verify

A verification workflow for a Spark UI documentation website, including its production build, pages, search, theme switcher, mobile navigation, registry endpoints, and component installation. Spark UI is a website and component collection for building React interfaces.

In plain words
What is it for?
Use it to build and serve the site, test key documentation pages and controls, check registry responses, and install a component into a temporary project.
Why use it?
It catches broken pages, interactions, generated registry files, and installation paths before changes are considered complete.

Skill for Claude CodeCodex

Install

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.

agentmods
npx agentmods add skills/codeweb-dev/spark-ui/verify
Any agent
npx skills add codeweb-dev/spark-ui --skill verify
Clone the repo
git clone --depth 1 https://github.com/codeweb-dev/spark-ui

Made for: Claude Code, Codex.

Per session 20 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 372 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 1 finding. Scan, not verified.
Origin original No closer match found in the catalogue.
Token cost

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.

ModelPer sessionOnce invoked
Fable 5 $0.00020 $0.00372
Opus 5 $0.00010 $0.00186
Sonnet 5 $0.00004 $0.00074
Haiku 4.5 $0.00002 $0.00037

Measured 2d ago against content hash 4629acd4e947, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

verify scanned grade A 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 2d 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.

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

- Registry endpoints: `curl localhost:3100/r/accordion.json` → 200; excluded slugs (e.g. `/r/slider.json`) → 404
.claude/skills/verify/SKILL.md · 33 lines

What it actually says

Verifying Spark UI

Build & launch

npm run check          # lint + registry:build + production build (all must pass)
PORT=3100 npm run start   # serve the production build

Dev alternative: npm run dev (port 3000).

Flows worth driving

  • / — hero, showcase cards (retained components render), principles, install section, footer
  • /docs/introduction and /docs/components/accordion — sidebar, breadcrumbs, live <ComponentPreview>, npm-first <InstallBlock>
  • Search: click the navbar search button (⌘K listener lives in the client SearchDialog; button click is more reliable under automation)
  • Theme toggle button in navbar (.dark class on <html>)
  • Mobile nav: viewport ≤ 768px, [aria-label="Open navigation"]
  • Registry endpoints: curl localhost:3100/r/accordion.json → 200; excluded slugs (e.g. /r/slider.json) → 404
  • CLI install from a scratch project with a minimal components.json: npx shadcn@latest add http://localhost:3100/r/accordion.json --yes

Gotchas

  • npm run registry:build regenerates public/r/; run it after touching registry.json or component sources.
  • ESLint has 5 accepted warnings (logo-carousel <img>, number-ticker deps, ghost-ether unused _args); errors must stay at 0.
  • The public URL comes from SITE_CONFIG.url in lib/constants.ts (NEXT_PUBLIC_APP_URL override).
Changes

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.

  1. 2d ago First seen · 33 lines · 20 tokens per session scan A 4629acd4e947

Subscribe to this mod's changes

verify is a skill published in the GitHub repository codeweb-dev/spark-ui (48 stars, last pushed 1mo ago), licensed MIT. It adds 20 tokens to every session and 372 once invoked, about $0.0001 per session on Opus 5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

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