & Hyperrealism",Hero-Centric Design + Feature-Rich,Performance Analytics,Team colors + Energetic accents,Schedule. Roster. News. Tickets. Merchandise. Fan engagement. Action imagery.
82,Museum/Gallery,"gallery, museum",Minimalism + Motion-Driven,"Swiss Modernism 2.0, 3D & Hyperrealism",Storytelling-Driven + Feature-Rich,Visitor Analytics,Art-appropriate neutrals + Exhibition accents,Exhibitions. Collections. Tickets. Events. Virtual tours. Educational content. Art-focused design.
83,Theater/Cinema,"cinema, theater",Dark Mode (OLED) + Motion-Driven,"Vibrant & Block-based, Glassmorphism",Hero-Centric Design + Conversion,Booking Analytics,Dark + Spotlight accents + Gold,Showtimes. Seat selection. Trailers. Coming soon. Membership. Dramatic imagery.
84,Language Learning App,"app, language, learning",Claymorphism + Vibrant & Block-based,"Micro-interactions, Flat Design",Feature-Rich Showcase + Social Proof,Learning Analytics,Playful colors + Progress indicators + Country flags,Lesson structure. Progress tracking. Gamification. Speaking practice. Community. Achievement badges.
85,Coding Bootcamp,"bootcamp, coding",Dark Mode (OLED) + Minimalism,"Cyberpunk UI, Flat Design",Feature-Rich Showcase + Social Proof,Student Analytics,Code editor colors + Brand + Success green,Curriculum. Projects. Career outcomes. Alumni. Pricing. Application. Terminal aesthetic.
86,Cybersecurity Platform,"cyber, security, platform",Cyberpunk UI + Dark Mode (OLED),"Neubrutalism, Minimal & Direct",Trust & Authority + Real-Time,Real-Time Monitoring + Heat Map,Matrix Green + Deep Black + Terminal feel,Data density. Threat visualization. Dark mode default.
87,Developer Tool / IDE,"dev, developer, tool, ide",Dark Mode (OLED) + Minimalism,"Flat Design, Bento Box Grid",Minimal & Direct + Documentation,Real-Time Monitor + Terminal,Dark syntax theme colors + Blue focus,Keyboard shortcuts. Syntax highlighting. Fast performance.
88,Biotech / Life Sciences,"biotech, biology, science",Glassmorphism + Clean Science,"Minimalism, Organic Biophilic",Storytelling-Driven + Research,Data-Dense + Predictive,Sterile White + DNA Blue + Life Green,Data accuracy. Cleanliness. Complex data viz.
89,Space Tech / Aerospace,"aerospace, space, tech",Holographic / HUD + Dark Mode,"Glassmorphism, 3D & Hyperrealism",Immersive Experience + Hero,Real-Time Monitoring + 3D,Deep Space Black + Star White + Metallic,High-tech feel. Precision. Telemetry data.
90,Architecture / Interior,"architecture, design, interior",Exaggerated Minimalism + High Imagery,"Swiss Modernism 2.0, Parallax",Portfolio Grid + Visuals,Project Management + Gallery,Monochrome + Gold Accent + High Imagery,High-res images. Typography. Space.
91,Quantum Computing Interface,"quantum, computing, physics, qubit, future, science",Holographic / HUD + Dark Mode,"Glassmorphism, Spatial UI",Immersive/Interactive Experience,3D Spatial Data + Real-Time Monitor,Quantum Blue #00FFFF + Deep Black + Interference patterns,Visualize complexity. Qubit states. Probability clouds. High-tech trust.
92,Biohacking / Longevity App,"biohacking, health, longevity, tracking, wellness, science",Biomimetic / Organic 2.0,"Minimalism, Dark Mode (OLED)",Data-Dense + Storytelling,Real-Time Monitor + Biological Data,Cellular Pink/Red + DNA Blue + Clean White,Personal data privacy. Scientific credibility. Biological visualizations.
93,Autonomous Drone Fleet Manager,"drone, autonomous, fleet, aerial, logistics, robotics",HUD / Sci-Fi FUI,"Real-Time Monitor, Spatial UI",Real-Time Monitor,Geographic + Real-Time,Tactical Green #00FF00 + Alert Red + Map Dark,Real-time telemetry. 3D spatial awareness. Latency indicators. Safety alerts.
94,Generative Art Platform,"art, generative, ai, creative, platform, gallery",Minimalism (Frame) + Gen Z Chaos,"Masonry Grid, Dark Mode",Bento Grid Showcase,Gallery / Portfolio,Neutral #F5F5F5 (Canvas) + User Content,Content is king. Fast loading. Creator attribution. Minting flow.
95,Spatial Computing OS / App,"spatial, vr, ar, vision, os, immersive, mixed-reality",Spatial UI (VisionOS),"Glassmorphism, 3D & Hyperrealism",Immersive/Interactive Experience,Spatial Dashboard,Frosted Glass + System Colors + Depth,Gaze/Pinch interaction. Depth hierarchy. Environment awareness.
96,Sustainable Energy / Climate Tech,"climate, energy, sustainable, green, tech, carbon",Organic Biophilic + E-Ink / Paper,"Data-Dense, Swiss Modernism",Interactive Demo + Data,Energy/Utilities Dashboard,Earth Green + Sky Blue + Solar Yellow,Data transparency. Impact visualization. Low-carbon web design.

path: assets/data/react-performance.csv
content: No,Category,Issue,Keywords,Platform,Description,Do,Don't,Code Example Good,Code Example Bad,Severity
1,Async Waterfall,Defer Await,async await defer branch,React/Next.js,Move await into branches where actually used to avoid blocking unused code paths,Move await operations into branches where they're needed,Await at top of function blocking all branches,"if (skip) return { skipped: true }; const data = await fetch()","const data = await fetch(); if (skip) return { skipped: true }",Critical
2,Async Waterfall,Promise.all Parallel,promise all parallel concurrent,React/Next.js,Execute independent async operations concurrently using Promise.all(),Use Promise.all() for independent operations,Sequential await for independent operations,"const [user, posts] = await Promise.all([fetchUser(), fetchPosts()])","const user = await fetchUser(); const posts = await fetchPosts()",Critical
3,Async Waterfall,Dependency Parallelization,better-all dependency parallel,React/Next.js,Use better-all for operations with partial dependencies to maximize parallelism,Use better-all to start each task at earliest possible moment,Wait for unrelated data before starting dependent fetch,"await all({ user() {}, config() {}, profile() { return fetch((await this.$.user).id) } })","const [user, config] = await Promise.all([...]); const profile = await fetchProfile(user.id)",Critical
4,Async Waterfall,API Route Optimization,api route waterfall promise,React/Next.js,In API routes start independent operations immediately even if not awaited yet,Start promises early and await late,Sequential awaits in API handlers,"const sessionP = auth(); const configP = fetchConfig(); const session = await sessionP","const session = await auth(); const config = await fetchConfig()",Critical
5,Async Waterfall,Suspense Boundaries,suspense streaming boundary,React/Next.js,Use Suspense to show wrapper UI faster while data loads,Wrap async components in Suspense boundaries,Await data blocking entire page render,"<Suspense fallback={<Skeleton />}><DataDisplay /></Suspense>","const data = await fetchData(); return <DataDisplay data={data} />",High
6,Bundle Size,Barrel Imports,barrel import direct path,React/Next.js,Import directly from source files instead of barrel files to avoid loading unused modules,Import directly from source path,Import from barrel/index files,"import Check from 'lucide-react/dist/esm/icons/check'","import { Check } from 'lucide-react'",Critical
7,Bundle Size,Dynamic Imports,dynamic import lazy next,React/Next.js,Use next/dynamic to lazy-load large components not needed on initial render,Use dynamic() for heavy components,Import heavy components at top level,"const Monaco = dynamic(() => import('./monaco'), { ssr: false })","import { MonacoEditor } from './monaco-editor'",Critical
8,Bundle Size,Defer Third Party,analytics defer third-party,React/Next.js,Load analytics and logging after hydration since they don't block interaction,Load non-critical scripts after hydration,Include analytics in main bundle,"const Analytics = dynamic(() => import('@vercel/analytics'), { ssr: false })","import { Analytics } from '@vercel/analytics/react'",Medium
9,Bundle Size,Conditional Loading,conditional module lazy,React/Next.js,Load large data or modules only when a feature is activated,Dynamic import when feature enabled,Import large modules unconditionally,"useEffect(() => { if (enabled) import('./heavy.js') }, [enabled])","import { heavyData } from './heavy.js'",High
10,Bundle Size,Preload Intent,preload hover focus intent,React/Next.js,Preload heavy bundles on hover/focus before they're needed,Preload on user intent signals,Load only on click,"onMouseEnter={() => import('./editor')}","onClick={() => import('./editor')}",Medium
11,Server,React.cache Dedup,react cache deduplicate request,React/Next.js,Use React.cache() for server-side request deduplication within single request,Wrap data fetchers with cache(),Fetch same data multiple times in tree,"export const getUser = cache(async () => await db.user.find())","export async function getUser() { return await db.user.find() }",Medium
12,Server,LRU Cache Cross-Request,lru cache cross request,React/Next.js,Use LRU cache for data shared across sequential requests,Use LRU for cross-request caching,Refetch same data on every request,"const cache = new LRUCache({ max: 1000, ttl: 5*60*1000 })","Always fetch from database",High
13,Server,Minimize Serialization,serialization rsc boundary,React/Next.js,Only pass fields that client actually uses across RSC boundaries,Pass only needed fields to client components,Pass entire objects to client,"<Profile name={user.name} />","<Profile user={user} /> // 50 fields serialized",High
14,Server,Parallel Fetching,parallel fetch component composition,React/Next.js,Restructure components to parallelize data fetching in RSC,Use component composition for parallel fetches,Sequential fetches in parent component,"<Header /><Sidebar /> // both fetch in parallel","const header = await fetchHeader(); return <><div>{header}</div><Sidebar /></>",Critical
15,Server,After Non-blocking,after non-blocking logging,React/Next.js,Use Next.js after() to schedule work after response is sent,Use after() for logging/analytics,Block response for non-critical operations,"after(async () => { await logAction() }); return Response.json(data)","await logAction(); return Response.json(data)",Medium
16,Client,SWR Deduplication,swr dedup cache revalidate,React/Next.js,Use SWR for automatic request deduplication and caching,Use useSWR for client data fetching,Manual fetch in useEffect,"const { data } = useSWR('/api/users', fetcher)","useEffect(() => { fetch('/api/users').then(setUsers) }, [])",Medium-High
17,Client,Event Listener Dedup,event listener deduplicate global,React/Next.js,Share global event listeners across component instances,Use useSWRSubscription for shared listeners,Register listener per component instance,"useSWRSubscription('global-keydown', () => { window.addEventListener... })","useEffect(() => { window.addEventListener('keydown', handler) }, [])",Low
18,Rerender,Defer State Reads,state read callback subscription,React/Next.js,Don't subscribe to state only used in callbacks,Read state on-demand in callbacks,Subscribe to state used only in handlers,"const handleClick = () => { const params = new URLSearchParams(location.search) }","const params = useSearchParams(); const handleClick = () => { params.get('ref') }",Medium
19,Rerender,Memoized Components,memo extract expensive,React/Next.js,Extract expensive work into memoized components for early returns,Extract to memo() components,Compute expensive values before early return,"const UserAvatar = memo(({ user }) => ...); if (loading) return <Skeleton />","const avatar = useMemo(() => compute(user)); if (loading) return <Skeleton />",Medium
20,Rerender,Narrow Dependencies,effect dependency primitive,React/Next.js,Specify primitive dependencies instead of objects in effects,Use primitive values in dependency arrays,Use object references as dependencies,"useEffect(() => { console.log(user.id) }, [user.id])","useEffect(() => { console.log(user.id) }, [user])",Low
21,Rerender,Derived State,derived boolean subscription,React/Next.js,Subscribe to derived booleans instead of continuous values,Use derived boolean state,Subscribe to continuous values,"const isMobile = useMediaQuery('(max-width: 767px)')","const width = useWindowWidth(); const isMobile = width < 768",Medium
22,Rerender,Functional setState,functional setstate callback,React/Next.js,Use functional setState updates for stable callbacks and no stale closures,Use functional form: setState(curr => ...),Reference state directly in setState,"setItems(curr => [...curr, newItem])","setItems([...items, newItem]) // items in deps",Medium
23,Rerender,Lazy State Init,usestate lazy initialization,React/Next.js,Pass function to useState for expensive initial values,Use function form for expensive init,Compute expensive value directly,"useState(() => buildSearchIndex(items))","useState(buildSearchIndex(items)) // runs every render",Medium
24,Rerender,Transitions,starttransition non-urgent,React/Next.js,Mark frequent non-urgent state updates as transitions,Use startTransition for non-urgent updates,Block UI on every state change,"startTransition(() => setScrollY(window.scrollY))","setScrollY(window.scrollY) // blocks on every scroll",Medium
25,Rendering,SVG Animation Wrapper,svg animation wrapper div,React/Next.js,Wrap SVG in div and animate wrapper for hardware acceleration,Animate div wrapper around SVG,Animate SVG element directly,"<div class='animate-spin'><svg>...</svg></div>","<svg class='animate-spin'>...</svg>",Low
26,Rendering,Content Visibility,content-visibility auto,React/Next.js,Apply content-visibility: auto to defer off-screen rendering,Use content-visibility for long lists,Render all list items immediately,".item { content-visibility: auto; contain-intrinsic-size: 0 80px }","Render 1000 items without optimization",High
27,Rendering,Hoist Static JSX,hoist static jsx element,React/Next.js,Extract static JSX outside components to avoid re-creation,Hoist static elements to module scope,Create static elements inside components,"const skeleton = <div class='animate-pulse' />; function C() { return skeleton }","function C() { return <div class='animate-pulse' /> }",Low
28,Rendering,Hydration No Flicker,hydration mismatch flicker,React/Next.js,Use inline script to set client-only data before hydration,Inject sync script for client-only values,Use useEffect causing flash,"<script dangerouslySetInnerHTML={{ __html: 'el.className = localStorage.theme' }} />","useEffect(() => setTheme(localStorage.theme), []) // flickers",Medium
29,Rendering,Conditional Render,conditional render ternary,React/Next.js,Use ternary instead of && when condition can be 0 or NaN,Use explicit ternary for conditionals,Use && with potentially falsy numbers,"{count > 0 ? <Badge>{count}</Badge> : null}","{count && <Badge>{count}</Badge>} // renders '0'",Low
30,Rendering,Activity Component,activity show hide preserve,React/Next.js,Use Activity component to preserve state/DOM for toggled components,Use Activity for expensive toggle components,Unmount/remount on visibility toggle,"<Activity mode={isOpen ? 'visible' : 'hidden'}><Menu /></Activity>","{isOpen && <Menu />} // loses state",Medium
31,JS Perf,Batch DOM CSS,batch dom css reflow,React/Next.js,Group CSS changes via classes or cssText to minimize reflows,Use class toggle or cssText,Change styles one property at a time,"element.classList.add('highlighted')","el.style.width='100px'; el.style.height='200px'",Medium
32,JS Perf,Index Map Lookup,map index lookup find,React/Next.js,Build Map for repeated lookups instead of multiple .find() calls,Build index Map for O(1) lookups,Use .find() in loops,"const byId = new Map(users.map(u => [u.id, u])); byId.get(id)","users.find(u => u.id === order.userId) // O(n) each time",Low-Medium
33,JS Perf,Cache Property Access,cache property loop,React/Next.js,Cache object property lookups in hot paths,Cache values before loops,Access nested properties in loops,"const val = obj.config.settings.value; for (...) process(val)","for (...) process(obj.config.settings.value)",Low-Medium
34,JS Perf,Cache Function Results,memoize cache function,React/Next.js,Use module-level Map to cache repeated function results,Use Map cache for repeated calls,Recompute same values repeatedly,"const cache = new Map(); if (cache.has(x)) return cache.get(x)","slugify(name) // called 100 times same input",Medium
35,JS Perf,Cache Storage API,localstorage cache read,React/Next.js,Cache localStorage/sessionStorage reads in memory,Cache storage reads in Map,Read storage on every call,"if (!cache.has(key)) cache.set(key, localStorage.getItem(key))","localStorage.getItem('theme') // every call",Low-Medium
36,JS Perf,Combine Iterations,combine filter map loop,React/Next.js,Combine multiple filter/map into single loop,Single loop for multiple categorizations,Chain multiple filter() calls,"for (u of users) { if (u.isAdmin) admins.push(u); if (u.isTester) testers.push(u) }","users.filter(admin); users.filter(tester); users.filter(inactive)",Low-Medium
37,JS Perf,Length Check First,length check array compare,React/Next.js,Check array lengths before expensive comparisons,Early return if lengths differ,Always run expensive comparison,"if (a.length !== b.length) return true; // then compare","a.sort().join() !== b.sort().join() // even when lengths differ",Medium-High
38,JS Perf,Early Return,early return exit function,React/Next.js,Return early when result is determined to skip processing,Return immediately on first error,Process all items then check errors,"for (u of users) { if (!u.email) return { error: 'Email required' } }","let hasError; for (...) { if (!email) hasError=true }; if (hasError)...",Low-Medium
39,JS Perf,Hoist RegExp,regexp hoist module,React/Next.js,Don't create RegExp inside render - hoist or memoize,Hoist RegExp to module scope,Create RegExp every render,"const EMAIL_RE = /^[^@]+@[^@]+$/; function validate() { EMAIL_RE.test(x) }","function C() { const re = new RegExp(pattern); re.test(x) }",Low-Medium
40,JS Perf,Loop Min Max,loop min max sort,React/Next.js,Use loop for min/max instead of sort - O(n) vs O(n log n),Single pass loop for min/max,Sort array to find min/max,"let max = arr[0]; for (x of arr) if (x > max) max = x","arr.sort((a,b) => b-a)[0] // O(n log n)",Low
41,JS Perf,Set Map Lookups,set map includes has,React/Next.js,Use Set/Map for O(1) lookups instead of array.includes(),Convert to Set for membership checks,Use .includes() for repeated checks,"const allowed = new Set(['a','b']); allowed.has(id)","const allowed = ['a','b']; allowed.includes(id)",Low-Medium
42,JS Perf,toSorted Immutable,tosorted sort immutable,React/Next.js,Use toSorted() instead of sort() to avoid mutating arrays,Use toSorted() for immutability,Mutate arrays with sort(),"users.toSorted((a,b) => a.name.localeCompare(b.name))","users.sort((a,b) => a.name.localeCompare(b.name)) // mutates",Medium-High
43,Advanced,Event Handler Refs,useeffectevent ref handler,React/Next.js,Store callbacks in refs for stable effect subscriptions,Use useEffectEvent for stable handlers,Re-subscribe on every callback change,"const onEvent = useEffectEvent(handler); useEffect(() => { listen(onEvent) }, [])","useEffect(() => { listen(handler) }, [handler]) // re-subscribes",Low
44,Advanced,useLatest Hook,uselatest ref callback,React/Next.js,Access latest values in callbacks without adding to dependency arrays,Use useLatest for fresh values in stable callbacks,Add callback to effect dependencies,"const cbRef = useLatest(cb); useEffect(() => { setTimeout(() => cbRef.current()) }, [])","useEffect(() => { setTimeout(() => cb()) }, [cb]) // re-runs",Low


