FRAMEWORK DEVELOPMENT / Svelte
Svelte Core Best Practices
Svelte-maintained guidance for reactivity, component composition and integration with browser APIs.
“Guidance on writing fast, robust, modern Svelte code. Load this skill whenever in a Svelte project and asked to write/edit or analyze”
01 / THE REASONING
Why this made the selection.
- Explains when to derive state instead of synchronizing it with effects, and when reactive wrappers or subscriptions are needed.
- Includes focused references for attachments, bindings, keyed lists, snippets and hydration rather than reducing modern Svelte to a component style checklist.
02 / THE REVIEW RECORD
What we actually inspected.
Source review has boundaries.
A clear record is more useful than a “safe” badge.
Material inspected
- tools/skills/svelte-core-bestpractices/SKILL.md
- README.md (installation and supported-host sections)
- LICENSE
- tools/skills/svelte-core-bestpractices/references/attach.md
- tools/skills/svelte-core-bestpractices/references/await-expressions.md
- tools/skills/svelte-core-bestpractices/references/bind.md
- tools/skills/svelte-core-bestpractices/references/each.md
- tools/skills/svelte-core-bestpractices/references/hydratable.md
- tools/skills/svelte-core-bestpractices/references/inspect.md
- tools/skills/svelte-core-bestpractices/references/render.md
- tools/skills/svelte-core-bestpractices/references/snippet.md
- tools/skills/svelte-core-bestpractices/references/svelte-reactivity.md
Our findings
- The full definition and all supplied references were inspected, including cleanup, lexical snippet scope and development-only inspection behavior.
- Guidance is qualitative; this review did not benchmark the suggested patterns or compile every example.
Not established by this review
- No upstream definition, helper, installer or generated workload was executed.
- No end-to-end agent session or effectiveness benchmark was run.
The review applies to the material and revision named here. A newer upstream release can change its behavior.
03 / PUT IT TO WORK
Add a skill to your workflow.
DOCUMENTED COMMAND
npx skills add https://github.com/sveltejs/ai-tools/tree/5c15fbcb5b630ac8ce0281ee1782fc2056fab853/tools/skills/svelte-core-bestpractices --skill svelte-core-bestpracticesCopying does not execute this command. It may retrieve a newer version than the reviewed source.
- Install the complete skill directory, including its references and helpers; select your intended host and project scope.
- Review the instructions before invoking them. The source revision is pinned; the installer was not executed or version-pinned by this review.
Before you start
- Node.js/npm and git for the documented Skills installer
- An agent host that supports the skill format and the tools required by the workflow
04 / FOLLOW THE EVIDENCE
The source trail.
Our notes are separate from the original resource.
Check upstream before adopting a new version.
https://github.com/sveltejs/ai-tools/blob/5c15fbcb5b630ac8ce0281ee1782fc2056fab853/tools/skills/svelte-core-bestpractices/SKILL.md
Supports: summary, upstreamDescription, whySelected, bestFor, limitations, review, access
https://github.com/sveltejs/ai-tools/blob/5c15fbcb5b630ac8ce0281ee1782fc2056fab853/README.md
Supports: install, compatibility
https://github.com/sveltejs/ai-tools/blob/5c15fbcb5b630ac8ce0281ee1782fc2056fab853/LICENSE
Supports: license, access.cost
https://github.com/sveltejs/ai-tools/blob/5c15fbcb5b630ac8ce0281ee1782fc2056fab853/tools/skills/svelte-core-bestpractices/references/attach.md
Supports: review, limitations, install, access
https://github.com/sveltejs/ai-tools/blob/5c15fbcb5b630ac8ce0281ee1782fc2056fab853/tools/skills/svelte-core-bestpractices/references/await-expressions.md
Supports: review, limitations, install, access
https://github.com/sveltejs/ai-tools/blob/5c15fbcb5b630ac8ce0281ee1782fc2056fab853/tools/skills/svelte-core-bestpractices/references/bind.md
Supports: review, limitations, install, access
https://github.com/sveltejs/ai-tools/blob/5c15fbcb5b630ac8ce0281ee1782fc2056fab853/tools/skills/svelte-core-bestpractices/references/each.md
Supports: review, limitations, install, access
https://github.com/sveltejs/ai-tools/blob/5c15fbcb5b630ac8ce0281ee1782fc2056fab853/tools/skills/svelte-core-bestpractices/references/hydratable.md
Supports: review, limitations, install, access
https://github.com/sveltejs/ai-tools/blob/5c15fbcb5b630ac8ce0281ee1782fc2056fab853/tools/skills/svelte-core-bestpractices/references/inspect.md
Supports: review, limitations, install, access
https://github.com/sveltejs/ai-tools/blob/5c15fbcb5b630ac8ce0281ee1782fc2056fab853/tools/skills/svelte-core-bestpractices/references/render.md
Supports: review, limitations, install, access
https://github.com/sveltejs/ai-tools/blob/5c15fbcb5b630ac8ce0281ee1782fc2056fab853/tools/skills/svelte-core-bestpractices/references/snippet.md
Supports: review, limitations, install, access
https://github.com/sveltejs/ai-tools/blob/5c15fbcb5b630ac8ce0281ee1782fc2056fab853/tools/skills/svelte-core-bestpractices/references/svelte-reactivity.md
Supports: review, limitations, install, access
https://svelte.dev/docs/ai/skills
Supports: install, compatibility
https://github.com/vercel-labs/skills/blob/7407f3893ad4dceab546ac002c3ef806e4000c73/README.md
Supports: install
https://github.com/vercel-labs/skills/blob/7407f3893ad4dceab546ac002c3ef806e4000c73/src/git.ts
Supports: install
https://github.com/vercel-labs/skills/blob/7407f3893ad4dceab546ac002c3ef806e4000c73/src/source-parser.ts
Supports: install