What does this MCP validate?

It validates Svelte 5 component syntax, specifically focusing on the correct usage and placement of Runes like $state and $props.

Can I use this with Cursor or VS Code?

Yes, you can use this MCP with any compatible client including Cursor, VS Code, Windsurf, and Claude.

Does it check for Svelte 4 syntax?

No, this capability is specialized for the Svelte 5 Runes API to help with the transition from older versions.

How does it handle $props errors?

It checks if $props is used with the required destructuring pattern and flags it if it is not.

What happens if I put a rune in a div instead of a script tag?

The capability will detect the rune but flag a syntax error because runes must reside within script tags.

What exactly does the validator check for?

It checks for Svelte 5 specific rules, such as ensuring $state is inside a script tag and that $props uses destructuring. You can use validate_component_syntax to get a detailed error report.

Can I just scan for runes without full validation?

Yes, the rune_inventory capability allows you to quickly identify which runes are present in a code snippet without performing a full structural audit.

How does it handle script tag boundaries?

The script_boundary capability specifically identifies the start and end of your `` blocks to ensure reactive logic is properly encapsulated.

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Connect Svelte 5 Rune Syntax Validator to ChatGPT and Claude

Set it up once and it works in ChatGPT, Claude, Cursor, and any other client you love. It all runs safely in the background, so you can relax and focus on what really matters. Stop breaking your components during the Svelte 5 migration.

Ask AI about this Connector

Developed, maintained, and hosted by Vinkius.

MCP VERIFIED · PRODUCTION READY · VINKIUS GUARANTEED

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Works with modern AI clients that support MCP, including ChatGPT, Claude, Cursor, and more.

Your AI does the work. We keep it safe and sound.

No other AI tool gives you this. Your workflow runs in the client you already love, your account stays protected, and you decide what the agent can and cannot do. It is the whole reason to make the switch.

Each Connector lives inside our infrastructure, the same place where your workflow runs. The three things below are already part of it, working quietly in the background so you never have to think about them. Nothing to add, nothing to set up, nothing to worry about.

V8 Isolate01

Each Connector runs inside its own sealed environment.

Each Connector runs inside its own sealed V8 runtime — no access to your files, your system, or other servers. A Connector never sees past its own request.

Kill Switch02

One switch stops every agent. Instantly.

One action deactivates every Connector, revokes every token, and ends every session at once. AI Governance keeps the record.

FinOps per User03

Spending limits that pause instead of surprise.

Every user keeps their own connections and credentials, isolated from everyone else. Anything that would cross your spending limit is held for your approval, not billed.

Three controls, built into the layer your AI connects through.

Curated set · 3 capabilities

We ship only the actions that matter.

Capability set01 / 01

01-03

3 capabilities in this set.

Part of 3 available through Svelte 5 Rune Validator.

01
Rune inventory
This capability scans your Svelte component to see which runes are currently present.
02
Script boundary
This capability identifies exactly where your script block starts and ends to ensure runes are placed correctly.
03
Syntax validation
This capability performs a full syntax check on your Svelte component to catch errors.

Real work

What teams actually run

Legacy Migration

Use this when converting Svelte 4 components to the new Svelte 5 syntax.

Real-time Syntax Checking

Have your AI client check code snippets as you write them in your editor.

Automated Code Audits

Run structural checks on large component files to find misplaced runes.

Learning the Runes API

Verify your understanding of $state and $props by testing snippets against the validator.

One connector, every AI

Svelte 5 Rune Validator works with the most popular AI clients.

These are the most popular clients, each with a step-by-step guide: one link, set up once, with governance and visibility built in. And because everything runs on the MCP standard, the same connection also works in any other compatible client — nothing to rebuild.

Building your own app? The connector is yours to use.

You don't need a client to put Svelte 5 Rune Validator to work: the same hosted connection plugs into your own applications and agent code, with the same governance on every request. Build with it, chat with it — one connection for both.

Observed, not estimated

671ms average. Fast in production.

Svelte 5 Rune Validator is checked daily against the live service.

Daily averagePeak 811ms

Oct 3Today

Fastest day: 538ms
Slowest day: 811ms
14-day trend: Improving-14%

Connect your client

One URL. Every client.