path: assets/data/stacks/astro.csv
content: No,Category,Guideline,Description,Do,Don't,Code Good,Code Bad,Severity,Docs URL
1,Architecture,Use Islands Architecture,Astro's partial hydration only loads JS for interactive components,Interactive components with client directives,Hydrate entire page like traditional SPA,<Counter client:load />,Everything as client component,High,https://docs.astro.build/en/concepts/islands/
2,Architecture,Default to zero JS,Astro ships zero JS by default - add only when needed,Static components without client directive,Add client:load to everything,<Header /> (static),<Header client:load /> (unnecessary),High,https://docs.astro.build/en/basics/astro-components/
3,Architecture,Choose right client directive,Different directives for different hydration timing,client:visible for below-fold client:idle for non-critical,client:load for everything,<Comments client:visible />,<Comments client:load />,Medium,https://docs.astro.build/en/reference/directives-reference/#client-directives
4,Architecture,Use content collections,Type-safe content management for blogs docs,Content collections for structured content,Loose markdown files without schema,const posts = await getCollection('blog'),import.meta.glob('./posts/*.md'),High,https://docs.astro.build/en/guides/content-collections/
5,Architecture,Define collection schemas,Zod schemas for content validation,Schema with required fields and types,No schema validation,"defineCollection({ schema: z.object({...}) })",defineCollection({}),High,https://docs.astro.build/en/guides/content-collections/#defining-a-collection-schema
6,Routing,Use file-based routing,Create routes by adding .astro files in pages/,pages/ directory for routes,Manual route configuration,src/pages/about.astro,Custom router setup,Medium,https://docs.astro.build/en/basics/astro-pages/
7,Routing,Dynamic routes with brackets,Use [param] for dynamic routes,Bracket notation for params,Query strings for dynamic content,pages/blog/[slug].astro,pages/blog.astro?slug=x,Medium,https://docs.astro.build/en/guides/routing/#dynamic-routes
8,Routing,Use getStaticPaths for SSG,Generate static pages at build time,getStaticPaths for known dynamic routes,Fetch at runtime for static content,"export async function getStaticPaths() { return [...] }",No getStaticPaths with dynamic route,High,https://docs.astro.build/en/reference/api-reference/#getstaticpaths
9,Routing,Enable SSR when needed,Server-side rendering for dynamic content,output: 'server' or 'hybrid' for dynamic,SSR for purely static sites,"export const prerender = false;",SSR for static blog,Medium,https://docs.astro.build/en/guides/server-side-rendering/
10,Components,Keep .astro for static,Use .astro components for static content,Astro components for layout structure,React/Vue for static markup,<Layout><slot /></Layout>,<ReactLayout>{children}</ReactLayout>,High,
11,Components,Use framework components for interactivity,React Vue Svelte for complex interactivity,Framework component with client directive,Astro component with inline scripts,<ReactCounter client:load />,<script> in .astro for complex state,Medium,https://docs.astro.build/en/guides/framework-components/
12,Components,Pass data via props,Astro components receive props in frontmatter,Astro.props for component data,Global state for simple data,"const { title } = Astro.props;",Import global store,Low,https://docs.astro.build/en/basics/astro-components/#component-props
13,Components,Use slots for composition,Named and default slots for flexible layouts,<slot /> for child content,Props for HTML content,<slot name="header" />,<Component header={<div>...</div>} />,Medium,https://docs.astro.build/en/basics/astro-components/#slots
14,Components,Colocate component styles,Scoped styles in component file,<style> in same .astro file,Separate CSS files for component styles,<style> .card { } </style>,import './Card.css',Low,
15,Styling,Use scoped styles by default,Astro scopes styles to component automatically,<style> for component-specific styles,Global styles for everything,<style> h1 { } </style> (scoped),<style is:global> for everything,Medium,https://docs.astro.build/en/guides/styling/#scoped-styles
16,Styling,Use is:global sparingly,Global styles only when truly needed,is:global for base styles or overrides,is:global for component styles,<style is:global> body { } </style>,<style is:global> .card { } </style>,Medium,
17,Styling,Integrate Tailwind properly,Use @astrojs/tailwind integration,Official Tailwind integration,Manual Tailwind setup,npx astro add tailwind,Manual PostCSS config,Low,https://docs.astro.build/en/guides/integrations-guide/tailwind/
18,Styling,Use CSS variables for theming,Define tokens in :root,CSS custom properties for themes,Hardcoded colors everywhere,:root { --primary: #3b82f6; },color: #3b82f6; everywhere,Medium,
19,Data,Fetch in frontmatter,Data fetching in component frontmatter,Top-level await in frontmatter,useEffect for initial data,const data = await fetch(url),client-side fetch on mount,High,https://docs.astro.build/en/guides/data-fetching/
20,Data,Use Astro.glob for local files,Import multiple local files,Astro.glob for markdown/data files,Manual imports for each file,const posts = await Astro.glob('./posts/*.md'),"import post1; import post2;",Medium,
21,Data,Prefer content collections over glob,Type-safe collections for structured content,getCollection() for blog/docs,Astro.glob for structured content,await getCollection('blog'),await Astro.glob('./blog/*.md'),High,
22,Data,Use environment variables correctly,Import.meta.env for env vars,PUBLIC_ prefix for client vars,Expose secrets to client,import.meta.env.PUBLIC_API_URL,import.meta.env.SECRET in client,High,https://docs.astro.build/en/guides/environment-variables/
23,Performance,Preload critical assets,Use link preload for important resources,Preload fonts above-fold images,No preload hints,"<link rel=""preload"" href=""font.woff2"" as=""font"">",No preload for critical assets,Medium,
24,Performance,Optimize images with astro:assets,Built-in image optimization,<Image /> component for optimization,<img> for local images,"import { Image } from 'astro:assets';","<img src=""./image.jpg"">",High,https://docs.astro.build/en/guides/images/
25,Performance,Use picture for responsive images,Multiple formats and sizes,<Picture /> for art direction,Single image size for all screens,<Picture /> with multiple sources,<Image /> with single size,Medium,
26,Performance,Lazy load below-fold content,Defer loading non-critical content,loading=lazy for images client:visible for components,Load everything immediately,"<img loading=""lazy"">",No lazy loading,Medium,
27,Performance,Minimize client directives,Each directive adds JS bundle,Audit client: usage regularly,Sprinkle client:load everywhere,Only interactive components hydrated,Every component with client:load,High,
28,ViewTransitions,Enable View Transitions,Smooth page transitions,<ViewTransitions /> in head,Full page reloads,"import { ViewTransitions } from 'astro:transitions';",No transition API,Medium,https://docs.astro.build/en/guides/view-transitions/
29,ViewTransitions,Use transition:name,Named elements for morphing,transition:name for persistent elements,Unnamed transitions,"<header transition:name=""header"">",<header> without name,Low,
30,ViewTransitions,Handle transition:persist,Keep state across navigations,transition:persist for media players,Re-initialize on every navigation,"<video transition:persist id=""player"">",Video restarts on navigation,Medium,
31,ViewTransitions,Add fallback for no-JS,Graceful degradation,Content works without JS,Require JS for basic navigation,Static content accessible,Broken without ViewTransitions JS,High,
32,SEO,Use built-in SEO component,Head management for meta tags,Astro SEO integration or manual head,No meta tags,"<title>{title}</title><meta name=""description"">",No SEO tags,High,
33,SEO,Generate sitemap,Automatic sitemap generation,@astrojs/sitemap integration,Manual sitemap maintenance,npx astro add sitemap,Hand-written sitemap.xml,Medium,https://docs.astro.build/en/guides/integrations-guide/sitemap/
34,SEO,Add RSS feed for content,RSS for blogs and content sites,@astrojs/rss for feed generation,No RSS feed,rss() helper in pages/rss.xml.js,No feed for blog,Low,https://docs.astro.build/en/guides/rss/
35,SEO,Use canonical URLs,Prevent duplicate content issues,Astro.url for canonical generation,"<link rel=""canonical"" href={Astro.url}>",No canonical tags,Medium,
36,Integrations,Use official integrations,Astro's integration system,npx astro add for integrations,Manual configuration,npx astro add react,Manual React setup,Medium,https://docs.astro.build/en/guides/integrations-guide/
37,Integrations,Configure integrations in astro.config,Centralized configuration,integrations array in config,Scattered configuration,"integrations: [react(), tailwind()]",Multiple config files,Low,
38,Integrations,Use adapter for deployment,Platform-specific adapters,Correct adapter for host,Wrong or no adapter,@astrojs/vercel for Vercel,No adapter for SSR,High,https://docs.astro.build/en/guides/deploy/
39,TypeScript,Enable TypeScript,Type safety for Astro projects,tsconfig.json with astro types,No TypeScript,Astro TypeScript template,JavaScript only,Medium,https://docs.astro.build/en/guides/typescript/
40,TypeScript,Type component props,Define prop interfaces,Props interface in frontmatter,Untyped props,"interface Props { title: string }",No props typing,Medium,
41,TypeScript,Use strict mode,Catch errors early,strict: true in tsconfig,Loose TypeScript config,strictest template,base template,Low,
42,Markdown,Use MDX for components,Components in markdown content,@astrojs/mdx for interactive docs,Plain markdown with workarounds,<Component /> in .mdx,HTML in .md files,Medium,https://docs.astro.build/en/guides/integrations-guide/mdx/
43,Markdown,Configure markdown plugins,Extend markdown capabilities,remarkPlugins rehypePlugins in config,Manual HTML for features,remarkPlugins: [remarkToc],Manual TOC in every post,Low,
44,Markdown,Use frontmatter for metadata,Structured post metadata,Frontmatter with typed schema,Inline metadata,title date in frontmatter,# Title as first line,Medium,
45,API,Use API routes for endpoints,Server endpoints in pages/api,pages/api/[endpoint].ts for APIs,External API for simple endpoints,pages/api/posts.json.ts,Separate Express server,Medium,https://docs.astro.build/en/guides/endpoints/
46,API,Return proper responses,Use Response object,new Response() with headers,Plain objects,return new Response(JSON.stringify(data)),return data,Medium,
47,API,Handle methods correctly,Export named method handlers,export GET POST handlers,Single default export,export const GET = async () => {},export default async () => {},Low,
48,Security,Sanitize user content,Prevent XSS in dynamic content,set:html only for trusted content,set:html with user input,"<Fragment set:html={sanitized} />","<div set:html={userInput} />",High,
49,Security,Use HTTPS in production,Secure connections,HTTPS for all production sites,HTTP in production,https://example.com,http://example.com,High,
50,Security,Validate API input,Check and sanitize all input,Zod validation for API routes,Trust all input,const body = schema.parse(data),const body = await request.json(),High,
51,Build,Use hybrid rendering,Mix static and dynamic pages,output: 'hybrid' for flexibility,All SSR or all static,prerender per-page basis,Single rendering mode,Medium,https://docs.astro.build/en/guides/server-side-rendering/#hybrid-rendering
52,Build,Analyze bundle size,Monitor JS bundle impact,Build output shows bundle sizes,Ignore bundle growth,Check astro build output,No size monitoring,Medium,
53,Build,Use prefetch,Preload linked pages,prefetch integration,No prefetch for navigation,npx astro add prefetch,Manual prefetch,Low,https://docs.astro.build/en/guides/prefetch/


path: assets/data/stacks/flutter.csv
content: No,Category,Guideline,Description,Do,Don't,Code Good,Code Bad,Severity,Docs URL
1,Widgets,Use StatelessWidget when possible,Immutable widgets are simpler,StatelessWidget for static UI,StatefulWidget for everything,class MyWidget extends StatelessWidget,class MyWidget extends StatefulWidget (static),Medium,https://api.flutter.dev/flutter/widgets/StatelessWidget-class.html
2,Widgets,Keep widgets small,Single responsibility principle,Extract widgets into smaller pieces,Large build methods,Column(children: [Header() Content()]),500+ line build method,Medium,
3,Widgets,Use const constructors,Compile-time constants for performance,const MyWidget() when possible,Non-const for static widgets,const Text('Hello'),Text('Hello') for literals,High,https://dart.dev/guides/language/language-tour#constant-constructors
4,Widgets,Prefer composition over inheritance,Combine widgets using children,Compose widgets,Extend widget classes,Container(child: MyContent()),class MyContainer extends Container,Medium,
5,State,Use setState correctly,Minimal state in StatefulWidget,setState for UI state changes,setState for business logic,setState(() { _counter++; }),Complex logic in setState,Medium,https://api.flutter.dev/flutter/widgets/State/setState.html
6,State,Avoid setState in build,Never call setState during build,setState in callbacks only,setState in build method,onPressed: () => setState(() {}),build() { setState(); },High,
7,State,Use state management for complex apps,Provider Riverpod BLoC,State management for shared state,setState for global state,Provider.of<MyState>(context),Global setState calls,Medium,
8,State,Prefer Riverpod or Provider,Recommended state solutions,Riverpod for new projects,InheritedWidget manually,ref.watch(myProvider),Custom InheritedWidget,Medium,https://riverpod.dev/
9,State,Dispose resources,Clean up controllers and subscriptions,dispose() for cleanup,Memory leaks from subscriptions,@override void dispose() { controller.dispose(); },No dispose implementation,High,
10,Layout,Use Column and Row,Basic layout widgets,Column Row for linear layouts,Stack for simple layouts,"Column(children: [Text(), Button()])",Stack for vertical list,Medium,https://api.flutter.dev/flutter/widgets/Column-class.html
11,Layout,Use Expanded and Flexible,Control flex behavior,Expanded to fill space,Fixed sizes in flex containers,Expanded(child: Container()),Container(width: 200) in Row,Medium,
12,Layout,Use SizedBox for spacing,Consistent spacing,SizedBox for gaps,Container for spacing only,SizedBox(height: 16),Container(height: 16),Low,
13,Layout,Use LayoutBuilder for responsive,Respond to constraints,LayoutBuilder for adaptive layouts,Fixed sizes for responsive,LayoutBuilder(builder: (context constraints) {}),Container(width: 375),Medium,https://api.flutter.dev/flutter/widgets/LayoutBuilder-class.html
14,Layout,Avoid deep nesting,Keep widget tree shallow,Extract deeply nested widgets,10+ levels of nesting,Extract widget to method or class,Column(Row(Column(Row(...)))),Medium,
15,Lists,Use ListView.builder,Lazy list building,ListView.builder for long lists,ListView with children for large lists,"ListView.builder(itemCount: 100, itemBuilder: ...)",ListView(children: items.map(...).toList()),High,https://api.flutter.dev/flutter/widgets/ListView-class.html
16,Lists,Provide itemExtent when known,Skip measurement,itemExtent for fixed height items,No itemExtent for uniform lists,ListView.builder(itemExtent: 50),ListView.builder without itemExtent,Medium,
17,Lists,Use keys for stateful items,Preserve widget state,Key for stateful list items,No key for dynamic lists,ListTile(key: ValueKey(item.id)),ListTile without key,High,
18,Lists,Use SliverList for custom scroll,Custom scroll effects,CustomScrollView with Slivers,Nested ListViews,CustomScrollView(slivers: [SliverList()]),ListView inside ListView,Medium,https://api.flutter.dev/flutter/widgets/SliverList-class.html
19,Navigation,Use Navigator 2.0 or GoRouter,Declarative routing,go_router for navigation,Navigator.push for complex apps,GoRouter(routes: [...]),Navigator.push everywhere,Medium,https://pub.dev/packages/go_router
20,Navigation,Use named routes,Organized navigation,Named routes for clarity,Anonymous routes,Navigator.pushNamed(context '/home'),Navigator.push(context MaterialPageRoute()),Low,
21,Navigation,Handle back button (PopScope),Android back behavior and predictive back (Android 14+),Use PopScope widget (WillPopScope is deprecated),Use WillPopScope,"PopScope(canPop: false, onPopInvoked: (didPop) => ...)",WillPopScope(onWillPop: ...),High,https://api.flutter.dev/flutter/widgets/PopScope-class.html
22,Navigation,Pass typed arguments,Type-safe route arguments,Typed route arguments,Dynamic arguments,MyRoute(id: '123'),arguments: {'id': '123'},Medium,
23,Async,Use FutureBuilder,Async UI building,FutureBuilder for async data,setState for async,FutureBuilder(future: fetchData()),fetchData().then((d) => setState()),Medium,https://api.flutter.dev/flutter/widgets/FutureBuilder-class.html
24,Async,Use StreamBuilder,Stream UI building,StreamBuilder for streams,Manual stream subscription,StreamBuilder(stream: myStream),stream.listen in initState,Medium,https://api.flutter.dev/flutter/widgets/StreamBuilder-class.html
25,Async,Handle loading and error states,Complete async UI states,ConnectionState checks,Only success state,if (snapshot.connectionState == ConnectionState.waiting),No loading indicator,High,
26,Async,Cancel subscriptions,Clean up stream subscriptions,Cancel in dispose,Memory leaks,subscription.cancel() in dispose,No subscription cleanup,High,
27,Theming,Use ThemeData,Consistent theming,ThemeData for app theme,Hardcoded colors,Theme.of(context).primaryColor,Color(0xFF123456) everywhere,Medium,https://api.flutter.dev/flutter/material/ThemeData-class.html
28,Theming,Use ColorScheme,Material 3 color system,ColorScheme for colors,Individual color properties,colorScheme: ColorScheme.fromSeed(),primaryColor: Colors.blue,Medium,
29,Theming,Access theme via context,Dynamic theme access,Theme.of(context),Static theme reference,Theme.of(context).textTheme.bodyLarge,TextStyle(fontSize: 16),Medium,
30,Theming,Support dark mode,Respect system theme,darkTheme in MaterialApp,Light theme only,"MaterialApp(theme: light, darkTheme: dark)",MaterialApp(theme: light),Medium,
31,Animation,Use implicit animations,Simple animations,AnimatedContainer AnimatedOpacity,Explicit for simple transitions,AnimatedContainer(duration: Duration()),AnimationController for fade,Low,https://api.flutter.dev/flutter/widgets/AnimatedContainer-class.html
32,Animation,Use AnimationController for complex,Fine-grained control,AnimationController with Ticker,Implicit for complex sequences,AnimationController(vsync: this),AnimatedContainer for staggered,Medium,
33,Animation,Dispose AnimationControllers,Clean up animation resources,dispose() for controllers,Memory leaks,controller.dispose() in dispose,No controller disposal,High,
34,Animation,Use Hero for transitions,Shared element transitions,Hero for navigation animations,Manual shared element,Hero(tag: 'image' child: Image()),Custom shared element animation,Low,https://api.flutter.dev/flutter/widgets/Hero-class.html
35,Forms,Use Form widget,Form validation,Form with GlobalKey,Individual validation,Form(key: _formKey child: ...),TextField without Form,Medium,https://api.flutter.dev/flutter/widgets/Form-class.html
36,Forms,Use TextEditingController,Control text input,Controller for text fields,onChanged for all text,final controller = TextEditingController(),onChanged: (v) => setState(),Medium,
37,Forms,Validate on submit,Form validation flow,_formKey.currentState!.validate(),Skip validation,if (_formKey.currentState!.validate()),Submit without validation,High,
38,Forms,Dispose controllers,Clean up text controllers,dispose() for controllers,Memory leaks,controller.dispose() in dispose,No controller disposal,High,
39,Performance,Use const widgets,Reduce rebuilds,const for static widgets,No const for literals,const Icon(Icons.add),Icon(Icons.add),High,
40,Performance,Avoid rebuilding entire tree,Minimal rebuild scope,Isolate changing widgets,setState on parent,Consumer only around changing widget,setState on root widget,High,
41,Performance,Use RepaintBoundary,Isolate repaints,RepaintBoundary for animations,Full screen repaints,RepaintBoundary(child: AnimatedWidget()),Animation without boundary,Medium,https://api.flutter.dev/flutter/widgets/RepaintBoundary-class.html
42,Performance,Profile with DevTools,Measure before optimizing,Flutter DevTools profiling,Guess at performance,DevTools performance tab,Optimize without measuring,Medium,https://docs.flutter.dev/tools/devtools
43,Accessibility,Use Semantics widget,Screen reader support,Semantics for accessibility,Missing accessibility info,Semantics(label: 'Submit button'),GestureDetector without semantics,High,https://api.flutter.dev/flutter/widgets/Semantics-class.html
44,Accessibility,Support large fonts,MediaQuery text scaling,MediaQuery.textScaleFactor,Fixed font sizes,style: Theme.of(context).textTheme,TextStyle(fontSize: 14),High,
45,Accessibility,Test with screen readers,TalkBack and VoiceOver,Test accessibility regularly,Skip accessibility testing,Regular TalkBack testing,No screen reader testing,High,
46,Testing,Use widget tests,Test widget behavior,WidgetTester for UI tests,Unit tests only,testWidgets('...' (tester) async {}),Only test() for UI,Medium,https://docs.flutter.dev/testing
47,Testing,Use integration tests,Full app testing,integration_test package,Manual testing only,IntegrationTestWidgetsFlutterBinding,Manual E2E testing,Medium,
48,Testing,Mock dependencies,Isolate tests,Mockito or mocktail,Real dependencies in tests,when(mock.method()).thenReturn(),Real API calls in tests,Medium,
49,Platform,Use Platform checks,Platform-specific code,Platform.isIOS Platform.isAndroid,Same code for all platforms,if (Platform.isIOS) {},Hardcoded iOS behavior,Medium,
50,Platform,Use kIsWeb for web,Web platform detection,kIsWeb for web checks,Platform for web,if (kIsWeb) {},Platform.isWeb (doesn't exist),Medium,
51,Packages,Use pub.dev packages,Community packages,Popular maintained packages,Custom implementations,cached_network_image,Custom image cache,Medium,https://pub.dev/
52,Packages,Check package quality,Quality before adding,Pub points and popularity,Any package without review,100+ pub points,Unmaintained packages,Medium,


path: assets/data/stacks/html-tailwind.csv
content: No,Category,Guideline,Description,Do,Don't,Code Good,Code Bad,Severity,Docs URL
1,Animation,Use Tailwind animate utilities,Built-in animations are optimized and respect reduced-motion,Use animate-pulse animate-spin animate-ping,Custom @keyframes for simple effects,animate-pulse,@keyframes pulse {...},Medium,https://tailwindcss.com/docs/animation
2,Animation,Limit bounce animations,Continuous bounce is distracting and causes motion sickness,Use animate-bounce sparingly on CTAs only,Multiple bounce animations on page,Single CTA with animate-bounce,5+ elements with animate-bounce,High,
3,Animation,Transition duration,Use appropriate transition speeds for UI feedback,duration-150 to duration-300 for UI,duration-1000 or longer for UI elements,transition-all duration-200,transition-all duration-1000,Medium,https://tailwindcss.com/docs/transition-duration
4,Animation,Hover transitions,Add smooth transitions on hover state changes,Add transition class with hover states,Instant hover changes without transition,hover:bg-gray-100 transition-colors,hover:bg-gray-100 (no transition),Low,
5,Z-Index,Use Tailwind z-* scale,Consistent stacking context with predefined scale,z-0 z-10 z-20 z-30 z-40 z-50,Arbitrary z-index values,z-50 for modals,z-[9999],Medium,https://tailwindcss.com/docs/z-index
6,Z-Index,Fixed elements z-index,Fixed navigation and modals need explicit z-index,z-50 for nav z-40 for dropdowns,Relying on DOM order for stacking,fixed top-0 z-50,fixed top-0 (no z-index),High,
7,Z-Index,Negative z-index for backgrounds,Use negative z-index for decorative backgrounds,z-[-1] for background elements,Positive z-index for backgrounds,-z-10 for decorative,z-10 for background,Low,
8,Layout,Container max-width,Limit content width for readability,max-w-7xl mx-auto for main content,Full-width content on large screens,max-w-7xl mx-auto px-4,w-full (no max-width),Medium,https://tailwindcss.com/docs/container
9,Layout,Responsive padding,Adjust padding for different screen sizes,px-4 md:px-6 lg:px-8,Same padding all sizes,px-4 sm:px-6 lg:px-8,px-8 (same all sizes),Medium,
10,Layout,Grid gaps,Use consistent gap utilities for spacing,gap-4 gap-6 gap-8,Margins on individual items,grid gap-6,grid with mb-4 on each item,Medium,https://tailwindcss.com/docs/gap
11,Layout,Flexbox alignment,Use flex utilities for alignment,items-center justify-between,Multiple nested wrappers,flex items-center justify-between,Nested divs for alignment,Low,
12,Images,Aspect ratio,Maintain consistent image aspect ratios,aspect-video aspect-square,No aspect ratio on containers,aspect-video rounded-lg,No aspect control,Medium,https://tailwindcss.com/docs/aspect-ratio
13,Images,Object fit,Control image scaling within containers,object-cover object-contain,Stretched distorted images,object-cover w-full h-full,No object-fit,Medium,https://tailwindcss.com/docs/object-fit
14,Images,Lazy loading,Defer loading of off-screen images,loading='lazy' on images,All images eager load,<img loading='lazy'>,<img> without lazy,High,
15,Images,Responsive images,Serve appropriate image sizes,srcset and sizes attributes,Same large image all devices,srcset with multiple sizes,4000px image everywhere,High,
16,Typography,Prose plugin,Use @tailwindcss/typography for rich text,prose prose-lg for article content,Custom styles for markdown,prose prose-lg max-w-none,Custom text styling,Medium,https://tailwindcss.com/docs/typography-plugin
17,Typography,Line height,Use appropriate line height for readability,leading-relaxed for body text,Default tight line height,leading-relaxed (1.625),leading-none or leading-tight,Medium,https://tailwindcss.com/docs/line-height
18,Typography,Font size scale,Use consistent text size scale,text-sm text-base text-lg text-xl,Arbitrary font sizes,text-lg,text-[17px],Low,https://tailwindcss.com/docs/font-size
19,Typography,Text truncation,Handle long text gracefully,truncate or line-clamp-*,Overflow breaking layout,line-clamp-2,No overflow handling,Medium,https://tailwindcss.com/docs/text-overflow
20,Colors,Opacity utilities,Use color opacity utilities,bg-black/50 text-white/80,Separate opacity class,bg-black/50,bg-black opacity-50,Low,https://tailwindcss.com/docs/background-color
21,Colors,Dark mode,Support dark mode with dark: prefix,dark:bg-gray-900 dark:text-white,No dark mode support,dark:bg-gray-900,Only light theme,Medium,https://tailwindcss.com/docs/dark-mode
22,Colors,Semantic colors,Use semantic color naming in config,primary secondary danger success,Generic color names in components,bg-primary,bg-blue-500 everywhere,Medium,
23,Spacing,Consistent spacing scale,Use Tailwind spacing scale consistently,p-4 m-6 gap-8,Arbitrary pixel values,p-4 (1rem),p-[15px],Low,https://tailwindcss.com/docs/customizing-spacing
24,Spacing,Negative margins,Use sparingly for overlapping effects,-mt-4 for overlapping elements,Negative margins for layout fixing,-mt-8 for card overlap,-m-2 to fix spacing issues,Medium,
25,Spacing,Space between,Use space-y-* for vertical lists,space-y-4 on flex/grid column,Margin on each child,space-y-4,Each child has mb-4,Low,https://tailwindcss.com/docs/space
26,Forms,Focus states,Always show focus indicators,focus:ring-2 focus:ring-blue-500,Remove focus outline,focus:ring-2 focus:ring-offset-2,focus:outline-none (no replacement),High,
27,Forms,Input sizing,Consistent input dimensions,h-10 px-3 for inputs,Inconsistent input heights,h-10 w-full px-3,Various heights per input,Medium,
28,Forms,Disabled states,Clear disabled styling,disabled:opacity-50 disabled:cursor-not-allowed,No disabled indication,disabled:opacity-50,Same style as enabled,Medium,
29,Forms,Placeholder styling,Style placeholder text appropriately,placeholder:text-gray-400,Dark placeholder text,placeholder:text-gray-400,Default dark placeholder,Low,
30,Responsive,Mobile-first approach,Start with mobile styles and add breakpoints,Default mobile + md: lg: xl:,Desktop-first approach,text-sm md:text-base,text-base max-md:text-sm,Medium,https://tailwindcss.com/docs/responsive-design
31,Responsive,Breakpoint testing,Test at standard breakpoints,320 375 768 1024 1280 1536,Only test on development device,Test all breakpoints,Single device testing,High,
32,Responsive,Hidden/shown utilities,Control visibility per breakpoint,hidden md:block,Different content per breakpoint,hidden md:flex,Separate mobile/desktop components,Low,https://tailwindcss.com/docs/display
33,Buttons,Button sizing,Consistent button dimensions,px-4 py-2 or px-6 py-3,Inconsistent button sizes,px-4 py-2 text-sm,Various padding per button,Medium,
34,Buttons,Touch targets,Minimum 44px touch target on mobile,min-h-[44px] on mobile,Small buttons on mobile,min-h-[44px] min-w-[44px],h-8 w-8 on mobile,High,
35,Buttons,Loading states,Show loading feedback,disabled + spinner icon,Clickable during loading,<Button disabled><Spinner/></Button>,Button without loading state,High,
36,Buttons,Icon buttons,Accessible icon-only buttons,aria-label on icon buttons,Icon button without label,<button aria-label='Close'><XIcon/></button>,<button><XIcon/></button>,High,
37,Cards,Card structure,Consistent card styling,rounded-lg shadow-md p-6,Inconsistent card styles,rounded-2xl shadow-lg p-6,Mixed card styling,Low,
38,Cards,Card hover states,Interactive cards should have hover feedback,hover:shadow-lg transition-shadow,No hover on clickable cards,hover:shadow-xl transition-shadow,Static cards that are clickable,Medium,
39,Cards,Card spacing,Consistent internal card spacing,space-y-4 for card content,Inconsistent internal spacing,space-y-4 or p-6,Mixed mb-2 mb-4 mb-6,Low,
40,Accessibility,Screen reader text,Provide context for screen readers,sr-only for hidden labels,Missing context for icons,<span class='sr-only'>Close menu</span>,No label for icon button,High,https://tailwindcss.com/docs/screen-readers
41,Accessibility,Focus visible,Show focus only for keyboard users,focus-visible:ring-2,Focus on all interactions,focus-visible:ring-2,focus:ring-2 (shows on click too),Medium,
42,Accessibility,Reduced motion,Respect user motion preferences,motion-reduce:animate-none,Ignore motion preferences,motion-reduce:transition-none,No reduced motion support,High,https://tailwindcss.com/docs/hover-focus-and-other-states#prefers-reduced-motion
43,Performance,Configure content paths,Tailwind needs to know where classes are used,Use 'content' array in config,Use deprecated 'purge' option (v2),"content: ['./src/**/*.{js,ts,jsx,tsx}']",purge: [...],High,https://tailwindcss.com/docs/content-configuration
44,Performance,JIT mode,Use JIT for faster builds and smaller bundles,JIT enabled (default in v3),Full CSS in development,Tailwind v3 defaults,Tailwind v2 without JIT,Medium,
45,Performance,Avoid @apply bloat,Use @apply sparingly,Direct utilities in HTML,Heavy @apply usage,class='px-4 py-2 rounded',@apply px-4 py-2 rounded;,Low,https://tailwindcss.com/docs/reusing-styles
46,Plugins,Official plugins,Use official Tailwind plugins,@tailwindcss/forms typography aspect-ratio,Custom implementations,@tailwindcss/forms,Custom form reset CSS,Medium,https://tailwindcss.com/docs/plugins
47,Plugins,Custom utilities,Create utilities for repeated patterns,Custom utility in config,Repeated arbitrary values,Custom shadow utility,"shadow-[0_4px_20px_rgba(0,0,0,0.1)] everywhere",Medium,
48,Layout,Container Queries,Use @container for component-based responsiveness,Use @container and @lg: etc.,Media queries for component internals,@container @lg:grid-cols-2,@media (min-width: ...) inside component,Medium,https://github.com/tailwindlabs/tailwindcss-container-queries
49,Interactivity,Group and Peer,Style based on parent/sibling state,group-hover peer-checked,JS for simple state interactions,group-hover:text-blue-500,onMouseEnter={() => setHover(true)},Low,https://tailwindcss.com/docs/hover-focus-and-other-states#styling-based-on-parent-state
50,Customization,Arbitrary Values,Use [] for one-off values,w-[350px] for specific needs,Creating config for single use,top-[117px] (if strictly needed),style={{ top: '117px' }},Low,https://tailwindcss.com/docs/adding-custom-styles#using-arbitrary-values
51,Colors,Theme color variables,Define colors in Tailwind theme and use directly,bg-primary text-success border-cta,bg-[var(--color-primary)] text-[var(--color-success)],bg-primary,bg-[var(--color-primary)],Medium,https://tailwindcss.com/docs/customizing-colors
52,Colors,Use bg-linear-to-* for gradients,Tailwind v4 uses bg-linear-to-* syntax for gradients,bg-linear-to-r bg-linear-to-b,bg-gradient-to-* (deprecated in v4),bg-linear-to-r from-blue-500 to-purple-500,bg-gradient-to-r from-blue-500 to-purple-500,Medium,https://tailwindcss.com/docs/background-image
53,Layout,Use shrink-0 shorthand,Shorter class name for flex-shrink-0,shrink-0 shrink,flex-shrink-0 flex-shrink,shrink-0,flex-shrink-0,Low,https://tailwindcss.com/docs/flex-shrink
54,Layout,Use size-* for square dimensions,Single utility for equal width and height,size-4 size-8 size-12,Separate h-* w-* for squares,size-6,h-6 w-6,Low,https://tailwindcss.com/docs/size
55,Images,SVG explicit dimensions,Add width/height attributes to SVGs to prevent layout shift before CSS loads,<svg class='size-6' width='24' height='24'>,SVG without explicit dimensions,<svg class='size-6' width='24' height='24'>,<svg class='size-6'>,High,


