svelte-runes

svelte-runes is a skill for Claude Code from spences10/svelte-skills-kit. It costs 46 tokens per session (636 once invoked), scanned A, original, no licence file.

Guidance for Svelte 5 runes, which are the syntax Svelte uses for reactive state and component inputs. It covers state, derived values, effects, props, and two-way bindable props, as well as migration advice.

In plain words
What is it for?
Use it when managing reactive state, defining props, creating derived values or effects, enabling two-way binding, or migrating Svelte code.
Why use it?
It helps prevent mistakes where values fail to update or effects run at the wrong time.

Skill for Claude Code

Written for Claude Code: shipped in a Claude Code plugin.

Part of the svelte-skills plugin — 10 skills shipped together

Good fit Use it when managing reactive state, defining props, creating derived values or effects, enabling two-way binding, or migrating Svelte code.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/spences10/svelte-skills-kit/svelte-runes
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.

Any agent
npx skills add spences10/svelte-skills-kit --skill svelte-runes
Clone the repo
git clone --depth 1 https://github.com/spences10/svelte-skills-kit

Made for: Claude Code.

Or install svelte-skills, the plugin that ships this one along with the rest of its 10 skills.

Wrote 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.

agentmods badge for svelte-runes

README.md
[![agentmods](https://agentmods.dev/badge/skills/spences10/svelte-skills-kit/svelte-runes/github.svg)](https://agentmods.dev/skills/spences10/svelte-skills-kit/svelte-runes)
Your own site
<a href="https://agentmods.dev/skills/spences10/svelte-skills-kit/svelte-runes"><img src="https://agentmods.dev/badge/skills/spences10/svelte-skills-kit/svelte-runes/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.

agentmods 80×15 button for svelte-runes

Your own site · 80×15
<a href="https://agentmods.dev/skills/spences10/svelte-skills-kit/svelte-runes"><img src="https://agentmods.dev/badge/skills/spences10/svelte-skills-kit/svelte-runes.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 46 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 636 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe. Third-party audits
  • Socket pass 15 Sept 2026
  • Snyk pass 15 Sept 2026
How audits are shown
Origin unknown 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 5.1 $0.00046 $0.00636
Opus 5.5 $0.00018 $0.00254
Sonnet 5.5 $0.00009 $0.00127
Haiku 4.5 $0.00005 $0.00064

Measured 1mo ago against content hash d001181ce5bc, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

svelte-runes 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.

plugins/svelte-skills/skills/svelte-runes/SKILL.md · 75 lines

The source is not reproduced here

No licence file

A repository with no LICENSE is all rights reserved by default, so the body is not copied here. The metadata, the measurements and the link are.

Read it on GitHub

Files

What ships with it

8 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.

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. 1mo ago First seen · 75 lines · 46 tokens per session scan A d001181ce5bc

Subscribe to this mod's changes

svelte-runes is a skill published in the GitHub repository spences10/svelte-skills-kit (94 stars, last pushed 16d ago), with no licence file. It adds 46 tokens to every session and 636 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.

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