Add user authentication with JWT tokens to the application

Install required authentication dependencies

Set up JWT token generation and validation

Installing required authentication dependencies

Create user model with password hashing

Creating user model with password hashing

Setting up JWT token generation and validation

Create authentication middleware

Implement login endpoint

Implement registration endpoint

Implement logout endpoint

Add password reset functionality

Write authentication tests

Update API documentation


Debug memory leak in the Node.js application

Take heap snapshots before and after operations

Analyze heap snapshots for retained objects

Reproduce the memory leak issue

Enable memory profiling tools

Taking heap snapshots before and after operations

Analyzing heap snapshots for retained objects

Identify source of memory retention

Fix identified memory leak

Verify fix with load testing

Add memory monitoring to production


Refactor monolithic controller into service layer architecture

Analyze current controller responsibilities

Identify distinct business logic domains

Move business logic from controller to services

Analyzing current controller responsibilities

Identifying distinct business logic domains

Design service layer interfaces

Create service layer classes

Moving business logic from controller to services

Update controller to use services

Add unit tests for services

Update integration tests

Refactor error handling

Document new architecture


Migrate database from PostgreSQL to MongoDB

Analyze current PostgreSQL schema
Map relational schema to document model
Design MongoDB document structures
Set up MongoDB development instance
Create MongoDB migration scripts
Implement data transformation logic
Test migration with sample data
Plan production migration strategy
Update application database layer
Execute production migration
Verify data integrity
Update backup and recovery procedures

Analyze current PostgreSQL schema

Map relational schema to document model

Mapping relational schema to document model

Design MongoDB document structures

Set up MongoDB development instance

Create MongoDB migration scripts

Implement data transformation logic

Test migration with sample data

Plan production migration strategy

Update application database layer

Execute production migration

Verify data integrity

Update backup and recovery procedures


Set up CI/CD pipeline with GitHub Actions

Analyze project build and deployment requirements

Analyzing project build and deployment requirements

Design CI/CD pipeline stages

Create GitHub Actions workflow file

Configure build steps

Set up automated testing

Configure code quality checks

Set up deployment environments

Configure deployment automation

Add environment variable management

Set up secrets management

Test pipeline with sample commit

Document pipeline usage

Set up pipeline monitoring and alerts

Setting up pipeline monitoring and alerts


Implement real-time chat feature with WebSocket

Research WebSocket libraries for the framework

Handle connection failures and reconnection

Researching WebSocket libraries for the framework

Install WebSocket dependencies

Design chat message data model

Create WebSocket connection handler

Implement message broadcasting logic

Create chat room management

Add user presence tracking

Implement message persistence

Create frontend WebSocket client

Add chat UI components

Handling connection failures and reconnection

Add typing indicators

Implement message read receipts

Write tests for WebSocket functionality

Writing tests for WebSocket functionality

Scale WebSocket infrastructure


Add comprehensive logging and monitoring system

Define logging requirements and levels
Choose logging framework
Design log format and structure
Implement structured logging
Add request/response logging middleware
Set up log aggregation service
Configure log retention policies
Implement error tracking
Add performance metrics collection
Create monitoring dashboards
Set up alerting rules
Test logging and monitoring system
Document logging best practices

