惯性聚合 高效追踪和阅读你感兴趣的博客、新闻、科技资讯
阅读原文 在惯性聚合中打开

推荐订阅源

GbyAI
GbyAI
博客园_首页
OSCHINA 社区最新新闻
OSCHINA 社区最新新闻
阮一峰的网络日志
阮一峰的网络日志
酷 壳 – CoolShell
酷 壳 – CoolShell
博客园 - 司徒正美
V
V2EX
Cloudbric
Cloudbric
Hugging Face - Blog
Hugging Face - Blog
腾讯CDC
量子位
博客园 - 三生石上(FineUI控件)
博客园 - 叶小钗
K
Kaspersky official blog
博客园 - 【当耐特】
T
Tenable Blog
L
Lohrmann on Cybersecurity
The Cloudflare Blog
S
Schneier on Security
A
Arctic Wolf
Latest news
Latest news
C
Cyber Attacks, Cyber Crime and Cyber Security
罗磊的独立博客
T
The Exploit Database - CXSecurity.com
Cisco Talos Blog
Cisco Talos Blog
小众软件
小众软件
P
Privacy & Cybersecurity Law Blog
WordPress大学
WordPress大学
Simon Willison's Weblog
Simon Willison's Weblog
雷峰网
雷峰网
NISL@THU
NISL@THU
人人都是产品经理
人人都是产品经理
月光博客
月光博客
J
Java Code Geeks
V
Visual Studio Blog
S
Security Affairs
博客园 - Franky
T
Tailwind CSS Blog
Apple Machine Learning Research
Apple Machine Learning Research
H
Heimdal Security Blog
有赞技术团队
有赞技术团队
V2EX - 技术
V2EX - 技术
AWS News Blog
AWS News Blog
G
GRAHAM CLULEY
T
Troy Hunt's Blog
SecWiki News
SecWiki News
Spread Privacy
Spread Privacy
宝玉的分享
宝玉的分享
www.infosecurity-magazine.com
www.infosecurity-magazine.com
博客园 - 聂微东

