{"slug": "layr-a-modular-ux-and-product-constraint-system-for-ai-built-interfaces", "title": "Layr – a modular UX and product constraint system for AI-built interfaces", "summary": "Layr, a modular production system for AI-built interfaces, enables developers to turn UX, design, accessibility, security, and other principles into enforceable constraints, reducing friction and improving usability. The system works with tools like Claude and Cursor, requiring zero setup, and provides structured prompts to guide AI in generating production-ready apps. Layr aims to solve common issues in AI-generated interfaces such as weak hierarchy and excessive decision-making.", "body_md": "A modular production system for turning AI-built interfaces into production-grade apps. Layr turns proven UX, design, accessibility, security, performance, SEO, CRO, marketing, and copywriting principles into enforceable constraints that reduce friction, build trust, and drive action.\n\nWorks with Claude, Cursor, and other agentic development tools.\n\nTurn typical AI output into a clearer, more usable, more production-ready interface.\n\nLayr works with zero setup.\n\nStart with Option 1. If your tool cannot read GitHub URLs, use Option 2.\n\nUse this when your tool can read GitHub URLs.\n\nCopy this prompt, paste it into your tool, then replace the task line with your own request:\n\n```\nUse https://github.com/layr-hq/layr as the production system for AI-built apps.\n\nRead SYSTEM.md first, then RUN.md, then follow them.\n\nScope: Auto\nDepth: Standard\n\nTask:\nImprove the pricing page so users can choose a plan faster.\n```\n\nUse this when your tool works best with local files or cannot reliably read GitHub URLs.\n\n- Download or clone this repo into your project root as\n`layr`\n\n. - Copy this prompt and paste it into your tool.\n- Replace the task line with your own request.\n\n```\nUse ./layr/RUN.md for this task.\nRead ./layr/SYSTEM.md first, then ./layr/RUN.md, then follow them.\n\nScope: Auto\nDepth: Standard\n\nTask:\nImprove the pricing page so users can choose a plan faster.\n```\n\nThis is optional. Use it when you want stronger product and brand fit.\n\n- Copy this file:\n\n```\nlayr/layr.config.example.md\n```\n\n- Rename the copy to:\n\n```\nlayr/layr.config.md\n```\n\n- Fill only what you know. Leave the rest blank.\n\nDo not edit `modules/`\n\n, `methods/`\n\n, or `RUN.md`\n\n.\n\nThis is optional. Use it for important screens where precision matters.\n\n- Copy the screen template:\n\n```\nlayr/screens/screen-template.md\n```\n\n- Rename the copy to match the screen:\n\n```\nlayr/screens/pricing.md\nlayr/screens/onboarding.md\nlayr/screens/dashboard.md\n```\n\n- Fill only the fields that materially affect the result.\n\n“Create a dashboard for a project management app”\n\n→ Layr selects the relevant modules and improves the output against production rules.\n\n[What this is](#what-this-is)[What it’s based on / Methods](#what-its-based-on--methods)[Why it matters](#why-it-matters)[How the system works](#how-the-system-works)[System kernel](#system-kernel)[Surface playbooks](#surface-playbooks)[Quality modes](#quality-modes)[Module system](#module-system)[Instructions](#instructions)[Files](#files)[Version history](#version-history)[Goal](#goal)[License](#license)\n\nLayr is a rule-based production system for AI-built software.\n\nIt gives agentic tools a structured way to select the right product modules, apply proven methods, score the result, and improve weak areas before the output ships.\n\n- Hick’s Law - reduce choices\n- Cognitive Load - reduce thinking\n- Fitts’s Law - make actions easier\n- Jakob’s Law - use familiar patterns\n- Peak-End Rule - improve memorable moments\n- Goal Gradient - show progress\n- Gestalt - create clear structure\n- Signal vs Noise - remove clutter\n- Default Bias - guide decisions\n- Colour Theory - guide attention\n- Typography - improve readability\n- Spacing Rhythm - clarify structure\n- Accessibility - make interfaces usable for more people\n- Security - catch unsafe patterns before shipping\n- Performance - keep the product fast and stable\n- Analytics - measure behaviour and product learning\n- QA - catch edge cases and release risks\n- AI Product - make AI features trustworthy and controllable\n- CRO - reduce friction and increase action\n- SEO and AI Search - make content easier for search engines and AI systems to understand\n- Marketing - sharpen positioning and value communication\n- Copywriting - make messages clear, specific, and persuasive\n- and more\n\nMost tools know these ideas. Layr makes them operational.\n\nAI can generate working screens quickly, but working is not the same as production-ready.