// start-shorthand
()=> add validation for email field
()=> check if user is authenticated before allowing access
// end-shorthand

// Collaborator provides: "Use our logging utility from utils/logger.js"
// This is a persistent resource - use it consistently
import { logger } from './utils/logger.js';

function processData(data) {
  logger.info('Processing data batch', { count: data.length });
  // Implementation continues...
}

// Collaborator provides: "For this migration, use this data mapping from migration-map.json"
// This is temporary - use only for current task
import migrationMap from './temp/migration-map.json';

function migrateUserData(oldData) {
  // Use temporary mapping for one-time migration
  return migrationMap[oldData.type] || oldData;
}

()=>        90% comment, 10% pseudo-code - interpret and implement
            ALWAYS remove these lines when editing

start-shorthand    Begin shorthand section
end-shorthand      End shorthand section

openPrompt         ["quasi-coder", "quasi-code", "shorthand"]
language:comment   Single or multi-line comment in target language
openMarker         "${language:comment} start-shorthand"
closeMarker        "${language:comment} end-shorthand"

openPrompt = ["quasi-coder", "quasi-code", "shorthand"]
// Triggers that indicate quasi-coder should be used

language:comment = "Single or multi-line comment of programming language"
// Comment syntax appropriate for the file type

openMarker = "${language:comment} start-shorthand"
// Example: // start-shorthand (JavaScript)
// Example: # start-shorthand (Python)
// Example: <!-- start-shorthand --> (HTML)

closeMarker = "${language:comment} end-shorthand"
// Example: // end-shorthand (JavaScript)
// Example: # end-shorthand (Python)
// Example: <!-- end-shorthand --> (HTML)

// start-shorthand
()=> create function that validates user input
()=> check email format is correct
()=> make sure password is at least 8 characters
()=> return true if valid, false otherwise
// end-shorthand

/**
 * Validates user registration input
 * @param {string} email - User email address
 * @param {string} password - User password
 * @returns {boolean} True if input is valid, false otherwise
 */
function validateUserInput(email, password) {
  // Validate email format using standard regex pattern
  const emailRegex = /^[^\s@]+@[^\s@]+\.[^\s@]+$/;
  if (!emailRegex.test(email)) {
    return false;
  }

  // Validate password meets minimum length requirement
  if (!password || password.length < 8) {
    return false;
  }

  return true;
}

undefined

**Expert Translation** (Python doesn't have forEach, use appropriate Python pattern):
```python

undefined

// start-shorthand
()=> fetch current weather from API
()=> save response to weather.json file
// end-shorthand

// start-shorthand
()=> check if user is logged in
()=> if not, redirect to login page
()=> if yes, load user dashboard with their data
()=> show error if data fetch fails
// end-shorthand