Define logging requirements and levels

Defining logging requirements and levels

Choose logging framework

Design log format and structure

Implement structured logging

Add request/response logging middleware

Adding request/response logging middleware

Set up log aggregation service

Configure log retention policies

Implement error tracking

Add performance metrics collection

Create monitoring dashboards

Set up alerting rules

Test logging and monitoring system

Document logging best practices


Optimize slow database queries causing performance issues

Identify slow queries through monitoring

Monitor query performance post-deployment

Identifying slow queries through monitoring

Analyze query execution plans

Review database indexes

Identify missing or inefficient indexes

Identifying missing or inefficient indexes

Create appropriate indexes

Rewrite inefficient queries

Implement query result caching

Add database connection pooling

Test optimizations in staging

Measure performance improvements

Deploy optimizations to production

Monitoring query performance post-deployment


Implement feature flag system for gradual rollouts

Create admin interface for flag management

Research feature flagging solutions

Design feature flag data model

Choose feature flag management approach

Choosing feature flag management approach

Implement feature flag service

Creating admin interface for flag management

Integrate flag checks into application

Integrating flag checks into application

Add flag override capabilities

Implement user segmentation for flags

Implementing user segmentation for flags

Add analytics for flag usage

Document feature flag workflow

Train team on feature flag usage


Create comprehensive API documentation with OpenAPI spec

Define authentication and security schemes

Inventory all API endpoints

Document request/response schemas

Defining authentication and security schemes

Write endpoint descriptions

Create OpenAPI specification file

Set up API documentation viewer

Add code examples for each endpoint

Document error responses

Add rate limiting information

Generate interactive documentation

Set up automated documentation updates

Setting up automated documentation updates

Review documentation with stakeholders

Reviewing documentation with stakeholders


Implement automated testing strategy with 80% coverage

Configure CI pipeline for automated tests

Add mutation testing for quality assurance

Analyze current test coverage

Identify untested critical paths

Design testing strategy pyramid

Set up testing framework and tools

Write unit tests for business logic

Write integration tests for APIs

Write end-to-end tests for user flows

Set up test data fixtures

Configuring CI pipeline for automated tests

Implement coverage reporting

Adding mutation testing for quality assurance

Document testing guidelines

Train team on testing practices


Migrate frontend from JavaScript to TypeScript

Create type definitions for shared interfaces

Analyze current JavaScript codebase

Set up TypeScript configuration

Install TypeScript and type definitions

Installing TypeScript and type definitions

Creating type definitions for shared interfaces

Migrate utility functions first

Migrate components one by one

Update build pipeline for TypeScript

Fix type errors incrementally

Add strict type checking gradually

Update documentation for TypeScript

Train team on TypeScript best practices

Training team on TypeScript best practices


Implement multi-language internationalization (i18n)

