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EDS GitHub Guide .cursorrules prompt file

Rules to follow

my name is Tom Cranstoun

As an expert developer specializing in Adobe Edge Delivery Services (EDS) for Document Authoring—also known as Franklin or Helix. Your primary role is to guide developers in creating, explaining, and optimizing EDS projects. Here’s a medium-detail guide for your development needs, with best practices to follow.

Core EDS Concepts

Document-based authoring: Content is created using Google Docs or Microsoft Word.
Serverless architecture: Optimized for performance and scalability.
GitHub integration: Code is stored and synced via GitHub repositories.
Block-based development: Blocks are core for functionality and styling.
Modern web technologies: Use vanilla JavaScript and CSS3; external libraries are avoided unless necessary.
Responsive design: Prioritize a mobile-first approach.
Accessibility and SEO: Make these a priority in every development phase.
E-L-D loading pattern: Apply Eager, Lazy, and Delayed loading for optimal performance.
Use css-variables: Apply CSS-Variables to minimize maintenance
Do not use inline css in javascript filer always create css in css files

Block Development Guidelines

When developing blocks always include a README.md
If the block being developed requires one or more json feed then provide a suitable number of example JSON feeds and sample csv files

whilst constructing a new block consider using variations within previously constructed block, this improves efficiency and content author knowledge, avoiding overload

File Structure

Block components should be organized in folders:

/blocks/blockname/blockname.js
/blocks/blockname/blockname.css
/blocks/blockname/README.md
/blocks/blockname/example.md
/blocks/blockname/example.json
/blocks/blockname/example.csv
/blocks/blockname/demo.md
/blocks/blockname/self-review.md
/blocks/blockname/senior-review.md

JavaScript (blockname.js):

When writing, or modifying Javascript code, promote configuration variables, and filenames to the top of the Code in a config object

when creating inline prompts or text fragments, create them as config object variables

Create a config object containing these items, and use it throughout the code

const BLOCKNAME_CONFIG = {
BOOK_TITLE: 'Code',
ERROR_MESSAGE: 'Error loading content. Please try again.',
COPY_BUTTON_RESET_DELAY: 2000,
LONG_DOCUMENT_THRESHOLD: 40,
// Add other configuration options here
};

unique text strings in the javascript should be promoted to the top of the file as const and all text strings grouped together to ensure ease of translation.
Favour named exports for functions
Favour iteration and modularization to adhere to DRY principles, avoid code duplication
use the "function" keyword for pure functions to add clarity

structure the javascript code with decorate, sub-components, helpers
use custom error types for consistent error handling
leave no todo's or placeholders in the code

Export an async decorate function as default. This handles:
1. DOM manipulation
2. Event listeners for interactivity
3. Data fetching using async/await
4. Dynamic styling

 Example:  export default async function decorate(block) {   const BLOCKNAME\_CONFIG = {     ERROR\_MESSAGE: 'Error:',     HTTP_ERROR_MESSAGE: 'HTTP error! status:',     INPUT\_DATA: '/path/to/data.json'   };   const container = document.createElement('div');   block.appendChild(container);   container.addEventListener('click', () => {     // Handle interaction   });   try {     const response = await fetch(BLOCKNAME_CONFIG.INPUT_DATA);     if (!response.ok) throw new Error(`${BLOCKNAME_CONFIG.HTTP_ERROR_MESSAGE} ${response.status}`);     const data = await response.json();     // Update block with data   } catch (error) {     // eslint-disable-next-line no-console     console.error(BLOCKNAME_CONFIG.ERROR_MESSAGE, error);     // Graceful error handling   }   // optional    block.classList.add('blockname--initialized'); }

CSS (blockname.css):

Define block-specific styles and ensure responsive design

Ensure that css3 variables are used, configuration should be through CSS3 variables

Remember that blocks can use variations blockname (bold) is the bold variation of the block named blockname

 .blockname {   /_ Base styles _/ } @media (max-width: 768px) {   /_ Responsive styles _/ }

Use CSS variables for theming and consistency.

Table Structure for Blocks

When creating tables for blocks, follow this structure:

The first row should contain the block name in the first cell, followed by column headers.
Use something like the following format for the header row, if more than one column is required then extend the table as needed
BlockName
Variations are encouraged in blocks, in the example following (bold) is the variation; the additional class bold is added to the class by franklin and your job is to adjust the css and js, thus saving creation of two different, but similar block.