path: assets/data/stacks/jetpack-compose.csv
content: No,Category,Guideline,Description,Do,Don't,Code Good,Code Bad,Severity,Docs URL
1,Composable,Pure UI composables,Composable functions should only render UI,Accept state and callbacks,Calling usecase/repo,Pure UI composable,Business logic in UI,High,https://developer.android.com/jetpack/compose/mental-model
2,Composable,Small composables,Each composable has single responsibility,Split into components,Huge composable,Reusable UI,Monolithic UI,Medium,
3,Composable,Stateless by default,Prefer stateless composables,Hoist state,Local mutable state,Stateless UI,Hidden state,High,https://developer.android.com/jetpack/compose/state#state-hoisting
4,State,Single source of truth,UI state comes from one source,StateFlow from VM,Multiple states,Unified UiState,Scattered state,High,https://developer.android.com/topic/architecture/ui-layer
5,State,Model UI State,Use sealed interface/data class,UiState.Loading,Boolean flags,Explicit state,Flag hell,High,
6,State,remember only UI state,remember for UI-only state,"Scroll, animation",Business state,Correct remember,Misuse remember,High,https://developer.android.com/jetpack/compose/state
7,State,rememberSaveable,Persist state across config,rememberSaveable,remember,State survives,State lost,High,https://developer.android.com/jetpack/compose/state#restore-ui-state
8,State,derivedStateOf,Optimize recomposition,derivedStateOf,Recompute always,Optimized,Jank,Medium,https://developer.android.com/jetpack/compose/performance
9,SideEffect,LaunchedEffect keys,Use correct keys,LaunchedEffect(id),LaunchedEffect(Unit),Scoped effect,Infinite loop,High,https://developer.android.com/jetpack/compose/side-effects
10,SideEffect,rememberUpdatedState,Avoid stale lambdas,rememberUpdatedState,Capture directly,Safe callback,Stale state,Medium,https://developer.android.com/jetpack/compose/side-effects
11,SideEffect,DisposableEffect,Clean up resources,onDispose,No cleanup,No leak,Memory leak,High,
12,Architecture,Unidirectional data flow,UI → VM → State,onEvent,Two-way binding,Predictable flow,Hard debug,High,https://developer.android.com/topic/architecture
13,Architecture,No business logic in UI,Logic belongs to VM,Collect state,Call repo,Clean UI,Fat UI,High,
14,Architecture,Expose immutable state,Expose StateFlow,asStateFlow,Mutable exposed,Safe API,State mutation,High,
15,Lifecycle,Lifecycle-aware collect,Use collectAsStateWithLifecycle,Lifecycle aware,collectAsState,No leak,Leak,High,https://developer.android.com/jetpack/compose/lifecycle
16,Navigation,Event-based navigation,VM emits navigation event,"VM: Channel + receiveAsFlow(), V: Collect with Dispatchers.Main.immediate",Nav in UI,Decoupled nav,Using State / SharedFlow for navigation -> event is replayed and navigation fires again (StateFlow),High,https://developer.android.com/jetpack/compose/navigation
17,Navigation,Typed routes,Use sealed routes,sealed class Route,String routes,Type-safe,Runtime crash,Medium,
18,Performance,Stable parameters,Prefer immutable/stable params,@Immutable,Mutable params,Stable recomposition,Extra recomposition,High,https://developer.android.com/jetpack/compose/performance
19,Performance,Use key in Lazy,Provide stable keys,key=id,No key,Stable list,Item jump,High,
20,Performance,Avoid heavy work,No heavy computation in UI,Precompute in VM,Compute in UI,Smooth UI,Jank,High,
21,Performance,Remember expensive objects,remember heavy objects,remember,Recreate each recomposition,Efficient,Wasteful,Medium,
22,Theming,Design system,Centralized theme,Material3 tokens,Hardcoded values,Consistent UI,Inconsistent,High,https://developer.android.com/jetpack/compose/themes
23,Theming,Dark mode support,Theme-based colors,colorScheme,Fixed color,Adaptive UI,Broken dark,Medium,
24,Layout,Prefer Modifier over extra layouts,Use Modifier to adjust layout instead of adding wrapper composables,Use Modifier.padding(),Wrap content with extra Box,Padding via modifier,Box just for padding,High,https://developer.android.com/jetpack/compose/modifiers
25,Layout,Avoid deep layout nesting,Deep layout trees increase measure & layout cost,Keep layout flat,Box ? Column ? Box ? Row,Flat hierarchy,Deep nested tree,High,
26,Layout,Use Row/Column for linear layout,Linear layouts are simpler and more performant,Use Row / Column,Custom layout for simple cases,Row/Column usage,Over-engineered layout,High,
27,Layout,Use Box only for overlapping content,Box should be used only when children overlap,Stack elements,Use Box as Column,Proper overlay,Misused Box,Medium,
28,Layout,Prefer LazyColumn over Column scroll,Lazy layouts are virtualized and efficient,LazyColumn,Column.verticalScroll(),Lazy list,Scrollable Column,High,https://developer.android.com/jetpack/compose/lists
29,Layout,Avoid nested scroll containers,Nested scrolling causes UX & performance issues,Single scroll container,Scroll inside scroll,One scroll per screen,Nested scroll,High,
30,Layout,Avoid fillMaxSize by default,fillMaxSize may break parent constraints,Use exact size,Fill max everywhere,Constraint-aware size,Overfilled layout,Medium,
31,Layout,Avoid intrinsic size unless necessary,Intrinsic measurement is expensive,Explicit sizing,IntrinsicSize.Min,Predictable layout,Expensive measure,High,https://developer.android.com/jetpack/compose/layout/intrinsics
32,Layout,Use Arrangement and Alignment APIs,Declare layout intent explicitly,Use Arrangement / Alignment,Manual spacing hacks,Declarative spacing,Magic spacing,High,
33,Layout,Extract reusable layout patterns,Repeated layouts should be shared,Create layout composable,Copy-paste layouts,Reusable scaffold,Duplicated layout,High,
34,Theming,No hardcoded text style,Use typography,MaterialTheme.typography,Hardcode sp,Scalable,Inconsistent,Medium,
35,Testing,Stateless UI testing,Composable easy to test,Pass state,Hidden state,Testable,Hard test,High,https://developer.android.com/jetpack/compose/testing
36,Testing,Use testTag,Stable UI selectors,Modifier.testTag,Find by text,Stable tests,Flaky tests,Medium,
37,Preview,Multiple previews,Preview multiple states,@Preview,Single preview,Better dev UX,Misleading,Low,https://developer.android.com/jetpack/compose/tooling/preview
38,DI,Inject VM via Hilt,Use hiltViewModel,@HiltViewModel,Manual VM,Clean DI,Coupling,High,https://developer.android.com/training/dependency-injection/hilt-jetpack
39,DI,No DI in UI,Inject in VM,Constructor inject,Inject composable,Proper scope,Wrong scope,High,
40,Accessibility,Content description,Accessible UI,contentDescription,Ignore a11y,Inclusive,A11y fail,Medium,https://developer.android.com/jetpack/compose/accessibility
41,Accessibility,Semantics,Use semantics API,Modifier.semantics,None,Testable a11y,Invisible,Medium,
42,Animation,Compose animation APIs,Use animate*AsState,AnimatedVisibility,Manual anim,Smooth,Jank,Medium,https://developer.android.com/jetpack/compose/animation
43,Animation,Avoid animation logic in VM,Animation is UI concern,Animate in UI,Animate in VM,Correct layering,Mixed concern,Low,
44,Modularization,Feature-based UI modules,UI per feature,:feature:ui,God module,Scalable,Tight coupling,High,https://developer.android.com/topic/modularization
45,Modularization,Public UI contracts,Expose minimal UI API,Interface/Route,Expose impl,Encapsulated,Leaky module,Medium,
46,State,Snapshot state only,Use Compose state,mutableStateOf,Custom observable,Compose aware,Buggy UI,Medium,
47,State,Avoid mutable collections,Immutable list/map,PersistentList,MutableList,Stable UI,Silent bug,High,
48,Lifecycle,RememberCoroutineScope usage,Only for UI jobs,UI coroutine,Long jobs,Scoped job,Leak,Medium,https://developer.android.com/jetpack/compose/side-effects#remembercoroutinescope
49,Interop,Interop View carefully,Use AndroidView,Isolated usage,Mix everywhere,Safe interop,Messy UI,Low,https://developer.android.com/jetpack/compose/interop
50,Interop,Avoid legacy patterns,No LiveData in UI,StateFlow,LiveData,Modern stack,Legacy debt,Medium,
51,Debug,Use layout inspector,Inspect recomposition,Tools,Blind debug,Fast debug,Guessing,Low,https://developer.android.com/studio/debug/layout-inspector
52,Debug,Enable recomposition counts,Track recomposition,Debug flags,Ignore,Performance aware,Hidden jank,Low,


path: assets/data/stacks/nextjs.csv
content: No,Category,Guideline,Description,Do,Don't,Code Good,Code Bad,Severity,Docs URL
1,Routing,Use App Router for new projects,App Router is the recommended approach in Next.js 14+,app/ directory with page.tsx,pages/ for new projects,app/dashboard/page.tsx,pages/dashboard.tsx,Medium,https://nextjs.org/docs/app
2,Routing,Use file-based routing,Create routes by adding files in app directory,page.tsx for routes layout.tsx for layouts,Manual route configuration,app/blog/[slug]/page.tsx,Custom router setup,Medium,https://nextjs.org/docs/app/building-your-application/routing
3,Routing,Colocate related files,Keep components styles tests with their routes,Component files alongside page.tsx,Separate components folder,app/dashboard/_components/,components/dashboard/,Low,
4,Routing,Use route groups for organization,Group routes without affecting URL,Parentheses for route groups,Nested folders affecting URL,(marketing)/about/page.tsx,marketing/about/page.tsx,Low,https://nextjs.org/docs/app/building-your-application/routing/route-groups
5,Routing,Handle loading states,Use loading.tsx for route loading UI,loading.tsx alongside page.tsx,Manual loading state management,app/dashboard/loading.tsx,useState for loading in page,Medium,https://nextjs.org/docs/app/building-your-application/routing/loading-ui-and-streaming
6,Routing,Handle errors with error.tsx,Catch errors at route level,error.tsx with reset function,try/catch in every component,app/dashboard/error.tsx,try/catch in page component,High,https://nextjs.org/docs/app/building-your-application/routing/error-handling
7,Rendering,Use Server Components by default,Server Components reduce client JS bundle,Keep components server by default,Add 'use client' unnecessarily,export default function Page(),('use client') for static content,High,https://nextjs.org/docs/app/building-your-application/rendering/server-components
8,Rendering,Mark Client Components explicitly,'use client' for interactive components,Add 'use client' only when needed,Server Component with hooks/events,('use client') for onClick useState,No directive with useState,High,https://nextjs.org/docs/app/building-your-application/rendering/client-components
9,Rendering,Push Client Components down,Keep Client Components as leaf nodes,Client wrapper for interactive parts only,Mark page as Client Component,<InteractiveButton/> in Server Page,('use client') on page.tsx,High,
10,Rendering,Use streaming for better UX,Stream content with Suspense boundaries,Suspense for slow data fetches,Wait for all data before render,<Suspense><SlowComponent/></Suspense>,await allData then render,Medium,https://nextjs.org/docs/app/building-your-application/routing/loading-ui-and-streaming
11,Rendering,Choose correct rendering strategy,SSG for static SSR for dynamic ISR for semi-static,generateStaticParams for known paths,SSR for static content,export const revalidate = 3600,fetch without cache config,Medium,
12,DataFetching,Fetch data in Server Components,Fetch directly in async Server Components,async function Page() { const data = await fetch() },useEffect for initial data,const data = await fetch(url),useEffect(() => fetch(url)),High,https://nextjs.org/docs/app/building-your-application/data-fetching
13,DataFetching,Configure caching explicitly (Next.js 15+),Next.js 15 changed defaults to uncached for fetch,Explicitly set cache: 'force-cache' for static data,Assume default is cached (it's not in Next.js 15),fetch(url { cache: 'force-cache' }),fetch(url) // Uncached in v15,High,https://nextjs.org/docs/app/building-your-application/upgrading/version-15
14,DataFetching,Deduplicate fetch requests,React and Next.js dedupe same requests,Same fetch call in multiple components,Manual request deduplication,Multiple components fetch same URL,Custom cache layer,Low,
15,DataFetching,Use Server Actions for mutations,Server Actions for form submissions,action={serverAction} in forms,API route for every mutation,<form action={createPost}>,<form onSubmit={callApiRoute}>,Medium,https://nextjs.org/docs/app/building-your-application/data-fetching/server-actions-and-mutations
16,DataFetching,Revalidate data appropriately,Use revalidatePath/revalidateTag after mutations,Revalidate after Server Action,'use client' with manual refetch,revalidatePath('/posts'),router.refresh() everywhere,Medium,https://nextjs.org/docs/app/building-your-application/caching#revalidating
17,Images,Use next/image for optimization,Automatic image optimization and lazy loading,<Image> component for all images,<img> tags directly,<Image src={} alt={} width={} height={}>,<img src={}/>,High,https://nextjs.org/docs/app/building-your-application/optimizing/images
18,Images,Provide width and height,Prevent layout shift with dimensions,width and height props or fill,Missing dimensions,<Image width={400} height={300}/>,<Image src={url}/>,High,
19,Images,Use fill for responsive images,Fill container with object-fit,fill prop with relative parent,Fixed dimensions for responsive,"<Image fill className=""object-cover""/>",<Image width={window.width}/>,Medium,
20,Images,Configure remote image domains,Whitelist external image sources,remotePatterns in next.config.js,Allow all domains,remotePatterns: [{ hostname: 'cdn.example.com' }],domains: ['*'],High,https://nextjs.org/docs/app/api-reference/components/image#remotepatterns
21,Images,Use priority for LCP images,Mark above-fold images as priority,priority prop on hero images,All images with priority,<Image priority src={hero}/>,<Image priority/> on every image,Medium,
22,Fonts,Use next/font for fonts,Self-hosted fonts with zero layout shift,next/font/google or next/font/local,External font links,import { Inter } from 'next/font/google',"<link href=""fonts.googleapis.com""/>",Medium,https://nextjs.org/docs/app/building-your-application/optimizing/fonts
23,Fonts,Apply font to layout,Set font in root layout for consistency,className on body in layout.tsx,Font in individual pages,<body className={inter.className}>,Each page imports font,Low,
24,Fonts,Use variable fonts,Variable fonts reduce bundle size,Single variable font file,Multiple font weights as files,Inter({ subsets: ['latin'] }),Inter_400 Inter_500 Inter_700,Low,
25,Metadata,Use generateMetadata for dynamic,Generate metadata based on params,export async function generateMetadata(),Hardcoded metadata everywhere,generateMetadata({ params }),export const metadata = {},Medium,https://nextjs.org/docs/app/building-your-application/optimizing/metadata
26,Metadata,Include OpenGraph images,Add OG images for social sharing,opengraph-image.tsx or og property,Missing social preview images,opengraph: { images: ['/og.png'] },No OG configuration,Medium,
27,Metadata,Use metadata API,Export metadata object for static metadata,export const metadata = {},Manual head tags,export const metadata = { title: 'Page' },<head><title>Page</title></head>,Medium,
28,API,Use Route Handlers for APIs,app/api routes for API endpoints,app/api/users/route.ts,pages/api for new projects,export async function GET(request),export default function handler,Medium,https://nextjs.org/docs/app/building-your-application/routing/route-handlers
29,API,Return proper Response objects,Use NextResponse for API responses,NextResponse.json() for JSON,Plain objects or res.json(),return NextResponse.json({ data }),return { data },Medium,
30,API,Handle HTTP methods explicitly,Export named functions for methods,Export GET POST PUT DELETE,Single handler for all methods,export async function POST(),switch(req.method),Low,
31,API,Validate request body,Validate input before processing,Zod or similar for validation,Trust client input,const body = schema.parse(await req.json()),const body = await req.json(),High,
32,Middleware,Use middleware for auth,Protect routes with middleware.ts,middleware.ts at root,Auth check in every page,export function middleware(request),if (!session) redirect in page,Medium,https://nextjs.org/docs/app/building-your-application/routing/middleware
33,Middleware,Match specific paths,Configure middleware matcher,config.matcher for specific routes,Run middleware on all routes,matcher: ['/dashboard/:path*'],No matcher config,Medium,
34,Middleware,Keep middleware edge-compatible,Middleware runs on Edge runtime,Edge-compatible code only,Node.js APIs in middleware,Edge-compatible auth check,fs.readFile in middleware,High,
35,Environment,Use NEXT_PUBLIC prefix,Client-accessible env vars need prefix,NEXT_PUBLIC_ for client vars,Server vars exposed to client,NEXT_PUBLIC_API_URL,API_SECRET in client code,High,https://nextjs.org/docs/app/building-your-application/configuring/environment-variables
36,Environment,Validate env vars,Check required env vars exist,Validate on startup,Undefined env at runtime,if (!process.env.DATABASE_URL) throw,process.env.DATABASE_URL (might be undefined),High,
37,Environment,Use .env.local for secrets,Local env file for development secrets,.env.local gitignored,Secrets in .env committed,.env.local with secrets,.env with DATABASE_PASSWORD,High,
38,Performance,Analyze bundle size,Use @next/bundle-analyzer,Bundle analyzer in dev,Ship large bundles blindly,ANALYZE=true npm run build,No bundle analysis,Medium,https://nextjs.org/docs/app/building-your-application/optimizing/bundle-analyzer
39,Performance,Use dynamic imports,Code split with next/dynamic,dynamic() for heavy components,Import everything statically,const Chart = dynamic(() => import('./Chart')),import Chart from './Chart',Medium,https://nextjs.org/docs/app/building-your-application/optimizing/lazy-loading
40,Performance,Avoid layout shifts,Reserve space for dynamic content,Skeleton loaders aspect ratios,Content popping in,"<Skeleton className=""h-48""/>",No placeholder for async content,High,
41,Performance,Use Partial Prerendering,Combine static and dynamic in one route,Static shell with Suspense holes,Full dynamic or static pages,Static header + dynamic content,Entire page SSR,Low,https://nextjs.org/docs/app/building-your-application/rendering/partial-prerendering
42,Link,Use next/link for navigation,Client-side navigation with prefetching,"<Link href=""""> for internal links",<a> for internal navigation,"<Link href=""/about"">About</Link>","<a href=""/about"">About</a>",High,https://nextjs.org/docs/app/api-reference/components/link
43,Link,Prefetch strategically,Control prefetching behavior,prefetch={false} for low-priority,Prefetch all links,<Link prefetch={false}>,Default prefetch on every link,Low,
44,Link,Use scroll option appropriately,Control scroll behavior on navigation,scroll={false} for tabs pagination,Always scroll to top,<Link scroll={false}>,Manual scroll management,Low,
45,Config,Use next.config.js correctly,Configure Next.js behavior,Proper config options,Deprecated or wrong options,images: { remotePatterns: [] },images: { domains: [] },Medium,https://nextjs.org/docs/app/api-reference/next-config-js
46,Config,Enable strict mode,Catch potential issues early,reactStrictMode: true,Strict mode disabled,reactStrictMode: true,reactStrictMode: false,Medium,
47,Config,Configure redirects and rewrites,Use config for URL management,redirects() rewrites() in config,Manual redirect handling,redirects: async () => [...],res.redirect in pages,Medium,https://nextjs.org/docs/app/api-reference/next-config-js/redirects
48,Deployment,Use Vercel for easiest deploy,Vercel optimized for Next.js,Deploy to Vercel,Self-host without knowledge,vercel deploy,Complex Docker setup for simple app,Low,https://nextjs.org/docs/app/building-your-application/deploying
49,Deployment,Configure output for self-hosting,Set output option for deployment target,output: 'standalone' for Docker,Default output for containers,output: 'standalone',No output config for Docker,Medium,https://nextjs.org/docs/app/building-your-application/deploying#self-hosting
50,Security,Sanitize user input,Never trust user input,Escape sanitize validate all input,Direct interpolation of user data,DOMPurify.sanitize(userInput),dangerouslySetInnerHTML={{ __html: userInput }},High,
51,Security,Use CSP headers,Content Security Policy for XSS protection,Configure CSP in next.config.js,No security headers,headers() with CSP,No CSP configuration,High,https://nextjs.org/docs/app/building-your-application/configuring/content-security-policy
52,Security,Validate Server Action input,Server Actions are public endpoints,Validate and authorize in Server Action,Trust Server Action input,Auth check + validation in action,Direct database call without check,High,


