Borrowing it
Nothing to install: this file belongs to Eduardo-Salvador/Agent-Harness-Kit. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/Eduardo-Salvador/Agent-Harness-Kit/main/.agents/skills/frontend-screen/SKILL.mdgit clone --depth 1 https://github.com/Eduardo-Salvador/Agent-Harness-KitWrote 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/eduardo-salvador/agent-harness-kit/frontend-screen)<a href="https://agentmods.dev/skills/eduardo-salvador/agent-harness-kit/frontend-screen"><img src="https://agentmods.dev/badge/skills/eduardo-salvador/agent-harness-kit/frontend-screen/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/eduardo-salvador/agent-harness-kit/frontend-screen"><img src="https://agentmods.dev/badge/skills/eduardo-salvador/agent-harness-kit/frontend-screen.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 | $0.00032 | $0.00270 |
| Opus 5 | $0.00016 | $0.00135 |
| Sonnet 5 | $0.00006 | $0.00054 |
| Haiku 4.5 | $0.00003 | $0.00027 |
Grade A, and why
frontend-screen 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 12d 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.
What it actually says
Frontend screen
Use this skill automatically for a requested screen, page, landing page, portfolio, responsive section, material visual redesign, or implementation from approved screenshots. Do not invoke it for a tiny style correction or logic-only change.
Follow the shared frontend screen playbook. Load only the approved project context, assigned task, relevant rules, capability manifest, existing frontend evidence, and linked execution budget.
Treat design-taste-frontend, imagegen-frontend-web, imagegen, and image-to-code as named capabilities, not assumed installation. Record availability and degradation explicitly. With approved desktop/mobile screenshots, make image-to-code the primary coding skill for screenshot interpretation, proportions, components, and responsive implementation; keep frontend-screen responsible for desktop/mobile coverage and fidelity checks; use imagegen only for temporary photographs or raster assets, never code. Preserve the task write lease, existing stack, user scope, one consolidated visual approval when needed, and the normal completion/review rules. Store project-bound visual assets inside the project and record final paths in the handoff.
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.
- 12d ago First seen · 13 lines · 32 tokens per session scan A 8c584e3d0bcc
frontend-screen is a skill published in the GitHub repository Eduardo-Salvador/Agent-Harness-Kit (6 stars, last pushed 3d ago), licensed MIT. It adds 32 tokens to every session and 270 once invoked, about $0.0002 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
frontend-design
Create distinctive, production-grade frontend interfaces with high design quality. Use this skill when the user asks to build web components, pages, artifacts, posters, or applications (examples include websites, landing pages, dashboards, React components, HTML/CSS layouts, or when styling/beautifying any web UI).…
frontend-design
Produce intentional, responsive, accessible UI work and perform visual QA instead of generic component assembly.
creative-emil-design-engineering
This skill encodes Emil Kowalski's philosophy on UI polish, component design, animation decisions, and the invisible details that make software feel great.
creative-apple-design
Apple's approach to interface design and fluid, physical motion, translated for the web. Use when building or reviewing gesture-driven UI, spring animations, drag/swipe/sheet interactions, momentum and interruptible transitions, translucent materials and depth, typography (optical sizing, tracking, leading)…
creative-popular-web-designs
54 real design systems (Stripe, Linear, Vercel) as HTML/CSS.
present
Turn what's being communicated into a crafted single-page HTML explainer with diagrams. Triggered by 'present this', 'make this visual', 'show me this as a page'.