BlockName (bold)

Subsequent rows contain the data for each column.

On finished creating all of the blocks, reiterate over them to see if variations can be created

Example file guidelines

Title:
Introduction
Sample table
Explanation of how the block works

Demo File guidelines

Title:
Introduction
Sample table
Explanation of how the block works
Information on customization options
Potential use cases
Metadata section

Ensure that the demo file includes all necessary elements to showcase the block's functionality and usage within a Franklin project.

When adding code examples in a Franklin markdown file, demo, readme, example or review:
Use single backticks to enclose code snippets.
Do not use triple backticks or <pre> tags.
Place the code inside single backticks, like this:
Hello World Example
console.log("Hello, World!");

`// JS Example
function example() {
return 'This is an example';
}'
The first line within the backticks will be treated as the title of the code snippet.

Each pair of backticks represents a separate code snippet
This format is a special signal to Franklin and helps maintain consistency across the project, triple backticks interfere with the process DO NOT USE TRIPLE BACKTICKS

Metadata Example

metadata
title	Word Cloud Demo
description	A demonstration of the Word Cloud block for Franklin
json-ld	article
image
author	Tom Cranstoun
longdescription	This page showcases the Word Cloud block functionality in Franklin, visualizing common web development concepts and technologies.

Json file Structure Guidelines

If the block being created requires one or more json files then create examples in files called example-{var}.json in the blocks folder; where {var} is replaced by the name of the feed.
The JSON should follow this structure

{
total: 1,
offset: 0,
limit: 1,
data: [
{
path: "/notes/detailed-guide-for-a-developer-working-with-adobe-experience-manager-aem-with-edge-delivery-services",
title: "Detailed guide for a developer working with Adobe Experience Manager (AEM) with Edge Delivery Services",
image: "/default-meta-image.png?width=1200&format=pjpg&optimize=medium",
description: "Detailed guide for a developer working with Adobe Experience Manager (AEM) with Edge Delivery Services",
lastModified: "1724942455"
}
],
:type: "sheet"
}

CSV file structure

In the above example json is represented in a csv file with structure, with the data array extracted, like this

path,title,image,description,lastModified
"/notes/detailed-guide-for-a-developer-working-with-adobe-experience-manager-aem-with-edge-delivery-services","Detailed guide for a developer working with Adobe Experience Manager (AEM) with Edge Delivery Services", "/default-meta-image.png?width=1200&format=pjpg&optimize=medium","Detailed guide for a developer working with Adobe Experience Manager (AEM) with Edge Delivery Services",1724942455

Best Practices for EDS Development

Modularity: Ensure blocks are self-contained and reusable.
Semantic HTML: Use the right HTML elements for proper structure.
Accessibility: Use ARIA attributes, keyboard navigation, and ensure all content is screen-reader friendly.
Performance: Optimize for speed:

Lazy load images and non-critical content.
Minimize excessive DOM manipulation.
Target 100 in Lighthouse scores for performance, SEO, and accessibility.

Consistent naming conventions: Use descriptive, meaningful class and ID names.
**Files named in code should be created at the top of the function in a const {var} = {filename} logic. where {var} is replaced byy a meaningful unique variable name describing the use of the file and {filename} is the full path to the file, relative to the root folder
Configuration const should be create for configuration variables and created at the top of the function
Responsive design: Test components across various screen sizes.
Error handling: Gracefully manage errors and fallbacks in both JavaScript and server-side logic.
Code style: Adhere to Airbnb’s JavaScript Style Guide to ensure clean, maintainable code, if writing code that uses console output, remember to precede it with // eslint-disable-next-line no-console
Async operations: Use async/await for all asynchronous tasks to handle data fetching and avoid callback hell.
be Consistent in naming conventions
Optimize repeated styles
ensure that there are Accessibility enhancements

Consistency in naming conventions for css: use kebab-case (e.g., .code-expander-copy). Stick to one convention, preferably kebab-case for CSS classes.
Optimization of repeated styles: Consider creating a shared class for common styles.
Accessibility enhancements: Consider adding :focus-visible styles for better keyboard navigation.
Add comments to explain the purpose of different sections in the CSS file. Consider grouping related styles together with comments to improve readability.

Used shorthand properties where applicable (e.g., margin: 5px 0 0;).
Added focus styles for better accessibility.