DEV Community

Authentication Security Deep Dive: From Brute Force to Salted Hashing (With Java Examples) Why AI Systems Don’t Fail — They Drift Spilling beans for how i learn for exam😁"Reinforcement Learning Cheat Sheet" I Replaced Chrome with Safari for AI Browser Automation. Here's What Broke (and What Finally Worked) How Python Borrows Other People's Work The $40 Architecture: Processing 1 Billion API Requests with 99.99% Uptime Vibe Coding: A Workflow Guide (From Zero to SaaS) Most webhook security guides protect the wrong side. The scary part is delivery. Headless CMS for TanStack Start: Build a Blog with Cosmic EU Age Verification App "Hacked in 2 Minutes" — What Actually Happened Comfy Cloud’s delete function does not actually remove files Running AI Models on GPU Cloud Servers: A Beginner Guide Event-driven media intelligence with AWS Step Functions and Bedrock I scored 500 AI prompts across 8 quality dimensions — here's what broke How to Call Google Gemini API from Next.js (Free Tier, No Backend Needed) The Portal Protocol: Reclaiming Human Connection in the Age of AI How to Fix Your Team's Scattered Knowledge Problem With a Self-Hosted Forum Intro to tc Cloud Functors: A Graph-First Mental Model for the Modern Cloud Designing Multi-Tenant Backends With Both Ownership and Team Access I Built a Neumorphic CSS Library with 77+ Components — Here's What I Learned PostgreSQL Performance Optimization: Why Connection Pooling Is Critical at Scale Cómo construí un SaaS multi-rubro para gestionar expensas en Argentina con FastAPI + Vue 3 🚀 I Built an Ethical Hacking Scanner Tool – Open Source Project I Replaced /usage and /context in Claude Code With a Single Statusline A Pythonic Way to Handle Emails (IMAP/SMTP) with Auto-Discovery and AI-Ready Design I Collected 8.9 Million Polymarket Price Points — Here's What I Found About How Markets Really Move EcoTrack AI — Carbon Footprint Tracker & Dashboard Everyone's Using AI. No One Agrees How. 5 self-hosted ebook managers worth trying in 2026 Building Your First AI Agent with LangChain: From Chatbot to Autonomous Assistant Common SOC 2 Failures (Real World) Stop Vibe-Checking Your AI App: A Practical Guide to Evals How to Use SonarQube and SonarScanner Locally to Level Up Your Code Quality Your Next To-Do App Is Dead — I Replaced Mine with an OpenClaw AI Sign a Nostr event in 60 lines of Python using coincurve — no nostr-sdk, no nbxplorer, no rust toolchain ITGC Audit Explained Like You’re in Big 4 Patch Tuesday abril 2026: Microsoft parcha 163 vulnerabilidades y un zero-day en SharePoint Stop scraping everything: a better way to track competitor price changes Listing on MCPize + the Official MCP Registry while routing payments OUTSIDE the marketplace — how I kept 100% of my x402 revenue Building an AI-Powered Risk Intelligence System Using Serverless Architecture Why We Ripped Function Overloading Out of Our AI Toolchain Testing AI-Generated Code: How to Actually Know If It Works SaaS Churn Is Killing Your Business. Here Is What to Do About It (Without a Support Team) The Speed of AI Is No Longer Linear - And Self-Improving Models Are Why How to Implement RBAC for MCP Tools: A Practical Guide for Engineering Teams From Standard Quote to Persuasive Proposal: AI Automation for Arborists I built a CLI that scaffolds complete multi-tenant SaaS apps Axios CVE-2025–62718: The Silent SSRF Bug That Could Be Hiding in Your Node.js App Right Now The dashboard that ended our friendship Data Pipelines Explained Simply (and How to Build Them with Python) The Hidden Cost of AI Systems Nobody Talks About. undefined vs undeclared, and how typeof behaves Switching from file-based jobs to NATS/Kafka in Rust without changing code io_uring Adventures: Rust Servers That Love Syscalls Why Agentic AI is Killing the Traditional Database The POUR principles of web accessibility for developers and designers Quantum Neural Network 3D — A Deep Dive into Interactive WebGL Visualization How To Install Caveman In Codex On macOS And Windows Automation Pipeline Reliability: Why Your Workflow Breaks When Nobody Is Watching I Built an 'Open World' AI Coding Agent — It Works From ANY Folder From Freelancing to Product: A Tech Service Company's SaaS Transformation China's AI Giants: Adding Tencent Hunyuan & ByteDance Doubao to AI University (74 Providers) On the Vibe Coders and Their Lies clerk: Auto-Summarize Your Claude Code Sessions AI Weekly — 2026/04/10–04/17 | The Model Lockdown Is Here, but the Toolchain Is the Real Battleground AI 週報 — 2026/04/10–2026/04/17 模型封鎖潮來了,但工具鏈才是真戰場 Maybe this is how Open-Source apps are born... 🚀 Fine-Tune LLMs with LoRA and QLoRA: 2026 Guide tRPC v11 + Next.js App Router: End-to-End Type Safety Without the Boilerplate ShadCN UI in 2026: Why I Stopped Installing Component Libraries and Started Owning My Components SaaS Billing in React Server Components: Stripe + Supabase Without a Single `useEffect` Join our DEV Weekend Challenge — $1,000 in Prizes Across TEN winners! Submissions Due April 20 at 6:59 AM UTC. Implementing FSRS Spaced Repetition in Flutter + Supabase — Adding Memory Science to an AI Learning App "I Texted My Localhost From the Train — Claude Code Fixed the Bug Before I Got Home" I Built a Sales Prep AI and It Went Deeper Than Expected Design to Code #2: One JSON, Eleven Outputs Solving the 100M-Row Problem: A Summary Table Pattern for High-Volume Push Notification Logs Flutter Web With Wasm: What Actually Changes For Developers I Built 50 Royalty-Free Soundtracks for My Side Project in a Weekend Using AI Music Generation The Vibe Coding Security Checklist: 7 Things to Check Before You Ship Stop Letting Googlebot Guess Fix Your React App's SEO Right Desconstruindo o Streaming do LinkedIn: Como Criar um Engine de Extração de Vídeo de Alta Performance com HLS e FFmpeg (EDA Part-1) EDA (Exploratory Data Analysis) Explained With Real Life — Why Looking at Your Data Is the Most Important Step in Machine Learning Brand Relationship Management at Scale: Our 4-Touch Outreach System for 200+ Brands Why String.fromEnvironment() Might Return an Empty String in Dart JGuardrails 1.0.0 — Hardening Java LLM Apps Against Jailbreaks, Toxicity, and Prompt Injection Plan and Schedule a Full Week of Threads Content From One Claude Conversation Coding Cat Oran Ep3, Five Tables Changed Everything Updated: BFF Pattern I'm done watching freelancers get buried by 200 proposals. So I'm building the alternative. This is my first post BFS Algorithm in Java Step by Step Tutorial with Examples Tracking LLM Pricing Monthly: An Open Dataset for 22 AI Models How We Measure Content ROI on a Comparison Site: Revenue Attribution Without Perfect Data Introducing Nova AI Ops: The AI-Native Operating System for SRE Teams I built a free desktop video downloader for Windows — Grabbit How Talkie OCR Helps Vision-Impaired & Dyslexic Users Read the World Around Them VRCFaceTracking安装和iPhone面捕配置教程,有bug Even CrowdStrike Can't See Your Agents The Automation Gold Rush: What n8n Workflows and Claude Are Opening Up for Developers Right Now
How I Use Claude to Build Full-Stack Apps in Under 4 Hours — The Complete Workflow
Suifeng023 · 2026-05-12 · via DEV Community

