Updated Kiro Steering Docs

.kiro/steering/product.md

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+# Product Overview
+
+## Shopify Price Updater
+
+A Node.js command-line tool for bulk updating Shopify product prices based on product tags using Shopify's GraphQL Admin API.
+
+### Core Features
+
+- **Tag-based filtering**: Updates prices only for products with specific tags
+- **Dual operation modes**:
+  - `update`: Adjusts prices by percentage and sets compare-at prices
+  - `rollback`: Reverts prices using compare-at price values
+- **Batch processing**: Handles large inventories with automatic pagination
+- **Error resilience**: Continues processing with comprehensive error handling
+- **Rate limit handling**: Automatic retry logic with exponential backoff
+- **Progress tracking**: Detailed logging to console and Progress.md file
+
+### Target Users
+
+- Shopify store owners managing promotional pricing
+- E-commerce teams running seasonal sales campaigns
+- Developers automating price management workflows
+
+### Key Value Propositions
+
+- Reduces manual price update effort from hours to minutes
+- Provides rollback capability for promotional campaigns
+- Maintains data integrity with validation and error handling
+- Offers detailed audit trails through comprehensive logging

.kiro/steering/structure.md

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+# Project Structure
+
+## Directory Organization
+
+```
+shopify-price-updater/
+├── src/                      # Main application source code
+│   ├── config/               # Configuration management
+│   │   └── environment.js    # Environment variable validation & loading
+│   ├── services/             # Business logic services
+│   │   ├── shopify.js        # Shopify API client & GraphQL operations
+│   │   ├── product.js        # Product operations & price calculations
+│   │   └── progress.js       # Progress tracking & logging service
+│   ├── utils/                # Utility functions
+│   │   ├── price.js          # Price calculation & validation utilities
+│   │   └── logger.js         # Logging utilities & formatters
+│   └── index.js              # Main application entry point
+├── tests/                    # Test suites
+│   ├── config/               # Configuration tests
+│   ├── services/             # Service layer tests
+│   ├── utils/                # Utility function tests
+│   ├── integration/          # Integration tests
+│   └── index.test.js         # Main application tests
+├── backend/                  # Separate backend component (minimal)
+│   └── .env                  # Backend-specific environment config
+├── .env                      # Main environment configuration
+├── .env.example              # Environment template
+├── Progress.md               # Generated operation logs
+├── debug-tags.js             # Standalone tag analysis script
+└── test-*.js                 # Individual test scripts
+```
+
+## Code Organization Patterns
+
+### Service Layer Structure
+
+- **ShopifyService**: API client, authentication, retry logic
+- **ProductService**: Product fetching, validation, price updates
+- **ProgressService**: Logging, progress tracking, file operations
+
+### Configuration Management
+
+- Centralized in `src/config/environment.js`
+- Validation at startup with clear error messages
+- Environment-specific defaults and overrides
+
+### Error Handling Strategy
+
+- Service-level error categorization (rate limits, network, validation)
+- Comprehensive retry logic with exponential backoff
+- Detailed error logging with context preservation
+
+### Testing Structure
+
+- Unit tests for utilities and individual services
+- Integration tests for complete workflows
+- Mock-based testing for external API dependencies
+- Separate test files for different operation modes
+
+## File Naming Conventions
+
+- **Services**: `[domain].js` (e.g., `shopify.js`, `product.js`)
+- **Utilities**: `[function].js` (e.g., `price.js`, `logger.js`)
+- **Tests**: `[module].test.js` or `test-[feature].js`
+- **Configuration**: Descriptive names (e.g., `environment.js`)
+
+## Entry Points
+
+- **Main Application**: `src/index.js` - Complete price update workflow
+- **Debug Tools**: `debug-tags.js` - Tag analysis and troubleshooting
+- **Test Scripts**: `test-*.js` - Individual feature testing

.kiro/steering/tech.md

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+# Technology Stack
+
+## Runtime & Dependencies
+
+- **Node.js**: >=16.0.0 (specified in package.json engines)
+- **Core Dependencies**:
+  - `@shopify/shopify-api`: ^7.7.0 - Shopify GraphQL API client
+  - `dotenv`: ^16.3.1 - Environment variable management
+  - `node-fetch`: ^3.3.2 - HTTP client for API requests
+- **Development Dependencies**:
+  - `jest`: ^29.7.0 - Testing framework
+
+## Architecture Patterns
+
+- **Service Layer Architecture**: Separation of concerns with dedicated services
+- **Configuration Management**: Centralized environment-based configuration
+- **Error Handling**: Comprehensive retry logic with exponential backoff
+- **Logging Strategy**: Dual output (console + Progress.md file)
+
+## API Integration
+
+- **Shopify GraphQL Admin API**: Version 2024-01
+- **Authentication**: Private App access tokens
+- **Rate Limiting**: Built-in handling with automatic retries
+- **Bulk Operations**: Uses `productVariantsBulkUpdate` mutation
+
+## Common Commands
+
+### Development
+
+```bash
+npm install                    # Install dependencies
+npm start                     # Run with default settings
+npm run update                # Explicit update mode
+npm run rollback              # Rollback mode
+npm run debug-tags            # Debug tag analysis
+npm test                      # Run test suite
+```
+
+### Environment Setup
+
+```bash
+copy .env.example .env        # Create environment file (Windows)
+cp .env.example .env          # Create environment file (Unix)
+```
+
+### Testing & Debugging
+
+```bash
+npm run debug-tags            # Analyze store tags before running
+npm test                      # Run Jest test suite
+```
+
+## Environment Variables
+
+Required variables (see .env.example):
+
+- `SHOPIFY_SHOP_DOMAIN`: Store domain
+- `SHOPIFY_ACCESS_TOKEN`: Admin API token
+- `TARGET_TAG`: Product tag filter
+- `PRICE_ADJUSTMENT_PERCENTAGE`: Adjustment percentage
+- `OPERATION_MODE`: "update" or "rollback"