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 + cloud security	~3.5K	View
Refactoring	Code improvement	~2.5K	View
Testing	Test design, TDD, chaos & contract testing	~4K	View
Documentation	Technical writing	~2.5K	View
Performance	Optimization, profiling, CDN & edge	~3.5K	View
Git & VCS	Branching & commits	~2.5K	View
Integration Guardian	System integrity	~3.5K	View
Accessibility Audit	WCAG 2.2 compliance	~3K	View
Migration & Upgrade	Framework & DB migrations	~2.5K	View
Monitoring & Observability	Logs, metrics, traces	~3K	View
Debugging & Troubleshooting	Production debugging & incident response	~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, event sourcing, saga, serverless	~4.5K	View
Full-Stack Development	Next.js/Nuxt/SvelteKit, WebSocket, background jobs	~4.5K	View
Prompt Chaining	Multi-step workflows, context management	~3K	View
AI & LLM Integration	RAG, vector DBs, AI agents, safety	~3.5K	View
API Design & GraphQL	Schema-first, DataLoader, caching, contracts	~4K	View
Cloud & Infrastructure	IaC, multi-region, K8s, cost optimization	~4K	View
Data Engineering	Pipelines, dbt, streaming, data quality	~4K	View
Compliance & Governance	GDPR, HIPAA, SOC 2, threat modeling	~3.5K	View

📋 Foundation & Project Prompts (Interactive Sessions)

Prompt	Purpose	Technologies	File
Foundation ⭐	Universal best practices	Any	View
Web Development	Frontend apps + SEO + a11y	React, Vue, Angular, CSS	View
API Development	Backend services + idempotency	REST, GraphQL, Node, Go	View
Data Science & ML	ML pipelines + MLOps	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
Game Development	Game engines	Unity, Unreal, Godot	View
Embedded & IoT	Hardware/firmware	C, C++, Rust, FreeRTOS	View
Blockchain & Web3	Smart contracts & dApps	Solidity, Rust, Foundry	View
Desktop Apps	Cross-platform desktop	Tauri, Electron, Qt	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 + Debugging & Troubleshooting
Production Incident	Agent System + Debugging + Monitoring
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
API Design (GraphQL)	Agent System + API Design & GraphQL
Complex Multi-Step Task	Agent System + Prompt Chaining
Add AI/LLM Features	Agent System + AI & LLM Integration
Code Review	Agent System + Code Review
Security Check	Agent System + Security Audit
Compliance Audit	Agent System + Compliance & Governance
Accessibility Check	Agent System + Accessibility Audit
Reduce Tech Debt	Agent System + Refactoring
Framework/DB Migration	Agent System + Migration & Upgrade
Write Tests	Agent System + Testing
Write Docs	Agent System + Documentation
Optimize Speed	Agent System + Performance
Cloud Deployment	Agent System + Cloud & Infrastructure
Data Pipelines	Agent System + Data Engineering
Set Up Monitoring	Agent System + Monitoring & Observability
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
Game Development	Foundation + Game Development
Embedded / IoT	Foundation + Embedded & IoT
Smart Contracts	Foundation + Blockchain & Web3
Desktop App	Foundation + Desktop Apps

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Repository Structure

prompts/
└── english/
    ├── agents/          # Agent-optimized prompts (28 files)
    ├── base/            # Foundation prompt
    ├── project-types/   # Domain-specific prompts (11 files)
    ├── examples/        # Real-world usage examples (7 files)
    └── workflows/       # APEI methodology, prompt selection & troubleshooting guides

Resources

Resource	Description
QUICK-START.md	30-second setup guide
USAGE.md	Detailed examples & advanced usage
CONTRIBUTING.md	Contribution guidelines
CHANGELOG.md	Version history
CLAUDE.md	AI agent configuration for this repo
Agent Index	Full agent prompt catalog
Prompt Index	All prompts organized by category
Prompt Selector	Decision tree for choosing prompts
Workflow Guide	APEI methodology deep-dive
Troubleshooting Guide	Issue diagnosis & resolution flowchart

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.