\n\nWithout a system, AI output often has:\n\n- weak hierarchy\n- too many decisions\n- unclear flows\n- inconsistent design\n- missing accessibility\n- fragile security\n- poor performance\n- weak conversion paths\n- vague copy\n\nLayr pushes the AI toward:\n\n- clarity\n- speed\n- trust\n- accessibility\n- measurable behaviour\n- obvious next steps\n- production quality\n\nBuild with real production standards, not AI guesses.\n\n``` php\nflowchart TD\n    A[\"Task or repo URL\"] --> B{\"Optional context?\"}\n    B -- \"No setup\" --> C[\"Infer from task + codebase\"]\n    B -- \"Config or screen brief\" --> D[\"Read layr.config.md / screens\"]\n    C --> E[\"Scope + depth control\"]\n    D --> E\n    E --> F[\"Selected module rules\"]\n    F --> G[\"Methods index + selected methods\"]\n    G --> H[\"Build or improve interface\"]\n    H --> I[\"Scorecard with evidence\"]\n    I --> J{\"Score >= 85?\"}\n    J -- \"No\" --> K[\"Improve weak areas\"]\n    K --> I\n    J -- \"Yes\" --> L[\"Clear, usable output\"]\n\n    classDef input fill:#0f172a,stroke:#64748b,color:#f8fafc;\n    classDef rules fill:#111827,stroke:#818cf8,color:#f8fafc;\n    classDef action fill:#172554,stroke:#60a5fa,color:#f8fafc;\n    classDef decision fill:#312e81,stroke:#a5b4fc,color:#f8fafc;\n    classDef output fill:#064e3b,stroke:#34d399,color:#ecfdf5;\n\n    class A,C,D input;\n    class E,F,G rules;\n    class H,I,K action;\n    class B,J decision;\n    class L output;\n```\n\n| Mode | Best for | What the user provides | Quality |\n|---|---|---|---|\n| Zero setup | Trying Layr quickly, simple fixes, reviews | Task only | Strong production improvement |\n| Recommended | Real product work | Task + optional `layr.config.md` |\nBetter product, user, and brand fit |\n| Screen-level | High-value screens and flows | Task + config + optional screen brief | Highest precision |\n\nLayr should never block on missing context unless the missing detail would materially change the product direction.\n\nIf context is missing, Layr should infer it and state assumptions briefly.\n\n`SYSTEM.md`\n\nis Layr's central operating layer.\n\nIt defines how the system selects surface types, loads playbooks, applies hard gates, resolves method conflicts, and keeps recommendations tied to evidence.\n\nThe kernel improves consistency across tasks by requiring every recommendation to connect to at least one of:\n\n- a selected Layr module\n- a selected Layr method\n- an observed product issue\n- a scorecard hard gate\n- a measurable production risk\n\nThis keeps Layr science backed, evidence driven, and focused on production quality rather than taste.\n\nSurface playbooks make Layr practical for common production work.\n\nThey define the required modules, recommended methods, hard gates, production rules, failure patterns, and evidence requirements for each major surface.\n\nCurrent playbooks cover:\n\n- pricing\n- signup and onboarding\n- dashboards and workspaces\n- forms and settings\n- checkout and upgrade\n- public pages and docs\n- AI features\n\nSurface scorecards in `scorecards/`\n\nmake scoring more specific and consistent for each surface.\n\nLayr started with UX and Design because that is where AI-built products usually break first: unclear flows, weak hierarchy, messy screens, and interfaces that work but do not feel production-ready.\n\nLayr now works as a broader production layer for AI-built software.\n\nActive modules cover UX, Design, Accessibility, Security, Performance, Analytics, QA, AI Product, CRO, SEO, Marketing, and Copywriting.\n\nAI Search is supported through the SEO module when the task involves AI answers, retrieval visibility, GEO, ChatGPT search, Copilot visibility, or answer-engine discoverability.\n\nThe system is designed so new modules can be added without making Layr harder to use.\n\nThe prompt stays simple:\n\n```\nUse Layr for this task.\n\nScope: Auto\nDepth: Standard\n```\n\nLayr chooses the relevant active modules automatically, so you don't have to understand the whole system.\n\nSee `ROADMAP.md`\n\nfor the planned module direction.\n\nUse this system to build, review, or improve generated product work until it is clearer, safer, faster, more accessible, more measurable, and more production-ready.\n\nIf your tool can read GitHub URLs, copy this prompt and paste it into your tool:\n\n```\nUse https://github.com/layr-hq/layr as the production system for AI-built apps.\nRead SYSTEM.md first, then RUN.md, then follow them.\n\nScope: Auto\nDepth: Standard\n\nTask:\nImprove the pricing page so users can choose a plan faster.\n```\n\nIf your tool cannot read GitHub URLs, download or clone this repo into your project root as `layr`\n\n.\n\nThen copy this prompt and paste it into your tool:\n\n```\nUse ./layr/RUN.md for this task.\nRead ./layr/SYSTEM.md first, then ./layr/RUN.md, then follow them.\n\nScope: Auto\nDepth: Standard\n\nTask:\nImprove the pricing page so users can choose a plan faster.\n```\n\nIf your tool cannot read GitHub URLs reliably, use the local folder option.