path: assets/data/stacks/nuxt-ui.csv
content: No,Category,Guideline,Description,Do,Don't,Code Good,Code Bad,Severity,Docs URL
1,Installation,Add Nuxt UI module,Install and configure Nuxt UI in your Nuxt project,pnpm add @nuxt/ui and add to modules,Manual component imports,"modules: ['@nuxt/ui']","import { UButton } from '@nuxt/ui'",High,https://ui.nuxt.com/docs/getting-started/installation/nuxt
2,Installation,Import Tailwind and Nuxt UI CSS,Required CSS imports in main.css file,@import tailwindcss and @import @nuxt/ui,Skip CSS imports,"@import ""tailwindcss""; @import ""@nuxt/ui"";",No CSS imports,High,https://ui.nuxt.com/docs/getting-started/installation/nuxt
3,Installation,Wrap app with UApp component,UApp provides global configs for Toast Tooltip and overlays,<UApp> wrapper in app.vue,Skip UApp wrapper,<UApp><NuxtPage/></UApp>,<NuxtPage/> without wrapper,High,https://ui.nuxt.com/docs/components/app
4,Components,Use U prefix for components,All Nuxt UI components use U prefix by default,UButton UInput UModal,Button Input Modal,<UButton>Click</UButton>,<Button>Click</Button>,Medium,https://ui.nuxt.com/docs/getting-started/installation/nuxt
5,Components,Use semantic color props,Use semantic colors like primary secondary error,color="primary" color="error",Hardcoded colors,"<UButton color=""primary"">","<UButton class=""bg-green-500"">",Medium,https://ui.nuxt.com/docs/getting-started/theme/design-system
6,Components,Use variant prop for styling,Nuxt UI provides solid outline soft subtle ghost link variants,variant="soft" variant="outline",Custom button classes,"<UButton variant=""soft"">","<UButton class=""border bg-transparent"">",Medium,https://ui.nuxt.com/docs/components/button
7,Components,Use size prop consistently,Components support xs sm md lg xl sizes,size="sm" size="lg",Arbitrary sizing classes,"<UButton size=""lg"">","<UButton class=""text-xl px-6"">",Low,https://ui.nuxt.com/docs/components/button
8,Icons,Use icon prop with Iconify format,Nuxt UI supports Iconify icons via icon prop,icon="lucide:home" icon="heroicons:user",i-lucide-home format,"<UButton icon=""lucide:home"">","<UButton icon=""i-lucide-home"">",Medium,https://ui.nuxt.com/docs/getting-started/integrations/icons/nuxt
9,Icons,Use leadingIcon and trailingIcon,Position icons with dedicated props for clarity,leadingIcon="lucide:plus" trailingIcon="lucide:arrow-right",Manual icon positioning,"<UButton leadingIcon=""lucide:plus"">","<UButton><Icon name=""lucide:plus""/>Add</UButton>",Low,https://ui.nuxt.com/docs/components/button
10,Theming,Configure colors in app.config.ts,Runtime color configuration without restart,ui.colors.primary in app.config.ts,Hardcoded colors in components,"defineAppConfig({ ui: { colors: { primary: 'blue' } } })","<UButton class=""bg-blue-500"">",High,https://ui.nuxt.com/docs/getting-started/theme/design-system
11,Theming,Use @theme directive for custom colors,Define design tokens in CSS with Tailwind @theme,@theme { --color-brand-500: #xxx },Inline color definitions,@theme { --color-brand-500: #ef4444; },:style="{ color: '#ef4444' }",Medium,https://ui.nuxt.com/docs/getting-started/theme/design-system
12,Theming,Extend semantic colors in nuxt.config,Register new colors like tertiary in theme.colors,theme.colors array in ui config,Use undefined colors,"ui: { theme: { colors: ['primary', 'tertiary'] } }","<UButton color=""tertiary""> without config",Medium,https://ui.nuxt.com/docs/getting-started/theme/design-system
13,Forms,Use UForm with schema validation,UForm supports Zod Yup Joi Valibot schemas,:schema prop with validation schema,Manual form validation,"<UForm :schema=""schema"" :state=""state"">",Manual @blur validation,High,https://ui.nuxt.com/docs/components/form
14,Forms,Use UFormField for field wrapper,Provides label error message and validation display,UFormField with name prop,Manual error handling,"<UFormField name=""email"" label=""Email"">",<div><label>Email</label><UInput/><span>error</span></div>,Medium,https://ui.nuxt.com/docs/components/form-field
15,Forms,Handle form submit with @submit,UForm emits submit event with validated data,@submit handler on UForm,@click on submit button,"<UForm @submit=""onSubmit"">","<UButton @click=""onSubmit"">",Medium,https://ui.nuxt.com/docs/components/form
16,Forms,Use validateOn prop for validation timing,Control when validation triggers (blur change input),validateOn="['blur']" for performance,Always validate on input,"<UForm :validateOn=""['blur', 'change']"">","<UForm> (validates on every keystroke)",Low,https://ui.nuxt.com/docs/components/form
17,Overlays,Use v-model:open for overlay control,Modal Slideover Drawer use v-model:open,v-model:open for controlled state,Manual show/hide logic,"<UModal v-model:open=""isOpen"">",<UModal v-if="isOpen">,Medium,https://ui.nuxt.com/docs/components/modal
18,Overlays,Use useOverlay composable for programmatic overlays,Open overlays programmatically without template refs,useOverlay().open(MyModal),Template ref and manual control,"const overlay = useOverlay(); overlay.open(MyModal, { props })","const modal = ref(); modal.value.open()",Medium,https://ui.nuxt.com/docs/components/modal
19,Overlays,Use title and description props,Built-in header support for overlays,title="Confirm" description="Are you sure?",Manual header content,"<UModal title=""Confirm"" description=""Are you sure?"">","<UModal><template #header><h2>Confirm</h2></template>",Low,https://ui.nuxt.com/docs/components/modal
20,Dashboard,Use UDashboardSidebar for navigation,Provides collapsible resizable sidebar with mobile support,UDashboardSidebar with header default footer slots,Custom sidebar implementation,<UDashboardSidebar><template #header>...</template></UDashboardSidebar>,<aside class="w-64 border-r">,Medium,https://ui.nuxt.com/docs/components/dashboard-sidebar
21,Dashboard,Use UDashboardGroup for layout,Wraps dashboard components with sidebar state management,UDashboardGroup > UDashboardSidebar + UDashboardPanel,Manual layout flex containers,<UDashboardGroup><UDashboardSidebar/><UDashboardPanel/></UDashboardGroup>,"<div class=""flex""><aside/><main/></div>",Medium,https://ui.nuxt.com/docs/components/dashboard-group
22,Dashboard,Use UDashboardNavbar for top navigation,Responsive navbar with mobile menu support,UDashboardNavbar in dashboard layout,Custom navbar implementation,<UDashboardNavbar :links="navLinks"/>,<nav class="border-b">,Low,https://ui.nuxt.com/docs/components/dashboard-navbar
23,Tables,Use UTable with data and columns props,Powered by TanStack Table with built-in features,:data and :columns props,Manual table markup,"<UTable :data=""users"" :columns=""columns""/>","<table><tr v-for=""user in users"">",High,https://ui.nuxt.com/docs/components/table
24,Tables,Define columns with accessorKey,Column definitions use accessorKey for data binding,accessorKey: 'email' in column def,String column names only,"{ accessorKey: 'email', header: 'Email' }","['name', 'email']",Medium,https://ui.nuxt.com/docs/components/table
25,Tables,Use cell slot for custom rendering,Customize cell content with scoped slots,#cell-columnName slot,Override entire table,<template #cell-status="{ row }">,Manual column render function,Medium,https://ui.nuxt.com/docs/components/table
26,Tables,Enable sorting with sortable column option,Add sortable: true to column definition,sortable: true in column,Manual sort implementation,"{ accessorKey: 'name', sortable: true }",@click="sortBy('name')",Low,https://ui.nuxt.com/docs/components/table
27,Navigation,Use UNavigationMenu for nav links,Horizontal or vertical navigation with dropdown support,UNavigationMenu with items array,Manual nav with v-for,"<UNavigationMenu :items=""navItems""/>","<nav><a v-for=""item in items"">",Medium,https://ui.nuxt.com/docs/components/navigation-menu
28,Navigation,Use UBreadcrumb for page hierarchy,Automatic breadcrumb with NuxtLink support,:items array with label and to,Manual breadcrumb links,"<UBreadcrumb :items=""breadcrumbs""/>","<nav><span v-for=""crumb in crumbs"">",Low,https://ui.nuxt.com/docs/components/breadcrumb
29,Navigation,Use UTabs for tabbed content,Tab navigation with content panels,UTabs with items containing slot content,Manual tab state,"<UTabs :items=""tabs""/>","<div><button @click=""tab=1"">",Medium,https://ui.nuxt.com/docs/components/tabs
30,Feedback,Use useToast for notifications,Composable for toast notifications,useToast().add({ title description }),Alert components for toasts,"const toast = useToast(); toast.add({ title: 'Saved' })",<UAlert v-if="showSuccess">,High,https://ui.nuxt.com/docs/components/toast
31,Feedback,Use UAlert for inline messages,Static alert messages with icon and actions,UAlert with title description color,Toast for static messages,"<UAlert title=""Warning"" color=""warning""/>",useToast for inline alerts,Medium,https://ui.nuxt.com/docs/components/alert
32,Feedback,Use USkeleton for loading states,Placeholder content during data loading,USkeleton with appropriate size,Spinner for content loading,<USkeleton class="h-4 w-32"/>,<UIcon name="lucide:loader" class="animate-spin"/>,Low,https://ui.nuxt.com/docs/components/skeleton
33,Color Mode,Use UColorModeButton for theme toggle,Built-in light/dark mode toggle button,UColorModeButton component,Manual color mode logic,<UColorModeButton/>,"<button @click=""toggleColorMode"">",Low,https://ui.nuxt.com/docs/components/color-mode-button
34,Color Mode,Use UColorModeSelect for theme picker,Dropdown to select system light or dark mode,UColorModeSelect component,Custom select for theme,<UColorModeSelect/>,"<USelect v-model=""colorMode"" :items=""modes""/>",Low,https://ui.nuxt.com/docs/components/color-mode-select
35,Customization,Use ui prop for component styling,Override component styles via ui prop,ui prop with slot class overrides,Global CSS overrides,"<UButton :ui=""{ base: 'rounded-full' }""/>",<UButton class="!rounded-full"/>,Medium,https://ui.nuxt.com/docs/getting-started/theme/components
36,Customization,Configure default variants in nuxt.config,Set default color and size for all components,theme.defaultVariants in ui config,Repeat props on every component,"ui: { theme: { defaultVariants: { color: 'neutral' } } }","<UButton color=""neutral""> everywhere",Medium,https://ui.nuxt.com/docs/getting-started/installation/nuxt
37,Customization,Use app.config.ts for theme overrides,Runtime theme customization,defineAppConfig with ui key,nuxt.config for runtime values,"defineAppConfig({ ui: { button: { defaultVariants: { size: 'sm' } } } })","nuxt.config ui.button.size: 'sm'",Medium,https://ui.nuxt.com/docs/getting-started/theme/components
38,Performance,Enable component detection,Tree-shake unused component CSS,experimental.componentDetection: true,Include all component CSS,"ui: { experimental: { componentDetection: true } }","ui: {} (includes all CSS)",Low,https://ui.nuxt.com/docs/getting-started/installation/nuxt
39,Performance,Use UTable virtualize for large data,Enable virtualization for 1000+ rows,:virtualize prop on UTable,Render all rows,"<UTable :data=""largeData"" virtualize/>","<UTable :data=""largeData""/>",Medium,https://ui.nuxt.com/docs/components/table
40,Accessibility,Use semantic component props,Components have built-in ARIA support,Use title description label props,Skip accessibility props,"<UModal title=""Settings"">","<UModal><h2>Settings</h2>",Medium,https://ui.nuxt.com/docs/components/modal
41,Accessibility,Use UFormField for form accessibility,Automatic label-input association,UFormField wraps inputs,Manual id and for attributes,"<UFormField label=""Email""><UInput/></UFormField>","<label for=""email"">Email</label><UInput id=""email""/>",High,https://ui.nuxt.com/docs/components/form-field
42,Content,Use UContentToc for table of contents,Automatic TOC with active heading highlight,UContentToc with :links,Manual TOC implementation,"<UContentToc :links=""toc""/>","<nav><a v-for=""heading in headings"">",Low,https://ui.nuxt.com/docs/components/content-toc
43,Content,Use UContentSearch for docs search,Command palette for documentation search,UContentSearch with Nuxt Content,Custom search implementation,<UContentSearch/>,<UCommandPalette :groups="searchResults"/>,Low,https://ui.nuxt.com/docs/components/content-search
44,AI/Chat,Use UChatMessages for chat UI,Designed for Vercel AI SDK integration,UChatMessages with messages array,Custom chat message list,"<UChatMessages :messages=""messages""/>","<div v-for=""msg in messages"">",Medium,https://ui.nuxt.com/docs/components/chat-messages
45,AI/Chat,Use UChatPrompt for input,Enhanced textarea for AI prompts,UChatPrompt with v-model,Basic textarea,<UChatPrompt v-model="prompt"/>,<UTextarea v-model="prompt"/>,Medium,https://ui.nuxt.com/docs/components/chat-prompt
46,Editor,Use UEditor for rich text,TipTap-based editor with toolbar support,UEditor with v-model:content,Custom TipTap setup,"<UEditor v-model:content=""content""/>",Manual TipTap initialization,Medium,https://ui.nuxt.com/docs/components/editor
47,Links,Use to prop for navigation,UButton and ULink support NuxtLink to prop,to="/dashboard" for internal links,href for internal navigation,"<UButton to=""/dashboard"">","<UButton href=""/dashboard"">",Medium,https://ui.nuxt.com/docs/components/button
48,Links,Use external prop for outside links,Explicitly mark external links,target="_blank" with external URLs,Forget rel="noopener","<UButton to=""https://example.com"" target=""_blank"">","<UButton href=""https://..."">",Low,https://ui.nuxt.com/docs/components/link
49,Loading,Use loadingAuto on buttons,Automatic loading state from @click promise,loadingAuto prop on UButton,Manual loading state,"<UButton loadingAuto @click=""async () => await save()"">","<UButton :loading=""isLoading"" @click=""save"">",Low,https://ui.nuxt.com/docs/components/button
50,Loading,Use UForm loadingAuto,Auto-disable form during submit,loadingAuto on UForm (default true),Manual form disabled state,"<UForm @submit=""handleSubmit"">","<UForm :disabled=""isSubmitting"">",Low,https://ui.nuxt.com/docs/components/form


