Getting it into your agent
It runs from inside its repository, so the clone comes first — what it calls does not travel with the file alone.
git clone --depth 1 https://github.com/ww-w-ai/bkit-claude-codenpx agentmods add skills/ww-w-ai/bkit-claude-code/phase-5-design-systemWrote 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/ww-w-ai/bkit-claude-code/phase-5-design-system)<a href="https://agentmods.dev/skills/ww-w-ai/bkit-claude-code/phase-5-design-system"><img src="https://agentmods.dev/badge/skills/ww-w-ai/bkit-claude-code/phase-5-design-system/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/ww-w-ai/bkit-claude-code/phase-5-design-system"><img src="https://agentmods.dev/badge/skills/ww-w-ai/bkit-claude-code/phase-5-design-system.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector warn
SkillSpector: 5 findings, up to medium
These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →
- medium MCP Rug Pull · line 124 npx commands without a version suffix (e.g. @1.0.0) create a rug-pull risk if the upstream server is compromised and publishes a malicious update.Fix: Pin the version: npx @scope/[email protected]
- medium MCP Rug Pull · line 127 npx commands without a version suffix (e.g. @1.0.0) create a rug-pull risk if the upstream server is compromised and publishes a malicious update.Fix: Pin the version: npx @scope/[email protected]
- medium MCP Rug Pull · line 128 npx commands without a version suffix (e.g. @1.0.0) create a rug-pull risk if the upstream server is compromised and publishes a malicious update.Fix: Pin the version: npx @scope/[email protected]
- medium MCP Rug Pull · line 129 npx commands without a version suffix (e.g. @1.0.0) create a rug-pull risk if the upstream server is compromised and publishes a malicious update.Fix: Pin the version: npx @scope/[email protected]
- medium MCP Rug Pull · line 464 npx commands without a version suffix (e.g. @1.0.0) create a rug-pull risk if the upstream server is compromised and publishes a malicious update.Fix: Pin the version: npx @scope/[email protected]
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 | $0.00044 | $0.03384 |
| Opus 5.5 | $0.00018 | $0.01354 |
| Sonnet 5.5 | $0.00009 | $0.00677 |
| Haiku 4.5 | $0.00004 | $0.00338 |
Grade A, and why
phase-5-design-system 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 2mo 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 — 513 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Phase 5: Design System
Build platform-independent design system
Purpose
Build a reusable UI component library. Enable consistent design and fast development.
What is a Design System?
Definition
A design system is a collection of reusable components and clear standards that enables building consistent user experiences at scale.
Why is it Needed? (Framework Agnostic)
| Problem | Design System Solution |
|---|---|
| Designer-developer mismatch | Single Source of Truth |
| Duplicate component development | Reusable component library |
| Inconsistent UI/UX | Unified design tokens and rules |
| Increased maintenance cost | Centralized change management |
| Delayed new member onboarding | Documented component catalog |
3 Layers of Design System
┌─────────────────────────────────────────────────────┐
│ Design Tokens │
│ Color, Typography, Spacing, Radius, Shadow, ... │
├─────────────────────────────────────────────────────┤
│ Core Components │
│ Button, Input, Card, Dialog, Avatar, Badge, ... │
├─────────────────────────────────────────────────────┤
│ Composite Components │
│ Form, DataTable, Navigation, SearchBar, ... │
└─────────────────────────────────────────────────────┘
Platform-specific Implementation Tools
| Platform | Recommended Tools | Design Token Method |
|---|---|---|
| Web (React/Next.js) | shadcn/ui, Radix | CSS Variables |
| Web (Vue) | Vuetify, PrimeVue | CSS Variables |
| Flutter | Material 3, Custom Theme | ThemeData |
| iOS (SwiftUI) | Native Components | Asset Catalog, Color Set |
| Android (Compose) | Material 3 | MaterialTheme |
| React Native | NativeBase, Tamagui | StyleSheet + Theme |
What to Do in This Phase
- Install Base Components: Button, Input, Card, etc.
- Customize: Adjust to project style
- Composite Components: Combine multiple base components
- Documentation: Document component usage
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.
- 2mo ago First seen · 513 lines · 44 tokens per session scan A ee30ccd1c0d6
phase-5-design-system is a skill published in the GitHub repository ww-w-ai/bkit-claude-code (605 stars, last pushed 7d ago), licensed Apache-2.0. It adds 44 tokens to every session and 3,384 once invoked, about $0.0002 per session on Opus 5.5. 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 2026-09-03.
phase-5-design-system compared with skills from other repositories
| Mod | Type | Stars | Last push | Licence | Scan | Tokens | Works with |
|---|---|---|---|---|---|---|---|
| phase-5-design-systemww-w-ai/bkit-claude-code | Skill | 605 | 7d ago | Apache-2.0 | A | 44 | Claude Code |
| chakra-ui-builderchakra-ui/chakra-ui | Skill | 41k | yesterday | MIT | A | 214 | Claude Code, Codex |
| visual-ralphYeachan-Heo/oh-my-codex | Skill | 34k | 3d ago | MIT | A | 52 | Codex |
| open-design-setupcompozy/compozy | Skill | 2.8k | yesterday | MIT | A | 67 | Claude Code, Codex |
| frontend-visual-qadaymade/claude-code-skills | Skill | 1.5k | yesterday | MIT | A | 125 | Claude Code, Codex |
| prototype-webnexu-io/html-anything | Skill | 9.4k | 25d ago | Apache-2.0 | A | 24 | Claude Code, Codex |
| refactoring-uiwondelai/skills | Skill | 2.6k | 4d ago | MIT | A | 132 | Claude Code, Codex |