CSS Specificity Calculator Connector for AI agents.
3 live capabilities
Resolve CSS cascade conflicts and calculate selector priority
Waiting for input…
Why people use CSS Specificity Calculator
Stop fighting the CSS cascade with CSS Selector Specificity Calculator
This MCP changes that. Instead of manual hunting, you just hand the selectors to your agent. It calculates the exact weight and tells you exactly which rule is winning. You get the answer in seconds, not minutes.
What Vinkius changes
You stop guessing which CSS rule wins and start knowing.
Use it from Claude, ChatGPT, Cursor or another AI client you already have.
One account · 6,100+ Connectors
- Real-world use case 01
Fixing overridden styles
A developer notices a button color isn't changing.
- Real-world use case 02
Validating complex selectors
While writing a complex nested selector, a dev uses validate_selector_syntax to ensure they didn't mess up a combinator.
- Real-world use case 03
Refactoring design systems
An engineer uses calculate_specificity to ensure new utility classes don't accidentally get out-prioritized by old component styles.
Complete set · 3capabilities
The complete CSS Specificity Calculator capability set.
These are the exact actions your AI can choose when you ask it to work with CSS Specificity Calculator.
01—03
3 capabilities in this set.
Part of 3 available through CSS Specificity Calculator.
- 01 Capability
Validate selector syntax
Checks if a selector string is valid CSS. It catches typos and malformed combinators instantly.
- 02 Capability
Calculate specificity
Returns the precise (ID, Class, Type) triplet. This tells you exactly how heavy a selector is.
- 03 Capability
Compare specificity
Compares two selectors. It determines which rule will actually win in the CSS cascade.
Set up in minutes
One URL. Then ask CSS Specificity Calculator to work.
Claude and ChatGPT only need the Connector URL. Copy it once, add it in settings, and use CSS Specificity Calculator from the conversation.
Choose your client
Live previewAdvanced clients IDE · CLI
Claude · Web + desktop
Connector URL · ready to paste
Streamable HTTPhttps://edge.vinkius.com/vk_preview_fsUfV5nl0qVvhXqfsDR62SSKiM4Y9vxLtPVGehzo/mcp - Step 01
Open Connectors
In Claude Web or Claude Desktop, open Settings and choose Connectors.
- Step 02
Add the URL
Choose Add custom connector, name it CSS Specificity Calculator, and paste the URL above.
- Step 03
Turn it on in chat
Select +, open Connectors, and enable CSS Specificity Calculator for the conversation.
ChatGPT · Web + desktop
Connector URL · ready to paste
Streamable HTTPhttps://edge.vinkius.com/vk_preview_fsUfV5nl0qVvhXqfsDR62SSKiM4Y9vxLtPVGehzo/mcp - Step 01
Open MCP settings
On desktop, open Settings and MCP servers. On web, open your workspace app or connector settings.
- Step 02
Add the URL
Choose Add server with Streamable HTTP, or create a custom MCP app, then paste the CSS Specificity Calculator URL.
- Step 03
Save and start
Save the connection and enable CSS Specificity Calculator in your conversation. Desktop may ask you to restart once.