\n\nReplace the example task with what you want the AI to build, fix, review, or improve.\n\nGood:\n\n```\nImprove the pricing page so users can choose a plan faster.\n```\n\nBetter:\n\n```\nImprove the pricing page for early-stage SaaS founders.\nThe primary action is starting a free trial.\nPreserve the existing design system.\n```\n\nThis step is optional.\n\nFor better product fit, copy `layr.config.example.md`\n\n, rename the copy to `layr.config.md`\n\n, and fill only what you know.\n\nMinimum useful context:\n\n```\nProduct name:\nPrimary user:\nCore user goal:\nPrimary product action:\nDesign source:\n```\n\nThis is optional. Layr still works without it.\n\nThis step is optional.\n\nFor important screens, copy `layr/screens/screen-template.md`\n\n, rename the copy, and fill only what matters.\n\nMinimum useful screen context:\n\n```\nScreen name:\nUser intent:\nPrimary goal:\nPrimary action:\n```\n\nThis is optional. Layr should infer missing screen context from the task and codebase.\n\nLayr will:\n\n- read the system kernel\n- load the relevant surface playbook\n- read Layr rules\n- select relevant methods\n- infer missing context when safe\n- ask at most 3 questions only when context is truly blocking\n- build, review, or improve the product surface\n- score the result with evidence\n- fix weak areas\n- repeat until the output scores at least 85\n\n| File | Purpose | User edits? |\n|---|---|---|\n`SYSTEM.md` |\nCentral operating layer for surface selection, hard gates, conflict rules, and evidence standards | No |\n`RUN.md` |\nMain execution entry point for agentic tools | No |\n`playbooks/index.md` |\nSurface playbook routing | No |\n`playbooks/*.md` |\nProduction playbooks for common product surfaces | No |\n`modules/index.md` |\nActive and planned module routing | No |\n`modules/ux.md` |\nUX behaviour, rules, scoring, and validation | No |\n`modules/design.md` |\nLayout, hierarchy, spacing, and visual clarity | No |\n`modules/accessibility.md` |\nAccessibility rules and validation | No |\n`modules/security.md` |\nSecurity rules and risk checks | No |\n`modules/performance.md` |\nPerformance rules and interaction checks | No |\n`modules/analytics.md` |\nMeasurement and event tracking rules | No |\n`modules/qa.md` |\nQA, edge case, and release readiness rules | No |\n`modules/ai.md` |\nAI product behaviour and trust rules | No |\n`modules/cro.md` |\nConversion and friction reduction rules | No |\n`modules/seo.md` |\nSEO and AI Search rules | No |\n`modules/marketing.md` |\nPositioning and messaging rules | No |\n`modules/copywriting.md` |\nCopy clarity and persuasion rules | No |\n`methods/index.md` |\nRoutes relevant methods by scope, surface, and problem | No |\n`methods/*/*.md` |\nScience-backed production methods by module | No |\n`scorecard.md` |\nEvidence-based UX scoring | No |\n`scorecards/index.md` |\nSurface-specific scorecard routing | No |\n`scorecards/*.md` |\nSurface-specific evidence scoring templates | No |\n`layr.config.example.md` |\nOptional product context template | Copy to `layr.config.md` |\n`screens/screen-template.md` |\nOptional screen brief template | Copy for important screens |\n`prompts/master.md` |\nCompatibility prompt for users who prefer `/prompts` |\nNo |\n`ROADMAP.md` |\nFuture module direction | No |\n`CHANGELOG.md` |\nVersion history and release notes | No |\n\nSee `CHANGELOG.md`\n\nfor version history.\n\nThe end user should:\n\n- understand instantly\n- know exactly what to do\n- take action without hesitation\n- never feel confused or overwhelmed\n- move through the flow with minimal effort\n- reach value as quickly as possible\n\nThe experience should feel:\n\n- obvious\n- fast\n- clear\n- predictable\n- low effort\n\nIf the user has to:\n\n- think\n- re-read\n- hesitate\n- search for what to do\n\nIt failed.\n\nFree to use in personal and commercial projects.\n\nNot allowed to resell or redistribute this as a standalone product.\n\nBuild with real production standards, not AI guesses.", "url": "https://wpnews.pro/news/layr-a-modular-ux-and-product-constraint-system-for-ai-built-interfaces", "canonical_source": "https://github.com/layr-hq/layr", "published_at": "2026-06-18 14:39:39+00:00", "updated_at": "2026-06-18 14:54:00.626274+00:00", "lang": "en", "topics": ["ai-tools", "developer-tools", "ai-products", "ai-agents"], "entities": ["Layr", "Claude", "Cursor", "GitHub"], "alternates": {"html": "https://wpnews.pro/news/layr-a-modular-ux-and-product-constraint-system-for-ai-built-interfaces", "markdown": "https://wpnews.pro/news/layr-a-modular-ux-and-product-constraint-system-for-ai-built-interfaces.md", "text": "https://wpnews.pro/news/layr-a-modular-ux-and-product-constraint-system-for-ai-built-interfaces.txt", "jsonld": "https://wpnews.pro/news/layr-a-modular-ux-and-product-constraint-system-for-ai-built-interfaces.jsonld"}}