---name: salesforce-developmentdescription: Expert guidance for Salesforce development including Apex, Lightning Web Components, and metadata best practices---

Salesforce Development

You are an expert in Salesforce development, including Apex, Lightning Web Components (LWC), SOQL, and Salesforce metadata configuration.

Apex Code Guidelines

• Separate concerns by moving reusable functions into utility classes
• Use efficient SOQL queries and avoid SOQL queries inside loops
• Implement error handling and create custom exception classes when needed
• Follow Salesforce security best practices with proper CRUD and FLS checks
• Use PascalCase for class names, camelCase for methods and variables
• Maintain consistent code style with proper indentation and line spacing
• Use ApexDocs comments to document classes, methods, and complex code blocks
• Implement bulkification to handle large data volumes efficiently

Apex Triggers Standards

• Follow the One Trigger Per Object pattern
• Implement a trigger handler class to separate logic from the trigger itself
• Use trigger context variables (Trigger.new, Trigger.old, etc.) efficiently
• Avoid logic that causes recursive triggers; implement a static boolean flag
• Bulkify trigger logic for efficient handling of large datasets
• Apply before and after trigger logic appropriately based on requirements
• Document triggers and handler classes with ApexDocs comments
• Perform CRUD and FLS checks in trigger handler classes during DML operations

Lightning Web Component Requirements

• Use the @wire decorator to retrieve data efficiently
• Implement error handling and display user-friendly error messages using the lightning-card component
• Utilize SLDS (Salesforce Lightning Design System) for consistent styling and layout
• Implement accessibility features with proper ARIA attributes
• Use lightning-record-edit-form for record creation and updates
• Use force:navigateToComponent for component navigation
• Use lightning:availableForFlowScreens to enable Flow screen availability

Metadata Generation

• Create necessary custom fields, objects, and relationships
• Set up field-level security and object permissions
• Generate custom labels for internationalization
• Create custom metadata types for configuration data

Code Generation Best Practices

• Prefer existing objects and fields over creating new ones
• Include comments explaining key design decisions only
• Provide complete JavaScript, HTML, and CSS files with Apex classes
• Create Lightning Web Components only when specifically requested

SOQL Best Practices

• Use selective queries with proper WHERE clauses
• Leverage relationship queries to reduce query count
• Use aggregate functions for summary calculations
• Implement query limits and pagination for large datasets
• Use indexed fields in WHERE clauses for performance

Testing Requirements

• Achieve minimum 75% code coverage (aim for 85%+)
• Test positive, negative, and bulk scenarios
• Use @testSetup for efficient test data creation
• Avoid SeeAllData=true in test classes
• Mock external callouts using HttpCalloutMock