Implement language detection and switching

Identify all user-facing text

Choose i18n library and framework

Create language resource files

Extract strings into translation keys

Extracting strings into translation keys

Implementing language detection and switching

Add date/time localization

Add currency and number formatting

Implement RTL language support

Create translation workflow

Set up automated translation updates

Setting up automated translation updates

Test all languages in UI

Document translation process


Debug intermittent API timeout errors in production

Identify affected endpoints and conditions

Review error logs and patterns

Identifying affected endpoints and conditions

Check database connection pool settings

Checking database connection pool settings

Analyze network latency and timeouts

Review external API calls

Implement detailed logging for timeouts

Implementing detailed logging for timeouts

Add distributed tracing

Identify blocking operations

Fix identified bottlenecks

Add circuit breakers for external calls

Adding circuit breakers for external calls

Implement timeout monitoring

Test fixes under load

Update runbooks for timeout issues


Implement comprehensive security audit and fixes

Perform manual code review for vulnerabilities

Run automated security scanning tools

Running automated security scanning tools

Performing manual code review for vulnerabilities

Check for SQL injection points

Review XSS vulnerabilities

Audit authentication and authorization

Auditing authentication and authorization

Check for sensitive data exposure

Review dependency vulnerabilities

Implement security headers

Add input validation and sanitization

Adding input validation and sanitization

Fix identified vulnerabilities

Set up security monitoring

Document security best practices

Schedule regular security audits


Researching WebSocket libraries for the framework

Install WebSocket dependencies

Design chat message data model

Create WebSocket connection handler

Implement message broadcasting logic

Create chat room management

Add user presence tracking

Implement message persistence

Create frontend WebSocket client

Add chat UI components

Handling connection failures and reconnection

Add typing indicators

Implement message read receipts

Write tests for WebSocket functionality

Writing tests for WebSocket functionality

Scale WebSocket infrastructure


Define logging requirements and levels

Defining logging requirements and levels

Choose logging framework

Design log format and structure

Implement structured logging

Add request/response logging middleware

Adding request/response logging middleware

Set up log aggregation service

Configure log retention policies

Implement error tracking

Add performance metrics collection

Create monitoring dashboards

Set up alerting rules

Test logging and monitoring system

Document logging best practices


Identifying slow queries through monitoring

Analyze query execution plans

Review database indexes

Identify missing or inefficient indexes

Identifying missing or inefficient indexes

Create appropriate indexes

Rewrite inefficient queries

Implement query result caching

Add database connection pooling

Test optimizations in staging

Measure performance improvements

Deploy optimizations to production

Monitoring query performance post-deployment


Research feature flagging solutions

Design feature flag data model

Choose feature flag management approach

Choosing feature flag management approach

Implement feature flag service

Creating admin interface for flag management

Integrate flag checks into application

Integrating flag checks into application

Add flag override capabilities

Implement user segmentation for flags

Implementing user segmentation for flags

Add analytics for flag usage

Document feature flag workflow

Train team on feature flag usage


Inventory all API endpoints

Document request/response schemas

Defining authentication and security schemes

Write endpoint descriptions

Create OpenAPI specification file

Set up API documentation viewer

Add code examples for each endpoint

Document error responses

Add rate limiting information

Generate interactive documentation

Set up automated documentation updates

Setting up automated documentation updates

Review documentation with stakeholders

Reviewing documentation with stakeholders


Analyze current test coverage

Identify untested critical paths

Design testing strategy pyramid

Set up testing framework and tools

Write unit tests for business logic

Write integration tests for APIs

Write end-to-end tests for user flows

Set up test data fixtures

Configuring CI pipeline for automated tests

Implement coverage reporting

Adding mutation testing for quality assurance

Document testing guidelines

Train team on testing practices


Analyze current JavaScript codebase

Set up TypeScript configuration

Install TypeScript and type definitions

Installing TypeScript and type definitions

Creating type definitions for shared interfaces

Migrate utility functions first

Migrate components one by one

Update build pipeline for TypeScript

Fix type errors incrementally

Add strict type checking gradually

Update documentation for TypeScript

Train team on TypeScript best practices

Training team on TypeScript best practices


Identify all user-facing text

Choose i18n library and framework

Create language resource files

Extract strings into translation keys

Extracting strings into translation keys

Implementing language detection and switching

Add date/time localization

Add currency and number formatting

Implement RTL language support

Create translation workflow

Set up automated translation updates

Setting up automated translation updates

Test all languages in UI

Document translation process


Review error logs and patterns

Identifying affected endpoints and conditions

Check database connection pool settings

Checking database connection pool settings

Analyze network latency and timeouts

Review external API calls

Implement detailed logging for timeouts

Implementing detailed logging for timeouts

Add distributed tracing

Identify blocking operations

Fix identified bottlenecks

Add circuit breakers for external calls

Adding circuit breakers for external calls

Implement timeout monitoring

Test fixes under load

Update runbooks for timeout issues


Run automated security scanning tools

Running automated security scanning tools

Performing manual code review for vulnerabilities

Check for SQL injection points

Review XSS vulnerabilities

Audit authentication and authorization

Auditing authentication and authorization

Check for sensitive data exposure

Review dependency vulnerabilities

Implement security headers

Add input validation and sanitization

Adding input validation and sanitization

Fix identified vulnerabilities

Set up security monitoring

Document security best practices

Schedule regular security audits


Create reusable component library with Storybook

Audit existing components for reusability

Create base components (Button, Input, etc.)

Create compound components (Card, Modal, etc.)

Auditing existing components for reusability

Design component library architecture

Designing component library architecture

Set up Storybook

Define component design tokens

Add component documentation

Create component usage examples

Implement component testing

Set up component versioning

Publish component library

Create contribution guidelines


Implement data export functionality with multiple formats

Analyze data export requirements
Design export data model
Implement CSV export
Implement Excel export
Implement PDF export
Add export progress tracking
Implement queue for large exports
Add export notification system
Create export history and management
Add export scheduling
Implement export filtering options
Test all export formats
Document export functionality

