Senior Fullstack

Senior Fullstack

Fullstack development skill with project scaffolding and code quality analysis tools.

Table of Contents

• Trigger Phrases
• Tools
• Workflows
• Reference Guides

Trigger Phrases

Use this skill when you hear:

• "scaffold a new project"
• "create a Next.js app"
• "set up FastAPI with React"
• "analyze code quality"
• "check for security issues in codebase"
• "what stack should I use"
• "set up a fullstack project"
• "generate project boilerplate"

Tools

Project Scaffolder

Generates fullstack project structures with boilerplate code.

Supported Templates:

• nextjs - Next.js 14+ with App Router, TypeScript, Tailwind CSS
• fastapi-react - FastAPI backend + React frontend + PostgreSQL
• mern - MongoDB, Express, React, Node.js with TypeScript
• django-react - Django REST Framework + React frontend

Usage:

# List available templates
python scripts/project_scaffolder.py --list-templates

# Create Next.js project
python scripts/project_scaffolder.py nextjs my-app

# Create FastAPI + React project
python scripts/project_scaffolder.py fastapi-react my-api

# Create MERN stack project
python scripts/project_scaffolder.py mern my-project

# Create Django + React project
python scripts/project_scaffolder.py django-react my-app

# Specify output directory
python scripts/project_scaffolder.py nextjs my-app --output ./projects

# JSON output
python scripts/project_scaffolder.py nextjs my-app --json

Parameters:

Output includes:

• Project structure with all necessary files
• Package configurations (package.json, requirements.txt)
• TypeScript configuration
• Docker and docker-compose setup
• Environment file templates
• Next steps for running the project

Code Quality Analyzer

Analyzes fullstack codebases for quality issues.

Analysis Categories:

• Security vulnerabilities (hardcoded secrets, injection risks)
• Code complexity metrics (cyclomatic complexity, nesting depth)
• Dependency health (outdated packages, known CVEs)
• Test coverage estimation
• Documentation quality

Usage:

# Analyze current directory
python scripts/code_quality_analyzer.py .

# Analyze specific project
python scripts/code_quality_analyzer.py /path/to/project

# Verbose output with detailed findings
python scripts/code_quality_analyzer.py . --verbose

# JSON output
python scripts/code_quality_analyzer.py . --json

# Save report to file
python scripts/code_quality_analyzer.py . --output report.json

Parameters:

Output includes:

• Overall score (0-100) with letter grade
• Security issues by severity (critical, high, medium, low)
• High complexity files
• Vulnerable dependencies with CVE references
• Test coverage estimate
• Documentation completeness
• Prioritized recommendations

Sample Output:

============================================================
CODE QUALITY ANALYSIS REPORT
============================================================

Overall Score: 75/100 (Grade: C)
Files Analyzed: 45
Total Lines: 12,500

--- SECURITY ---
  Critical: 1
  High: 2
  Medium: 5

--- COMPLEXITY ---
  Average Complexity: 8.5
  High Complexity Files: 3

--- RECOMMENDATIONS ---
1. [P0] SECURITY
   Issue: Potential hardcoded secret detected
   Action: Remove or secure sensitive data at line 42

Workflows

Workflow 1: Start New Project

1. Choose appropriate stack based on requirements (see Stack Decision Matrix)
2. Scaffold project structure
3. Verify scaffold: confirm package.json (or requirements.txt) exists
4. Run initial quality check — address any P0 issues before proceeding
5. Set up development environment

# 1. Scaffold project
python scripts/project_scaffolder.py nextjs my-saas-app

# 2. Verify scaffold succeeded
ls my-saas-app/package.json

# 3. Navigate and install
cd my-saas-app
npm install

# 4. Configure environment
cp .env.example .env.local

# 5. Run quality check
python ../scripts/code_quality_analyzer.py .

# 6. Start development
npm run dev

Workflow 2: Audit Existing Codebase

1. Run code quality analysis
2. Review security findings — fix all P0 (critical) issues immediately
3. Re-run analyzer to confirm P0 issues are resolved
4. Create tickets for P1/P2 issues

# 1. Full analysis
python scripts/code_quality_analyzer.py /path/to/project --verbose

# 2. Generate detailed report
python scripts/code_quality_analyzer.py /path/to/project --json --output audit.json

# 3. After fixing P0 issues, re-run to verify
python scripts/code_quality_analyzer.py /path/to/project --verbose

Workflow 3: Stack Selection

Use the tech stack guide to evaluate options:

1. SEO Required? → Next.js with SSR
2. API-heavy backend? → Separate FastAPI or NestJS
3. Real-time features? → Add WebSocket layer
4. Team expertise → Match stack to team skills

See references/tech_stack_guide.md for detailed comparison.

Reference Guides

Architecture Patterns (references/architecture_patterns.md)

• Frontend component architecture (Atomic Design, Container/Presentational)
• Backend patterns (Clean Architecture, Repository Pattern)
• API design (REST conventions, GraphQL schema design)
• Database patterns (connection pooling, transactions, read replicas)
• Caching strategies (cache-aside, HTTP cache headers)
• Authentication architecture (JWT + refresh tokens, sessions)

Development Workflows (references/development_workflows.md)

• Local development setup (Docker Compose, environment config)
• Git workflows (trunk-based, conventional commits)
• CI/CD pipelines (GitHub Actions examples)
• Testing strategies (unit, integration, E2E)
• Code review process (PR templates, checklists)
• Deployment strategies (blue-green, canary, feature flags)
• Monitoring and observability (logging, metrics, health checks)

Tech Stack Guide (references/tech_stack_guide.md)

• Frontend frameworks comparison (Next.js, React+Vite, Vue)
• Backend frameworks (Express, Fastify, NestJS, FastAPI, Django)
• Database selection (PostgreSQL, MongoDB, Redis)
• ORMs (Prisma, Drizzle, SQLAlchemy)
• Authentication solutions (Auth.js, Clerk, custom JWT)
• Deployment platforms (Vercel, Railway, AWS)
• Stack recommendations by use case (MVP, SaaS, Enterprise)

Quick Reference

Stack Decision Matrix

Common Issues

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