
Free guide · by Cooper Simson
Build Any App With Claude Code, No Coding
The exact 3-step Plan > Build > Test process, complete tool stack, copy-paste prompts, real examples, and troubleshooting guide.
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Most people who try to vibe code end up stuck in an endless loop of bugs, because they skip planning and jump straight into prompts. The framework that actually works is simple: Plan your idea first, build it step by step, and test each phase before moving on. This is the exact 3 step process, complete tool stack, copy paste prompts, a real worked example, and a troubleshooting guide.
What You'll Learn
- The Plan > Build > Test framework that actually works
- The exact prompts for each step
- The complete tool stack you need to get started
The Plan > Build > Test Framework
AI is a force multiplier, not an autopilot. Structure beats heroics.
The vibe code death loop: this is what happens when you skip planning: you prompt, get errors, paste the errors back, get more errors, and spend hours going in circles. Everything in this guide exists to help you avoid that loop.
Your Tool Stack
You do not need all of these, but this is the recommended stack:
- Claude (claude.ai): for planning, scoping ideas, and building your PRD. This is where you do all your thinking before you start coding.
- Claude Code: your AI code builder. This is where the actual building happens. Install:
npm install -g @anthropic-ai/claude-code - Stitch (Google): AI design tool for building professional UIs. Use this to make your app look like a real agency built it instead of default AI styles.
- GitHub: free version control. Claude Code handles git for you, but you need an account to save your code and deploy.
- Vercel or Netlify: free hosting to put your app online. Connect your GitHub repo and it auto deploys when you push code.
- Supabase: free database and authentication if your app needs user accounts or data storage. Claude Code sets this up for you.
Pick one code builder: there are many options: Claude Code, Cursor, Replit, Lovable, Base44. They all work. But pick ONE tool for the entire project. Switching tools mid build creates more problems than it solves.
Step 1: Scope Your Idea (Build A PRD)
Before you touch Claude Code, open regular Claude and scope your idea. Tell Claude to think like a senior engineer and to interview you to understand the product you want to build. After you scope the project, ask Claude to create a Product Requirements Document (PRD). This is your master plan: it maps out every feature, the tech stack, integrations, and how everything connects. This is the most important step and what separates apps that work from apps that break.
You are an expert product and SaaS builder, and a senior engineer. Your role is to
help me scope out a new product. Please interview me and ask as many questions as
you need to fully understand what I want to build. Then help me create a full
product requirement document. I also need you to suggest the best tech stack,
integrations, and features that we should build.
Work with Claude to refine the PRD until it covers everything. Then ask Claude to break it down into versions so you are not trying to build everything at once:
Can you please take the PRD we just made and break it down into a clear development
roadmap with defined scopes for a V1, V2, etc. Please ask me any questions you need
to confirm my preferences.
Finally, turn the V1 plan into a structured task list. This is what you will feed into Claude Code:
Can you please take the V1 plan and break it down into a structured task list that I
can feed into my AI code builder so that I can get the highest quality output.
Why this step matters: planning with reasoning models leads to higher quality code and gives the AI more context to understand the end goal. The PRD is like giving a contractor blueprints before asking them to build a house. Without it, Claude is guessing at what you want, and that is where bugs come from.
Step 2: Build In Claude Code (Plan Mode)
Take your PRD and task list into Claude Code. Before you start building, set the stage with this prompt. This is critical. It tells Claude how to act and prevents it from taking shortcuts that break things later:
When we are building please act as a senior level developer who only builds robust,
secure, efficient code and follows best practices. Please ensure when suggesting
tasks that they follow these instructions to reduce technical debt, and only solve
root cause issues if bugs pop up.
Then give Claude Code your PRD and enter plan mode:
- Enter plan mode and give Claude your PRD. It builds the implementation plan for you
- Ask for a step by step build plan with testing and evaluation at each stage
- Follow the task list one phase at a time. Do NOT skip ahead
- Test each phase before moving to the next. This is non negotiable
- Read what Claude suggests before approving it. If you do not understand, ask Claude to explain
- If something does not make sense, go back to your PRD and ask Claude if the suggestion aligns with the product plan
- Periodically re set the stage to make sure Claude is still following best practices
How AI coding works: you give Claude prompts. Claude writes the code, tells you what it is doing, and asks for permission before making changes. Read what it suggests before approving. If you do not understand what it is suggesting, go back to your project folder in regular Claude and ask if that suggestion makes sense based on the PRD.
