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 HarnessRouter/starter-kit --skill slide-designgit clone --depth 1 https://github.com/HarnessRouter/starter-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/harnessrouter/starter-kit/slide-design)<a href="https://agentmods.dev/skills/harnessrouter/starter-kit/slide-design"><img src="https://agentmods.dev/badge/skills/harnessrouter/starter-kit/slide-design/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/harnessrouter/starter-kit/slide-design"><img src="https://agentmods.dev/badge/skills/harnessrouter/starter-kit/slide-design.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 | $0.00039 | $0.03192 |
| Opus 5.5 | $0.00016 | $0.01277 |
| Sonnet 5.5 | $0.00008 | $0.00638 |
| Haiku 4.5 | $0.00004 | $0.00319 |
Grade A, and why
slide-design 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 3d 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.
The source is not reproduced here
A licence we could not identify
The repository carries a LICENSE file, but it is custom or dual enough that GitHub cannot name it and neither can this catalogue. Unknown terms are not permission, so the body is not copied here. Read the licence at the source and decide for yourself.
What ships with it
2 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
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.
- 3d ago Changed · +23 lines 0684ad60dcf1
- 1mo ago Changed · +17 lines 0a0fbb43d952
- 1mo ago First seen · 182 lines · 39 tokens per session scan A 02a729e16347
slide-design is a skill published in the GitHub repository HarnessRouter/starter-kit (79 stars, last pushed yesterday), with no licence file. It adds 39 tokens to every session and 3,192 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 2026-08-30.
Other skills, from other repositories
v0
Generate and iterate on UIs/apps with Vercel v0 via the v0 Platform API. Use when building a frontend with v0, calling the v0 API/SDK, or spending v0 credits.
ui-handler
Implement UI using Shadcn/UI and Tailwind CSS.
motion-framer
Modern animation library for React and JavaScript. Create smooth, production-ready animations with motion components, variants, gestures (hover/tap/drag), layout animations, AnimatePresence exit animations, spring physics, and scroll-based effects. Use when building interactive UI components, micro-interactions, page…
web3d-integration-patterns
Meta-skill for combining Three.js, GSAP ScrollTrigger, React Three Fiber, Motion, and React Spring for complex 3D web experiences. Use when building applications that integrate multiple 3D and animation libraries, requiring architecture patterns, state management, and performance optimization across the stack.…
popular-web-designs
54 real design systems (Stripe, Linear, Vercel) as HTML/CSS.
canvas-design
Cria arte visual estática em .png ou .pdf usando filosofia de design. Use para poster, print, composição visual ou peça artística. Não use para arquivos .canvas do Obsidian nem para organização de grafo do vault. Gere design original e não copie trabalho de artistas existentes.