Activate the Connector, copy your link, and paste it into the client you already use. 3 capabilities arrive ready to run.

Preview access · not provider authentication

The vk_preview_* token belongs to Vinkius preview infrastructure. It lets Claude discover and display the capabilities of Svelte 5 Rune Validator, so you can see the experience inside your AI.

It does not authenticate your account with Svelte 5 Rune Validator. Actions requiring credentials or live account data may not run until you activate the Connector and authorize the service.

Svelte 5 Rune Validator Connector

You're all set. Choose your MCP client and follow the setup instructions.

Connector linkhttps://edge.vinkius.com/vk_preview_QfSV4w7hnTIsOdijOSHltbIPuJqPKBqCNgzdeGkH/mcp

Claude Desktop

Follow the steps below to connect in seconds.

1In Claude Desktop, open Settings → Connectors.
2Click “Add custom connector” and paste the connector link above as the remote MCP server URL.
3Click Add and start a new chat — Svelte 5 Rune Validator capabilities are ready to use.

Configuration · claude_desktop_config.jsonCopy

{
  "mcpServers": {
    "svelte-5-rune-syntax-validator-mcp": {
      "url": "https://edge.vinkius.com/vk_preview_QfSV4w7hnTIsOdijOSHltbIPuJqPKBqCNgzdeGkH/mcp"
    }
  }
}

Claude
ChatGPT
Cursor
VS Code
Windsurf
Claude Code
JetBrains
Cline

Step-by-step instructions for each client are in the guide. How to connect

Guided setup for Claude? Set up Svelte 5 Rune Validator in Claude and other AIs

See all the AI clients this connector works with ↑

Who it's for

Built for the work Svelte 5 Rune Validator owners hand off.

Frontend engineers moving legacy Svelte 4 codebases into the Svelte 5 ecosystem.

01
Frontend Developer
Hands off component snippets to the AI to verify new syntax compliance.
02
Software Architect
Uses the capability to ensure team-wide adherence to the Runes API during migrations.
03
Code Reviewer
Automates the checking of reactive primitive placement in pull requests.

FAQ

Questions Svelte 5 Rune Validator owners ask.

01
What does this MCP validate?
It validates Svelte 5 component syntax, specifically focusing on the correct usage and placement of Runes like $state and $props.
02
Can I use this with Cursor or VS Code?
Yes, you can use this MCP with any compatible client including Cursor, VS Code, Windsurf, and Claude.
03
Does it check for Svelte 4 syntax?
No, this capability is specialized for the Svelte 5 Runes API to help with the transition from older versions.
04
How does it handle $props errors?
It checks if $props is used with the required destructuring pattern and flags it if it is not.
05
What happens if I put a rune in a div instead of a script tag?
The capability will detect the rune but flag a syntax error because runes must reside within script tags.
06
What exactly does the validator check for?
It checks for Svelte 5 specific rules, such as ensuring $state is inside a script tag and that $props uses destructuring. You can use validate_component_syntax to get a detailed error report.
07
Can I just scan for runes without full validation?
Yes, the rune_inventory capability allows you to quickly identify which runes are present in a code snippet without performing a full structural audit.
08
How does it handle script tag boundaries?
The script_boundary capability specifically identifies the start and end of your `` blocks to ensure reactive logic is properly encapsulated.

Explore

More in Development

Connect Svelte 5 Rune Validator to Claude, Cursor, ChatGPT & more

Your AI does the work. We keep it safe and sound.

Each Connector runs inside its own sealed environment.

One switch stops every agent. Instantly.

Spending limits that pause instead of surprise.

We ship only the actions that matter.

01-03

Rune inventory

Script boundary

Syntax validation

What teams actually run

Legacy Migration

Real-time Syntax Checking

Automated Code Audits

Learning the Runes API

Building your own app? The connector is yours to use.

Svelte 5 Rune Validator Connector

Claude Desktop

Frontend Developer

Software Architect

Code Reviewer

What does this MCP validate?

Can I use this with Cursor or VS Code?

Does it check for Svelte 4 syntax?

How does it handle $props errors?

What happens if I put a rune in a div instead of a script tag?

What exactly does the validator check for?

Can I just scan for runes without full validation?

How does it handle script tag boundaries?

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