Agent skill

Sveltekit Modern

by WrongStack in WrongStack/WrongStack

Build and upgrade Svelte and SvelteKit applications with reactive state, server loads, actions and deployment adapters.

MITAuto-check passedDevOps & Cloud

Install Sveltekit Modern

skills CLI
$ npx skills add WrongStack/WrongStack --skill sveltekit-modern -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI
$ gh skill install WrongStack/WrongStack sveltekit-modern --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy
$ git clone --depth 1 https://github.com/WrongStack/WrongStack.git skills-src && mkdir -p .claude/skills && cp -r skills-src/packages/core/skills/sveltekit-modern .claude/skills/sveltekit-modern && rm -rf skills-src

Use ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.

Claude Code skills documentation · loads skills from .claude/skills/

Facts

Skill name
sveltekit-modern
GitHub stars
371
Token cost
~766 tokens
SKILL.md length
276 words
Files
1
Skills in repo
100
Repo updated
First seen
Licence
MIT

At a glance

Build and upgrade Svelte and SvelteKit applications with reactive state, server loads, actions and deployment adapters.

  • Works in 6 steps: Distinguish component reactivity from… → Use current supported reactivity… → Keep per-request private data out of… → …
  • Implementing Svelte components
  • SKILL.md covers Selection card, Overview, Rules and Workflow, plus 3 more sections
  • Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md

What it does

Sveltekit Modern is an agent skill from WrongStack/WrongStack. Build and upgrade Svelte and SvelteKit applications with reactive state, server loads, actions and deployment adapters. Use when implementing Svelte components or SvelteKit routes; follow the current installed runtime and migration contract.

Its SKILL.md is about 770 tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.

It sits in DevOps & Cloud. It works with SvelteKit and Svelte. The repository describes itself as: An AI coding agent that reads your code, edits files, runs commands, and reasons through bugs — across a terminal REPL, a full-screen TUI, and a browser UI, while you keep your… The licence is MIT.

When your agent uses it

  • Implementing Svelte components
  • SvelteKit routes
  • Follow the current installed runtime and migration contract

Example prompts

  • “/sveltekit-modern”

Workflow steps

6 steps, taken from the first numbered list in SKILL.md.

  1. Distinguish component reactivity from server load/action execution; browser APIs cannot run in server paths.
  2. Use current supported reactivity conventions for new code; migrate existing code deliberately instead of mixing incompatible examples.
  3. Keep per-request private data out of module-global server state.
  4. Serialize only appropriate load data and separate public/private environment variables.
  5. Validate/authorize form actions and endpoints at the server boundary and model failure feedback.
  6. Scope stores/effects/subscriptions to ownership and guard stale async completion.

What it can do on your machine

Read from SKILL.md and the folder at commit a744bdc. It shows what the files ask for, not the result of running them.

  • Tool permissions

    Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.

    From allowed-tools in the SKILL.md frontmatter.

  • Runs code

    No scripts in the folder and no shell commands in SKILL.md.

    From the folder's file list and the shell code blocks in SKILL.md.

  • Network

    Links to these hosts (documentation or services it may open):

    • svelte.dev

    From URLs in SKILL.md, links to its own repository left out.

  • Credentials

    Names no API keys, tokens, secrets or passwords.

    From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

Sveltekit Modern loads about 766 tokens when it runs. Until then it costs about 65 tokens; SKILL.md has 276 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~65
When it runs · the whole SKILL.md, loaded when a task matches
~766

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Auto-check passed

The automated check found no risky patterns in SKILL.md.

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.

SKILL.md

The full file from WrongStack/WrongStack at commit a744bdc, republished under its MIT licence (© WrongStack). 276 words, ~766 tokens.

Download SKILL.mdSave it as .claude/skills/sveltekit-modern/SKILL.md (or your agent's skills folder).
name
sveltekit-modern
description
Build and upgrade Svelte and SvelteKit applications with reactive state, server loads, actions and deployment adapters. Use when implementing Svelte components or SvelteKit routes; follow the current installed runtime and migration contract.
trigger
Build and upgrade Svelte and SvelteKit applications with reactive state, server loads, actions and deployment adapters. Use when implementing Svelte…
version
1.0.1
required-capabilities
filesystem.read
optional-capabilities
filesystem.write, execution.shell, verification.run, web.research
metadata.routing-group
frontend
metadata.domain
web

Sveltekit Modern

Selection card

  • Task: Svelte runes and SvelteKit actions. / TR: Svelte runes ve SvelteKit action.
  • Start: Locate the affected route/component and its runtime/lockfile.
  • Finish: apply the acceptance checks below; report observed results and unresolved constraints.

Overview

Build and upgrade Svelte and SvelteKit applications with reactive state, server loads, actions and deployment adapters.

Checked 2026-10-09: Svelte 5.57.2 and SvelteKit 3.0.1. Verify supported adapter/runtime and stable peer requirements before upgrading.