path: assets/data/stacks/nuxtjs.csv
content: No,Category,Guideline,Description,Do,Don't,Code Good,Code Bad,Severity,Docs URL
1,Routing,Use file-based routing,Create routes by adding files in pages directory,pages/ directory with index.vue,Manual route configuration,pages/dashboard/index.vue,Custom router setup,Medium,https://nuxt.com/docs/getting-started/routing
2,Routing,Use dynamic route parameters,Create dynamic routes with bracket syntax,[id].vue for dynamic params,Hardcoded routes for dynamic content,pages/posts/[id].vue,pages/posts/post1.vue,Medium,https://nuxt.com/docs/getting-started/routing
3,Routing,Use catch-all routes,Handle multiple path segments with [...slug],[...slug].vue for catch-all,Multiple nested dynamic routes,pages/[...slug].vue,pages/[a]/[b]/[c].vue,Low,https://nuxt.com/docs/getting-started/routing
4,Routing,Define page metadata with definePageMeta,Set page-level configuration and middleware,definePageMeta for layout middleware title,Manual route meta configuration,"definePageMeta({ layout: 'admin', middleware: 'auth' })",router.beforeEach for page config,High,https://nuxt.com/docs/api/utils/define-page-meta
5,Routing,Use validate for route params,Validate dynamic route parameters before rendering,validate function in definePageMeta,Manual validation in setup,"definePageMeta({ validate: (route) => /^\d+$/.test(route.params.id) })",if (!valid) navigateTo('/404'),Medium,https://nuxt.com/docs/api/utils/define-page-meta
6,Rendering,Use SSR by default,Server-side rendering is enabled by default,Keep ssr: true (default),Disable SSR unnecessarily,ssr: true (default),ssr: false for all pages,High,https://nuxt.com/docs/guide/concepts/rendering
7,Rendering,Use .client suffix for client-only components,Mark components to render only on client,ComponentName.client.vue suffix,v-if with process.client check,Comments.client.vue,<div v-if="process.client"><Comments/></div>,Medium,https://nuxt.com/docs/guide/directory-structure/components
8,Rendering,Use .server suffix for server-only components,Mark components to render only on server,ComponentName.server.vue suffix,Manual server check,HeavyMarkdown.server.vue,v-if="process.server",Low,https://nuxt.com/docs/guide/directory-structure/components
9,DataFetching,Use useFetch for simple data fetching,Wrapper around useAsyncData for URL fetching,useFetch for API calls,$fetch in onMounted,"const { data } = await useFetch('/api/posts')","onMounted(async () => { data.value = await $fetch('/api/posts') })",High,https://nuxt.com/docs/api/composables/use-fetch
10,DataFetching,Use useAsyncData for complex fetching,Fine-grained control over async data,useAsyncData for CMS or custom fetching,useFetch for non-URL data sources,"const { data } = await useAsyncData('posts', () => cms.getPosts())","const { data } = await useFetch(() => cms.getPosts())",Medium,https://nuxt.com/docs/api/composables/use-async-data
11,DataFetching,Use $fetch for non-reactive requests,$fetch for event handlers and non-component code,$fetch in event handlers or server routes,useFetch in click handlers,"async function submit() { await $fetch('/api/submit', { method: 'POST' }) }","async function submit() { await useFetch('/api/submit') }",High,https://nuxt.com/docs/api/utils/dollarfetch
12,DataFetching,Use lazy option for non-blocking fetch,Defer data fetching for better initial load,lazy: true for below-fold content,Blocking fetch for non-critical data,"useFetch('/api/comments', { lazy: true })",await useFetch('/api/comments') for footer,Medium,https://nuxt.com/docs/api/composables/use-fetch
13,DataFetching,Use server option to control fetch location,Choose where data is fetched,server: false for client-only data,Server fetch for user-specific client data,"useFetch('/api/user-preferences', { server: false })",useFetch for localStorage-dependent data,Medium,https://nuxt.com/docs/api/composables/use-fetch
14,DataFetching,Use pick to reduce payload size,Select only needed fields from response,pick option for large responses,Fetching entire objects when few fields needed,"useFetch('/api/user', { pick: ['id', 'name'] })",useFetch('/api/user') then destructure,Low,https://nuxt.com/docs/api/composables/use-fetch
15,DataFetching,Use transform for data manipulation,Transform data before storing in state,transform option for data shaping,Manual transformation after fetch,"useFetch('/api/posts', { transform: (posts) => posts.map(p => p.title) })",const titles = data.value.map(p => p.title),Low,https://nuxt.com/docs/api/composables/use-fetch
16,DataFetching,Handle loading and error states,Always handle pending and error states,Check status pending error refs,Ignoring loading states,"<div v-if=""status === 'pending'"">Loading...</div>",No loading indicator,High,https://nuxt.com/docs/getting-started/data-fetching
17,Lifecycle,Avoid side effects in script setup root,Move side effects to lifecycle hooks,Side effects in onMounted,setInterval in root script setup,"onMounted(() => { interval = setInterval(...) })","<script setup>setInterval(...)</script>",High,https://nuxt.com/docs/guide/concepts/nuxt-lifecycle
18,Lifecycle,Use onMounted for DOM access,Access DOM only after component is mounted,onMounted for DOM manipulation,Direct DOM access in setup,"onMounted(() => { document.getElementById('el') })","<script setup>document.getElementById('el')</script>",High,https://nuxt.com/docs/api/composables/on-mounted
19,Lifecycle,Use nextTick for post-render access,Wait for DOM updates before accessing elements,await nextTick() after state changes,Immediate DOM access after state change,"count.value++; await nextTick(); el.value.focus()","count.value++; el.value.focus()",Medium,https://nuxt.com/docs/api/utils/next-tick
20,Lifecycle,Use onPrehydrate for pre-hydration logic,Run code before Nuxt hydrates the page,onPrehydrate for client setup,onMounted for hydration-critical code,"onPrehydrate(() => { console.log(window) })",onMounted for pre-hydration needs,Low,https://nuxt.com/docs/api/composables/on-prehydrate
21,Server,Use server/api for API routes,Create API endpoints in server/api directory,server/api/users.ts for /api/users,Manual Express setup,server/api/hello.ts -> /api/hello,app.get('/api/hello'),High,https://nuxt.com/docs/guide/directory-structure/server
22,Server,Use defineEventHandler for handlers,Define server route handlers,defineEventHandler for all handlers,export default function,"export default defineEventHandler((event) => { return { hello: 'world' } })","export default function(req, res) {}",High,https://nuxt.com/docs/guide/directory-structure/server
23,Server,Use server/routes for non-api routes,Routes without /api prefix,server/routes for custom paths,server/api for non-api routes,server/routes/sitemap.xml.ts,server/api/sitemap.xml.ts,Medium,https://nuxt.com/docs/guide/directory-structure/server
24,Server,Use getQuery and readBody for input,Access query params and request body,getQuery(event) readBody(event),Direct event access,"const { id } = getQuery(event)",event.node.req.query,Medium,https://nuxt.com/docs/guide/directory-structure/server
25,Server,Validate server input,Always validate input in server handlers,Zod or similar for validation,Trust client input,"const body = await readBody(event); schema.parse(body)",const body = await readBody(event),High,https://nuxt.com/docs/guide/directory-structure/server
26,State,Use useState for shared reactive state,SSR-friendly shared state across components,useState for cross-component state,ref for shared state,"const count = useState('count', () => 0)",const count = ref(0) in composable,High,https://nuxt.com/docs/api/composables/use-state
27,State,Use unique keys for useState,Prevent state conflicts with unique keys,Descriptive unique keys for each state,Generic or duplicate keys,"useState('user-preferences', () => ({}))",useState('data') in multiple places,Medium,https://nuxt.com/docs/api/composables/use-state
28,State,Use Pinia for complex state,Pinia for advanced state management,@pinia/nuxt for complex apps,Custom state management,useMainStore() with Pinia,Custom reactive store implementation,Medium,https://nuxt.com/docs/getting-started/state-management
29,State,Use callOnce for one-time async operations,Ensure async operations run only once,callOnce for store initialization,Direct await in component,"await callOnce(store.fetch)",await store.fetch() on every render,Medium,https://nuxt.com/docs/api/utils/call-once
30,SEO,Use useSeoMeta for SEO tags,Type-safe SEO meta tag management,useSeoMeta for meta tags,useHead for simple meta,"useSeoMeta({ title: 'Home', ogTitle: 'Home', description: '...' })","useHead({ meta: [{ name: 'description', content: '...' }] })",High,https://nuxt.com/docs/api/composables/use-seo-meta
31,SEO,Use reactive values in useSeoMeta,Dynamic SEO tags with refs or getters,Computed getters for dynamic values,Static values for dynamic content,"useSeoMeta({ title: () => post.value.title })","useSeoMeta({ title: post.value.title })",Medium,https://nuxt.com/docs/api/composables/use-seo-meta
32,SEO,Use useHead for non-meta head elements,Scripts styles links in head,useHead for scripts and links,useSeoMeta for scripts,"useHead({ script: [{ src: '/analytics.js' }] })","useSeoMeta({ script: '...' })",Medium,https://nuxt.com/docs/api/composables/use-head
33,SEO,Include OpenGraph tags,Add OG tags for social sharing,ogTitle ogDescription ogImage,Missing social preview,"useSeoMeta({ ogImage: '/og.png', twitterCard: 'summary_large_image' })",No OG configuration,Medium,https://nuxt.com/docs/api/composables/use-seo-meta
34,Middleware,Use defineNuxtRouteMiddleware,Define route middleware properly,defineNuxtRouteMiddleware wrapper,export default function,"export default defineNuxtRouteMiddleware((to, from) => {})","export default function(to, from) {}",High,https://nuxt.com/docs/guide/directory-structure/middleware
35,Middleware,Use navigateTo for redirects,Redirect in middleware with navigateTo,return navigateTo('/login'),router.push in middleware,"if (!auth) return navigateTo('/login')","if (!auth) router.push('/login')",High,https://nuxt.com/docs/api/utils/navigate-to
36,Middleware,Reference middleware in definePageMeta,Apply middleware to specific pages,middleware array in definePageMeta,Global middleware for page-specific,definePageMeta({ middleware: ['auth'] }),Global auth check for one page,Medium,https://nuxt.com/docs/guide/directory-structure/middleware
37,Middleware,Use .global suffix for global middleware,Apply middleware to all routes,auth.global.ts for app-wide auth,Manual middleware on every page,middleware/auth.global.ts,middleware: ['auth'] on every page,Medium,https://nuxt.com/docs/guide/directory-structure/middleware
38,ErrorHandling,Use createError for errors,Create errors with proper status codes,createError with statusCode,throw new Error,"throw createError({ statusCode: 404, statusMessage: 'Not Found' })",throw new Error('Not Found'),High,https://nuxt.com/docs/api/utils/create-error
39,ErrorHandling,Use NuxtErrorBoundary for local errors,Handle errors within component subtree,NuxtErrorBoundary for component errors,Global error page for local errors,"<NuxtErrorBoundary @error=""log""><template #error=""{ error }"">",error.vue for component errors,Medium,https://nuxt.com/docs/getting-started/error-handling
40,ErrorHandling,Use clearError to recover from errors,Clear error state and optionally redirect,clearError({ redirect: '/' }),Manual error state reset,clearError({ redirect: '/home' }),error.value = null,Medium,https://nuxt.com/docs/api/utils/clear-error
41,ErrorHandling,Use short statusMessage,Keep statusMessage brief for security,Short generic messages,Detailed error info in statusMessage,"createError({ statusCode: 400, statusMessage: 'Bad Request' })","createError({ statusMessage: 'Invalid user ID: 123' })",High,https://nuxt.com/docs/getting-started/error-handling
42,Link,Use NuxtLink for internal navigation,Client-side navigation with prefetching,<NuxtLink to> for internal links,<a href> for internal links,<NuxtLink to="/about">About</NuxtLink>,<a href="/about">About</a>,High,https://nuxt.com/docs/api/components/nuxt-link
43,Link,Configure prefetch behavior,Control when prefetching occurs,prefetchOn for interaction-based,Default prefetch for low-priority,"<NuxtLink prefetch-on=""interaction"">",Always default prefetch,Low,https://nuxt.com/docs/api/components/nuxt-link
44,Link,Use useRouter for programmatic navigation,Navigate programmatically,useRouter().push() for navigation,Direct window.location,"const router = useRouter(); router.push('/dashboard')",window.location.href = '/dashboard',Medium,https://nuxt.com/docs/api/composables/use-router
45,Link,Use navigateTo in composables,Navigate outside components,navigateTo() in middleware or plugins,useRouter in non-component code,return navigateTo('/login'),router.push in middleware,Medium,https://nuxt.com/docs/api/utils/navigate-to
46,AutoImports,Leverage auto-imports,Use auto-imported composables directly,Direct use of ref computed useFetch,Manual imports for Nuxt composables,"const count = ref(0)","import { ref } from 'vue'; const count = ref(0)",Medium,https://nuxt.com/docs/guide/concepts/auto-imports
47,AutoImports,Use #imports for explicit imports,Explicit imports when needed,#imports for clarity or disabled auto-imports,"import from 'vue' when auto-import enabled","import { ref } from '#imports'","import { ref } from 'vue'",Low,https://nuxt.com/docs/guide/concepts/auto-imports
48,AutoImports,Configure third-party auto-imports,Add external package auto-imports,imports.presets in nuxt.config,Manual imports everywhere,"imports: { presets: [{ from: 'vue-i18n', imports: ['useI18n'] }] }",import { useI18n } everywhere,Low,https://nuxt.com/docs/guide/concepts/auto-imports
49,Plugins,Use defineNuxtPlugin,Define plugins properly,defineNuxtPlugin wrapper,export default function,"export default defineNuxtPlugin((nuxtApp) => {})","export default function(ctx) {}",High,https://nuxt.com/docs/guide/directory-structure/plugins
50,Plugins,Use provide for injection,Provide helpers across app,return { provide: {} } for type safety,nuxtApp.provide without types,"return { provide: { hello: (name) => `Hello ${name}!` } }","nuxtApp.provide('hello', fn)",Medium,https://nuxt.com/docs/guide/directory-structure/plugins
51,Plugins,Use .client or .server suffix,Control plugin execution environment,plugin.client.ts for client-only,if (process.client) checks,analytics.client.ts,"if (process.client) { // analytics }",Medium,https://nuxt.com/docs/guide/directory-structure/plugins
52,Environment,Use runtimeConfig for env vars,Access environment variables safely,runtimeConfig in nuxt.config,process.env directly,"runtimeConfig: { apiSecret: '', public: { apiBase: '' } }",process.env.API_SECRET in components,High,https://nuxt.com/docs/guide/going-further/runtime-config
53,Environment,Use NUXT_ prefix for env override,Override config with environment variables,NUXT_API_SECRET NUXT_PUBLIC_API_BASE,Custom env var names,NUXT_PUBLIC_API_BASE=https://api.example.com,API_BASE=https://api.example.com,High,https://nuxt.com/docs/guide/going-further/runtime-config
54,Environment,Access public config with useRuntimeConfig,Get public config in components,useRuntimeConfig().public,Direct process.env access,const config = useRuntimeConfig(); config.public.apiBase,process.env.NUXT_PUBLIC_API_BASE,High,https://nuxt.com/docs/api/composables/use-runtime-config
55,Environment,Keep secrets in private config,Server-only secrets in runtimeConfig root,runtimeConfig.apiSecret (server only),Secrets in public config,runtimeConfig: { dbPassword: '' },runtimeConfig: { public: { dbPassword: '' } },High,https://nuxt.com/docs/guide/going-further/runtime-config
56,Performance,Use Lazy prefix for code splitting,Lazy load components with Lazy prefix,<LazyComponent> for below-fold,Eager load all components,<LazyMountainsList v-if="show"/>,<MountainsList/> for hidden content,Medium,https://nuxt.com/docs/guide/directory-structure/components
57,Performance,Use useLazyFetch for non-blocking data,Alias for useFetch with lazy: true,useLazyFetch for secondary data,useFetch for all requests,"const { data } = useLazyFetch('/api/comments')",await useFetch for comments section,Medium,https://nuxt.com/docs/api/composables/use-lazy-fetch
58,Performance,Use lazy hydration for interactivity,Delay component hydration until needed,LazyComponent with hydration strategy,Immediate hydration for all,<LazyModal hydrate-on-visible/>,<Modal/> in footer,Low,https://nuxt.com/docs/guide/going-further/experimental-features


path: assets/data/stacks/react-native.csv
content: No,Category,Guideline,Description,Do,Don't,Code Good,Code Bad,Severity,Docs URL
1,Components,Use functional components,Hooks-based components are standard,Functional components with hooks,Class components,const App = () => { },class App extends Component,Medium,https://reactnative.dev/docs/intro-react
2,Components,Keep components small,Single responsibility principle,Split into smaller components,Large monolithic components,<Header /><Content /><Footer />,500+ line component,Medium,
3,Components,Use TypeScript,Type safety for props and state,TypeScript for new projects,JavaScript without types,const Button: FC<Props> = () => { },const Button = (props) => { },Medium,
4,Components,Colocate component files,Keep related files together,Component folder with styles,Flat structure,components/Button/index.tsx styles.ts,components/Button.tsx styles/button.ts,Low,
5,Styling,Use StyleSheet.create,Optimized style objects,StyleSheet for all styles,Inline style objects,StyleSheet.create({ container: {} }),style={{ margin: 10 }},High,https://reactnative.dev/docs/stylesheet
6,Styling,Avoid inline styles,Prevent object recreation,Styles in StyleSheet,Inline style objects in render,style={styles.container},"style={{ margin: 10, padding: 5 }}",Medium,
7,Styling,Use flexbox for layout,React Native uses flexbox,flexDirection alignItems justifyContent,Absolute positioning everywhere,flexDirection: 'row',position: 'absolute' everywhere,Medium,https://reactnative.dev/docs/flexbox
8,Styling,Handle platform differences,Platform-specific styles,Platform.select or .ios/.android files,Same styles for both platforms,"Platform.select({ ios: {}, android: {} })",Hardcoded iOS values,Medium,https://reactnative.dev/docs/platform-specific-code
9,Styling,Use responsive dimensions,Scale for different screens,Dimensions or useWindowDimensions,Fixed pixel values,useWindowDimensions(),width: 375,Medium,
10,Navigation,Use React Navigation,Standard navigation library,React Navigation for routing,Manual navigation management,createStackNavigator(),Custom navigation state,Medium,https://reactnavigation.org/
11,Navigation,Type navigation params,Type-safe navigation,Typed navigation props,Untyped navigation,"navigation.navigate<RootStackParamList>('Home', { id })","navigation.navigate('Home', { id })",Medium,
12,Navigation,Use deep linking,Support URL-based navigation,Configure linking prop,No deep link support,linking: { prefixes: [] },No linking configuration,Medium,https://reactnavigation.org/docs/deep-linking/
13,Navigation,Handle back button,Android back button handling,useFocusEffect with BackHandler,Ignore back button,BackHandler.addEventListener,No back handler,High,
14,State,Use useState for local state,Simple component state,useState for UI state,Class component state,"const [count, setCount] = useState(0)",this.state = { count: 0 },Medium,
15,State,Use useReducer for complex state,Complex state logic,useReducer for related state,Multiple useState for related values,useReducer(reducer initialState),5+ useState calls,Medium,
16,State,Use context sparingly,Context for global state,Context for theme auth locale,Context for frequently changing data,ThemeContext for app theme,Context for list item data,Medium,
17,State,Consider Zustand or Redux,External state management,Zustand for simple Redux for complex,useState for global state,create((set) => ({ })),Prop drilling global state,Medium,
18,Lists,Use FlatList for long lists,Virtualized list rendering,FlatList for 50+ items,ScrollView with map,<FlatList data={items} />,<ScrollView>{items.map()}</ScrollView>,High,https://reactnative.dev/docs/flatlist
19,Lists,Provide keyExtractor,Unique keys for list items,keyExtractor with stable ID,Index as key,keyExtractor={(item) => item.id},"keyExtractor={(_, index) => index}",High,
20,Lists,Optimize renderItem,Memoize list item components,React.memo for list items,Inline render function,renderItem={({ item }) => <MemoizedItem item={item} />},renderItem={({ item }) => <View>...</View>},High,
21,Lists,Use getItemLayout for fixed height,Skip measurement for performance,getItemLayout when height known,Dynamic measurement for fixed items,"getItemLayout={(_, index) => ({ length: 50, offset: 50 * index, index })}",No getItemLayout for fixed height,Medium,
22,Lists,Implement windowSize,Control render window,Smaller windowSize for memory,Default windowSize for large lists,windowSize={5},windowSize={21} for huge lists,Medium,
23,Performance,Use React.memo,Prevent unnecessary re-renders,memo for pure components,No memoization,export default memo(MyComponent),export default MyComponent,Medium,
24,Performance,Use useCallback for handlers,Stable function references,useCallback for props,New function on every render,"useCallback(() => {}, [deps])",() => handlePress(),Medium,
25,Performance,Use useMemo for expensive ops,Cache expensive calculations,useMemo for heavy computations,Recalculate every render,"useMemo(() => expensive(), [deps])",const result = expensive(),Medium,
26,Performance,Avoid anonymous functions in JSX,Prevent re-renders,Named handlers or useCallback,Inline arrow functions,onPress={handlePress},onPress={() => doSomething()},Medium,
27,Performance,Use Hermes engine,Improved startup and memory,Enable Hermes in build,JavaScriptCore for new projects,hermes_enabled: true,hermes_enabled: false,Medium,https://reactnative.dev/docs/hermes
28,Images,Use expo-image,Modern performant image component for React Native,"Use expo-image for caching, blurring, and performance",Use default Image for heavy lists or unmaintained libraries,<Image source={url} cachePolicy='memory-disk' /> (expo-image),<FastImage source={url} />,Medium,https://docs.expo.dev/versions/latest/sdk/image/
29,Images,Specify image dimensions,Prevent layout shifts,width and height for remote images,No dimensions for network images,<Image style={{ width: 100 height: 100 }} />,<Image source={{ uri }} /> no size,High,
30,Images,Use resizeMode,Control image scaling,resizeMode cover contain,Stretch images,"resizeMode=""cover""",No resizeMode,Low,
31,Forms,Use controlled inputs,State-controlled form fields,value + onChangeText,Uncontrolled inputs,<TextInput value={text} onChangeText={setText} />,<TextInput defaultValue={text} />,Medium,
32,Forms,Handle keyboard,Manage keyboard visibility,KeyboardAvoidingView,Content hidden by keyboard,"<KeyboardAvoidingView behavior=""padding"">",No keyboard handling,High,https://reactnative.dev/docs/keyboardavoidingview
33,Forms,Use proper keyboard types,Appropriate keyboard for input,keyboardType for input type,Default keyboard for all,"keyboardType=""email-address""","keyboardType=""default"" for email",Low,
34,Touch,Use Pressable,Modern touch handling,Pressable for touch interactions,TouchableOpacity for new code,<Pressable onPress={} />,<TouchableOpacity onPress={} />,Low,https://reactnative.dev/docs/pressable
35,Touch,Provide touch feedback,Visual feedback on press,Ripple or opacity change,No feedback on press,android_ripple={{ color: 'gray' }},No press feedback,Medium,
36,Touch,Set hitSlop for small targets,Increase touch area,hitSlop for icons and small buttons,Tiny touch targets,hitSlop={{ top: 10 bottom: 10 }},44x44 with no hitSlop,Medium,
37,Animation,Use Reanimated,High-performance animations,react-native-reanimated,Animated API for complex,useSharedValue useAnimatedStyle,Animated.timing for gesture,Medium,https://docs.swmansion.com/react-native-reanimated/
38,Animation,Run on UI thread,worklets for smooth animation,Run animations on UI thread,JS thread animations,runOnUI(() => {}),Animated on JS thread,High,
39,Animation,Use gesture handler,Native gesture recognition,react-native-gesture-handler,JS-based gesture handling,<GestureDetector>,<View onTouchMove={} />,Medium,https://docs.swmansion.com/react-native-gesture-handler/
40,Async,Handle loading states,Show loading indicators,ActivityIndicator during load,Empty screen during load,{isLoading ? <ActivityIndicator /> : <Content />},No loading state,Medium,
41,Async,Handle errors gracefully,Error boundaries and fallbacks,Error UI for failed requests,Crash on error,{error ? <ErrorView /> : <Content />},No error handling,High,
42,Async,Cancel async operations,Cleanup on unmount,AbortController or cleanup,Memory leaks from async,useEffect cleanup,No cleanup for subscriptions,High,
43,Accessibility,Add accessibility labels,Describe UI elements,accessibilityLabel for all interactive,Missing labels,"accessibilityLabel=""Submit form""",<Pressable> without label,High,https://reactnative.dev/docs/accessibility
44,Accessibility,Use accessibility roles,Semantic meaning,accessibilityRole for elements,Wrong roles,"accessibilityRole=""button""",No role for button,Medium,
45,Accessibility,Support screen readers,Test with TalkBack/VoiceOver,Test with screen readers,Skip accessibility testing,Regular TalkBack testing,No screen reader testing,High,
46,Testing,Use React Native Testing Library,Component testing,render and fireEvent,Enzyme or manual testing,render(<Component />),shallow(<Component />),Medium,https://callstack.github.io/react-native-testing-library/
47,Testing,Test on real devices,Real device behavior,Test on iOS and Android devices,Simulator only,Device testing in CI,Simulator only testing,High,
48,Testing,Use Detox for E2E,End-to-end testing,Detox for critical flows,Manual E2E testing,detox test,Manual testing only,Medium,https://wix.github.io/Detox/
49,Native,Use native modules carefully,Bridge has overhead,Batch native calls,Frequent bridge crossing,Batch updates,Call native on every keystroke,High,
50,Native,Use Expo when possible,Simplified development,Expo for standard features,Bare RN for simple apps,expo install package,react-native link package,Low,https://docs.expo.dev/
51,Native,Handle permissions,Request permissions properly,Check and request permissions,Assume permissions granted,PermissionsAndroid.request(),Access without permission check,High,https://reactnative.dev/docs/permissionsandroid


