explainx.ainewsletter3.4k
Frontend

svelte5-best-practices▌

ejirocodes/agent-skills · updated May 27, 2026

MDX-style export adds YAML metadata + attribution linking explainx.ai and this canonical listing URL.

$npx skills add https://github.com/ejirocodes/agent-skills --skill svelte5-best-practices
0 commentsdiscussion
summary

Svelte 5 runes, snippets, and SvelteKit patterns for modern component development.

  • ›Covers all Svelte 5 runes ($state, $derived, $effect, $props, $bindable, $inspect) with reactive state and computed value patterns
  • ›Explains snippets syntax ({#snippet}, {@render}) as the replacement for slots and slot props
  • ›Includes event handling migration from on: directives to onclick handlers and callback props, plus SvelteKit load functions and form actions
  • ›Provides TypeScript typing for props,
skill.md

Svelte 5 Best Practices

Quick Reference

Topic When to Use Reference
Runes $state, $derived, $effect, $props, $bindable, $inspect runes.md
Snippets Replacing slots, {#snippet}, {@render} snippets.md
Events onclick handlers, callback props, context API events.md
TypeScript Props typing, generic components typescript.md
Migration Svelte 4 to 5, stores to runes migration.md
SvelteKit Load functions, form actions, SSR, page typing sveltekit.md
Performance Universal reactivity, avoiding over-reactivity, streaming performance.md

Essential Patterns

Reactive State

<script>
  let count = $state(0);           // Reactive state
  let doubled = $derived(count * 2); // Computed value
</script>

Component Props

<script>
  let { name, count = 0 } = $props();
  let { value = $bindable() } = $props(); // Two-way binding
</script>

Snippets (replacing slots)

<script>
  let { children, header } = $props();
</script>

{@render header?.()}
{@render children()}

Event Handlers

<!-- Svelte 5: use onclick, not on:click -->
<button onclick={() => count++}>Click</button>

Callback Props (replacing createEventDispatcher)

<script>
  let { onclick } = $props();
</script>

<button onclick={() => onclick?.({ data })}>Click</button>

Common Mistakes

  1. Using let without $state - Variables are not reactive without $state()
  2. Using $effect for derived values - Use $derived instead
  3. Using on:click syntax - Use onclick in Svelte 5
  4. Using createEventDispatcher - Use callback props instead
  5. Using <slot> - Use snippets with {@render}
  6. Forgetting $bindable() - Required for bind: to work
  7. Setting module-level state in SSR - Causes cross-request leaks
  8. Sequential awaits in load functions - Use Promise.all for parallel requests
how to use svelte5-best-practices

How to use svelte5-best-practices on Cursor

AI-first code editor with Composer

1

Prerequisites

Before installing skills in Cursor, ensure your development environment meets these requirements:

  • ›Cursor installed and configured on your development machine
  • ›Node.js version 16.0+ with npm package manager (verify with node --version)
  • ›Active project directory or workspace where you want to add svelte5-best-practices
2

Execute installation command

Execute the skills CLI command in your project's root directory to begin installation:

$npx skills add https://github.com/ejirocodes/agent-skills --skill svelte5-best-practices

The skills CLI fetches svelte5-best-practices from GitHub repository ejirocodes/agent-skills and configures it for Cursor.

3

Select Cursor when prompted

The CLI will show a list of available agents. Use arrow keys to navigate and space to select Cursor:

◆ Which agents do you want to install to?
│
│ ── Universal (.agents/skills) ── always included ────
│ • Amp
│ • Antigravity
│ • Cline
│ • Codex
│ ●Cursor(selected)
│ • Cursor
│ • Windsurf
4

Verify installation

Confirm successful installation by checking the skill directory location:

.cursor/skills/svelte5-best-practices

Reload or restart Cursor to activate svelte5-best-practices. Access the skill through slash commands (e.g., /svelte5-best-practices) or your agent's skill management interface.

⚠

Security & Verification Notice

We perform automated surface-level scans (Gen AI Scanner, Socket, Snyk) during installation. These checks detect common vulnerabilities but do not guarantee complete security. Always review skill source code and verify the publisher's reputation before production use.

Skills execute code in your development environment. Always verify the publisher's identity, review recent commits, and test in isolated environments before production deployment.

Additional Resources

›View source code on GitHub›Skills CLI documentation›Learn more about Cursor›What are agent skills?