Analyze data export requirements

Design export data model

Implement CSV export

Implement Excel export

Implement PDF export

Add export progress tracking

Implement queue for large exports

Add export notification system

Create export history and management

Add export scheduling

Implement export filtering options

Test all export formats

Document export functionality


Set up distributed tracing for microservices

Install tracing libraries in each service

Choose distributed tracing solution

Installing tracing libraries in each service

Configure trace propagation headers

Instrument service endpoints

Instrument database calls

Instrument external API calls

Set up tracing backend

Create trace visualization dashboards

Define trace sampling strategy

Add span attributes and tags

Test trace correlation across services

Testing trace correlation across services

Document tracing architecture


Implement search functionality with Elasticsearch

Design search data model
Set up Elasticsearch cluster
Define index mappings and analyzers
Create data synchronization pipeline
Implement search query builder
Add faceted search capabilities
Implement search autocomplete
Add search result highlighting
Implement search analytics
Optimize search performance
Create search API endpoints
Add search UI components
Test search functionality
Document search features

Design search data model

Set up Elasticsearch cluster

Define index mappings and analyzers

Create data synchronization pipeline

Implement search query builder

Add faceted search capabilities

Implement search autocomplete

Add search result highlighting

Implement search analytics

Optimize search performance

Create search API endpoints

Add search UI components

Test search functionality

Document search features


Add comprehensive error handling and recovery system

Audit current error handling
Categorize error types and severity
Design error handling strategy
Implement global error handler
Create custom error classes
Add error logging and tracking
Implement retry mechanisms
Add circuit breaker pattern
Create error recovery procedures
Implement graceful degradation
Add user-friendly error messages
Create error monitoring dashboard
Document error handling procedures

Audit current error handling

Categorize error types and severity

Design error handling strategy

Implement global error handler

Create custom error classes

Add error logging and tracking

Implement retry mechanisms

Add circuit breaker pattern

Create error recovery procedures

Implement graceful degradation

Add user-friendly error messages

Create error monitoring dashboard

Document error handling procedures


Implement file upload with drag-and-drop and progress tracking

Implement chunked upload for large files

Research file upload libraries

Design file upload data model

Implement backend upload endpoint

Add file validation and security

Implementing chunked upload for large files

Add virus scanning integration

Create drag-and-drop frontend component

Creating drag-and-drop frontend component

Implement upload progress tracking

Add file preview functionality

Implement pause and resume uploads

Add upload queue management

Handle upload errors and retries

Test upload functionality

Document upload features


Refactor duplicate code into reusable utilities

Extract common data transformation logic

Identify duplicate code patterns

Analyze duplication across modules

Design utility function interfaces

Create utility modules

Extract common validation logic

Extracting common data transformation logic

Extract common API call patterns

Update code to use utilities

Add unit tests for utilities

Remove duplicate code

Review performance impact

Update documentation


Implement notification system with email, SMS, and push

Design notification data model
Choose notification service providers
Implement email notification service
Implement SMS notification service
Implement push notification service
Create notification templates
Add user notification preferences
Implement notification queue
Add notification scheduling
Implement delivery tracking
Handle delivery failures
Add notification history
Test all notification channels
Document notification system

Design notification data model

Choose notification service providers

Implement email notification service

Implement SMS notification service

Implement push notification service

Create notification templates

Add user notification preferences

Implement notification queue

Add notification scheduling

Implement delivery tracking

Handle delivery failures

Add notification history

Test all notification channels

Document notification system


Set up automated backup and disaster recovery

Update documentation with lessons learned

Identify critical data and systems

Define backup requirements and RTO/RPO

Defining backup requirements and RTO/RPO

Choose backup solution

Configure database backups

Configure file system backups

Implement backup encryption

Set up off-site backup replication

Create backup monitoring and alerts

Document backup procedures

Create disaster recovery plan

Test backup restoration

Run disaster recovery drill

Updating documentation with lessons learned


Implement rate limiting and API throttling

Choose rate limiting strategy (token bucket, sliding window)

Analyze API usage patterns

Define rate limiting rules per endpoint

Defining rate limiting rules per endpoint

Choose rate limiting strategy

Implement rate limiting middleware

Add rate limiting storage

Configure rate limit headers

Implement rate limit bypass for admins

Implementing rate limit bypass for admins

Add rate limit monitoring

Create rate limit analytics

Test rate limiting under load

Document rate limiting behavior


Identify events requiring audit logs
Design audit log data model
Implement audit logging middleware
Add user action tracking
Add data change tracking
Implement audit log storage
Add audit log search and filtering
Create audit log reports
Implement audit log retention policy
Add audit log alerts
Secure audit logs from tampering
Test audit logging system
Document audit logging procedures

