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AI

10 cheat sheets

Prompt Engineering Patterns

Reliable prompt structures for reasoning, extraction, classification, generation, extended thinking, and vision tasks with Claude.

2026-04-25
prompting llm ai claude chain-of-thought xml thinking

Claude Tool Use (Function Calling)

Define tools, handle tool calls, run agentic loops, use parallel tools, and manage errors with the Claude API.

2026-04-25
claude tool-use api anthropic function-calling agentic

RAG Implementation Checklist

End-to-end checklist and code for building reliable Retrieval-Augmented Generation pipelines — chunking, embedding, vector DBs, retrieval, and evaluation.

2026-04-25
rag ai embeddings vector-db llm retrieval semantic-search

Claude API — Python

Complete Python SDK reference for the Anthropic Claude API — messages, streaming, vision, extended thinking, prompt caching, batch processing, and token counting.

2026-04-25
claude api anthropic python sdk streaming vision caching batch

Claude Code Overview

Install, configure, and use Claude Code — Anthropic's agentic CLI. Covers interactive mode, headless scripting, CLAUDE.md memory files, and the project/user settings hierarchy.

2026-04-25
claude-code cli agentic anthropic setup headless claude-md

Claude Code Slash Commands

Complete reference for every built-in Claude Code slash command — session control, context management, configuration, tools, and MCP.

2026-04-25
claude-code slash-commands cli reference

Claude Code Settings and Permissions

Complete settings.json schema for Claude Code — permission rules, tool allowlists/denylists, environment variables, model selection, and file locations with precedence order.

2026-04-25
claude-code settings permissions configuration json

Claude Code Hooks

Automate Claude Code lifecycle events with shell hooks — PreToolUse, PostToolUse, Notification, and Stop. Covers configuration, environment variables, exit codes, and practical blocking examples.

2026-04-25
claude-code hooks automation lifecycle shell

Claude Code MCP Servers

Add and configure Model Context Protocol (MCP) servers in Claude Code — HTTP, SSE, and stdio transports, management commands, and a curated list of useful servers.

2026-04-25
claude-code mcp model-context-protocol tools extensions

Claude Code Power-User Tips

Advanced Claude Code workflows — effective CLAUDE.md authoring, custom skills, multi-agent patterns, cost control, keyboard shortcuts, and daily workflow techniques.

2026-04-25
claude-code tips workflow productivity cost claude-md skills