Rules

  1. Distinguish component reactivity from server load/action execution; browser APIs cannot run in server paths.
  2. Use current supported reactivity conventions for new code; migrate existing code deliberately instead of mixing incompatible examples.
  3. Keep per-request private data out of module-global server state.
  4. Serialize only appropriate load data and separate public/private environment variables.
  5. Validate/authorize form actions and endpoints at the server boundary and model failure feedback.
  6. Scope stores/effects/subscriptions to ownership and guard stale async completion.

Workflow

  1. Inspect routes, hooks, state conventions, adapter and lockfile.
  2. Read migration deltas for crossed majors and establish the latest compatible target.
  3. Implement loading/actions and visible states with existing components.
  4. Test direct loads, navigation, hydration, errors and two-user isolation where private data exists.
  5. Run configured checks and adapter production build/startup.

Before returning

Load/action boundaries and private data ownership explicit; reactive cleanup and route behavior verified; adapter evidence scoped.

Sources

Versioned facts checked 2026-10-09; refresh authoritative sources before new installs/upgrades. Svelte docs, SvelteKit docs.

Skills in scope

  • api-design — api design contracts and verification.
  • typescript-strict — typescript strict contracts and verification.
  • design-system — create and maintain coherent visual tokens, themes and shared component states using the existing project system or WrongStack Design Studio.
  • testing — testing contracts and verification.

© WrongStack, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file

Files

Just SKILL.md in packages/core/skills/sveltekit-modern of WrongStack/WrongStack.

Open the folder on GitHubat commit a744bdc

Compare with similar skills

Sveltekit Modern next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.

Sveltekit Modern compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Sveltekit Modern this skillWrongStack/WrongStack371—~766Automated safety check: PassMIT
Sentry Svelte SDKgetsentry/sentry-for-ai268—~4.1kAutomated safety check: NotesApache-2.0
Weft FrontendWeaveMindAI/weft2k—~8kAutomated safety check: NotesCustom licence
Svelte5 Best PracticesSikandarJODD/cnblocks4311 repos~810Automated safety check: PassMIT
Sveltekit Structurespences10/svelte-claude-skills2181 repos~600Automated safety check: PassNone
Worklog Designregisx001/Worklog261—~3.3kAutomated safety check: PassMIT

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Works with

Categories

Questions about Sveltekit Modern

What does Sveltekit Modern do?

Build and upgrade Svelte and SvelteKit applications with reactive state, server loads, actions and deployment adapters. Sveltekit Modern is an agent skill from WrongStack/WrongStack. Build and upgrade Svelte and SvelteKit applications with reactive state, server loads, actions and deployment adapters.

When should I use Sveltekit Modern?

Sveltekit Modern fits situations like: implementing Svelte components; svelteKit routes; follow the current installed runtime and migration contract.

How do I install Sveltekit Modern in Claude Code?

Run `npx skills add WrongStack/WrongStack --skill sveltekit-modern -a claude-code`. Or copy the skill folder (packages/core/skills/sveltekit-modern in WrongStack/WrongStack) into .claude/skills/sveltekit-modern in your project. Claude Code loads it when a task matches its description.

How do I install Sveltekit Modern in Codex?

Run `npx skills add WrongStack/WrongStack --skill sveltekit-modern -a codex`. Or copy the skill folder (packages/core/skills/sveltekit-modern in WrongStack/WrongStack) into .agents/skills/sveltekit-modern in your project. Codex loads it when a task matches its description.

Can I use Sveltekit Modern in Cursor, Gemini CLI or GitHub Copilot?

Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add WrongStack/WrongStack --skill sveltekit-modern -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/sveltekit-modern, .gemini/skills/sveltekit-modern, .github/skills/sveltekit-modern and .opencode/skills/sveltekit-modern in your project.

What does Sveltekit Modern need to run?

SKILL.md names no scripts, command-line tools or credentials: Sveltekit Modern is instructions for the agent only.

Does Sveltekit Modern access the network?

SKILL.md names 1 domain. As links in the text: svelte.dev. This is read from the text; nothing was executed.

Is Sveltekit Modern safe to install?

Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.

What licence does Sveltekit Modern use?

Sveltekit Modern is published under the MIT licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does Sveltekit Modern use?

About 766 tokens (SKILL.md is roughly 3.1k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.

What are the alternatives to Sveltekit Modern?

Skills that share tags, products or a category with Sveltekit Modern: Sentry Svelte SDK (getsentry/sentry-for-ai, 268 stars), Weft Frontend (WeaveMindAI/weft, 2k stars), Svelte5 Best Practices (SikandarJODD/cnblocks, 431 stars) and Sveltekit Structure (spences10/svelte-claude-skills, 218 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Sveltekit Modern?

WrongStack (a GitHub organization) maintains it in WrongStack/WrongStack, which has 371 GitHub stars. The repository holds 100 skills in this directory. The repository was last updated on October 10, 2026.

Source: WrongStack/WrongStack on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.