Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
npx skills add khadinakbarlabs/shopify-app-builder --skill ux-modern-app-feelgit clone --depth 1 https://github.com/khadinakbarlabs/shopify-app-builderWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/skills/khadinakbarlabs/shopify-app-builder/ux-modern-app-feel)<a href="https://agentmods.dev/skills/khadinakbarlabs/shopify-app-builder/ux-modern-app-feel"><img src="https://agentmods.dev/badge/skills/khadinakbarlabs/shopify-app-builder/ux-modern-app-feel/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/skills/khadinakbarlabs/shopify-app-builder/ux-modern-app-feel"><img src="https://agentmods.dev/badge/skills/khadinakbarlabs/shopify-app-builder/ux-modern-app-feel.svg" alt="Reviewed on agentmods" width="80" height="20"></a>What it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00162 | $0.07992 |
| Opus 5 | $0.00081 | $0.03996 |
| Sonnet 5 | $0.00032 | $0.01598 |
| Haiku 4.5 | $0.00016 | $0.00799 |
Grade A, and why
ux-modern-app-feel scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 11d ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
How it starts
The opening of the file, as written. The whole thing — 741 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Modern App Feel for Shopify Embedded Apps
Most Shopify apps feel like 2015 — wall-of-settings, slow page loads, mouse-only, no keyboard, no taste. The modern reference is Linear, Notion, Vercel, Cron, Raycast, Superhuman, Arc — apps that feel calm, instant, opinionated, and keyboard-first. This skill is how to bring that feel inside Polaris and App Bridge 4.x without breaking the Built for Shopify (BFS) badge or merchant expectations.
The premise: Polaris is the floor, not the ceiling. You can absolutely build a Linear-tier embedded app within Polaris — you just have to be deliberate about the seven things that actually make an app feel modern, and ruthless about everything else.
When to Use This Skill
Use when:
- Building a new Shopify embedded app and you want it to feel categorically better than the competitor apps in the same category
- Refactoring an existing app that feels slow, cluttered, or "Shopify-default" with no taste
- Asked "how do I make this feel more like Linear / Notion / Vercel inside a Shopify app"
- Adding keyboard shortcuts, a command palette, optimistic UI, or other speed-feel patterns to an embedded app
- Deciding between dense vs spacious layouts for a merchant-facing dashboard
- Asked about brand expression — when can you override Polaris colors, and when shouldn't you
- About to ship an "infinite settings" page and want the heuristic for whether each setting earns its place
- Considering a custom design system on top of Polaris (almost always wrong — this skill explains why)
Do NOT use when:
- Building a checkout extension or storefront block — those have their own constraints (Checkout UI Extensions, theme app extensions)
- Building a non-embedded surface (POS, mobile app shell)
- The merchant has explicitly asked for a Shopify-default-looking app for trust reasons (rare, but real for some legal/finance apps)
The Six Modern SaaS UX Principles (And How Each Lands Inside Polaris)
Every modern SaaS app worth copying — Linear, Notion, Vercel, Cron, Raycast, Superhuman, Arc — converges on these six principles. The trick is translating each into something Polaris-compliant.
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- 11d ago First seen · 741 lines · 162 tokens per session scan A e2f0833a9ca8
ux-modern-app-feel is a skill published in the GitHub repository khadinakbarlabs/shopify-app-builder (1 stars, last pushed 1mo ago), licensed MIT. It adds 162 tokens to every session and 7,992 once invoked, about $0.0008 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.
Other skills, from other repositories
interaction-skill
Layer A interaction-mechanics reference anchored to the beui.dev catalog. Stacks on any style skill whenever work adds or changes motion or interaction — micro-interactions, animated components, transitions, gestures, hover/press/state feedback, loading/success/error morphs, 'make it feel alive'. Mandates reading the…
layout-skill
Layer A layout-mechanics reference. Stacks on any style skill when the screen is an app shell, dashboard, settings, list-detail, mail/inbox, or any layout with fixed regions plus a scrolling body — or when a layout breaks under long, empty, or unbroken content. Owns spatial structure and scroll ownership; owns zero…
ui-designer
Elite UI/UX Design Lead & Frontend Architect. Generates distinctive, non-templated interfaces with opinionated aesthetics, deliberate typography, and exact UX copy. Triggers on UI design, frontend styling, or layout creation.
impeccable
Use when the user wants to design, redesign, shape, critique, audit, polish, clarify, distill, harden, optimize, adapt, animate, colorize, extract, or otherwise improve a frontend interface. Covers websites, landing pages, dashboards, product UI, app shells, components, forms, settings, onboarding, and empty states.…
21st-ui
Find, install, and generate UI with 21st.dev. Use when the user asks for a UI component (pricing table, hero, navbar, dashboard, form, etc.), wants design inspiration, needs a brand logo as an SVG component, or wants to generate new UI from a prompt.
frontend
Builds, styles, and polishes web UI and UX. Use for any frontend, page, component, styling, layout, animation, or visual-quality task, or when asked to make an interface look or feel a certain way.