Borrowing it
Nothing to install: this file belongs to TheDecipherist/claude-code-mastery-project-starter-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/TheDecipherist/claude-code-mastery-project-starter-kit/main/.claude/skills/web-architecture/SKILL.mdgit clone --depth 1 https://github.com/TheDecipherist/claude-code-mastery-project-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/thedecipherist/claude-code-mastery-project-starter-kit/web-architecture)<a href="https://agentmods.dev/skills/thedecipherist/claude-code-mastery-project-starter-kit/web-architecture"><img src="https://agentmods.dev/badge/skills/thedecipherist/claude-code-mastery-project-starter-kit/web-architecture/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/thedecipherist/claude-code-mastery-project-starter-kit/web-architecture"><img src="https://agentmods.dev/badge/skills/thedecipherist/claude-code-mastery-project-starter-kit/web-architecture.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector pass
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 | $0.00116 | $0.00935 |
| Opus 5.5 | $0.00046 | $0.00374 |
| Sonnet 5.5 | $0.00023 | $0.00187 |
| Haiku 4.5 | $0.00012 | $0.00093 |
Grade A, and why
web-architecture 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 — 39 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Web Architecture: Pick the Rendering Strategy Up Front
Two defaults Claude reaches for that are usually wrong: rendering everything in the browser, and hand-building a multi-page app from vanilla HTML/JS. Both should be a deliberate up-front choice, and for most real sites the better answer is server-rendered HTML and a framework. Raise these even when the user didn't ask, the same way you'd raise a WAF before production.
Default to server-rendered HTML, not client-rendered
For anything where content, SEO, or first paint matters, the content must be in the initial HTML response, not painted afterward by client JavaScript. Client-side rendering (a blank shell that fetches and renders in the browser) means a blank screen until the bundle loads and runs, a slow LCP, and content that many crawlers and LLM retrievers never see because they don't reliably execute JavaScript. Server-render it instead:
- SSG (static generation): render at build time, serve static from a CDN. Fastest, cheapest, most cacheable. The default for content that doesn't change per request, marketing, docs, blog, listing and category pages that can be rebuilt.
- SSR (server-side rendering): render per request on the server. For dynamic, personalized, or auth-gated content that can't be baked at build time.
- CSR / islands: render in the browser only for the genuinely interactive parts, or for app-like surfaces behind a login where SEO is irrelevant (a dashboard). With an islands approach (Astro) the page ships as static HTML and only the interactive components hydrate.
Pick per page, you can mix: a static marketing page (SSG), a personalized account page (SSR), and an interactive widget (an island) in the same site.
Several pages means reach for a framework
If the project has multiple pages, a shared layout, routing, or real data fetching, hand-rolling it in vanilla JS is a maintenance and performance trap, and it's Claude's default unless told otherwise. Reach for a framework (Next.js, Astro, SvelteKit, Nuxt, Remix). They give routing, SSR and SSG, code-splitting, data loading, and image optimization out of the box, and crucially they give you SPA-style client navigation on top of server-rendered initial HTML, so you get the smooth multi-page app feel without shipping a blank client-only SPA that breaks first paint and SEO.
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 · 39 lines · 116 tokens per session scan A 815ce900e425
web-architecture is a skill published in the GitHub repository TheDecipherist/claude-code-mastery-project-starter-kit (342 stars, last pushed 4mo ago), licensed MIT. It adds 116 tokens to every session and 935 once invoked, about $0.0005 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.
web-architecture compared with skills from other repositories
| Mod | Type | Stars | Last push | Licence | Scan | Tokens | Works with |
|---|---|---|---|---|---|---|---|
| web-architectureTheDecipherist/claude-code-mastery-project-starter-kit | Skill | 342 | 4mo ago | MIT | A | 116 | Claude Code |
| imagegenopenai/codex | Skill | 133k | yesterday | Apache-2.0 | A | 113 | Codex |
| playwright-climicrosoft/playwright | Skill | 99k | yesterday | Apache-2.0 | A | 19 | Claude Code |
| local-ai-agentsmicrosoft/ai-agents-for-beginners | Skill | 79k | 4d ago | MIT | A | 200 | Claude Code, Codex |
| systematic-debuggingobra/superpowers | Skill | 313k | 3d ago | MIT | A | 21 | Claude Code |
| next-cache-components-adoptionvercel/next.js | Skill | 143k | today | MIT | A | 95 | Claude Code |
| next-partial-prefetching-adoptionvercel/next.js | Skill | 143k | today | MIT | A | 103 | Claude Code |