path: assets/data/stacks/react.csv
content: No,Category,Guideline,Description,Do,Don't,Code Good,Code Bad,Severity,Docs URL
1,State,Use useState for local state,Simple component state should use useState hook,useState for form inputs toggles counters,Class components this.state,"const [count, setCount] = useState(0)",this.state = { count: 0 },Medium,https://react.dev/reference/react/useState
2,State,Lift state up when needed,Share state between siblings by lifting to parent,Lift shared state to common ancestor,Prop drilling through many levels,Parent holds state passes down,Deep prop chains,Medium,https://react.dev/learn/sharing-state-between-components
3,State,Use useReducer for complex state,Complex state logic benefits from reducer pattern,useReducer for state with multiple sub-values,Multiple useState for related values,useReducer with action types,5+ useState calls that update together,Medium,https://react.dev/reference/react/useReducer
4,State,Avoid unnecessary state,Derive values from existing state when possible,Compute derived values in render,Store derivable values in state,const total = items.reduce(...),"const [total, setTotal] = useState(0)",High,https://react.dev/learn/choosing-the-state-structure
5,State,Initialize state lazily,Use function form for expensive initial state,useState(() => computeExpensive()),useState(computeExpensive()),useState(() => JSON.parse(data)),useState(JSON.parse(data)),Medium,https://react.dev/reference/react/useState#avoiding-recreating-the-initial-state
6,Effects,Clean up effects,Return cleanup function for subscriptions timers,Return cleanup function in useEffect,No cleanup for subscriptions,useEffect(() => { sub(); return unsub; }),useEffect(() => { subscribe(); }),High,https://react.dev/reference/react/useEffect#connecting-to-an-external-system
7,Effects,Specify dependencies correctly,Include all values used inside effect in deps array,All referenced values in dependency array,Empty deps with external references,[value] when using value in effect,[] when using props/state in effect,High,https://react.dev/reference/react/useEffect#specifying-reactive-dependencies
8,Effects,Avoid unnecessary effects,Don't use effects for transforming data or events,Transform data during render handle events directly,useEffect for derived state or event handling,const filtered = items.filter(...),useEffect(() => setFiltered(items.filter(...))),High,https://react.dev/learn/you-might-not-need-an-effect
9,Effects,Use refs for non-reactive values,Store values that don't trigger re-renders in refs,useRef for interval IDs DOM elements,useState for values that don't need render,const intervalRef = useRef(null),"const [intervalId, setIntervalId] = useState()",Medium,https://react.dev/reference/react/useRef
10,Rendering,Use keys properly,Stable unique keys for list items,Use stable IDs as keys,Array index as key for dynamic lists,key={item.id},key={index},High,https://react.dev/learn/rendering-lists#keeping-list-items-in-order-with-key
11,Rendering,Memoize expensive calculations,Use useMemo for costly computations,useMemo for expensive filtering/sorting,Recalculate every render,"useMemo(() => expensive(), [deps])",const result = expensiveCalc(),Medium,https://react.dev/reference/react/useMemo
12,Rendering,Memoize callbacks passed to children,Use useCallback for functions passed as props,useCallback for handlers passed to memoized children,New function reference every render,"useCallback(() => {}, [deps])",const handler = () => {},Medium,https://react.dev/reference/react/useCallback
13,Rendering,Use React.memo wisely,Wrap components that render often with same props,memo for pure components with stable props,memo everything or nothing,memo(ExpensiveList),memo(SimpleButton),Low,https://react.dev/reference/react/memo
14,Rendering,Avoid inline object/array creation in JSX,Create objects outside render or memoize,Define style objects outside component,Inline objects in props,<div style={styles.container}>,<div style={{ margin: 10 }}>,Medium,
15,Components,Keep components small and focused,Single responsibility for each component,One concern per component,Large multi-purpose components,<UserAvatar /><UserName />,<UserCard /> with 500 lines,Medium,
16,Components,Use composition over inheritance,Compose components using children and props,Use children prop for flexibility,Inheritance hierarchies,<Card>{content}</Card>,class SpecialCard extends Card,Medium,https://react.dev/learn/thinking-in-react
17,Components,Colocate related code,Keep related components and hooks together,Related files in same directory,Flat structure with many files,components/User/UserCard.tsx,components/UserCard.tsx + hooks/useUser.ts,Low,
18,Components,Use fragments to avoid extra DOM,Fragment or <> for multiple elements without wrapper,<> for grouping without DOM node,Extra div wrappers,<>{items.map(...)}</>,<div>{items.map(...)}</div>,Low,https://react.dev/reference/react/Fragment
19,Props,Destructure props,Destructure props for cleaner component code,Destructure in function signature,props.name props.value throughout,"function User({ name, age })",function User(props),Low,
20,Props,Provide default props values,Use default parameters or defaultProps,Default values in destructuring,Undefined checks throughout,function Button({ size = 'md' }),if (size === undefined) size = 'md',Low,
21,Props,Avoid prop drilling,Use context or composition for deeply nested data,Context for global data composition for UI,Passing props through 5+ levels,<UserContext.Provider>,<A user={u}><B user={u}><C user={u}>,Medium,https://react.dev/learn/passing-data-deeply-with-context
22,Props,Validate props with TypeScript,Use TypeScript interfaces for prop types,interface Props { name: string },PropTypes or no validation,interface ButtonProps { onClick: () => void },Button.propTypes = {},Medium,
23,Events,Use synthetic events correctly,React normalizes events across browsers,e.preventDefault() e.stopPropagation(),Access native event unnecessarily,onClick={(e) => e.preventDefault()},onClick={(e) => e.nativeEvent.preventDefault()},Low,https://react.dev/reference/react-dom/components/common#react-event-object
24,Events,Avoid binding in render,Use arrow functions in class or hooks,Arrow functions in functional components,bind in render or constructor,const handleClick = () => {},this.handleClick.bind(this),Medium,
25,Events,Pass event handlers not call results,Pass function reference not invocation,onClick={handleClick},onClick={handleClick()} causing immediate call,onClick={handleClick},onClick={handleClick()},High,
26,Forms,Controlled components for forms,Use state to control form inputs,value + onChange for inputs,Uncontrolled inputs with refs,<input value={val} onChange={setVal}>,<input ref={inputRef}>,Medium,https://react.dev/reference/react-dom/components/input#controlling-an-input-with-a-state-variable
27,Forms,Handle form submission properly,Prevent default and handle in submit handler,onSubmit with preventDefault,onClick on submit button only,<form onSubmit={handleSubmit}>,<button onClick={handleSubmit}>,Medium,
28,Forms,Debounce rapid input changes,Debounce search/filter inputs,useDeferredValue or debounce for search,Filter on every keystroke,useDeferredValue(searchTerm),useEffect filtering on every change,Medium,https://react.dev/reference/react/useDeferredValue
29,Hooks,Follow rules of hooks,Only call hooks at top level and in React functions,Hooks at component top level,Hooks in conditions loops or callbacks,"const [x, setX] = useState()","if (cond) { const [x, setX] = useState() }",High,https://react.dev/reference/rules/rules-of-hooks
30,Hooks,Custom hooks for reusable logic,Extract shared stateful logic to custom hooks,useCustomHook for reusable patterns,Duplicate hook logic across components,const { data } = useFetch(url),Duplicate useEffect/useState in components,Medium,https://react.dev/learn/reusing-logic-with-custom-hooks
31,Hooks,Name custom hooks with use prefix,Custom hooks must start with use,useFetch useForm useAuth,fetchData or getData for hook,function useFetch(url),function fetchData(url),High,
32,Context,Use context for global data,Context for theme auth locale,Context for app-wide state,Context for frequently changing data,<ThemeContext.Provider>,Context for form field values,Medium,https://react.dev/learn/passing-data-deeply-with-context
33,Context,Split contexts by concern,Separate contexts for different domains,ThemeContext + AuthContext,One giant AppContext,<ThemeProvider><AuthProvider>,<AppProvider value={{theme user...}}>,Medium,
34,Context,Memoize context values,Prevent unnecessary re-renders with useMemo,useMemo for context value object,New object reference every render,"value={useMemo(() => ({...}), [])}","value={{ user, theme }}",High,
35,Performance,Use React DevTools Profiler,Profile to identify performance bottlenecks,Profile before optimizing,Optimize without measuring,React DevTools Profiler,Guessing at bottlenecks,Medium,https://react.dev/learn/react-developer-tools
36,Performance,Lazy load components,Use React.lazy for code splitting,lazy() for routes and heavy components,Import everything upfront,const Page = lazy(() => import('./Page')),import Page from './Page',Medium,https://react.dev/reference/react/lazy
37,Performance,Virtualize long lists,Use windowing for lists over 100 items,react-window or react-virtual,Render thousands of DOM nodes,<VirtualizedList items={items}/>,{items.map(i => <Item />)},High,
38,Performance,Batch state updates,React 18 auto-batches but be aware,Let React batch related updates,Manual batching with flushSync,setA(1); setB(2); // batched,flushSync(() => setA(1)),Low,https://react.dev/learn/queueing-a-series-of-state-updates
39,ErrorHandling,Use error boundaries,Catch JavaScript errors in component tree,ErrorBoundary wrapping sections,Let errors crash entire app,<ErrorBoundary><App/></ErrorBoundary>,No error handling,High,https://react.dev/reference/react/Component#catching-rendering-errors-with-an-error-boundary
40,ErrorHandling,Handle async errors,Catch errors in async operations,try/catch in async handlers,Unhandled promise rejections,try { await fetch() } catch(e) {},await fetch() // no catch,High,
41,Testing,Test behavior not implementation,Test what user sees and does,Test renders and interactions,Test internal state or methods,expect(screen.getByText('Hello')),expect(component.state.name),Medium,https://testing-library.com/docs/react-testing-library/intro/
42,Testing,Use testing-library queries,Use accessible queries,getByRole getByLabelText,getByTestId for everything,getByRole('button'),getByTestId('submit-btn'),Medium,https://testing-library.com/docs/queries/about#priority
43,Accessibility,Use semantic HTML,Proper HTML elements for their purpose,button for clicks nav for navigation,div with onClick for buttons,<button onClick={...}>,<div onClick={...}>,High,https://react.dev/reference/react-dom/components#all-html-components
44,Accessibility,Manage focus properly,Handle focus for modals dialogs,Focus trap in modals return focus on close,No focus management,useEffect to focus input,Modal without focus trap,High,
45,Accessibility,Announce dynamic content,Use ARIA live regions for updates,aria-live for dynamic updates,Silent updates to screen readers,"<div aria-live=""polite"">{msg}</div>",<div>{msg}</div>,Medium,
46,Accessibility,Label form controls,Associate labels with inputs,htmlFor matching input id,Placeholder as only label,"<label htmlFor=""email"">Email</label>","<input placeholder=""Email""/>",High,
47,TypeScript,Type component props,Define interfaces for all props,interface Props with all prop types,any or missing types,interface Props { name: string },function Component(props: any),High,
48,TypeScript,Type state properly,Provide types for useState,useState<Type>() for complex state,Inferred any types,useState<User | null>(null),useState(null),Medium,
49,TypeScript,Type event handlers,Use React event types,React.ChangeEvent<HTMLInputElement>,Generic Event type,onChange: React.ChangeEvent<HTMLInputElement>,onChange: Event,Medium,
50,TypeScript,Use generics for reusable components,Generic components for flexible typing,Generic props for list components,Union types for flexibility,<List<T> items={T[]}>,<List items={any[]}>,Medium,
51,Patterns,Container/Presentational split,Separate data logic from UI,Container fetches presentational renders,Mixed data and UI in one,<UserContainer><UserView/></UserContainer>,<User /> with fetch and render,Low,
52,Patterns,Render props for flexibility,Share code via render prop pattern,Render prop for customizable rendering,Duplicate logic across components,<DataFetcher render={data => ...}/>,Copy paste fetch logic,Low,https://react.dev/reference/react/cloneElement#passing-data-with-a-render-prop
53,Patterns,Compound components,Related components sharing state,Tab + TabPanel sharing context,Prop drilling between related,<Tabs><Tab/><TabPanel/></Tabs>,<Tabs tabs={[]} panels={[...]}/>,Low,


path: assets/data/stacks/shadcn.csv
content: No,Category,Guideline,Description,Do,Don't,Code Good,Code Bad,Severity,Docs URL
1,Setup,Use CLI for installation,Install components via shadcn CLI for proper setup,npx shadcn@latest add component-name,Manual copy-paste from docs,npx shadcn@latest add button,Copy component code manually,High,https://ui.shadcn.com/docs/cli
2,Setup,Initialize project properly,Run init command to set up components.json and globals.css,npx shadcn@latest init before adding components,Skip init and add components directly,npx shadcn@latest init,npx shadcn@latest add button (without init),High,https://ui.shadcn.com/docs/installation
3,Setup,Configure path aliases,Set up proper import aliases in tsconfig and components.json,Use @/components/ui path aliases,Relative imports like ../../components,import { Button } from "@/components/ui/button",import { Button } from "../../components/ui/button",Medium,https://ui.shadcn.com/docs/installation
4,Theming,Use CSS variables for colors,Define colors as CSS variables in globals.css for theming,CSS variables in :root and .dark,Hardcoded color values in components,bg-primary text-primary-foreground,bg-blue-500 text-white,High,https://ui.shadcn.com/docs/theming
5,Theming,Follow naming convention,Use semantic color names with foreground pattern,primary/primary-foreground secondary/secondary-foreground,Generic color names,--primary --primary-foreground,--blue --light-blue,Medium,https://ui.shadcn.com/docs/theming
6,Theming,Support dark mode,Include .dark class styles for all custom CSS,Define both :root and .dark color schemes,Only light mode colors,.dark { --background: 240 10% 3.9%; },No .dark class styles,High,https://ui.shadcn.com/docs/dark-mode
7,Components,Use component variants,Leverage cva variants for consistent styling,Use variant prop for different styles,Inline conditional classes,<Button variant="destructive">,<Button className={isError ? "bg-red-500" : "bg-blue-500"}>,Medium,https://ui.shadcn.com/docs/components/button
8,Components,Compose with className,Add custom classes via className prop for overrides,Extend with className for one-off customizations,Modify component source directly,<Button className="w-full">,Edit button.tsx to add w-full,Medium,https://ui.shadcn.com/docs/components/button
9,Components,Use size variants consistently,Apply size prop for consistent sizing across components,size="sm" size="lg" for sizing,Mix size classes inconsistently,<Button size="lg">,<Button className="text-lg px-8 py-4">,Medium,https://ui.shadcn.com/docs/components/button
10,Components,Prefer compound components,Use provided sub-components for complex UI,Card + CardHeader + CardContent pattern,Single component with many props,<Card><CardHeader><CardTitle>,<Card title="x" content="y" footer="z">,Medium,https://ui.shadcn.com/docs/components/card
11,Dialog,Use Dialog for modal content,Dialog component for overlay modal windows,Dialog for confirmations forms details,Alert for modal content,<Dialog><DialogContent>,<Alert> styled as modal,High,https://ui.shadcn.com/docs/components/dialog
12,Dialog,Handle dialog state properly,Use open and onOpenChange for controlled dialogs,Controlled state with useState,Uncontrolled with default open only,"<Dialog open={open} onOpenChange={setOpen}>","<Dialog defaultOpen={true}>",Medium,https://ui.shadcn.com/docs/components/dialog
13,Dialog,Include proper dialog structure,Use DialogHeader DialogTitle DialogDescription,Complete semantic structure,Missing title or description,<DialogHeader><DialogTitle><DialogDescription>,<DialogContent><p>Content</p></DialogContent>,High,https://ui.shadcn.com/docs/components/dialog
14,Sheet,Use Sheet for side panels,Sheet component for slide-out panels and drawers,Sheet for navigation filters settings,Dialog for side content,<Sheet side="right">,<Dialog> with slide animation,Medium,https://ui.shadcn.com/docs/components/sheet
15,Sheet,Specify sheet side,Set side prop for sheet slide direction,Explicit side="left" or side="right",Default side without consideration,<Sheet><SheetContent side="left">,<Sheet><SheetContent>,Low,https://ui.shadcn.com/docs/components/sheet
16,Form,Use Form with react-hook-form,Integrate Form component with react-hook-form for validation,useForm + Form + FormField pattern,Custom form handling without Form,<Form {...form}><FormField control={form.control}>,<form onSubmit={handleSubmit}>,High,https://ui.shadcn.com/docs/components/form
17,Form,Use FormField for inputs,Wrap inputs in FormField for proper labeling and errors,FormField + FormItem + FormLabel + FormControl,Input without FormField wrapper,<FormField><FormItem><FormLabel><FormControl><Input>,<Input onChange={...}>,High,https://ui.shadcn.com/docs/components/form
18,Form,Display form messages,Use FormMessage for validation error display,FormMessage after FormControl,Custom error text without FormMessage,<FormControl><Input/></FormControl><FormMessage/>,<Input/>{error && <span>{error}</span>},Medium,https://ui.shadcn.com/docs/components/form
19,Form,Use Zod for validation,Define form schema with Zod for type-safe validation,zodResolver with form schema,Manual validation logic,zodResolver(formSchema),validate: (values) => { if (!values.email) },Medium,https://ui.shadcn.com/docs/components/form
20,Select,Use Select for dropdowns,Select component for option selection,Select for choosing from list,Native select element,<Select><SelectTrigger><SelectContent>,<select><option>,Medium,https://ui.shadcn.com/docs/components/select
21,Select,Structure Select properly,Include Trigger Value Content and Items,Complete Select structure,Missing SelectValue or SelectContent,<SelectTrigger><SelectValue/></SelectTrigger><SelectContent><SelectItem>,<Select><option>,High,https://ui.shadcn.com/docs/components/select
22,Command,Use Command for search,Command component for searchable lists and palettes,Command for command palette search,Input with custom dropdown,<Command><CommandInput><CommandList>,<Input><div className="dropdown">,Medium,https://ui.shadcn.com/docs/components/command
23,Command,Group command items,Use CommandGroup for categorized items,CommandGroup with heading for sections,Flat list without grouping,<CommandGroup heading="Suggestions"><CommandItem>,<CommandItem> without groups,Low,https://ui.shadcn.com/docs/components/command
24,Table,Use Table for data display,Table component for structured data,Table for tabular data display,Div grid for table-like layouts,<Table><TableHeader><TableBody><TableRow>,<div className="grid">,Medium,https://ui.shadcn.com/docs/components/table
25,Table,Include proper table structure,Use TableHeader TableBody TableRow TableCell,Semantic table structure,Missing thead or tbody,<TableHeader><TableRow><TableHead>,<Table><TableRow> without header,High,https://ui.shadcn.com/docs/components/table
26,DataTable,Use DataTable for complex tables,Combine Table with TanStack Table for features,DataTable pattern for sorting filtering pagination,Custom table implementation,useReactTable + Table components,Custom sort filter pagination logic,Medium,https://ui.shadcn.com/docs/components/data-table
27,Tabs,Use Tabs for content switching,Tabs component for tabbed interfaces,Tabs for related content sections,Custom tab implementation,<Tabs><TabsList><TabsTrigger><TabsContent>,<div onClick={() => setTab(...)},Medium,https://ui.shadcn.com/docs/components/tabs
28,Tabs,Set default tab value,Specify defaultValue for initial tab,defaultValue on Tabs component,No default leaving first tab,<Tabs defaultValue="account">,<Tabs> without defaultValue,Low,https://ui.shadcn.com/docs/components/tabs
29,Accordion,Use Accordion for collapsible,Accordion for expandable content sections,Accordion for FAQ settings panels,Custom collapse implementation,<Accordion><AccordionItem><AccordionTrigger>,<div onClick={() => setOpen(!open)}>,Medium,https://ui.shadcn.com/docs/components/accordion
30,Accordion,Choose accordion type,Use type="single" or type="multiple" appropriately,type="single" for one open type="multiple" for many,Default type without consideration,<Accordion type="single" collapsible>,<Accordion> without type,Low,https://ui.shadcn.com/docs/components/accordion
31,Toast,Use Sonner for toasts,Sonner integration for toast notifications,toast() from sonner for notifications,Custom toast implementation,toast("Event created"),setShowToast(true),Medium,https://ui.shadcn.com/docs/components/sonner
32,Toast,Add Toaster to layout,Include Toaster component in root layout,<Toaster /> in app layout,Toaster in individual pages,app/layout.tsx: <Toaster />,page.tsx: <Toaster />,High,https://ui.shadcn.com/docs/components/sonner
33,Toast,Use toast variants,Apply toast.success toast.error for context,Semantic toast methods,Generic toast for all messages,toast.success("Saved!") toast.error("Failed"),toast("Saved!") toast("Failed"),Medium,https://ui.shadcn.com/docs/components/sonner
34,Popover,Use Popover for floating content,Popover for dropdown menus and floating panels,Popover for contextual actions,Absolute positioned divs,<Popover><PopoverTrigger><PopoverContent>,<div className="relative"><div className="absolute">,Medium,https://ui.shadcn.com/docs/components/popover
35,Popover,Handle popover alignment,Use align and side props for positioning,Explicit alignment configuration,Default alignment for all,<PopoverContent align="start" side="bottom">,<PopoverContent>,Low,https://ui.shadcn.com/docs/components/popover
36,DropdownMenu,Use DropdownMenu for actions,DropdownMenu for action lists and context menus,DropdownMenu for user menu actions,Popover for action lists,<DropdownMenu><DropdownMenuTrigger><DropdownMenuContent>,<Popover> for menu actions,Medium,https://ui.shadcn.com/docs/components/dropdown-menu
37,DropdownMenu,Group menu items,Use DropdownMenuGroup and DropdownMenuSeparator,Organized menu with separators,Flat list of items,<DropdownMenuGroup><DropdownMenuItem><DropdownMenuSeparator>,<DropdownMenuItem> without organization,Low,https://ui.shadcn.com/docs/components/dropdown-menu
38,Tooltip,Use Tooltip for hints,Tooltip for icon buttons and truncated text,Tooltip for additional context,Title attribute for tooltips,<Tooltip><TooltipTrigger><TooltipContent>,<button title="Delete">,Medium,https://ui.shadcn.com/docs/components/tooltip
39,Tooltip,Add TooltipProvider,Wrap app or section in TooltipProvider,TooltipProvider at app level,TooltipProvider per tooltip,<TooltipProvider><App/></TooltipProvider>,<Tooltip><TooltipProvider>,High,https://ui.shadcn.com/docs/components/tooltip
40,Skeleton,Use Skeleton for loading,Skeleton component for loading placeholders,Skeleton matching content layout,Spinner for content loading,<Skeleton className="h-4 w-[200px]"/>,<Spinner/> for card loading,Medium,https://ui.shadcn.com/docs/components/skeleton
41,Skeleton,Match skeleton dimensions,Size skeleton to match loaded content,Skeleton same size as expected content,Generic skeleton size,<Skeleton className="h-12 w-12 rounded-full"/>,<Skeleton/> without sizing,Medium,https://ui.shadcn.com/docs/components/skeleton
42,AlertDialog,Use AlertDialog for confirms,AlertDialog for destructive action confirmation,AlertDialog for delete confirmations,Dialog for confirmations,<AlertDialog><AlertDialogTrigger><AlertDialogContent>,<Dialog> for delete confirmation,High,https://ui.shadcn.com/docs/components/alert-dialog
43,AlertDialog,Include action buttons,Use AlertDialogAction and AlertDialogCancel,Standard confirm/cancel pattern,Custom buttons in AlertDialog,<AlertDialogCancel>Cancel</AlertDialogCancel><AlertDialogAction>,<Button>Cancel</Button><Button>Confirm</Button>,Medium,https://ui.shadcn.com/docs/components/alert-dialog
44,Sidebar,Use Sidebar for navigation,Sidebar component for app navigation,Sidebar for main app navigation,Custom sidebar implementation,<SidebarProvider><Sidebar><SidebarContent>,<div className="w-64 fixed">,Medium,https://ui.shadcn.com/docs/components/sidebar
45,Sidebar,Wrap in SidebarProvider,Use SidebarProvider for sidebar state management,SidebarProvider at layout level,Sidebar without provider,<SidebarProvider><Sidebar></SidebarProvider>,<Sidebar> without provider,High,https://ui.shadcn.com/docs/components/sidebar
46,Sidebar,Use SidebarTrigger,Include SidebarTrigger for mobile toggle,SidebarTrigger for responsive toggle,Custom toggle button,<SidebarTrigger/>,<Button onClick={() => toggleSidebar()}>,Medium,https://ui.shadcn.com/docs/components/sidebar
47,Chart,Use Chart for data viz,Chart component with Recharts integration,Chart component for dashboards,Direct Recharts without wrapper,<ChartContainer config={chartConfig}>,<ResponsiveContainer><BarChart>,Medium,https://ui.shadcn.com/docs/components/chart
48,Chart,Define chart config,Create chartConfig for consistent theming,chartConfig with color definitions,Inline colors in charts,"{ desktop: { label: ""Desktop"", color: ""#2563eb"" } }",<Bar fill="#2563eb"/>,Medium,https://ui.shadcn.com/docs/components/chart
49,Chart,Use ChartTooltip,Apply ChartTooltip for interactive charts,ChartTooltip with ChartTooltipContent,Recharts Tooltip directly,<ChartTooltip content={<ChartTooltipContent/>}/>,<Tooltip/> from recharts,Low,https://ui.shadcn.com/docs/components/chart
50,Blocks,Use blocks for scaffolding,Start from shadcn blocks for common layouts,npx shadcn@latest add dashboard-01,Build dashboard from scratch,npx shadcn@latest add login-01,Custom login page from scratch,Medium,https://ui.shadcn.com/blocks
51,Blocks,Customize block components,Modify copied block code to fit needs,Edit block files after installation,Use blocks without modification,Customize dashboard-01 layout,Use dashboard-01 as-is,Low,https://ui.shadcn.com/blocks
52,A11y,Use semantic components,Shadcn components have built-in ARIA,Rely on component accessibility,Override ARIA attributes,<Button> has button role,<div role="button">,High,https://ui.shadcn.com/docs/components/button
53,A11y,Maintain focus management,Dialog Sheet handle focus automatically,Let components manage focus,Custom focus handling,<Dialog> traps focus,document.querySelector().focus(),High,https://ui.shadcn.com/docs/components/dialog
54,A11y,Provide labels,Use FormLabel and aria-label appropriately,FormLabel for form inputs,Placeholder as only label,<FormLabel>Email</FormLabel><Input/>,<Input placeholder="Email"/>,High,https://ui.shadcn.com/docs/components/form
55,Performance,Import components individually,Import only needed components,Named imports from component files,Import all from index,import { Button } from "@/components/ui/button",import { Button Card Dialog } from "@/components/ui",Medium,
56,Performance,Lazy load dialogs,Dynamic import for heavy dialog content,React.lazy for dialog content,Import all dialogs upfront,const HeavyContent = lazy(() => import('./Heavy')),import HeavyContent from './Heavy',Medium,
57,Customization,Extend variants with cva,Add new variants using class-variance-authority,Extend buttonVariants for new styles,Inline classes for variants,"variants: { size: { xl: ""h-14 px-8"" } }",className="h-14 px-8",Medium,https://ui.shadcn.com/docs/components/button
58,Customization,Create custom components,Build new components following shadcn patterns,Use cn() and cva for custom components,Different patterns for custom,const Custom = ({ className }) => <div className={cn("base" className)}>,const Custom = ({ style }) => <div style={style}>,Medium,
59,Patterns,Use asChild for composition,asChild prop for component composition,Slot pattern with asChild,Wrapper divs for composition,<Button asChild><Link href="/">,<Button><Link href="/"></Link></Button>,Medium,https://ui.shadcn.com/docs/components/button
60,Patterns,Combine with React Hook Form,Form + useForm for complete forms,RHF Controller with shadcn inputs,Custom form state management,<FormField control={form.control} name="email">,<Input value={email} onChange={(e) => setEmail(e.target.value)},High,https://ui.shadcn.com/docs/components/form


