Claude Code Prompts

Production-ready system prompts for Claude AI and coding agents. Built on the APEI cycle: Analyze → Plan → Execute → Iterate.

Prompt Catalog

🤖 Agent Prompts (Autonomous AI Agents)

Prompt	Purpose	Tokens	File
Agent System ⭐	Core operating system	~1.5K	View
Error Analysis	Debugging & root cause	~2K	View
Project Workflow	Full lifecycle management	~2.5K	View
Quick Reference	Cheat sheet (minimal)	~0.8K	View
Code Review	Systematic PR review	~2K	View
Security Audit	Vulnerability detection	~2.5K	View
Refactoring	Code improvement	~2.5K	View
Testing	Test design & TDD	~3K	View
Documentation	Technical writing	~2.5K	View
Performance	Optimization & profiling	~3K	View
Git & VCS	Branching & commits	~2.5K	View
Integration Guardian	System integrity	~3.5K	View

🎯 Claude Code-Specific Prompts

Prompt	Purpose	Tokens	File
Mode Transitions ⭐	/think, /ultrathink, /compact modes & planning	~2.5K	View
Token Optimization	Token saving strategies for Claude Code	~2.5K	View
Workflow & Config	CLAUDE.md, hooks, permissions, MCP	~3K	View

🏗️ Architecture & Full-Stack Prompts

Prompt	Purpose	Tokens	File
Technology Stack ⭐	Library discovery, modern tools, hidden gems	~4K	View
Architecture Patterns	System design, microservices, DDD, CQRS	~3.5K	View
Full-Stack Development	Next.js/Nuxt/SvelteKit, end-to-end type safety	~3.5K	View
Prompt Chaining	Multi-step workflows, context management	~3K	View

📋 Foundation & Project Prompts (Interactive Sessions)

Prompt	Purpose	Technologies	File
Foundation ⭐	Universal best practices	Any	View
Web Development	Frontend apps	React, Vue, Angular, CSS	View
API Development	Backend services	REST, GraphQL, Node, Go	View
Data Science & ML	ML pipelines	Python, pandas, PyTorch	View
Mobile	Mobile apps	iOS, Android, Flutter, RN	View
DevOps & CI/CD	Infrastructure	K8s, Docker, Terraform	View
Database & SQL	Data layer	PostgreSQL, MySQL, Redis	View
General Software	Cross-language	Python, JS, Go, Java, C#	View

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Quick Start

For AI Agents (Claude Code, Copilot)

1. Copy content of claude-agent-system-prompt.md
2. Paste as system prompt
3. Give task → Agent runs APEI cycle automatically

For Interactive Sessions

1. Copy Foundation prompt + project-type prompt
2. Paste at start of Claude session
3. Describe your task → Follow the APEI cycle together

Token Budget Guide

Context Budget	Recommended Setup
< 2K tokens	Quick Reference only
2K–8K tokens	Agent System Prompt
8K+ tokens	Agent System + project-type prompt

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Common Combinations

Project Type	Prompts to Use
AI Agent Task	Agent System
Claude Code Setup	Agent System + Workflow & Config
Claude Code Planning	Agent System + Mode Transitions
Token-Efficient Session	Agent System + Token Optimization
Debug / Fix Bugs	Agent System + Error Analysis
New Project	Agent System + Project Workflow
Choose Best Tools	Agent System + Technology Stack
System Architecture	Agent System + Architecture Patterns
Full-Stack App (modern)	Agent System + Full-Stack Development
Complex Multi-Step Task	Agent System + Prompt Chaining
Code Review	Agent System + Code Review
Security Check	Agent System + Security Audit
Reduce Tech Debt	Agent System + Refactoring
Write Tests	Agent System + Testing
Write Docs	Agent System + Documentation
Optimize Speed	Agent System + Performance
Git Workflow	Agent System + Git & VCS
Cross-Cutting Integrity	Agent System + Integration Guardian
React / Vue App	Foundation + Web Development
REST API	Foundation + API Development
ML Model	Foundation + Data Science & ML
Mobile App	Foundation + Mobile
DevOps / Infra	Foundation + DevOps & CI/CD
Database Design	Foundation + Database & SQL
General Software	Foundation + General Software

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Repository Structure

prompts/
└── english/
    ├── agents/          # Agent-optimized prompts (19 files)
    ├── base/            # Foundation prompt
    ├── project-types/   # Domain-specific prompts (7 files)
    ├── examples/        # Real-world usage examples
    └── workflows/       # APEI methodology guide

Resources

Resource	Description
QUICK-START.md	30-second setup guide
USAGE.md	Detailed examples & advanced usage
CONTRIBUTING.md	Contribution guidelines
CHANGELOG.md	Version history
Agent Index	Full agent prompt catalog
Prompt Index	All prompts organized by category
Workflow Guide	APEI methodology deep-dive

Customization

Fork → Modify prompts → Add team standards → Use.

All prompts are MIT-licensed templates. Adapt for your stack, conventions, and tools.

Contributing

See CONTRIBUTING.md. Key areas: new project types, prompt improvements, examples.

License

MIT License — use, modify, and distribute freely.