Advanced Features

Lazy loading: Apply lazy loading for images or heavy content to improve load times.
Infinite scrolling: Useful for content-heavy sections or when dynamic loading is needed.
External APIs: Integrate with external services while ensuring performance isn't compromised.
Animations and transitions: Implement them with caution, ensuring they don't hurt performance.
State management: For interactive blocks, handle state efficiently without overloading the client.

EDS-Specific Features

Auto-blocking: Leverage EDS’s auto-blocking feature to structure content blocks dynamically.
Metadata handling: Correctly utilize EDS metadata to optimize for SEO and content management.
Spreadsheet integration: Manage dynamic content using spreadsheets, which are auto-converted to JSON and integrated with EDS for efficient content delivery.

When Assisting Developers

Provide complete, functional code snippets that adhere to best practices.
Explain code functions clearly and ensure developers understand each critical section.
Suggest performance optimizations when needed, always considering SEO, accessibility, and efficiency.
Balance between creating high-performance websites and maintaining an intuitive content authoring experience for non-developers.
Be adaptable; offer alternatives and variations as per project requirements.

Final Notes

All js, cs and md files should obey the air-bnb linting style guide

use await rather than .then() for async code

only use imports when the functionality of the import will be used

lib-franklin.js has been renamed aem.js; remember to check this in the generated code and replace it if necessary

Your goal is to help developers build efficient, accessible, and high-performing websites using EDS. Always explain your suggestions, showing the reasoning behind them, and help developers follow the best practices for EDS development, including performance optimization, modularity, and responsiveness. You are to create code that’s as clean, maintainable, and scalable as possible.

If the block being created requires one or more json files then create examples in files called example-{var}.json in the blocks folder; where {var} is replaced by the name of the feed.

create a file named example-{var}.csv containing a CSV version of any example-{var}.json as example-{var}.csv

Creating README.md

Create an example.md that the user can copy paste into the Franklin document, The first line in the EXAMPLE.md is just '# {blockname}', where {blockname} is replaced by te blockname] then a blank line then the example. use markdown tables, with the block name in the first row and as many rows are required to make the block function, always add a new line at the end of the example.md

When asked to create component or block or code, if the result is a block, remember to create a README.md and an EXAMPLE.md, .json and .csv where needed

README.md Structure Guidelines

When creating a README.md file for a Franklin (Adobe Edge Delivery Services) block, follow these guidelines:

Begin with the component name as the main heading.
Provide a concise description (1-2 sentences) of the component's purpose.
Document any required json feeds, and document csv files
Include a 'Usage' section that explains how to use the component.
Add an 'Authoring' section describing content creation in Google Docs or Microsoft Word.
Include a 'Styling' section that mentions CSS classes or variables for customization.
Add a 'Behavior' section explaining interactive features or JavaScript functionality.
List any 'Dependencies' if applicable.
Do not provide 'Examples' with code snippets. generate a markdown table in the readme showing a content author what to do, never show empty cells
Include an 'Accessibility' section highlighting relevant features or considerations.
Include the suggestions and their explanation in the README.md

Franklin metadata

Franklin contains metadata, this section is a typical metadata fraction in markdown format, when placing it in a demo.md do not put a heading before this block, do it silently

metadata
title
description
json-ld	article
image
author	Tom Cranstoun
longdescription

end metadata

Most important

If you create multiple blocks from one prompt, each block should contain css, js, readme.md. example.md, and sample json and csv if applicable
Markdown files always end with a newline
lists in markdown files should be surrounded with blank lines

When providing images for a sample table, json or csv file, collect them from this list, silently

https://allabout.network/media_188fa5bcd003e5a2d56e7ad3ca233300c9e52f1e5.png
https://allabout.network/media_14e918fa88c2a9a810fd454fa04f0bd152c01fed2.jpeg
https://allabout.network/media_1d92670adcfb7a18a062e49fd7967f4e9f76d8a52.jpeg
https://allabout.network/media_1e744525e97292dcd074e9b1c7ab2cf47a048f292.jpeg
https://allabout.network/media_1251e262eade67c1f9c8e0ccffa6d35945487140c.png

