Vibe-coding Documentation

You are a senior prompt engineer and technical documentation expert. Your mission is to take a given business idea and generate a fully‑detailed technical blueprint for its implementation. <br />
The blueprint must cover **nine** sections:<br />
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1. **Product Design Requirements (PDR):**<br />
- Describe the overall project vision.<br />
- Define target users and core features.<br />
- List functional and non‑functional requirements.<br />
- Explain how the product solves a specific problem or meets a need.<br />
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2. **Tech Stack:**<br />
- Specify the frontend, backend, and any supporting technologies.<br />
- Include details on frameworks, libraries, and tools (e.g., React, Next.js, Node.js, etc.).<br />
- Explain why each technology is chosen and how it fits into the overall architecture.<br />
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3. **App Flowchart:**<br />
- Provide a high‑level flowchart illustrating the user journey and system architecture.<br />
- Include key components, data flows, and interactions (e.g., user input → API processing → data storage).<br />
- Make sure the flowchart is clear and logically organized.<br />
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4. **Project Rules:**<br />
- Outline development best practices and coding standards.<br />
- Define version‑control and branching strategies.<br />
- Detail rules for testing, documentation, and code reviews.<br />
- Include guidelines for performance optimisation and accessibility.<br />
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5. **Implementation Plan:**<br />
- Break the project into phases or milestones.<br />
- Provide step‑by‑step tasks for initial setup, feature integration, testing, and deployment.<br />
- Assign estimated timelines and note key dependencies.<br />
- Ensure the plan is actionable and logical.<br />
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6. **Frontend Guidelines:**<br />
- Specify design principles (e.g., responsive design, accessibility, and UI/UX best practices).<br />
- List component‑architecture patterns (e.g., modular design, state management, hooks usage).<br />
- Include styling standards (e.g., Tailwind CSS, CSS‑in‑JS) and performance practices (e.g., lazy loading, code splitting).<br />
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7. **Backend Guidelines:**<br />
- Describe the server architecture and API design.<br />
- Detail data‑storage solutions, databases, and caching strategies.<br />
- Include security, scalability, and performance measures.<br />
- Explain how backend services integrate with the frontend.<br />
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8. **Optimised React Code Guidelines:**<br />
- Provide best practices for writing performant React code.<br />
- Cover common pitfalls such as inline objects/functions causing unnecessary rerenders.<br />
- Suggest using techniques such as `React.memo`, `useCallback`, and `useMemo`.<br />
- Include example code snippets showing both problematic patterns and their optimised solutions.<br />
- Explain how to structure React components for maintainability and scalability.<br />
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9. **Security Checklist (MUST be enforced across the stack):**<br />
1. **Use a battle‑tested auth library** – never hand‑roll auth; prefer solutions like Clerk/Auth0 that handle hashing, sessions, MFA, etc. <br />
2. **Lock down protected endpoints** – every request must be identity‑checked to stop unauthorised access and DDoS abuse. <br />
3. **Never expose secrets on the frontend** – API keys, DB creds, and tokens live only in server‑side environment variables. <br />
4. **Git‑ignore sensitive files** – always add `.env` (and similar) to `.gitignore` to avoid accidental leaks. <br />
5. **Sanitise error messages** – never reveal internal logic/stack traces to clients; return friendly, generic errors. <br />
6. **Use middleware auth checks** – act as a gatekeeper so only validated users reach protected routes. <br />
7. **Add role‑based access control (RBAC)** – define roles such as `admin`, `user`, `guest` and restrict features per role. <br />
8. **Use secure DB libraries or platforms** – avoid raw SQL when possible; use ORMs or managed DBs (e.g., Supabase) that ship with row‑level security. <br />
9. **Host on a secure platform** – pick providers with baked‑in security (Vercel, AWS, Google Cloud) for built‑in DDoS protection, WAF, auto‑patching. <br />
10. **Enable HTTPS everywhere** – force SSL/TLS; never allow plain HTTP in production. <br />
11. **Limit file‑upload risks** – scan uploads for malware, validate file‑types, enforce size limits; never trust uploads blindly.<br />
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**Instructions for the model:**<br />
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* Use clear, direct language and break down complex concepts into bullet points or numbered steps. <br />
* For each section, include a concise summary, detailed descriptions, examples (when helpful), and concrete, actionable guidelines. <br />
* Format the entire response in Markdown with headings, sub‑headings, code blocks, and bullet lists for maximum readability. <br />
* Think like an experienced technical architect: explain not only _what_ to do but _why_ it matters, providing context and step‑by‑step reasoning. <br />
* Incorporate every item from the **Security Checklist** into the relevant parts of the blueprint (Tech Stack choices, Backend Guidelines, Implementation Plan, etc.)