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/kevintsai1202/teaching-site-skillsnpx agentmods add skills/kevintsai1202/teaching-site-skills/static-spa-conversionWrote 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/kevintsai1202/teaching-site-skills/static-spa-conversion)<a href="https://agentmods.dev/skills/kevintsai1202/teaching-site-skills/static-spa-conversion"><img src="https://agentmods.dev/badge/skills/kevintsai1202/teaching-site-skills/static-spa-conversion/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/kevintsai1202/teaching-site-skills/static-spa-conversion"><img src="https://agentmods.dev/badge/skills/kevintsai1202/teaching-site-skills/static-spa-conversion.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 | $0.00163 | $0.02543 |
| Opus 5 | $0.00081 | $0.01272 |
| Sonnet 5 | $0.00033 | $0.00509 |
| Haiku 4.5 | $0.00016 | $0.00254 |
Grade A, and why
static-spa-conversion 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 10d 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 — 228 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Static SPA Conversion
Schema authority: all
window.COURSEfield names come from_shared/domain-primitives.md. When the schema example below diverges from that file, that file wins.Starter templates (copy these, don't re-derive):
templates/index.html— scaffold shell with render pipeline skeletontemplates/course-data.template.js— empty schema example with TODO markers for every primitive../teaching-site-design-system/templates/tokens.css— paste into<style>block, or copy asstyle.cssnext toindex.htmlReference implementation:
d:/GitHub/ai-workshop/index.html(4125 lines, fully populated). Use as visual + render-pattern reference; do not copy course-specific content from it.Filename convention (English-first):
course-package/,day{n}/outline.md,day{n}/content.md,materials/,overview.md. Legacy Chinese names (完整課程包/,課程大綱.md,教學素材/, etc.) are deprecated — see_shared/domain-primitives.md§0 for full mapping.
This skill turns chapter-based markdown content into a working single-page app. The architectural commitments are deliberate and worth understanding before you start.
The Three Architectural Commitments
-
Vanilla HTML + JS, no framework, no bundler. No React, no Vite, no TypeScript build. Why: course websites have multi-year lifespans and are often handed to non-developer instructors. A
.htmlyou can open and edit beats anode_modulesgraveyard every time. Also: the content is the value, not the tech. -
Data and rendering live in different files. A
course-data.jsholds everything the course is as a single JS object (window.COURSE). Anindex.htmlholds how the course is shown. Instructors editing tomorrow's lesson never need to touch HTML. -
localStorage for persistence, no backend. Progress, theme, zoom — all client-side. Easier hosting, no privacy headaches. The cost: state is per-browser. Accept it.
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.
- 10d ago First seen · 228 lines · 163 tokens per session scan A c75477a411fe
static-spa-conversion is a skill published in the GitHub repository kevintsai1202/teaching-site-skills (49 stars, last pushed 3mo ago), licensed MIT. It adds 163 tokens to every session and 2,543 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 2026-08-30.
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