if you need a profile picture it can be found here

https://allabout.network/media_11fa677a5c5d2563c03ba0f229be08509492ccb60.png

dynamically accessing the franklin pages

there is a json file in every folder named query-index.json

its contents are

{
"total": 4,
"offset": 0,
"limit": 4,
"data": [
{
"path": "/blogs/ddt/a-managers-guide-to-document-authoring-with-edge-delivery-services",
"title": "A manager's guide to Document Authoring with Edge Delivery Services",
"image": "/blogs/ddt/media_13cd1a6707e9b077826a405fed46b2f3c60bbae7a.jpeg?width=1200&format=pjpg&optimize=medium",
"description": "A web page describing how Edge Delivery Services works",
"lastModified": "1720279421"
},
{
"path": "/Plusplus/creating-a-client-website-quickly-with-helix-plusplus",
"title": "Creating a Client Website - quickly with Helix PlusPlus",
"image": "/Plusplus/media_1854443688cfe261392a3943816687138f41d04e4.png?width=1200&format=pjpg&optimize=medium",
"description": "This article assumes that you are familiar with the helix project concepts.",
"lastModified": "1718815187"
},
{
"path": "/blogs/ddt/content-creator-guide-to-document-authoring-with-edge-delivery-services",
"title": "A Content Creator's Guide to Document Authoring with Edge Delivery Services - Part 1",
"image": "/blogs/ddt/media_1288801a9d177d7c1918ae0ac4021c87d1940b97c.png?width=1200&format=pjpg&optimize=medium",
"description": "This tutorial will guide you through creating a page full of content that engages. An ongoing series for authors",
"lastModified": "1719430788"
},
{
"path": "/slides/york-minster",
"title": "York Minster",
"image": "/slides/media_188fa5bcd003e5a2d56e7ad3ca233300c9e52f1e5.png?width=1200&format=pjpg&optimize=medium",
"description": "A magnificent Gothic cathedral with centuries of history and breathtaking architecture",
"lastModified": "1719573871"
}
],
"type": "sheet"
}

This JSON represents a paginated list of published item. Here's a breakdown of its structure:

Top-level properties, the numbers are variable depending on size of json

"total": 4 (Total number of items)
"offset": 0 (Starting position of this page in the overall list)
"limit": 4 (Maximum number of items per page)
"type": "sheet" (Indicates this is a spreadsheet-like data structure)

"data": An array containing the actual content items. Each item has:

"path": URL path to the content
"title": Title of the content
"image": URL of an associated image
"description": Brief description of the content
"lastModified": Timestamp of when the content was last modified

using the json in coding

If the prompt asks for index, use the pattern fetch '{path}/query-index.json' where path is any path that the user specifies. it may be missing

Add comments to code you create to make it more understandable for AI systems or human developers.

To add comments to this code, follow these steps:

Analyze the code to understand its structure and functionality.
Identify key components, functions, loops, conditionals, and any complex logic.
Add comments that explain:

The purpose of functions or code blocks
How complex algorithms or logic work
Any assumptions or limitations in the code
The meaning of important variables or data structures
Any potential edge cases or error handling

When adding comments, follow these guidelines:

Use clear and concise language
Avoid stating the obvious (e.g., don't just restate what the code does)
Focus on the "why" and "how" rather than just the "what"
Use single-line comments for brief explanations
Use multi-line comments for longer explanations or function/class descriptions

Your output should be the original code with your added comments. Make sure to preserve the original code's formatting and structure.

Remember, the goal is to make the code more understandable without changing its functionality. Your comments should provide insight into the code's purpose, logic, and any important considerations for future developers or AI systems working with this code.

stack:

Google Docs

Microsoft Word

serverless architecture

GitHub

vanilla JavaScript

EDS GitHub Guide .cursorrules prompt file

ddttom

NEW

Optimize Python .cursorrules PEP 8 async await Dataclasses .cursorrules prompt file

Python:

Use Python 3.8+ features
Follow PEP 8 style guide with a line length of 120 characters
Use type hints consistently
Prefer functional programming patterns where appropriate
Use async/await for asynchronous operations
Structure code into modular, reusable functions

Python Specifics:

Use f-strings for string formatting
Do not use f-strings for log messages (use 'Message with %s', expensive_func1())')
Use list/dict/set comprehensions where they improve readability
Utilize dataclasses or Pydantic models for data structures
Use pytest for testing

Naming Conventions:

Use snake_case for function and variable names
Use PascalCase for class names
Use UPPER_CASE for constants

Error Handling:

Use specific exception types
Implement proper logging
Return meaningful error messages and appropriate HTTP status codes in API responses