path: assets/data/stacks/svelte.csv
content: No,Category,Guideline,Description,Do,Don't,Code Good,Code Bad,Severity,Docs URL
1,Reactivity,Use $: for reactive statements,Automatic dependency tracking,$: for derived values,Manual recalculation,$: doubled = count * 2,let doubled; count && (doubled = count * 2),Medium,https://svelte.dev/docs/svelte-components#script-3-$-marks-a-statement-as-reactive
2,Reactivity,Trigger reactivity with assignment,Svelte tracks assignments not mutations,Reassign arrays/objects to trigger update,Mutate without reassignment,"items = [...items, newItem]",items.push(newItem),High,https://svelte.dev/docs/svelte-components#script-2-assignments-are-reactive
3,Reactivity,Use $state in Svelte 5,Runes for explicit reactivity,let count = $state(0),Implicit reactivity in Svelte 5,let count = $state(0),let count = 0 (Svelte 5),Medium,https://svelte.dev/blog/runes
4,Reactivity,Use $derived for computed values,$derived replaces $: in Svelte 5,let doubled = $derived(count * 2),$: in Svelte 5,let doubled = $derived(count * 2),$: doubled = count * 2 (Svelte 5),Medium,
5,Reactivity,Use $effect for side effects,$effect replaces $: side effects,Use $effect for subscriptions,$: for side effects in Svelte 5,$effect(() => console.log(count)),$: console.log(count) (Svelte 5),Medium,
6,Props,Export let for props,Declare props with export let,export let propName,Props without export,export let count = 0,let count = 0,High,https://svelte.dev/docs/svelte-components#script-1-export-creates-a-component-prop
7,Props,Use $props in Svelte 5,$props rune for prop access,let { name } = $props(),export let in Svelte 5,"let { name, age = 0 } = $props()",export let name; export let age = 0,Medium,
8,Props,Provide default values,Default props with assignment,export let count = 0,Required props without defaults,export let count = 0,export let count,Low,
9,Props,Use spread props,Pass through unknown props,{...$$restProps} on elements,Manual prop forwarding,<button {...$$restProps}>,<button class={$$props.class}>,Low,https://svelte.dev/docs/basic-markup#attributes-and-props
10,Bindings,Use bind: for two-way binding,Simplified input handling,bind:value for inputs,on:input with manual update,<input bind:value={name}>,<input value={name} on:input={e => name = e.target.value}>,Low,https://svelte.dev/docs/element-directives#bind-property
11,Bindings,Bind to DOM elements,Reference DOM nodes,bind:this for element reference,querySelector in onMount,<div bind:this={el}>,onMount(() => el = document.querySelector()),Medium,
12,Bindings,Use bind:group for radios/checkboxes,Simplified group handling,bind:group for radio/checkbox groups,Manual checked handling,"<input type=""radio"" bind:group={selected}>","<input type=""radio"" checked={selected === value}>",Low,
13,Events,Use on: for event handlers,Event directive syntax,on:click={handler},addEventListener in onMount,<button on:click={handleClick}>,onMount(() => btn.addEventListener()),Medium,https://svelte.dev/docs/element-directives#on-eventname
14,Events,Forward events with on:event,Pass events to parent,on:click without handler,createEventDispatcher for DOM events,<button on:click>,"dispatch('click', event)",Low,
15,Events,Use createEventDispatcher,Custom component events,dispatch for custom events,on:event for custom events,"dispatch('save', { data })",on:save without dispatch,Medium,https://svelte.dev/docs/svelte#createeventdispatcher
16,Lifecycle,Use onMount for initialization,Run code after component mounts,onMount for setup and data fetching,Code in script body for side effects,onMount(() => fetchData()),fetchData() in script body,High,https://svelte.dev/docs/svelte#onmount
17,Lifecycle,Return cleanup from onMount,Automatic cleanup on destroy,Return function from onMount,Separate onDestroy for paired cleanup,onMount(() => { sub(); return unsub }),onMount(sub); onDestroy(unsub),Medium,
18,Lifecycle,Use onDestroy sparingly,Only when onMount cleanup not possible,onDestroy for non-mount cleanup,onDestroy for mount-related cleanup,onDestroy for store unsubscribe,onDestroy(() => clearInterval(id)),Low,
19,Lifecycle,Avoid beforeUpdate/afterUpdate,Usually not needed,Reactive statements instead,beforeUpdate for derived state,$: if (x) doSomething(),beforeUpdate(() => doSomething()),Low,
20,Stores,Use writable for mutable state,Basic reactive store,writable for shared mutable state,Local variables for shared state,const count = writable(0),let count = 0 in module,Medium,https://svelte.dev/docs/svelte-store#writable
21,Stores,Use readable for read-only state,External data sources,readable for derived/external data,writable for read-only data,"readable(0, set => interval(set))",writable(0) for timer,Low,https://svelte.dev/docs/svelte-store#readable
22,Stores,Use derived for computed stores,Combine or transform stores,derived for computed values,Manual subscription for derived,"derived(count, $c => $c * 2)",count.subscribe(c => doubled = c * 2),Medium,https://svelte.dev/docs/svelte-store#derived
23,Stores,Use $ prefix for auto-subscription,Automatic subscribe/unsubscribe,$storeName in components,Manual subscription,{$count},count.subscribe(c => value = c),High,
24,Stores,Clean up custom subscriptions,Unsubscribe when component destroys,Return unsubscribe from onMount,Leave subscriptions open,onMount(() => store.subscribe(fn)),store.subscribe(fn) in script,High,
25,Slots,Use slots for composition,Content projection,<slot> for flexible content,Props for all content,<slot>Default</slot>,"<Component content=""text""/>",Medium,https://svelte.dev/docs/special-elements#slot
26,Slots,Name slots for multiple areas,Multiple content areas,"<slot name=""header"">",Single slot for complex layouts,"<slot name=""header""><slot name=""footer"">",<slot> with complex conditionals,Low,
27,Slots,Check slot content with $$slots,Conditional slot rendering,$$slots.name for conditional rendering,Always render slot wrapper,"{#if $$slots.footer}<slot name=""footer""/>{/if}","<div><slot name=""footer""/></div>",Low,
28,Styling,Use scoped styles by default,Styles scoped to component,<style> for component styles,Global styles for component,:global() only when needed,<style> all global,Medium,https://svelte.dev/docs/svelte-components#style
29,Styling,Use :global() sparingly,Escape scoping when needed,:global for third-party styling,Global for all styles,:global(.external-lib),<style> without scoping,Medium,
30,Styling,Use CSS variables for theming,Dynamic styling,CSS custom properties,Inline styles for themes,"style=""--color: {color}""","style=""color: {color}""",Low,
31,Transitions,Use built-in transitions,Svelte transition directives,transition:fade for simple effects,Manual CSS transitions,<div transition:fade>,<div class:fade={visible}>,Low,https://svelte.dev/docs/element-directives#transition-fn
32,Transitions,Use in: and out: separately,Different enter/exit animations,in:fly out:fade for asymmetric,Same transition for both,<div in:fly out:fade>,<div transition:fly>,Low,
33,Transitions,Add local modifier,Prevent ancestor trigger,transition:fade|local,Global transitions for lists,<div transition:slide|local>,<div transition:slide>,Medium,
34,Actions,Use actions for DOM behavior,Reusable DOM logic,use:action for DOM enhancements,onMount for each usage,<div use:clickOutside>,onMount(() => setupClickOutside(el)),Medium,https://svelte.dev/docs/element-directives#use-action
35,Actions,Return update and destroy,Lifecycle methods for actions,"Return { update, destroy }",Only initial setup,"return { update(params) {}, destroy() {} }",return destroy only,Medium,
36,Actions,Pass parameters to actions,Configure action behavior,use:action={params},Hardcoded action behavior,<div use:tooltip={options}>,<div use:tooltip>,Low,
37,Logic,Use {#if} for conditionals,Template conditionals,{#if} {:else if} {:else},Ternary in expressions,{#if cond}...{:else}...{/if},{cond ? a : b} for complex,Low,https://svelte.dev/docs/logic-blocks#if
38,Logic,Use {#each} for lists,List rendering,{#each} with key,Map in expression,{#each items as item (item.id)},{items.map(i => `<div>${i}</div>`)},Medium,
39,Logic,Always use keys in {#each},Proper list reconciliation,(item.id) for unique key,Index as key or no key,{#each items as item (item.id)},"{#each items as item, i (i)}",High,
40,Logic,Use {#await} for promises,Handle async states,{#await} for loading/error states,Manual promise handling,{#await promise}...{:then}...{:catch},{#if loading}...{#if error},Medium,https://svelte.dev/docs/logic-blocks#await
41,SvelteKit,Use +page.svelte for routes,File-based routing,+page.svelte for route components,Custom routing setup,routes/about/+page.svelte,routes/About.svelte,Medium,https://kit.svelte.dev/docs/routing
42,SvelteKit,Use +page.js for data loading,Load data before render,load function in +page.js,onMount for data fetching,export function load() {},onMount(() => fetchData()),High,https://kit.svelte.dev/docs/load
43,SvelteKit,Use +page.server.js for server-only,Server-side data loading,+page.server.js for sensitive data,+page.js for API keys,+page.server.js with DB access,+page.js with DB access,High,
44,SvelteKit,Use form actions,Server-side form handling,+page.server.js actions,API routes for forms,export const actions = { default },fetch('/api/submit'),Medium,https://kit.svelte.dev/docs/form-actions
45,SvelteKit,Use $app/stores for app state,$page $navigating $updated,$page for current page data,Manual URL parsing,import { page } from '$app/stores',window.location.pathname,Medium,https://kit.svelte.dev/docs/modules#$app-stores
46,Performance,Use {#key} for forced re-render,Reset component state,{#key id} for fresh instance,Manual destroy/create,{#key item.id}<Component/>{/key},on:change={() => component = null},Low,https://svelte.dev/docs/logic-blocks#key
47,Performance,Avoid unnecessary reactivity,Not everything needs $:,$: only for side effects,$: for simple assignments,$: if (x) console.log(x),$: y = x (when y = x works),Low,
48,Performance,Use immutable compiler option,Skip equality checks,immutable: true for large lists,Default for all components,<svelte:options immutable/>,Default without immutable,Low,
49,TypeScript,"Use lang=""ts"" in script",TypeScript support,"<script lang=""ts"">",JavaScript for typed projects,"<script lang=""ts"">",<script> with JSDoc,Medium,https://svelte.dev/docs/typescript
50,TypeScript,Type props with interface,Explicit prop types,interface $$Props for types,Untyped props,interface $$Props { name: string },export let name,Medium,
51,TypeScript,Type events with createEventDispatcher,Type-safe events,createEventDispatcher<Events>(),Untyped dispatch,createEventDispatcher<{ save: Data }>(),createEventDispatcher(),Medium,
52,Accessibility,Use semantic elements,Proper HTML in templates,button nav main appropriately,div for everything,<button on:click>,<div on:click>,High,
53,Accessibility,Add aria to dynamic content,Accessible state changes,aria-live for updates,Silent dynamic updates,"<div aria-live=""polite"">{message}</div>",<div>{message}</div>,Medium,


path: assets/data/stacks/swiftui.csv
content: No,Category,Guideline,Description,Do,Don't,Code Good,Code Bad,Severity,Docs URL
1,Views,Use struct for views,SwiftUI views are value types,struct MyView: View,class MyView: View,struct ContentView: View { var body: some View },class ContentView: View,High,https://developer.apple.com/documentation/swiftui/view
2,Views,Keep views small and focused,Single responsibility for each view,Extract subviews for complex layouts,Large monolithic views,Extract HeaderView FooterView,500+ line View struct,Medium,
3,Views,Use body computed property,body returns the view hierarchy,var body: some View { },func body() -> some View,"var body: some View { Text(""Hello"") }",func body() -> Text,High,
4,Views,Prefer composition over inheritance,Compose views using ViewBuilder,Combine smaller views,Inheritance hierarchies,VStack { Header() Content() },class SpecialView extends BaseView,Medium,
5,State,Use @State for local state,Simple value types owned by view,@State for view-local primitives,@State for shared data,@State private var count = 0,@State var sharedData: Model,High,https://developer.apple.com/documentation/swiftui/state
6,State,Use @Binding for two-way data,Pass mutable state to child views,@Binding for child input,@State in child for parent data,@Binding var isOn: Bool,$isOn to pass binding,Medium,https://developer.apple.com/documentation/swiftui/binding
7,State,Use @StateObject for reference types,ObservableObject owned by view,@StateObject for view-created objects,@ObservedObject for owned objects,@StateObject private var vm = ViewModel(),@ObservedObject var vm = ViewModel(),High,https://developer.apple.com/documentation/swiftui/stateobject
8,State,Use @ObservedObject for injected objects,Reference types passed from parent,@ObservedObject for injected dependencies,@StateObject for injected objects,@ObservedObject var vm: ViewModel,@StateObject var vm: ViewModel (injected),High,https://developer.apple.com/documentation/swiftui/observedobject
9,State,Use @EnvironmentObject for shared state,App-wide state injection,@EnvironmentObject for global state,Prop drilling through views,@EnvironmentObject var settings: Settings,Pass settings through 5 views,Medium,https://developer.apple.com/documentation/swiftui/environmentobject
10,State,Use @Published in ObservableObject,Automatically publish property changes,@Published for observed properties,Manual objectWillChange calls,@Published var items: [Item] = [],var items: [Item] { didSet { objectWillChange.send() } },Medium,
11,Observable,Use @Observable macro (iOS 17+),Modern observation without Combine,@Observable class for view models,ObservableObject for new projects,@Observable class ViewModel { },class ViewModel: ObservableObject,Medium,https://developer.apple.com/documentation/observation
12,Observable,Use @Bindable for @Observable,Create bindings from @Observable,@Bindable var vm for bindings,@Binding with @Observable,@Bindable var viewModel,$viewModel.name with @Observable,Medium,
13,Layout,Use VStack HStack ZStack,Standard stack-based layouts,Stacks for linear arrangements,GeometryReader for simple layouts,VStack { Text() Image() },GeometryReader for vertical list,Medium,https://developer.apple.com/documentation/swiftui/vstack
14,Layout,Use LazyVStack LazyHStack for lists,Lazy loading for performance,Lazy stacks for long lists,Regular stacks for 100+ items,LazyVStack { ForEach(items) },VStack { ForEach(largeArray) },High,https://developer.apple.com/documentation/swiftui/lazyvstack
15,Layout,Use GeometryReader sparingly,Only when needed for sizing,GeometryReader for responsive layouts,GeometryReader everywhere,GeometryReader for aspect ratio,GeometryReader wrapping everything,Medium,
16,Layout,Use spacing and padding consistently,Consistent spacing throughout app,Design system spacing values,Magic numbers for spacing,.padding(16) or .padding(),".padding(13), .padding(17)",Low,
17,Layout,Use frame modifiers correctly,Set explicit sizes when needed,.frame(maxWidth: .infinity),Fixed sizes for responsive content,.frame(maxWidth: .infinity),.frame(width: 375),Medium,
18,Modifiers,Order modifiers correctly,Modifier order affects rendering,Background before padding for full coverage,Wrong modifier order,.padding().background(Color.red),.background(Color.red).padding(),High,
19,Modifiers,Create custom ViewModifiers,Reusable modifier combinations,ViewModifier for repeated styling,Duplicate modifier chains,struct CardStyle: ViewModifier,.shadow().cornerRadius() everywhere,Medium,https://developer.apple.com/documentation/swiftui/viewmodifier
20,Modifiers,Use conditional modifiers carefully,Avoid changing view identity,if-else with same view type,Conditional that changes view identity,Text(title).foregroundColor(isActive ? .blue : .gray),if isActive { Text().bold() } else { Text() },Medium,
21,Navigation,Use NavigationStack (iOS 16+),Modern navigation with type-safe paths,NavigationStack with navigationDestination,NavigationView for new projects,NavigationStack { },NavigationView { } (deprecated),Medium,https://developer.apple.com/documentation/swiftui/navigationstack
22,Navigation,Use navigationDestination,Type-safe navigation destinations,.navigationDestination(for:),NavigationLink(destination:),.navigationDestination(for: Item.self),NavigationLink(destination: DetailView()),Medium,
23,Navigation,Use @Environment for dismiss,Programmatic navigation dismissal,@Environment(\.dismiss) var dismiss,presentationMode (deprecated),@Environment(\.dismiss) var dismiss,@Environment(\.presentationMode),Low,
24,Lists,Use List for scrollable content,Built-in scrolling and styling,List for standard scrollable content,ScrollView + VStack for simple lists,List { ForEach(items) { } },ScrollView { VStack { ForEach } },Low,https://developer.apple.com/documentation/swiftui/list
25,Lists,Provide stable identifiers,Use Identifiable or explicit id,Identifiable protocol or id parameter,Index as identifier,ForEach(items) where Item: Identifiable,"ForEach(items.indices, id: \.self)",High,
26,Lists,Use onDelete and onMove,Standard list editing,onDelete for swipe to delete,Custom delete implementation,.onDelete(perform: delete),.onTapGesture for delete,Low,
27,Forms,Use Form for settings,Grouped input controls,Form for settings screens,Manual grouping for forms,Form { Section { Toggle() } },VStack { Toggle() },Low,https://developer.apple.com/documentation/swiftui/form
28,Forms,Use @FocusState for keyboard,Manage keyboard focus,@FocusState for text field focus,Manual first responder handling,@FocusState private var isFocused: Bool,UIKit first responder,Medium,https://developer.apple.com/documentation/swiftui/focusstate
29,Forms,Validate input properly,Show validation feedback,Real-time validation feedback,Submit without validation,TextField with validation state,TextField without error handling,Medium,
30,Async,Use .task for async work,Automatic cancellation on view disappear,.task for view lifecycle async,onAppear with Task,.task { await loadData() },onAppear { Task { await loadData() } },Medium,https://developer.apple.com/documentation/swiftui/view/task(priority:_:)
31,Async,Handle loading states,Show progress during async operations,ProgressView during loading,Empty view during load,if isLoading { ProgressView() },No loading indicator,Medium,
32,Async,Use @MainActor for UI updates,Ensure UI updates on main thread,@MainActor on view models,Manual DispatchQueue.main,@MainActor class ViewModel,DispatchQueue.main.async,Medium,
33,Animation,Use withAnimation,Animate state changes,withAnimation for state transitions,No animation for state changes,withAnimation { isExpanded.toggle() },isExpanded.toggle(),Low,https://developer.apple.com/documentation/swiftui/withanimation(_:_:)
34,Animation,Use .animation modifier,Apply animations to views,.animation(.spring()) on view,Manual animation timing,.animation(.easeInOut),CABasicAnimation equivalent,Low,
35,Animation,Respect reduced motion,Check accessibility settings,Check accessibilityReduceMotion,Ignore motion preferences,@Environment(\.accessibilityReduceMotion),Always animate regardless,High,
36,Preview,Use #Preview macro (Xcode 15+),Modern preview syntax,#Preview for view previews,PreviewProvider protocol,#Preview { ContentView() },struct ContentView_Previews: PreviewProvider,Low,
37,Preview,Create multiple previews,Test different states and devices,Multiple previews for states,Single preview only,"#Preview(""Light"") { } #Preview(""Dark"") { }",Single preview configuration,Low,
38,Preview,Use preview data,Dedicated preview mock data,Static preview data,Production data in previews,Item.preview for preview,Fetch real data in preview,Low,
39,Performance,Avoid expensive body computations,Body should be fast to compute,Precompute in view model,Heavy computation in body,vm.computedValue in body,Complex calculation in body,High,
40,Performance,Use Equatable views,Skip unnecessary view updates,Equatable for complex views,Default equality for all views,struct MyView: View Equatable,No Equatable conformance,Medium,
41,Performance,Profile with Instruments,Measure before optimizing,Use SwiftUI Instruments,Guess at performance issues,Profile with Instruments,Optimize without measuring,Medium,
42,Accessibility,Add accessibility labels,Describe UI elements,.accessibilityLabel for context,Missing labels,".accessibilityLabel(""Close button"")",Button without label,High,https://developer.apple.com/documentation/swiftui/view/accessibilitylabel(_:)-1d7jv
43,Accessibility,Support Dynamic Type,Respect text size preferences,Scalable fonts and layouts,Fixed font sizes,.font(.body) with Dynamic Type,.font(.system(size: 16)),High,
44,Accessibility,Use semantic views,Proper accessibility traits,Correct accessibilityTraits,Wrong semantic meaning,Button for actions Image for display,Image that acts like button,Medium,
45,Testing,Use ViewInspector for testing,Third-party view testing,ViewInspector for unit tests,UI tests only,ViewInspector assertions,Only XCUITest,Medium,
46,Testing,Test view models,Unit test business logic,XCTest for view model,Skip view model testing,Test ViewModel methods,No unit tests,Medium,
47,Testing,Use preview as visual test,Previews catch visual regressions,Multiple preview configurations,No visual verification,Preview different states,Single preview only,Low,
48,Architecture,Use MVVM pattern,Separate view and logic,ViewModel for business logic,Logic in View,ObservableObject ViewModel,@State for complex logic,Medium,
49,Architecture,Keep views dumb,Views display view model state,View reads from ViewModel,Business logic in View,view.items from vm.items,Complex filtering in View,Medium,
50,Architecture,Use dependency injection,Inject dependencies for testing,Initialize with dependencies,Hard-coded dependencies,init(service: ServiceProtocol),let service = RealService(),Medium,


