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Atlas Whoff
Atlas Whoff

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Cursor AI Editor Workflows: From Code Generation to Refactoring at Scale

#cursor #ai #typescript #productivity

Cursor AI Editor Workflows: From Code Generation to Refactoring at Scale

Cursor isn't just autocomplete. Used correctly, it's a force multiplier for every stage of development.
Here are the workflows that actually save time.

Tab Completion vs Chat vs Composer

Cursor has three distinct modes:

  • Tab: Single-line/block suggestions as you type. Use it constantly.
  • Cmd+K: Inline edit. Select code, describe the change.
  • Cmd+L (Chat): Ask questions, get explanations, generate in sidebar.
  • Cmd+I (Composer): Multi-file generation. Agent mode.

Most users only use Tab. The real power is in Composer.

Workflow 1: Feature from Scratch 

Cmd+I (Composer)

"Create a /api/waitlist route that:
- Accepts POST with { email: string }
- Validates email format with zod
- Stores in PostgreSQL via Prisma
- Sends welcome email via Resend
- Returns { success: true } or validation errors
- Include the Prisma schema addition and a test"
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Composer generates the route, updates schema.prisma, creates the test file, and shows a diff.

Workflow 2: Inline Refactoring 

// Select this function, press Cmd+K:
async function getUser(id) {
  const res = await fetch('/api/user/' + id)
  const data = await res.json()
  return data
}

// Cmd+K: "Add TypeScript types, error handling, and use the api() helper from lib/api.ts"
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Result:

async function getUser(id: string): Promise<User> {
  const data = await api<User>(`/user/${id}`)
  if (!data) throw new Error(`User ${id} not found`)
  return data
}
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Workflow 3: Understanding Unfamiliar Code 

Select 100 lines of complex auth middleware
Cmd+L
"Explain what this middleware does, what edge cases it handles,
and where it would fail"
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Better than reading docs. Explains in context of your actual code.

Workflow 4: Test Generation 

Select a function
Cmd+L
"Write Vitest tests for this function. Cover:
- Happy path
- Edge cases (empty input, null, large values)
- Error cases
Use vi.mock() for any external dependencies."
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Workflow 5: Large Codebase Refactoring 

Cmd+I (Composer) with @codebase

"Find all places where we're using the old UserService class
and refactor them to use the new useUser() hook instead.
Don't change the UserService class itself."
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Composer uses @codebase to search across all files, then shows a multi-file diff.

.cursorrules 

# .cursorrules (project-level instructions)
You are working on a Next.js 14 SaaS app.

Tech stack:
- Next.js 14 App Router
- TypeScript strict mode
- Prisma with PostgreSQL
- tRPC for API routes
- Tailwind + shadcn/ui
- Vitest for testing

Conventions:
- Use server components by default, 'use client' only when needed
- All API input validated with Zod
- Errors thrown as TRPCError with appropriate code
- Tests in __tests__ directory next to source file
- Use absolute imports (@/components, @/lib)
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This context is injected into every chat/composer request. Dramatically improves output quality.

When Cursor Doesn't Help

  • System design decisions (architecture, data modeling) — think first
  • Security-sensitive code — always review generated auth/crypto code
  • When you don't understand the domain — understand before generating

The tool accelerates good engineers. It doesn't replace the thinking.

The Ship Fast Skill Pack works inside Claude Code the same way .cursorrules works in Cursor — structured context that produces better output, every time. $49 one-time.

Build Your Own Jarvis

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Tools I actually use daily:

  • HeyGen — AI avatar videos
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Free: Get the Atlas Playbook — the exact prompts and architecture behind this. Comment "AGENT" below and I'll send it.

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