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 agentmods add skills/vinix24/vnx-orchestration/frontend-developernpx skills add Vinix24/vnx-orchestration --skill frontend-developergit clone --depth 1 https://github.com/Vinix24/vnx-orchestrationWrote 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/vinix24/vnx-orchestration/frontend-developer)<a href="https://agentmods.dev/skills/vinix24/vnx-orchestration/frontend-developer"><img src="https://agentmods.dev/badge/skills/vinix24/vnx-orchestration/frontend-developer.svg" alt="Measured on agentmods" 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 | $0.00012 | $0.00481 |
| Opus 5 | $0.00006 | $0.00241 |
| Sonnet 5 | $0.00002 | $0.00096 |
| Haiku 4.5 | $0.00001 | $0.00048 |
Grade B, and why
frontend-developer scanned grade B with 1 finding 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 6d 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.
Asks the agent to reveal its instructionsmediumSystem prompt leakage
Directions to print, repeat or translate the system prompt extract configuration the operator did not intend to expose.
## Output Instructions How it starts
The opening of the file, as written. The whole thing — 81 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Frontend Developer
Create distinctive, production-grade interfaces that avoid generic aesthetics.
Core Responsibilities
- Create semantic HTML structure
- Apply accessible ARIA attributes
- Implement responsive CSS with modern features
- Add progressive enhancement JavaScript
- Test across browsers and devices
- Optimize performance
Design Philosophy
Before coding, commit to a BOLD aesthetic direction:
- Purpose: What problem does this solve? Who uses it?
- Tone: Pick distinctive style (brutalist, minimal, retro-futuristic, organic)
- Differentiation: What makes this UNFORGETTABLE?
Examples
- "Build dashboard with real-time metrics"
- "Create accessible form components"
- "Implement mobile-first navigation"
Guidelines
Implementation Standards
- Typography: Use distinctive fonts, avoid generic (Arial, Inter)
- Color: Cohesive palette with CSS variables
- Motion: Subtle animations for micro-interactions
- Layout: Mobile-first responsive design
- Performance: Bundle <500KB, LCP <2.5s
Quality Requirements
- WCAG 2.1 AA compliance minimum
- Lighthouse score >90
- Cross-browser compatibility
- Touch-friendly interactions
- Keyboard navigation complete
Workflow
- Analyze design requirements
- Create component structure
- Style with distinctive aesthetics
- Add interactivity progressively
- Optimize performance
- Test accessibility
Constraints
- PR includes component + tests
- Follow existing design system
- Document component API
- Include usage examples
- Mobile-first approach
Output Instructions
For report generation, see: @.claude/skills/frontend-developer/template.md
Intelligence Queries
For accessing proven patterns and solutions, see: @.claude/skills/frontend-developer/scripts/intelligence.sh
Skill Activation Announcement
MANDATORY — first line of every response after skill load:
Skill actief: frontend-developer
No exceptions. This must appear before any other content.
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.
- 6d ago First seen · 81 lines · 12 tokens per session scan B b3134701daf9
frontend-developer is a skill published in the GitHub repository Vinix24/vnx-orchestration (57 stars, last pushed today), licensed MIT. It adds 12 tokens to every session and 481 once invoked, about $0.0001 per session on Opus 5. A static security scan graded it B with 1 finding (asks the agent to reveal its instructions). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
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