Here's the truth about when to use each. VIBE CODING (Fast to start, slow to scale) Good for: - Landing pages (30 min) - Quick prototypes (1-2 hours) - Single features (add a button, dark mode) Bad for: - Anything with 3+ interconnected features - Production apps - Code you need to maintain SPEC CODING (Fast to scale) Built by our community in weeks: - Complete SaaS with auth + payments (2 weeks) - E-commerce platform (3 weeks) - Mobile apps with offline support (4 weeks) - API services with tests (1-2 weeks) - AI-powered tools (2-3 weeks) The difference? Vibe coding: Week 1 feels fast. Week 4 you're rewriting everything. Spec coding: Week 1 feels slow (planning). Week 3 you're deployed. Simple rule: Prototype → Vibe coding Product → Spec coding The bottleneck isn't ideas. It's implementation capacity. Spec coding gives you sustainable velocity. What are you building? 👇 Learn the full workflow → asca.navan.ai

Developers are quietly making a shift. From vibe coding to spec coding. Why? Vibe coding is fast to start. You prompt AI, iterate, figure it out as you go. But it breaks down at scale. Your prototype works. Then you need features 5, 6, and 7. Now you're debugging spaghetti code and wondering where you went wrong. Spec coding is different. You spend 20 minutes writing a clear PRD. The AI generates production-ready code. Tests included. No surprises. Vibe coding: Fast to start, slow to finish. Spec coding: Slow to start, fast to scale. The bottleneck isn't ideas. It's implementation capacity. When you vibe code, you're still the bottleneck. When you spec code, AI becomes your build team. The question isn't "Can AI help me code faster?" It's "Do I want to write code or ship products?" Join 1,000+ builders learning spec coding: https://asca.navan.ai

There's a lot of chatter about spec coding but the real question is, how do I get started? Here's a quick, step-by-step guide to help you progress from vibe coding to spec coding: 1. Pick a small feature - Don't spec your entire app. Start with one feature. 2. Write a clear spec - What should it do? Who's it for? Use this format: > Problem statement > 3-5 requirements > Success criteria 3. Feed it to an AI agent - Use Cursor, Claude Code, or SAM (sam.navan.ai) 4. Review the output - You're the architect. Check if it matches your spec. 5. Iterate - Wrong? Refine your spec and try again. The quality of your code = the quality of your spec.

SAM is Live: Autonomous TDD Agents for Your Projects I'm excited to share something I've been building: SAM (Smart Agent Manager) - an autonomous TDD agent system that runs on Claude Code and Cursor. --- WHAT IS SAM? SAM is a team of specialized AI agents that transform your PRD into working, tested code. The key difference? Tests come first. Always. Here's the agent lineup: • Atlas - System Architect (validates your PRD) • Titan - Test Architect (writes failing tests - the RED phase) • Dyna - Developer (writes code to pass tests - the GREEN phase) • Argus - Code Reviewer (improves code quality - the REFACTOR phase) • Sage - Technical Writer (generates documentation) • Iris - UX Designer (validates user experience) SAM orchestrates them all, handing off work between agents as your feature moves through the pipeline. --- WHY TDD-FIRST MATTERS Most AI coding tools write code first, then maybe add tests later. We've all seen the result: code that works until it doesn't, bugs that slip through, refactoring that breaks things. SAM flips this. Titan writes the failing tests based on your acceptance criteria. Only then does Dyna write the minimal code to make them pass. Argus reviews and improves. The result? Code that's tested from the start. --- GETTING STARTED Installation takes one command: npx sam-agents You'll get an interactive prompt to choose your platform: 1) Claude Code - Uses /sam: slash commands 2) Cursor - Uses @agent mentions 3) Both - Install for all platforms No API keys needed. No additional costs. SAM runs on your existing Claude or Cursor subscription. --- WHAT'S IN v0.1.2 • Simpler install - Just "npx sam-agents" (we dropped the @ scope) • Interactive setup - Choose your IDE when you run it • Multi-platform - Same agents work in Claude Code and Cursor • Full TDD pipeline - RED-GREEN-REFACTOR orchestration --- TRY IT OUT 1. Navigate to any project folder 2. Run: npx sam-agents 3. Pick your platform 4. Start with /sam:core:workflows:autonomous-tdd (Claude) or @sam-tdd (Cursor)

Here's a game-changing hack for writing technical specifications with Claude Code that most developers don't know about: Use the Spec-First directive in your prompt. Instead of asking Claude Code to build a user authentication system, try this: Write a detailed technical spec for a user authentication system, including: API endpoints, data models, security considerations, edge cases, and testing strategy. Don't write code yet. Why this works: 1. Forces complete thinking - Claude maps out the entire architecture before touching code 2. Catches design flaws early - You spot issues in the spec phase, not during debugging 3. Creates living documentation - The spec becomes your project's source of truth 4. Enables better iteration - You can refine the approach before investing in implementation Once you approve the spec, follow up with: Now implement this spec, one module at a time. The result? Cleaner code, fewer rewrites, and a documented system from day one. Try it on your next project and watch your development velocity soar. To learn spec coding, visit https://asca.navan.ai