List & Monetize Your Skill

Submit your Claude Code skill and start earning

GET_STARTED →

Use Cases▌

Task Automation & Efficiency

Automate repetitive workflows and reduce manual effort

Example

Generate reports, summarize documents, draft communications

✓

Save 3-5 hours per week on routine tasks

Knowledge Enhancement

Learn new skills, understand complex topics, get expert guidance

Example

Explain concepts, provide examples, suggest learning resources

✓

Accelerate learning and skill development by 2x

Quality Improvement

Enhance output quality through reviews, suggestions, and refinements

Example

Review drafts, suggest improvements, catch errors

✓

Improve work quality by 30-40% with less effort

Implementation Guide▌

Prerequisites

  • ›Claude Desktop or compatible AI client with skill support
  • ›Clear understanding of task or problem to solve
  • ›Willingness to iterate and refine outputs

Time Estimate

15-45 minutes depending on use case complexity

Installation Steps

  1. 1.Install skill using provided installation command
  2. 2.Test with simple use case relevant to your work
  3. 3.Evaluate output quality and relevance
  4. 4.Iterate on prompts to improve results
  5. 5.Integrate into regular workflow if valuable

Common Pitfalls

  • ⚠Expecting perfect results without iteration
  • ⚠Not providing enough context in prompts
  • ⚠Using skill for tasks outside its intended scope
  • ⚠Accepting outputs without review and validation

Best Practices▌

✓ Do

  • +Start with clear, specific prompts
  • +Provide relevant context and constraints
  • +Review and refine all outputs before using
  • +Iterate to improve output quality
  • +Document successful prompt patterns

✗ Don't

  • −Don't use without understanding skill limitations
  • −Don't skip validation of outputs
  • −Don't share sensitive information in prompts
  • −Don't expect skill to replace human judgment

💡 Pro Tips

  • ★Be specific about desired format and style
  • ★Ask for multiple options to choose from
  • ★Request explanations to understand reasoning
  • ★Combine AI efficiency with human expertise

When to Use This▌

✓ Use When

Use when skill capabilities match your task, clear ROI on time saved, and you can validate outputs. Best for repetitive tasks, learning, and quality improvement.

✗ Avoid When

Avoid when task requires deep expertise you can't validate, involves sensitive decisions, or when learning process is more valuable than speed of completion.

Learning Path▌

  1. 1Familiarize yourself with skill capabilities and limitations
  2. 2Start with low-risk, non-critical tasks
  3. 3Progress to more complex and valuable use cases
  4. 4Build expertise through regular use and experimentation

Discussion

Product Hunt–style comments (not star reviews)
  • No comments yet — start the thread.
general reviews

Ratings

4.6★★★★★42 reviews
  • ★★★★★Nia Ghosh· Dec 24, 2024

    svelte5-best-practices is among the better-maintained entries we tried; worth keeping pinned for repeat workflows.

  • ★★★★★Aisha Diallo· Dec 24, 2024

    We added svelte5-best-practices from the explainx registry; install was straightforward and the SKILL.md answered most questions upfront.

  • ★★★★★Mei Rao· Dec 20, 2024

    svelte5-best-practices reduced setup friction for our internal harness; good balance of opinion and flexibility.

  • ★★★★★Tariq Harris· Dec 16, 2024

    Keeps context tight: svelte5-best-practices is the kind of skill you can hand to a new teammate without a long onboarding doc.

  • ★★★★★Chinedu Sethi· Nov 27, 2024

    svelte5-best-practices has been reliable in day-to-day use. Documentation quality is above average for community skills.

  • ★★★★★Evelyn Li· Nov 15, 2024

    Solid pick for teams standardizing on skills: svelte5-best-practices is focused, and the summary matches what you get after install.

  • ★★★★★Mei Perez· Nov 11, 2024

    I recommend svelte5-best-practices for anyone iterating fast on agent tooling; clear intent and a small, reviewable surface area.

  • ★★★★★Chinedu Taylor· Oct 18, 2024

    Solid pick for teams standardizing on skills: svelte5-best-practices is focused, and the summary matches what you get after install.

  • ★★★★★Shikha Mishra· Oct 10, 2024

    Useful defaults in svelte5-best-practices — fewer surprises than typical one-off scripts, and it plays nicely with `npx skills` flows.

  • ★★★★★Luis Brown· Oct 6, 2024

    svelte5-best-practices has been reliable in day-to-day use. Documentation quality is above average for community skills.

showing 1-10 of 42

1 / 5