Three months ago, I spent 3 weeks building a SaaS dashboard. Last week, I built a more complex one in 3 hours and 42 minutes — using Claude as my co-pilot.

The difference wasn't just "using AI." It was a specific, repeatable workflow that eliminates the bottlenecks most developers hit when coding with AI.

Here's exactly how I do it — step by step, with real prompts.

The Problem: Most People Use AI Wrong

I see developers making the same mistakes:

  • ❌ Pasting entire codebases into Claude and hoping for the best
  • ❌ Using vague prompts like "build me a dashboard"
  • ❌ Not breaking down the problem before asking AI
  • ❌ Copy-pasting AI output without understanding it
  • ❌ Not using AI for the things it's actually best at

The secret? AI is a junior developer that never sleeps, never gets bored, and has read every Stack Overflow answer ever written. But like any junior dev, it needs clear direction.

My 4-Hour Framework

I divide every project into 4 phases of ~1 hour each:

Phase Time What AI Does What I Do
1. Blueprint 60 min Generates architecture, tech choices Define requirements, review plan
2. Scaffold 60 min Generates boilerplate, database schema Set up repos, configure env
3. Build 60 min Writes core feature code Review, test, iterate
4. Polish 45 min CSS, error handling, edge cases Final review, deploy

Let me walk through each phase.


Phase 1: Blueprint (60 Minutes)

Before writing a single line of code, I spend an hour planning with Claude. This is the most important phase and the one most people skip.

Step 1: Define the Problem

I start with a clear, structured prompt:

I'm building a SaaS product. Here's what I need:

Product: A subscription analytics dashboard
Users: SaaS founders who want to track MRR, churn, and LTV
Data Source: Stripe API
Tech Stack: Next.js 14 (App Router), TypeScript, Prisma, PostgreSQL, TailwindCSS
Timeline: Need a working prototype today

Give me:
1. A complete database schema with all relationships
2. API route structure (REST endpoints)
3. Component hierarchy (what pages/components I need)
4. The order I should build things in (dependency graph)
5. Potential gotchas I might hit

Enter fullscreen mode Exit fullscreen mode

Why this works: Claude generates a concrete plan. No more "I'll figure it out as I go." You get a roadmap.