Cursor · IDE configuration
Advanced setup
{
"mcpServers": {
"css-selector-specificity-calculator": {
"url": "https://edge.vinkius.com/vk_preview_fsUfV5nl0qVvhXqfsDR62SSKiM4Y9vxLtPVGehzo/mcp"
}
}
}- Step 01
Open MCP Settings
Press Cmd+Shift+P (macOS) or Ctrl+Shift+P (Windows/Linux) → search "MCP Settings"
- Step 02
Add the server config
Paste the JSON configuration above into the mcp.json file that opens
- Step 03
Save the file
Cursor will automatically detect the new Connector
- Step 04
Start using CSS Specificity Calculator
Open Agent mode in chat and ask: "Using CSS Specificity Calculator, help me...". 3 tools available
VS Code Copilot · IDE configuration
Advanced setup
{
"mcpServers": {
"css-selector-specificity-calculator": {
"url": "https://edge.vinkius.com/vk_preview_fsUfV5nl0qVvhXqfsDR62SSKiM4Y9vxLtPVGehzo/mcp"
}
}
}- Step 01
Create MCP config
Create a .vscode/mcp.json file in your project root
- Step 02
Add the server config
Paste the JSON configuration above
- Step 03
Enable Agent mode
Open GitHub Copilot Chat and switch to Agent mode using the dropdown
- Step 04
Start using CSS Specificity Calculator
Ask Copilot: "Using CSS Specificity Calculator, help me...". 3 tools available
Windsurf · IDE configuration
Advanced setup
{
"mcpServers": {
"css-selector-specificity-calculator": {
"url": "https://edge.vinkius.com/vk_preview_fsUfV5nl0qVvhXqfsDR62SSKiM4Y9vxLtPVGehzo/mcp"
}
}
}- Step 01
Open MCP Settings
Go to Settings → MCP Configuration or press Cmd+Shift+P and search "MCP"
- Step 02
Add the server
Paste the JSON configuration above into mcp_config.json
- Step 03
Save and reload
Windsurf will detect the new server automatically
- Step 04
Start using CSS Specificity Calculator
Open Cascade and ask: "Using CSS Specificity Calculator, help me...". 3 tools available
Cline · IDE configuration
Advanced setup
{
"mcpServers": {
"css-selector-specificity-calculator": {
"url": "https://edge.vinkius.com/vk_preview_fsUfV5nl0qVvhXqfsDR62SSKiM4Y9vxLtPVGehzo/mcp"
}
}
}- Step 01
Open Cline MCP Settings
Click the Connectors icon in the Cline sidebar panel
- Step 02
Add remote server
Click "Add Connector" and paste the configuration above
- Step 03
Enable the server
Toggle the server switch to ON
- Step 04
Start using CSS Specificity Calculator
Ask Cline: "Using CSS Specificity Calculator, help me...". 3 tools available
Claude Code · Terminal command
Advanced setup
claude mcp add css-selector-specificity-calculator --transport http "https://edge.vinkius.com/vk_preview_fsUfV5nl0qVvhXqfsDR62SSKiM4Y9vxLtPVGehzo/mcp"- Step 01
Install Claude Code
Run npm install -g @anthropic-ai/claude-code if not already installed
- Step 02
Add the Connector
Run the command above in your terminal
- Step 03
Verify the connection
Run claude mcp to list connected servers, or type /mcp inside a session
- Step 04
Start using CSS Specificity Calculator
Ask Claude: "Using CSS Specificity Calculator, show me...". 3 tools are ready
Where the request belongs
Work CSS Specificity Calculator can move forward.
Frontend developers and UI engineers who are tired of fighting the CSS cascade and hunting down why their styles aren't applying.
Frontend Engineer
Uses this to quickly debug why a component's styles are being overridden by a global stylesheet.
UI Developer
Checks selector priority when building complex design systems with nested components.
Web Designer
Validates selector syntax to ensure code is clean and follows standard CSS patterns.
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Bring your own AI
Change the model, client or framework. Keep CSS Specificity Calculator connected.
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Claude -
ChatGPT -
Gemini -
Cursor -
VS Code -
Windsurf -
ZCode -
Cline -
Zed -
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Kiro -
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Vercel AI SDK
Before you connect
Questions about CSS Specificity Calculator.
The practical details behind the request, access and result.
How can the CSS Selector Specificity Calculator help me debug my styles?
It allows your AI agent to calculate the exact weight of your selectors and compare them, so you can see exactly why one rule is overriding another.
Can I use this CSS Selector Specificity Calculator to check for typos?
Yes, you can use it to verify that your selector syntax is correct and follows standard CSS rules before you add it to your stylesheet.
Will this CSS Selector Specificity Calculator work with my existing AI client?
Yes, once connected via Vinkius, it works with any MCP-compatible client like Claude, Cursor, or VS Code.
Does the CSS Selector Specificity Calculator handle complex selectors?
Yes, it can calculate the exact (ID, Class, Type) triplet for even the most deeply nested and complex CSS selectors.
How does the CSS Selector Specificity Calculator determine which rule wins?
It compares the specificity scores of two selectors to identify which one has higher priority in the CSS cascade.
How is the specificity score calculated?
The score is a triplet representing IDs, Classes/Attributes/Pseudo-classes, and Type/Pseudo-elements respectively.
Can I check if my CSS selector is valid?
Yes, you can use the validate_selector_syntax capability to verify if a selector string follows standard CSS rules.
Which selector wins in a conflict?
The selector with the higher specificity score wins. You can use compare_specificity to find the winner between two selectors.
One connection away
Give your agent a direct line to CSS Specificity Calculator.
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