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 hoangatg/ai-agent-toolkit --skill svelte-expertgit clone --depth 1 https://github.com/hoangatg/ai-agent-toolkitWrote 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/hoangatg/ai-agent-toolkit/svelte-expert)<a href="https://agentmods.dev/skills/hoangatg/ai-agent-toolkit/svelte-expert"><img src="https://agentmods.dev/badge/skills/hoangatg/ai-agent-toolkit/svelte-expert/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/hoangatg/ai-agent-toolkit/svelte-expert"><img src="https://agentmods.dev/badge/skills/hoangatg/ai-agent-toolkit/svelte-expert.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 | $0.00043 | $0.00347 |
| Opus 5.5 | $0.00017 | $0.00139 |
| Sonnet 5.5 | $0.00009 | $0.00069 |
| Haiku 4.5 | $0.00004 | $0.00035 |
Grade A, and why
svelte-expert 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 1mo 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
Svelte Expert
Svelte 5 with runes, SvelteKit 2 for full-stack development. Less boilerplate, more performance.
Svelte 5 Runes
| Rune | Purpose | Example |
|---|---|---|
$state |
Reactive state | let count = $state(0) |
$derived |
Computed values | let doubled = $derived(count * 2) |
$effect |
Side effects | $effect(() => console.log(count)) |
$props |
Component props | let { name } = $props() |
$bindable |
Two-way binding | let { value = $bindable() } = $props() |
SvelteKit Patterns
- File-based routing:
src/routes/[slug]/+page.svelte - Server load functions:
+page.server.tsfor data loading - Actions: Form handling with
+page.server.tsactions - Hooks:
src/hooks.server.tsfor middleware - API Routes:
+server.tsfor REST endpoints
Anti-Patterns
| ❌ Don't | ✅ Do |
|---|---|
| Use stores in Svelte 5 | Use $state runes |
| Client-side data fetching | Server load functions |
| Skip form validation | Use SvelteKit actions + superforms |
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.
- 1mo ago First seen · 39 lines · 43 tokens per session scan A 54ad2cc6cebc
svelte-expert is a skill published in the GitHub repository hoangatg/ai-agent-toolkit (1 stars, last pushed 7mo ago), licensed MIT. It adds 43 tokens to every session and 347 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 2026-09-03.
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