path: assets/data/stacks/vue.csv
content: No,Category,Guideline,Description,Do,Don't,Code Good,Code Bad,Severity,Docs URL
1,Composition,Use Composition API for new projects,Composition API offers better TypeScript support and logic reuse,<script setup> for components,Options API for new projects,<script setup>,export default { data() },Medium,https://vuejs.org/guide/extras/composition-api-faq.html
2,Composition,Use script setup syntax,Cleaner syntax with automatic exports,<script setup> with defineProps,setup() function manually,<script setup>,<script> setup() { return {} },Low,https://vuejs.org/api/sfc-script-setup.html
3,Reactivity,Use ref for primitives,ref() for primitive values that need reactivity,ref() for strings numbers booleans,reactive() for primitives,const count = ref(0),const count = reactive(0),Medium,https://vuejs.org/guide/essentials/reactivity-fundamentals.html
4,Reactivity,Use reactive for objects,reactive() for complex objects and arrays,reactive() for objects with multiple properties,ref() for complex objects,const state = reactive({ user: null }),const state = ref({ user: null }),Medium,
5,Reactivity,Access ref values with .value,Remember .value in script unwrap in template,Use .value in script,Forget .value in script,count.value++,count++ (in script),High,
6,Reactivity,Use computed for derived state,Computed properties cache and update automatically,computed() for derived values,Methods for derived values,const doubled = computed(() => count.value * 2),const doubled = () => count.value * 2,Medium,https://vuejs.org/guide/essentials/computed.html
7,Reactivity,Use shallowRef for large objects,Avoid deep reactivity for performance,shallowRef for large data structures,ref for large nested objects,const bigData = shallowRef(largeObject),const bigData = ref(largeObject),Medium,https://vuejs.org/api/reactivity-advanced.html#shallowref
8,Watchers,Use watchEffect for simple cases,Auto-tracks dependencies,watchEffect for simple reactive effects,watch with explicit deps when not needed,watchEffect(() => console.log(count.value)),"watch(count, (val) => console.log(val))",Low,https://vuejs.org/guide/essentials/watchers.html
9,Watchers,Use watch for specific sources,Explicit control over what to watch,watch with specific refs,watchEffect for complex conditional logic,"watch(userId, fetchUser)",watchEffect with conditionals,Medium,
10,Watchers,Clean up side effects,Return cleanup function in watchers,Return cleanup in watchEffect,Leave subscriptions open,watchEffect((onCleanup) => { onCleanup(unsub) }),watchEffect without cleanup,High,
11,Props,Define props with defineProps,Type-safe prop definitions,defineProps with TypeScript,Props without types,defineProps<{ msg: string }>(),defineProps(['msg']),Medium,https://vuejs.org/guide/typescript/composition-api.html#typing-component-props
12,Props,Use withDefaults for default values,Provide defaults for optional props,withDefaults with defineProps,Defaults in destructuring,"withDefaults(defineProps<Props>(), { count: 0 })",const { count = 0 } = defineProps(),Medium,
13,Props,Avoid mutating props,Props should be read-only,Emit events to parent for changes,Direct prop mutation,"emit('update:modelValue', newVal)",props.modelValue = newVal,High,
14,Emits,Define emits with defineEmits,Type-safe event emissions,defineEmits with types,Emit without definition,defineEmits<{ change: [id: number] }>(),"emit('change', id) without define",Medium,https://vuejs.org/guide/typescript/composition-api.html#typing-component-emits
15,Emits,Use v-model for two-way binding,Simplified parent-child data flow,v-model with modelValue prop,:value + @input manually,"<Child v-model=""value""/>","<Child :value=""value"" @input=""value = $event""/>",Low,https://vuejs.org/guide/components/v-model.html
16,Lifecycle,Use onMounted for DOM access,DOM is ready in onMounted,onMounted for DOM operations,Access DOM in setup directly,onMounted(() => el.value.focus()),el.value.focus() in setup,High,https://vuejs.org/api/composition-api-lifecycle.html
17,Lifecycle,Clean up in onUnmounted,Remove listeners and subscriptions,onUnmounted for cleanup,Leave listeners attached,onUnmounted(() => window.removeEventListener()),No cleanup on unmount,High,
18,Lifecycle,Avoid onBeforeMount for data,Use onMounted or setup for data fetching,Fetch in onMounted or setup,Fetch in onBeforeMount,onMounted(async () => await fetchData()),onBeforeMount(async () => await fetchData()),Low,
19,Components,Use single-file components,Keep template script style together,.vue files for components,Separate template/script files,Component.vue with all parts,Component.js + Component.html,Low,
20,Components,Use PascalCase for components,Consistent component naming,PascalCase in imports and templates,kebab-case in script,<MyComponent/>,<my-component/>,Low,https://vuejs.org/style-guide/rules-strongly-recommended.html
21,Components,Prefer composition over mixins,Composables replace mixins,Composables for shared logic,Mixins for code reuse,const { data } = useApi(),mixins: [apiMixin],Medium,
22,Composables,Name composables with use prefix,Convention for composable functions,useFetch useAuth useForm,getData or fetchApi,export function useFetch(),export function fetchData(),Medium,https://vuejs.org/guide/reusability/composables.html
23,Composables,Return refs from composables,Maintain reactivity when destructuring,Return ref values,Return reactive objects that lose reactivity,return { data: ref(null) },return reactive({ data: null }),Medium,
24,Composables,Accept ref or value params,Use toValue for flexible inputs,toValue() or unref() for params,Only accept ref or only value,const val = toValue(maybeRef),const val = maybeRef.value,Low,https://vuejs.org/api/reactivity-utilities.html#tovalue
25,Templates,Use v-bind shorthand,Cleaner template syntax,:prop instead of v-bind:prop,Full v-bind syntax,"<div :class=""cls"">","<div v-bind:class=""cls"">",Low,
26,Templates,Use v-on shorthand,Cleaner event binding,@event instead of v-on:event,Full v-on syntax,"<button @click=""handler"">","<button v-on:click=""handler"">",Low,
27,Templates,Avoid v-if with v-for,v-if has higher priority causes issues,Wrap in template or computed filter,v-if on same element as v-for,<template v-for><div v-if>,<div v-for v-if>,High,https://vuejs.org/style-guide/rules-essential.html#avoid-v-if-with-v-for
28,Templates,Use key with v-for,Proper list rendering and updates,Unique key for each item,Index as key for dynamic lists,"v-for=""item in items"" :key=""item.id""","v-for=""(item, i) in items"" :key=""i""",High,
29,State,Use Pinia for global state,Official state management for Vue 3,Pinia stores for shared state,Vuex for new projects,const store = useCounterStore(),Vuex with mutations,Medium,https://pinia.vuejs.org/
30,State,Define stores with defineStore,Composition API style stores,Setup stores with defineStore,Options stores for complex state,"defineStore('counter', () => {})","defineStore('counter', { state })",Low,
31,State,Use storeToRefs for destructuring,Maintain reactivity when destructuring,storeToRefs(store),Direct destructuring,const { count } = storeToRefs(store),const { count } = store,High,https://pinia.vuejs.org/core-concepts/#destructuring-from-a-store
32,Routing,Use useRouter and useRoute,Composition API router access,useRouter() useRoute() in setup,this.$router this.$route,const router = useRouter(),this.$router.push(),Medium,https://router.vuejs.org/guide/advanced/composition-api.html
33,Routing,Lazy load route components,Code splitting for routes,() => import() for components,Static imports for all routes,component: () => import('./Page.vue'),component: Page,Medium,https://router.vuejs.org/guide/advanced/lazy-loading.html
34,Routing,Use navigation guards,Protect routes and handle redirects,beforeEach for auth checks,Check auth in each component,router.beforeEach((to) => {}),Check auth in onMounted,Medium,
35,Performance,Use v-once for static content,Skip re-renders for static elements,v-once on never-changing content,v-once on dynamic content,<div v-once>{{ staticText }}</div>,<div v-once>{{ dynamicText }}</div>,Low,https://vuejs.org/api/built-in-directives.html#v-once
36,Performance,Use v-memo for expensive lists,Memoize list items,v-memo with dependency array,Re-render entire list always,"<div v-for v-memo=""[item.id]"">",<div v-for> without memo,Medium,https://vuejs.org/api/built-in-directives.html#v-memo
37,Performance,Use shallowReactive for flat objects,Avoid deep reactivity overhead,shallowReactive for flat state,reactive for simple objects,shallowReactive({ count: 0 }),reactive({ count: 0 }),Low,
38,Performance,Use defineAsyncComponent,Lazy load heavy components,defineAsyncComponent for modals dialogs,Import all components eagerly,defineAsyncComponent(() => import()),import HeavyComponent from,Medium,https://vuejs.org/guide/components/async.html
39,TypeScript,Use generic components,Type-safe reusable components,Generic with defineComponent,Any types in components,"<script setup lang=""ts"" generic=""T"">",<script setup> without types,Medium,https://vuejs.org/guide/typescript/composition-api.html
40,TypeScript,Type template refs,Proper typing for DOM refs,ref<HTMLInputElement>(null),ref(null) without type,const input = ref<HTMLInputElement>(null),const input = ref(null),Medium,
41,TypeScript,Use PropType for complex props,Type complex prop types,PropType<User> for object props,Object without type,type: Object as PropType<User>,type: Object,Medium,
42,Testing,Use Vue Test Utils,Official testing library,mount shallowMount for components,Manual DOM testing,import { mount } from '@vue/test-utils',document.createElement,Medium,https://test-utils.vuejs.org/
43,Testing,Test component behavior,Focus on inputs and outputs,Test props emit and rendered output,Test internal implementation,expect(wrapper.text()).toContain(),expect(wrapper.vm.internalState),Medium,
44,Forms,Use v-model modifiers,Built-in input handling,.lazy .number .trim modifiers,Manual input parsing,"<input v-model.number=""age"">","<input v-model=""age""> then parse",Low,https://vuejs.org/guide/essentials/forms.html#modifiers
45,Forms,Use VeeValidate or FormKit,Form validation libraries,VeeValidate for complex forms,Manual validation logic,useField useForm from vee-validate,Custom validation in each input,Medium,
46,Accessibility,Use semantic elements,Proper HTML elements in templates,button nav main for purpose,div for everything,<button @click>,<div @click>,High,
47,Accessibility,Bind aria attributes dynamically,Keep ARIA in sync with state,":aria-expanded=""isOpen""",Static ARIA values,":aria-expanded=""menuOpen""","aria-expanded=""true""",Medium,
48,SSR,Use Nuxt for SSR,Full-featured SSR framework,Nuxt 3 for SSR apps,Manual SSR setup,npx nuxi init my-app,Custom SSR configuration,Medium,https://nuxt.com/
49,SSR,Handle hydration mismatches,Client/server content must match,ClientOnly for browser-only content,Different content server/client,<ClientOnly><BrowserWidget/></ClientOnly>,<div>{{ Date.now() }}</div>,High,


path: assets/data/web-interface.csv
content: No,Category,Issue,Keywords,Platform,Description,Do,Don't,Code Example Good,Code Example Bad,Severity
1,Accessibility,Icon Button Labels,icon button aria-label,Web,Icon-only buttons must have accessible names,Add aria-label to icon buttons,Icon button without label,"<button aria-label='Close'><XIcon /></button>","<button><XIcon /></button>",Critical
2,Accessibility,Form Control Labels,form input label aria,Web,All form controls need labels or aria-label,Use label element or aria-label,Input without accessible name,"<label for='email'>Email</label><input id='email' />","<input placeholder='Email' />",Critical
3,Accessibility,Keyboard Handlers,keyboard onclick onkeydown,Web,Interactive elements must support keyboard interaction,Add onKeyDown alongside onClick,Click-only interaction,"<div onClick={fn} onKeyDown={fn} tabIndex={0}>","<div onClick={fn}>",High
4,Accessibility,Semantic HTML,semantic button a label,Web,Use semantic HTML before ARIA attributes,Use button/a/label elements,Div with role attribute,"<button onClick={fn}>Submit</button>","<div role='button' onClick={fn}>Submit</div>",High
5,Accessibility,Aria Live,aria-live polite async,Web,Async updates need aria-live for screen readers,Add aria-live='polite' for dynamic content,Silent async updates,"<div aria-live='polite'>{status}</div>","<div>{status}</div> // no announcement",Medium
6,Accessibility,Decorative Icons,aria-hidden decorative icon,Web,Decorative icons should be hidden from screen readers,Add aria-hidden='true' to decorative icons,Decorative icon announced,"<Icon aria-hidden='true' />","<Icon /> // announced as 'image'",Medium
7,Focus,Visible Focus States,focus-visible outline ring,Web,All interactive elements need visible focus states,Use :focus-visible with ring/outline,No focus indication,"focus-visible:ring-2 focus-visible:ring-blue-500","outline-none // no replacement",Critical
8,Focus,Never Remove Outline,outline-none focus replacement,Web,Never remove outline without providing replacement,Replace outline with visible alternative,Remove outline completely,"focus:outline-none focus:ring-2","focus:outline-none // nothing else",Critical
9,Focus,Checkbox Radio Hit Target,checkbox radio label target,Web,Checkbox/radio must share hit target with label,Wrap input and label together,Separate tiny checkbox,"<label class='flex gap-2'><input type='checkbox' /><span>Option</span></label>","<input type='checkbox' id='x' /><label for='x'>Option</label>",Medium
10,Forms,Autocomplete Attribute,autocomplete input form,Web,Inputs need autocomplete attribute for autofill,Add appropriate autocomplete value,Missing autocomplete,"<input autocomplete='email' type='email' />","<input type='email' />",High
11,Forms,Semantic Input Types,input type email tel url,Web,Use semantic input type attributes,Use email/tel/url/number types,text type for everything,"<input type='email' />","<input type='text' /> // for email",Medium
12,Forms,Never Block Paste,paste onpaste password,Web,Never prevent paste functionality,Allow paste on all inputs,Block paste on password/code,"<input type='password' />","<input onPaste={e => e.preventDefault()} />",High
13,Forms,Spellcheck Disable,spellcheck email code,Web,Disable spellcheck on emails and codes,Set spellcheck='false' on codes,Spellcheck on technical input,"<input spellCheck='false' type='email' />","<input type='email' /> // red squiggles",Low
14,Forms,Submit Button Enabled,submit button disabled loading,Web,Keep submit enabled and show spinner during requests,Show loading spinner keep enabled,Disable button during submit,"<button>{loading ? <Spinner /> : 'Submit'}</button>","<button disabled={loading}>Submit</button>",Medium
15,Forms,Inline Errors,error message inline focus,Web,Show error messages inline near the problem field,Inline error with focus on first error,Single error at top,"<input /><span class='text-red-500'>{error}</span>","<div class='error'>{allErrors}</div> // at top",High
16,Performance,Virtualize Lists,virtualize list 50 items,Web,Virtualize lists exceeding 50 items,Use virtual list for large datasets,Render all items,"<VirtualList items={items} />","items.map(item => <Item />)",High
17,Performance,Avoid Layout Reads,layout read render getboundingclientrect,Web,Avoid layout reads during render phase,Read layout in effects or callbacks,getBoundingClientRect in render,"useEffect(() => { el.getBoundingClientRect() })","const rect = el.getBoundingClientRect() // in render",Medium
18,Performance,Batch DOM Operations,batch dom write read,Web,Group DOM operations to minimize reflows,Batch writes then reads,Interleave reads and writes,"writes.forEach(w => w()); reads.forEach(r => r())","write(); read(); write(); read(); // thrashing",Medium
19,Performance,Preconnect CDN,preconnect link cdn,Web,Add preconnect links for CDN domains,Preconnect to known domains,"<link rel='preconnect' href='https://cdn.example.com' />","// no preconnect hint",Low
20,Performance,Lazy Load Images,lazy loading image below-fold,Web,Lazy-load images below the fold,Use loading='lazy' for below-fold images,Load all images eagerly,"<img loading='lazy' src='...' />","<img src='...' /> // above fold only",Medium
21,State,URL Reflects State,url state query params,Web,URL should reflect current UI state,Sync filters/tabs/pagination to URL,State only in memory,"?tab=settings&page=2","useState only // lost on refresh",High
22,State,Deep Linking,deep link stateful component,Web,Stateful components should support deep-linking,Enable sharing current view via URL,No shareable state,"router.push({ query: { ...filters } })","setFilters(f) // not in URL",Medium
23,State,Confirm Destructive Actions,confirm destructive delete modal,Web,Destructive actions require confirmation,Show confirmation dialog before delete,Delete without confirmation,"if (confirm('Delete?')) delete()","onClick={delete} // no confirmation",High
24,Typography,Proper Unicode,unicode ellipsis quotes,Web,Use proper Unicode characters,Use ... curly quotes proper dashes,ASCII approximations,"'Hello...' with proper ellipsis","'Hello...' with three dots",Low
25,Typography,Text Overflow,truncate line-clamp overflow,Web,Handle text overflow properly,Use truncate/line-clamp/break-words,Text overflows container,"<p class='truncate'>Long text...</p>","<p>Long text...</p> // overflows",Medium
26,Typography,Non-Breaking Spaces,nbsp unit brand,Web,Use non-breaking spaces for units and brand names,Use &nbsp; between number and unit,"10&nbsp;kg or Next.js&nbsp;14","10 kg // may wrap",Low
27,Anti-Pattern,No Zoom Disable,viewport zoom disable,Web,Never disable zoom in viewport meta,Allow user zoom,"<meta name='viewport' content='width=device-width'>","<meta name='viewport' content='maximum-scale=1'>",Critical
28,Anti-Pattern,No Transition All,transition all specific,Web,Avoid transition: all - specify properties,Transition specific properties,transition: all,"transition-colors duration-200","transition-all duration-200",Medium
29,Anti-Pattern,Outline Replacement,outline-none ring focus,Web,Never use outline-none without replacement,Provide visible focus replacement,Remove outline with nothing,"focus:outline-none focus:ring-2 focus:ring-blue-500","focus:outline-none // alone",Critical
30,Anti-Pattern,No Hardcoded Dates,date format intl locale,Web,Use Intl for date/number formatting,Use Intl.DateTimeFormat,Hardcoded date format,"new Intl.DateTimeFormat('en').format(date)","date.toLocaleDateString() // or manual format",Medium


path: data/charts.csv
content: No,Data Type,Keywords,Best Chart Type,Secondary Options,Color Guidance,Performance Impact,Accessibility Notes,Library Recommendation,Interactive Level
1,Trend Over Time,"trend, time-series, line, growth, timeline, progress",Line Chart,"Area Chart, Smooth Area",Primary: #0080FF. Multiple series: use distinct colors. Fill: 20% opacity,⚡ Excellent (optimized),✓ Clear line patterns for colorblind users. Add pattern overlays.,"Chart.js, Recharts, ApexCharts",Hover + Zoom
2,Compare Categories,"compare, categories, bar, comparison, ranking",Bar Chart (Horizontal or Vertical),"Column Chart, Grouped Bar",Each bar: distinct color. Category: grouped same color. Sorted: descending order,⚡ Excellent,✓ Easy to compare. Add value labels on bars for clarity.,"Chart.js, Recharts, D3.js",Hover + Sort
3,Part-to-Whole,"part-to-whole, pie, donut, percentage, proportion, share",Pie Chart or Donut,"Stacked Bar, Treemap",Colors: 5-6 max. Contrasting palette. Large slices first. Use labels.,⚡ Good (limit 6 slices),⚠ Hard for accessibility. Better: Stacked bar with legend. Avoid pie if >5 items.,"Chart.js, Recharts, D3.js",Hover + Drill
4,Correlation/Distribution,"correlation, distribution, scatter, relationship, pattern",Scatter Plot or Bubble Chart,"Heat Map, Matrix",Color axis: gradient (blue-red). Size: relative. Opacity: 0.6-0.8 to show density,⚠ Moderate (many points),⚠ Provide data table alternative. Use pattern + color distinction.,"D3.js, Plotly, Recharts",Hover + Brush
5,Heatmap/Intensity,"heatmap, heat-map, intensity, density, matrix",Heat Map or Choropleth,"Grid Heat Map, Bubble Heat",Gradient: Cool (blue) to Hot (red). Scale: clear legend. Divergent for ±data,⚡ Excellent (color CSS),⚠ Colorblind: Use pattern overlay. Provide numerical legend.,"D3.js, Plotly, ApexCharts",Hover + Zoom
6,Geographic Data,"geographic, map, location, region, geo, spatial","Choropleth Map, Bubble Map",Geographic Heat Map,Regional: single color gradient or categorized colors. Legend: clear scale,⚠ Moderate (rendering),⚠ Include text labels for regions. Provide data table alternative.,"D3.js, Mapbox, Leaflet",Pan + Zoom + Drill
7,Funnel/Flow,funnel/flow,"Funnel Chart, Sankey",Waterfall (for flows),Stages: gradient (starting color → ending color). Show conversion %,⚡ Good,✓ Clear stage labels + percentages. Good for accessibility if labeled.,"D3.js, Recharts, Custom SVG",Hover + Drill
8,Performance vs Target,performance-vs-target,Gauge Chart or Bullet Chart,"Dial, Thermometer",Performance: Red→Yellow→Green gradient. Target: marker line. Threshold colors,⚡ Good,✓ Add numerical value + percentage label beside gauge.,"D3.js, ApexCharts, Custom SVG",Hover
9,Time-Series Forecast,time-series-forecast,Line with Confidence Band,Ribbon Chart,Actual: solid line #0080FF. Forecast: dashed #FF9500. Band: light shading,⚡ Good,✓ Clearly distinguish actual vs forecast. Add legend.,"Chart.js, ApexCharts, Plotly",Hover + Toggle
10,Anomaly Detection,anomaly-detection,Line Chart with Highlights,Scatter with Alert,Normal: blue #0080FF. Anomaly: red #FF0000 circle/square marker + alert,⚡ Good,✓ Circle/marker for anomalies. Add text alert annotation.,"D3.js, Plotly, ApexCharts",Hover + Alert
11,Hierarchical/Nested Data,hierarchical/nested-data,Treemap,"Sunburst, Nested Donut, Icicle",Parent: distinct hues. Children: lighter shades. White borders 2-3px.,⚠ Moderate,⚠ Poor - provide table alternative. Label large areas.,"D3.js, Recharts, ApexCharts",Hover + Drilldown
12,Flow/Process Data,flow/process-data,Sankey Diagram,"Alluvial, Chord Diagram",Gradient from source to target. Opacity 0.4-0.6 for flows.,⚠ Moderate,⚠ Poor - provide flow table alternative.,"D3.js (d3-sankey), Plotly",Hover + Drilldown
13,Cumulative Changes,cumulative-changes,Waterfall Chart,"Stacked Bar, Cascade",Increases: #4CAF50. Decreases: #F44336. Start: #2196F3. End: #0D47A1.,⚡ Good,✓ Good - clear directional colors with labels.,"ApexCharts, Highcharts, Plotly",Hover
14,Multi-Variable Comparison,multi-variable-comparison,Radar/Spider Chart,"Parallel Coordinates, Grouped Bar",Single: #0080FF 20% fill. Multiple: distinct colors per dataset.,⚡ Good,⚠ Moderate - limit 5-8 axes. Add data table.,"Chart.js, Recharts, ApexCharts",Hover + Toggle
15,Stock/Trading OHLC,stock/trading-ohlc,Candlestick Chart,"OHLC Bar, Heikin-Ashi",Bullish: #26A69A. Bearish: #EF5350. Volume: 40% opacity below.,⚡ Good,⚠ Moderate - provide OHLC data table.,"Lightweight Charts (TradingView), ApexCharts",Real-time + Hover + Zoom
16,Relationship/Connection Data,relationship/connection-data,Network Graph,"Hierarchical Tree, Adjacency Matrix",Node types: categorical colors. Edges: #90A4AE 60% opacity.,❌ Poor (500+ nodes struggles),❌ Very Poor - provide adjacency list alternative.,"D3.js (d3-force), Vis.js, Cytoscape.js",Drilldown + Hover + Drag
17,Distribution/Statistical,distribution/statistical,Box Plot,"Violin Plot, Beeswarm",Box: #BBDEFB. Border: #1976D2. Median: #D32F2F. Outliers: #F44336.,⚡ Excellent,"✓ Good - include stats table (min, Q1, median, Q3, max).","Plotly, D3.js, Chart.js (plugin)",Hover
18,Performance vs Target (Compact),performance-vs-target-(compact),Bullet Chart,"Gauge, Progress Bar","Ranges: #FFCDD2, #FFF9C4, #C8E6C9. Performance: #1976D2. Target: black 3px.",⚡ Excellent,✓ Excellent - compact with clear values.,"D3.js, Plotly, Custom SVG",Hover
19,Proportional/Percentage,proportional/percentage,Waffle Chart,"Pictogram, Stacked Bar 100%",10x10 grid. 3-5 categories max. 2-3px spacing between squares.,⚡ Good,✓ Good - better than pie for accessibility.,"D3.js, React-Waffle, Custom CSS Grid",Hover
20,Hierarchical Proportional,hierarchical-proportional,Sunburst Chart,"Treemap, Icicle, Circle Packing",Center to outer: darker to lighter. 15-20% lighter per level.,⚠ Moderate,⚠ Poor - provide hierarchy table alternative.,"D3.js (d3-hierarchy), Recharts, ApexCharts",Drilldown + Hover
21,Root Cause Analysis,"root cause, decomposition, tree, hierarchy, drill-down, ai-split",Decomposition Tree,"Decision Tree, Flow Chart",Nodes: #2563EB (Primary) vs #EF4444 (Negative impact). Connectors: Neutral grey.,⚠ Moderate (calculation heavy),✓ clear hierarchy. Allow keyboard navigation for nodes.,"Power BI (native), React-Flow, Custom D3.js",Drill + Expand
22,3D Spatial Data,"3d, spatial, immersive, terrain, molecular, volumetric",3D Scatter/Surface Plot,"Volumetric Rendering, Point Cloud",Depth cues: lighting/shading. Z-axis: color gradient (cool to warm).,❌ Heavy (WebGL required),❌ Poor - requires alternative 2D view or data table.,"Three.js, Deck.gl, Plotly 3D",Rotate + Zoom + VR
23,Real-Time Streaming,"streaming, real-time, ticker, live, velocity, pulse",Streaming Area Chart,"Ticker Tape, Moving Gauge",Current: Bright Pulse (#00FF00). History: Fading opacity. Grid: Dark.,⚡ Optimized (canvas/webgl),⚠ Flashing elements - provide pause button. High contrast.,Smoothed D3.js, CanvasJS
24,Sentiment/Emotion,"sentiment, emotion, nlp, opinion, feeling",Word Cloud with Sentiment,"Sentiment Arc, Radar Chart",Positive: #22C55E. Negative: #EF4444. Neutral: #94A3B8. Size = Frequency.,⚡ Good,⚠ Word clouds poor for screen readers. Use list view.,"D3-cloud, Highcharts, Nivo",Hover + Filter
25,Process Mining,"process, mining, variants, path, bottleneck, log",Process Map / Graph,"Directed Acyclic Graph (DAG), Petri Net",Happy path: #10B981 (Thick). Deviations: #F59E0B (Thin). Bottlenecks: #EF4444.,⚠ Moderate to Heavy,⚠ Complex graphs hard to navigate. Provide path summary.,"React-Flow, Cytoscape.js, Recharts",Drag + Node-Click


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