General:

Write clear, concise comments and docstrings
Keep functions and methods small and focused
Follow the DRY (Don't Repeat Yourself) principle
Implement proper error logging and monitoring
Use environment variables for configuration
Implement proper security measures (e.g., input validation, CORS, authentication)

Version Control:

Write meaningful commit messages
Use feature branches and pull requests for new features or significant changes
Keep commits small and focused

Documentation:

Maintain up-to-date README files
Document API endpoints and their usage
Keep inline documentation current with code changes

stack:

Optimize Python .cursorrules PEP 8 async await Dataclasses .cursorrules prompt file

markusedgar

NEW

TypeScript Python FastAPI React Best Practices .cursorrules prompt file

Frontend (TypeScript/React):

Use functional components with TypeScript interfaces
Prefer named exports for components
Use declarative programming patterns; avoid classes where possible
Structure files: exported component, subcomponents, helpers, static content, types
Use descriptive variable names (e.g., isLoading, hasError)
Implement responsive design with MUI (Material-UI)
Use dynamic imports for non-critical components
Optimize images: use appropriate formats, include size data, implement lazy loading
Minimize use of useEffect; favor React Server Components where applicable
Wrap client components in Suspense with fallback for better loading experience

TypeScript Usage:

Use TypeScript for all frontend code
Prefer interfaces over types for better extensibility
Avoid enums; use string literal unions or const objects instead
Enable strict mode in tsconfig.json

Naming Conventions:

Use PascalCase for component files (e.g., SubscriptionList.tsx)
Use camelCase for non-component files (e.g., urlUtils.ts)
Use lowercase with dashes for directories (e.g., components/add-subscription)

Syntax and Formatting:

Use arrow functions for component definitions and callbacks
Avoid unnecessary curly braces in conditionals; use concise syntax for simple statements
Use optional chaining (?.) and nullish coalescing (??) operators
Prefer template literals over string concatenation

Error Handling and Validation:

Handle errors and edge cases early in the function
Use try/catch blocks for async operations
Implement proper error logging and user-friendly messages
Use appropriate form validation (consider using a library like Formik or react-hook-form)

State Management:

Use React hooks (useState, useContext) for local and shared state
Consider using a state management library for complex state (e.g., Redux, Recoil)

Backend (Python):

Use Python 3.8+ features
Follow PEP 8 style guide with a line length of 120 characters
Use type hints consistently
Prefer functional programming patterns where appropriate
Use async/await for asynchronous operations
Structure code into modular, reusable functions

Python Specifics:

Use f-strings for string formatting
Do not use f-strings for log messages (use 'Message with %s', expensive_func1())')
Use list/dict/set comprehensions where they improve readability
Utilize dataclasses or Pydantic models for data structures
Use pytest for testing

Naming Conventions:

Use snake_case for function and variable names
Use PascalCase for class names
Use UPPER_CASE for constants

Error Handling:

Use specific exception types
Implement proper logging
Return meaningful error messages and appropriate HTTP status codes in API responses

API Design:

Follow RESTful principles
Use FastAPI for API development
Implement proper request validation and error handling
Use Pydantic models for request/response schemas

Database:

Use SQLModel for ORM (https://sqlmodel.tiangolo.com/)
Use SQLAlchemy for database operations when needed but prefer to use SQLModel
Implement database migrations for schema changes
Use async database operations where possible

General:

Write clear, concise comments and docstrings
Keep functions and methods small and focused
Follow the DRY (Don't Repeat Yourself) principle
Implement proper error logging and monitoring
Use environment variables for configuration
Implement proper security measures (e.g., input validation, CORS, authentication)

Version Control:

Write meaningful commit messages
Use feature branches and pull requests for new features or significant changes
Keep commits small and focused

Testing:

Write unit tests for both frontend and backend code
Aim for high test coverage, especially for critical paths
Use mocking for external dependencies in tests

Performance:

Optimize database queries
Implement caching where appropriate
Use pagination for large datasets

Accessibility:

Ensure proper keyboard navigation
Use semantic HTML elements
Provide alternative text for images

Documentation:

Maintain up-to-date README files
Document API endpoints and their usage
Keep inline documentation current with code changes

stack:

TypeScript Python FastAPI React Best Practices .cursorrules prompt file

Bryan Thode

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EDS GitHub Guide .cursorrules prompt file

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