Identify events requiring audit logs

Design audit log data model

Implement audit logging middleware

Add user action tracking

Add data change tracking

Implement audit log storage

Add audit log search and filtering

Create audit log reports

Implement audit log retention policy

Add audit log alerts

Secure audit logs from tampering

Test audit logging system

Document audit logging procedures


Analyze application for caching opportunities

Choose caching strategy (write-through, write-back, etc.)

Analyzing application for caching opportunities

Design cache key structure

Choose caching strategy

Implement cache layer

Add query result caching

Add API response caching

Implement cache invalidation logic

Add cache warming strategies

Implement cache stampede prevention

Monitor cache hit rates

Test cache performance

Document caching strategy


Identify all data input points
Define validation rules per data type
Create validation schemas
Implement request validation middleware
Add database constraint validation
Implement custom validators
Add validation error formatting
Create validation documentation
Test validation rules
Update API error responses
Train team on validation patterns

Identify all data input points

Define validation rules per data type

Create validation schemas

Implement request validation middleware

Implementing request validation middleware

Add database constraint validation

Implement custom validators

Add validation error formatting

Create validation documentation

Test validation rules

Update API error responses

Train team on validation patterns


Implement webhook system for third-party integrations

Design webhook data model
Implement webhook endpoint creation
Add webhook authentication
Implement webhook event triggering
Create webhook signature verification
Add retry logic for failed webhooks
Implement webhook delivery tracking
Create webhook management UI
Add webhook testing tools
Implement webhook rate limiting
Document webhook system
Test webhook integrations

Design webhook data model

Implement webhook endpoint creation

Add webhook authentication

Implement webhook event triggering

Create webhook signature verification

Add retry logic for failed webhooks

Implement webhook delivery tracking

Create webhook management UI

Add webhook testing tools

Implement webhook rate limiting

Document webhook system

Test webhook integrations


Optimize frontend bundle size and load time

Analyze current bundle size
Identify large dependencies
Implement code splitting
Add lazy loading for routes
Optimize image assets
Implement tree shaking
Remove unused dependencies
Add compression headers
Implement CDN for static assets
Add service worker for caching
Measure performance improvements
Document optimization strategies

Analyze current bundle size

Identify large dependencies

Implement code splitting

Add lazy loading for routes

Optimize image assets

Implement tree shaking

Remove unused dependencies

Add compression headers

Implement CDN for static assets

Add service worker for caching

Measure performance improvements

Document optimization strategies


Add comprehensive permission system with RBAC

Create role and permission database schema

Implement permission checking middleware

Define roles and permissions model

Creating role and permission database schema

Implementing permission checking middleware

Add role assignment interface

Implement permission inheritance

Create permission management UI

Add permission caching

Implement permission audit logging

Add permission checks to all endpoints

Adding permission checks to all endpoints

Test permission system

Document permission model


Implement statistical significance calculator

Design A/B test data model

Implement experiment configuration

Create user segmentation logic

Implement variant assignment

Add analytics integration

Create experiment management UI

Implementing statistical significance calculator

Add experiment monitoring

Implement experiment auto-termination

Create experiment reports

Test A/B testing framework

Document A/B testing process


Add comprehensive analytics and reporting

Define analytics requirements
Choose analytics solution
Implement event tracking
Add user behavior tracking
Implement funnel analytics
Create custom report builder
Add real-time dashboards
Implement data export functionality
Add scheduled reports
Implement analytics retention policy
Test analytics accuracy
Document analytics implementation

Define analytics requirements

Choose analytics solution

Implement event tracking

Add user behavior tracking

Implement funnel analytics

Create custom report builder

Add real-time dashboards

Implement data export functionality

Add scheduled reports

Implement analytics retention policy

Test analytics accuracy

Document analytics implementation