Step 2: Generate the Database Schema

Then I drill into each part:

Based on the schema you generated, write:
1. Complete Prisma schema with all models, relations, and indexes
2. Seed data (at least 20 records per model) that looks realistic
3. Migration SQL if needed

Format as a single `schema.prisma` file I can copy directly.

Enter fullscreen mode Exit fullscreen mode

Step 3: API Contract

For each API route, give me:
1. The endpoint path and HTTP method
2. Request body/params type (TypeScript interface)
3. Response type (TypeScript interface)
4. Authentication requirement
5. Brief description of what it does

Format as a TypeScript file with all types exported.

Enter fullscreen mode Exit fullscreen mode

Phase 1 output: You now have a complete spec — database schema, API types, component list, and build order. This would take 2-3 days to produce manually.


Phase 2: Scaffold (60 Minutes)

Now let AI generate all the boring stuff.

Generate Project Structure

Set up a Next.js 14 project with:
- App Router (not Pages Router)
- TypeScript strict mode
- TailwindCSS with these custom colors: [your palette]
- Prisma with PostgreSQL
- NextAuth.js for authentication (GitHub + email)
- shadcn/ui component library

Give me the exact commands to run and the folder structure.

Enter fullscreen mode Exit fullscreen mode

Generate Type Definitions

Create a complete `types/index.ts` file that includes:
- All database model types (from our schema)
- All API request/response types
- All component prop types
- Utility types (pagination, API response wrapper, etc.)

Make it fully typed. No `any` allowed.

Enter fullscreen mode Exit fullscreen mode

Generate Utility Functions

Write these utility functions:
1. `apiResponse<T>(data, status, message)`  standardized API response
2. `validateRequest<T>(schema, body)`  Zod validation wrapper
3. `paginate(query, page, limit)`  cursor-based pagination
4. `formatCurrency(amount, currency)`  i18n currency formatting
5. `calculateMRR(subscriptions)`  Monthly Recurring Revenue calc
6. `calculateChurn(subscriptions, period)`  Churn rate calc

Each function should be production-ready with proper error handling.

Enter fullscreen mode Exit fullscreen mode

Phase 2 output: A complete project skeleton with types, utils, auth, and database — ready to build features on top of.


Phase 3: Build (60 Minutes)

This is where the magic happens. I build features one at a time, using a specific prompt pattern.

The Feature Prompt Pattern

For every feature, I use this template:

Build me the [FEATURE NAME] feature.

Context:
- Tech stack: Next.js 14, TypeScript, Prisma, TailwindCSS, shadcn/ui
- Database schema: [paste relevant models]
- API types: [paste relevant types]

Requirements:
1. [Specific requirement 1]
2. [Specific requirement 2]
3. [Specific requirement 3]

Give me:
1. The API route code (app/api/...)
2. The React component code
3. Any Prisma queries needed
4. Test cases for edge cases

Important rules:
- Use Server Components by default, Client Components only when needed
- Handle loading states and errors
- Use optimistic updates where appropriate

Enter fullscreen mode Exit fullscreen mode

Example: Building the Dashboard Page

Build me the main dashboard page.

It should show:
1. Revenue chart (line chart, last 12 months)  use Recharts
2. Current MRR card with % change from last month
3. Active subscribers count
4. Churn rate card
5. Top 5 plans by revenue (horizontal bar chart)
6. Recent transactions table (last 10, with pagination)

Layout:
- Top row: 3 stat cards
- Middle row: Revenue chart (takes 2/3) + top plans (takes 1/3)
- Bottom: Recent transactions table

Style: Clean, minimal, white background with subtle shadows.
Use shadcn/ui Card components for everything.

Enter fullscreen mode Exit fullscreen mode

The Key Rule: One Feature at a Time

I never ask Claude to "build the whole app." I ask it to build one feature with full context. Then I test it, commit it, and move on.

This is the biggest productivity secret:

  • Narrow, deep prompts = high-quality, working code
  • Broad, shallow prompts = generic, broken code

Example: Building the Stripe Webhook Handler

Write a Stripe webhook handler for Next.js 14 App Router.

