How to fix Cursor AI ignoring custom ESLint plugin rules in a monorepo?

 

Fixing Cursor AI Ignoring Custom ESLint Plugin Rules in a Monorepo

 

When dealing with a monorepo and custom ESLint plugin rules, it’s essential to have a precise configuration to ensure that tools like Cursor AI respect and implement these rules accurately. Below is a detailed guide on how to resolve issues when Cursor AI ignores custom ESLint plugin rules.

 

Understanding the Environment

 

• Cursor AI is an AI assistant designed to help streamline development workflows, and understanding its environment helps in troubleshooting.
• Monorepo setups often consist of multiple packages, potentially contributing to configuration challenges.
• Ensure Node.js and ESLint are properly installed and updated in your development environment.

 

Ensuring Proper ESLint Configuration

 

• Navigate to your monorepo's root directory and inspect the ESLint configuration file (.eslintrc, .eslintrc.json, or equivalent).
• Ensure that the ESLint configuration includes your custom plugin with appropriate settings. Example configuration:

  {
    "plugins": ["your-custom-plugin"],
    "rules": {
      "your-custom-plugin/rule-name": "error"
    }
  }
  

• Check that custom rules are correctly defined and exported in your custom plugin.

 

Setting Up Monorepo Structure

 

• Organize your monorepo to clearly separate packages, each with its configuration managed via package.json.
• Ensure that each package has a symlinked node\_modules directory that correctly resolves dependencies, including ESLint and custom plugins.
• Use tools like Lerna or Yarn Workspaces to manage your monorepo setup, improving consistency across packages.

 

Integrating ESLint in Monorepo Packages

 

• For each package within the monorepo, create an ESLint configuration file if needed, extending the root ESLint config for consistency.
• Example for extending ESLint configuration in a package:

  {
    "extends": ["../../.eslintrc"],
    "rules": {
      "your-custom-plugin/another-rule": "warn"
    }
  }
  

• Ensure that all ESLint configurations are valid by running eslint --debug to trace rule resolution.

 

Configuring Cursor AI

 

• Ensure Cursor AI is configured to recognize your project's settings, considering potential workspace configurations.
• Configure Cursor AI to use the correct symlinked ESLint configuration, consistent with your monorepo setup.
• If Cursor AI does not automatically recognize custom plugins, manually specify the configuration file path within the tool's settings, if available.

 

Testing ESLint Integration

 

• Run ESLint manually in the monorepo root and in individual packages to ensure all rules, including custom ones, are being applied:

  npx eslint . --ext .js,.jsx,.ts,.tsx
  

• Verify that any ignored custom plugin rules are being caught and reported by ESLint outside of Cursor AI.
• Ensure any IDE plugins linked to Cursor AI are properly updated and synced with the latest ESLint configurations.

 

Debugging and Adjustments

 

• If issues persist, return to your ESLint configuration files and check for any overlooked typos or syntax errors.
• Consider updating both ESLint and your custom plugin to the latest versions, ensuring compatibility.
• Use verbose logging in Cursor AI to capture detailed information about configuration processing to diagnose further issues.

 

Finalizing and Maintenance

 

• Once resolved, document the configuration steps and any Cursor AI settings adjustments for team consistency.
• Regularly revisit and update the monorepo structure, ESLint configurations, and plugins as dependencies evolve.

 

Following these steps should equip you with the tools and configurations necessary to ensure Cursor AI correctly respects and implements your custom ESLint plugin rules within a monorepo setup.