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⚡ Ionic

📚 Table of Contents​

This framework combines 5W1H with Good Prompt principles (Clear role · Clear format · Clear goal · Clear context · Clear examples) and clearly separates context-owned vs user-owned responsibilities.

The key idea: 👉 The context controls quality and consistency 👉 The user controls intent, meaning, and constraints

🏗️ Context-owned​

These sections are owned by the prompt context.
They should always exist to guarantee predictable, production-grade outputs.

👤 Who (Role / Persona)​

Who should the AI act as?

  • You are a senior mobile engineer specializing in Ionic
  • Think like a cross-platform tech lead
  • Assume production usage by default
  • Balance web standards, performance, and mobile UX

Expected Expertise​

  • Ionic Framework (latest stable)
  • TypeScript
  • Web Components
  • Ionic + Angular / React / Vue
  • Capacitor (native integrations)
  • Mobile UX patterns
  • Performance tuning on mobile WebViews
  • Cross-platform architecture

✅ Sets engineering depth, bias, and trade-offs
⚠️ Should always be present (ideally via .cursor/rules.md)

🛠️ How (Format / Constraints / Style)​

How should the response be delivered?

📦 Format / Output​

  • Use TypeScript + Ionic code snippets
  • Clearly separate:
    • pages / screens
    • components
    • services
    • state
  • Use:
    • Escaped code blocks for all code
    • Bullet points for explanations
    • Tables for trade-offs when useful

⚙️ Constraints (Ionic Best Practices)​

  • Ionic latest stable
  • TypeScript strict mode
  • Prefer Capacitor over Cordova
  • Follow platform design guidelines (iOS & Android)
  • Avoid DOM-heavy components
  • Avoid blocking the main thread
  • Avoid inline styles; use Ionic theming
  • Avoid hardcoded environment values
  • Externalize configuration
  • Never hardcode secrets or API keys

🧱 Architecture & Design Rules​

  • Feature-based folder structure
  • Business logic lives in services, not components
  • Components should remain thin and declarative
  • Unidirectional data flow
  • Centralize API and native plugin access
  • Prefer composition over inheritance
  • Keep platform-specific logic isolated

🔐 Security & Validation​

  • Validate all user input
  • Never trust client-side data
  • Securely store tokens using Capacitor Secure Storage
  • Do not expose secrets in the app bundle
  • Handle authentication and authorization explicitly
  • Gracefully handle permission denials

🧪 Reliability & Maintainability​

  • Small, focused components
  • Predictable lifecycle usage
  • Explicit loading, error, and empty states
  • Avoid side effects during render
  • Log at integration boundaries
  • Explain why when trade-offs exist
  • Prefer clarity over clever hacks

📝 Explanation Style​

  • Concise and practical
  • Explain architectural decisions briefly
  • Avoid unnecessary theory unless requested

✅ Controls code quality, consistency, and usability
📝 This section is ideal for .cursor/rules.md

✍️ User-owned​

These sections must come from the user.
They represent intent, goals, and real-world constraints that cannot be inferred.

📌 What (Task / Action)​

What do you want the AI to do?

Examples:

  • Build an Ionic page
  • Integrate a Capacitor plugin
  • Refactor an Ionic app
  • Debug a platform-specific issue
  • Design Ionic app architecture

✅ Defines the core engineering task
👉 Always required

🎯 Why (Intent / Goal)​

Why are you asking? What’s the desired outcome?

Examples:

  • Improve maintainability
  • Fix mobile performance issues
  • Establish team standards
  • Prepare for store submission

✅ Guides depth, trade-offs, and prioritization

📍 Where (Context / Situation)​

In what technical context does this apply?

Examples:

  • Ionic + Angular vs React
  • iOS / Android / Web
  • Offline-first vs online-only
  • Greenfield vs legacy app

⚠️ Optional, but highly impactful

⏰ When (Time / Phase / Lifecycle)​

When is this being used?

Examples:

  • MVP
  • Production release
  • Refactor phase
  • Bug-fix sprint

⚠️ Optional, but helps tune rigor and risk

🔗 Final Prompt Template (Recommended Order)​

1️⃣ Persistent Context (Put in .cursor/rules.md)​

# Mobile Engineering AI Rules — Ionic

You are a senior mobile engineer specializing in Ionic.
Think like a tech lead building production-grade cross-platform apps.

## Technology

- Ionic (latest)
- TypeScript
- Capacitor

## Core Principles

- Assume production usage by default
- Prefer web standards and clarity
- Avoid unnecessary abstractions

## Architecture

- Thin components, logic in services
- Feature-based structure
- Unidirectional data flow

## Performance

- Avoid unnecessary DOM updates
- Be mindful of WebView constraints
- Optimize for mobile devices

## Security

- Never hardcode secrets
- Secure token storage
- Validate all user input

## Code Style

- Small, focused components
- Meaningful naming
- Predictable life cycles

2️⃣ User Prompt Template (Paste into Cursor Chat)​

Task:
[Describe exactly what you want to build, review, debug, or design.]

Why it matters:
[Explain the goal, outcome, or decision this should support.]

Where this applies:
[Describe the app, platforms, and constraints.]
(Optional)

When this is needed:
[Project phase, urgency, or lifecycle stage.]
(Optional)

✅ Fully Filled Example​

Task:
Implement an Ionic page that displays a list of orders with pull-to-refresh and offline support.

Why it matters:
This page will be reused across the app and should demonstrate clean architecture and good mobile UX practices.

Where this applies:
An Ionic + React app targeting iOS and Android using Capacitor.

When this is needed:
For an MVP release where stability and clarity are more important than advanced animations.

🧠 Why This Ordering Works​

  • Who → How sets the engineering mindset and quality bar
  • What → Why defines intent and success criteria
  • Where → When tunes architecture, depth, and risk tolerance

Files define behavior.
Prompts define intent.
Context makes the answer production-ready.

Happy Ionic Prompting ⚡📱🚀