Step 3: Test And Polish
Run your app after every phase, fix bugs as they come up, and when you are ready to make it look professional use a tool like Stitch to design the user interface.
- Test every feature after each build phase. Never batch testing at the end
- Copy error messages and paste them back to Claude to fix bugs
- If something fails 3 times with the same approach, ask Claude to try a completely different solution
- When the core functionality works, use Stitch to design a polished UI
- Ask Claude to help you deploy to Vercel or Netlify when you are ready to go live
The UI problem: 90% of vibe coded apps look the same: purple gradients, default fonts, generic layouts. Using Stitch to design your interface makes your app look like it came from a real agency. This is the difference between a side project and something you can show to clients or customers.
Common Mistakes To Avoid
- Skipping the PRD: the number 1 cause of the death loop. Always plan first
- Trying to build everything at once: stick to V1 scope. Features can wait for V2
- Not testing between phases: if Phase 1 is broken, Phase 2 will be worse. Fix before moving on
- Switching tools mid project: pick Claude Code (or whatever tool) and stick with it for the entire build
- Not setting the stage: without the stage setting prompt, Claude takes shortcuts, hardcodes values, and creates technical debt
- Ignoring what Claude suggests: read the suggestions. If you do not understand, ask Claude to explain before approving
- Prompting too vaguely: "build me an app" will not work. The more specific your PRD and task list, the better the output
Ideas To Get Started
- Audit your day and find manual processes. Anything you do on a computer more than twice a week is a candidate (example: a tax receipt organizer, a client invoice tracker)
- Solve a problem for someone you know. Build a tool for a friend, partner, or colleague (example: a shopping list app, a client proposal generator, an appointment scheduler)
- Look for ways to add value in your industry. Tools that save time or money are easiest to validate (example: a roofing quote calculator, a restaurant inventory counter, a lead intake form)
Start small: your first app does not need to change the world. Build something simple that solves one problem. A calculator, a form, a dashboard. Get the process down first, then tackle bigger projects. The framework is the same regardless of complexity.
Real Example: Stock Whisper
Stock Whisper is a voice powered inventory counting app built for bars, restaurants, and retail shops. Users speak into their phone to count inventory and AI extracts the product names, quantities, and variants automatically. Here is exactly how it was built using this framework:
- PRD in Claude. Claude interviewed on the target users (bar managers, retail owners), the core features (voice recording, AI parsing, spreadsheet view), and the tech stack. The result: Next.js, Supabase for the database, OpenAI Whisper for speech to text, and the Claude API for parsing inventory from transcripts.
- V1 scope. Claude broke the PRD into V1 (core counting flow: record voice, parse items, display results) and V2 (team accounts, session history, zone management). V1 only, first.
- Task list to Claude Code. The structured task list went into Claude Code with the senior developer stage setting prompt and plan mode. Claude built the implementation plan in 6 phases: database setup, auth, voice recording, AI parsing, results display, and deployment.
- Build phase by phase. Each phase was tested before the next. The voice recording phase had a tricky mobile audio compatibility issue: copy the error, paste it back to Claude, and it fixed it by switching audio codecs. Total build time: about 3 days of focused sessions.
- UI polish with Stitch. Once the core worked, Stitch designed the interface. Custom color scheme (greens and creams), clean typography, professional layout. The app went from looking like a homework project to looking like a real product.
Troubleshooting Guide
- Claude is stuck in a loop. If Claude keeps trying the same fix and it keeps failing, say: "This approach isn't working. Please suggest a completely different solution to this problem."
- The app works locally but breaks when deployed. This is usually an environment variable issue. Ask Claude: "Can you check that all environment variables are properly set for production deployment?" Make sure API keys and database URLs are configured in your hosting platform.
- Claude made changes that broke something else. Say: "The last change broke [describe what's broken]. Can you revert that change and try a different approach that doesn't affect [the thing that broke]?" Claude can use git to undo changes.
- You don't understand what Claude is suggesting. Do not just approve it. Go back to regular Claude, paste the suggestion, and ask: "Based on my PRD, does this suggestion make sense? Explain it to me like I'm not technical." Never approve code you do not understand.
- The app looks generic / like AI built it. This is the Stitch moment. Do not try to fix the design with prompts in Claude Code. Use Stitch to generate a professional design system, then apply it.
Go Deeper
Prefer a printable version? Grab the PDF: https://drive.google.com/file/d/1Fj-HMh5PdvDKi9CBNE4YkvKe_vEe1fi0/view?usp=drivesdk
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