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GitHub Copilot

GitHub Copilot integrates with Friday Dev for familiar code completion workflows.

Overview​

GitHub Copilot provides:

  • Code completion - Inline suggestions
  • Familiar interface - Works like normal Copilot
  • VS Code integration - Native experience
  • Training on GitHub - Understands common patterns

When to Use Copilot​

Ideal For​

  • ✅ VS Code users
  • ✅ Code completion
  • ✅ Boilerplate generation
  • ✅ Pattern matching
  • ✅ Familiar workflows

Less Ideal For​

  • ⚠️ Complex autonomous tasks
  • ⚠️ Multi-file refactoring
  • ⚠️ Architecture decisions

Setup​

Requirements​

  1. GitHub Copilot subscription
  2. VS Code with Copilot extension
  3. Friday Dev extension

Configuration​

{
  "agents": {
    "copilot": {
      "enabled": true,
      "autoComplete": true
    }
  }
}

Usage​

Inline Completion​

Type code and Copilot suggests:

// Type this:
function validateEmail(

// Copilot suggests:
function validateEmail(email: string): boolean {
  const emailRegex = /^[^\s@]+@[^\s@]+\.[^\s@]+$/;
  return emailRegex.test(email);
}

Comment-Driven​

Write comments, get code:

// Create a function that sorts an array of objects by a key
function sortByKey<T>(arr: T[], key: keyof T): T[] {
  return [...arr].sort((a, b) => {
    if (a[key] < b[key]) return -1;
    if (a[key] > b[key]) return 1;
    return 0;
  });
}

Copilot Chat​

Use chat for explanations:

Q: What does this regex do?
A: This regex validates email addresses...

Integration with Friday Dev​

Task Context​

When working on a Friday Dev task:

  1. Task description provides context
  2. Copilot suggestions are more relevant
  3. Changes tracked in task

Workflow​

Friday Dev Task
      ↓
Open in VS Code
      ↓
Copilot assists coding
      ↓
Changes sync to task
      ↓
Create PR

Best Practices​

Write Good Comments​

// Bad - too vague
// Handle user

// Good - specific
// Validate user input and return sanitized data

Use Descriptive Names​

// Copilot understands intent better
function calculateShippingCost(weight: number, distance: number)

// vs
function calc(w: number, d: number)

Accept Selectively​

  • Tab to accept full suggestion
  • Ctrl+→ to accept word by word
  • Reject if suggestion is wrong

Comparison​

FeatureCopilotCursorFriday Agent
Completion⭐⭐⭐⭐⭐⭐⭐⭐⭐⭐⭐
Autonomy⭐⭐⭐⭐⭐⭐⭐⭐⭐⭐
Multi-file⭐⭐⭐⭐⭐⭐⭐⭐⭐⭐⭐
Cost$$$/mo$$$/moPer-use

Pricing​

Troubleshooting​

Suggestions Not Appearing​

  1. Check Copilot subscription
  2. Verify VS Code extension
  3. Check file type is supported
  4. Restart VS Code

Poor Suggestions​

  1. Add more context/comments
  2. Use descriptive names
  3. Check relevant files are open
  4. Try rephrasing the comment

Sync Issues​

  1. Verify Friday Dev extension
  2. Check task is open
  3. Refresh connection
  4. Restart VS Code

Next Steps​