Events to handle:
1. checkout.session.completed  activate subscription
2. customer.subscription.updated  update subscription status
3. customer.subscription.deleted  cancel subscription
4. invoice.payment_failed  mark as past due

Requirements:
- Verify the Stripe webhook signature
- Use Prisma transactions for data updates
- Return 200 for all events (even unhandled ones)
- Log unhandled events for monitoring

Give me the complete route.ts file.

Enter fullscreen mode Exit fullscreen mode


Phase 4: Polish (45 Minutes)

The last phase is where good apps become great.

Error Handling

Review this code and add comprehensive error handling:
[paste code]

For each function, add:
1. Input validation (Zod)
2. Try/catch with specific error types
3. User-friendly error messages
4. Proper HTTP status codes
5. Logging for debugging

Enter fullscreen mode Exit fullscreen mode

Loading States

Add loading states to all components:
1. Skeleton loaders for data-fetching components
2. Button disabled states during mutations
3. Toast notifications for success/error
4. Optimistic updates for mutations

Enter fullscreen mode Exit fullscreen mode

Edge Cases

What edge cases should I handle for [FEATURE]?
List them all and write the code for each one.

Enter fullscreen mode Exit fullscreen mode

Accessibility

Review this component for accessibility:
[paste component]

Fix any issues with:
- ARIA labels
- Keyboard navigation
- Screen reader support
- Focus management
- Color contrast

Enter fullscreen mode Exit fullscreen mode


The Prompt Engineering Principles

After 50+ projects with Claude, here are the principles that make the biggest difference:

1. Context Is King

❌ "Build me a login page"
✅ "Build a login page using NextAuth.js credentials provider. 
    The database uses Prisma with an Adapter. 
    Email verification is required. 
    Rate limit to 5 attempts per minute.
    Redirect to /dashboard on success, show error on /login?error=failed."

Enter fullscreen mode Exit fullscreen mode

2. Show, Don't Tell

❌ "Make it look nice"
✅ "Style it like Linear.app's interface — clean, 
    lots of whitespace, monospace fonts for data, 
    subtle hover states, no borders on cards (use shadows instead)."

Enter fullscreen mode Exit fullscreen mode

3. Ask for Tests

❌ "Build the function"
✅ "Build the function and write 10 test cases 
    covering: happy path, empty input, invalid types, 
    boundary values, concurrent access, and error states."

Enter fullscreen mode Exit fullscreen mode

4. Iterate, Don't Regenerate

Instead of asking Claude to rewrite from scratch:

❌ "This doesn't work, try again"
✅ "The chart renders but the tooltips are showing 
    undefined values. I think the issue is in the 
    CustomTooltip component on line 42. 
    The data shape is: { month: string, revenue: number }.
    Fix the tooltip to display formatted currency."

Enter fullscreen mode Exit fullscreen mode


Real Results: Before vs After

Metric Before Claude Workflow After Claude Workflow
Time to prototype 2-3 weeks 3-4 hours
Lines of code / hour ~50 ~200 (reviewed)
Bugs in first version 15-20 3-5
Time spent debugging 40% of dev time 10% of dev time
Features per sprint 3-5 8-12

What AI Can't Do (Yet)

Let me be honest about limitations:

  • Architecture decisions — AI can suggest, but you need to evaluate trade-offs
  • Business logic understanding — AI doesn't know your domain
  • Code review — You must understand what AI generates
  • Production debugging — Complex, multi-system issues still need human reasoning
  • Security — Always review AI-generated auth and data handling code

The Bottom Line

Using Claude effectively isn't about replacing developers. It's about removing the 80% of work that's repetitive, well-documented, and formulaic — so you can spend your time on the 20% that requires real engineering judgment.

The 4-hour framework works because it mirrors how senior engineers already think: plan first, build systematically, polish last. Claude just makes each phase 5-10x faster.

Try it on your next project. Time yourself. I'd love to hear your results.


Have you used AI to accelerate your development workflow? What worked and what didn't? Drop a comment below! 👇