Master AI Agent tools
Installation and usage tutorials covering mainstream AI coding tools like Claude Code, Codex, Cursor, and Trae, plus deep dives into the four core concepts: Agent, LLM, Skill, and MCP.
AI Agent Tools
Installation and usage tutorials for mainstream AI coding tools.
Claude Code
Anthropic · CLI Agent
A terminal-native AI coding agent from Anthropic that autonomously understands codebases, edits files, runs commands, and completes multi-step development tasks.
OpenAI Codex
OpenAI · CLI Agent
An official command-line AI coding assistant from OpenAI, built on the GPT model family and optimized for code generation and development workflows.
Trae
ByteDance · AI IDE
ByteDance's AI-native IDE—the first of its kind in China—deeply integrates LLMs such as Doubao and DeepSeek, supporting natural-language interaction and multimodal collaboration.
Cursor
Anysphere · AI IDE
A next-generation AI code editor from Anysphere with a built-in Composer agent that can run multiple coding tasks in parallel.
GitHub Copilot
GitHub / Microsoft · Plugin
An AI coding assistant co-developed by GitHub and OpenAI, offering code completion, chat, and an Agent mode.
Windsurf
Codeium · AI IDE
An AI-native IDE from Codeium with a built-in Cascade agent that deeply couples the terminal and editor.
Aider
Open Source · CLI Agent
An open-source command-line AI coding assistant with deep Git integration—every change is auto-committed and can be rolled back in one step.
Continue
Open Source · Plugin
An open-source AI coding plugin that supports VS Code and the entire JetBrains suite, connects to any model, and lets you build a private AI assistant.
Devin
Cognition Labs · CLI Agent
The world's first AI software engineer launched by Cognition Labs, capable of completing software engineering tasks end-to-end.
SWE-agent
Princeton NLP · CLI Agent
An autonomous AI software engineer agent developed by the Princeton NLP team, focused on resolving GitHub issues.
OpenHands
All-Hands-AI · CLI Agent
An open-source general-purpose AI software engineer agent platform, formerly known as OpenDevin.
AutoGPT
Significant Gravitas · CLI Agent
An open-source autonomous AI agent framework capable of autonomously completing complex multi-step tasks.
CrewAI
CrewAI Inc. · Concept
A framework for orchestrating role-playing AI agents, enabling multiple agents to collaborate on complex tasks.
LangChain
LangChain Inc. · Concept
An open-source framework for building LLM applications, providing a complete toolchain and component library.
LlamaIndex
LlamaIndex Inc. · Concept
A data framework focused on RAG applications, connecting LLMs with private data.
Dify
LangGenius · Concept
An open-source LLM application development platform, providing visual building and deployment capabilities.
Zed
Zed Industries · AI IDE
A high-performance code editor built by the Atom team, with built-in AI features and real-time collaboration.
Codeium
Exafunction · AI IDE
A free AI code completion tool that supports multiple IDEs and programming languages.
Tabnine
Codota · AI IDE
A privacy-focused AI code completion tool that supports local deployment and custom model training.
Amazon Q Developer
Amazon Web Services · AI IDE
AWS's AI programming assistant, deeply integrated with AWS services and best practices.
Sourcegraph Cody
Sourcegraph · AI IDE
An AI programming assistant from Sourcegraph, skilled at understanding large codebases.
Replit AI
Replit · AI IDE
AI tools built into the Replit platform, providing code completion, chat, deployment, and other features.
Ollama
Ollama · Concept
A tool for running large language models locally, simplifying model deployment and usage.
vLLM
UC Berkeley · Concept
A high-performance LLM inference and serving engine, providing extreme inference speed.
Hugging Face
Hugging Face Inc. · Concept
An AI community platform providing models, datasets, applications, and a complete toolchain.
Prompt Engineering
Community · Concept
The technique of designing and optimizing LLM prompts to improve AI output quality.
Cline
Cline · Plugin
An open-source VS Code AI coding agent that autonomously edits multiple files, runs terminal commands, and browses the web.
AI Concepts
Understand the core concepts behind AI Agents: Agent, LLM, Skill, and MCP.
AI Agent
An AI Agent is an intelligent system that uses an LLM as its brain and can autonomously perceive, reason, plan, and call tools to complete multi-step tasks.
Large Language Model
A Large Language Model (LLM) is a deep neural network based on the Transformer architecture, containing tens of billions of parameters and trained on massive amounts of text.
AI Skill
A Skill is a capability flow, defined in Markdown, that an Agent can invoke; it builds on Function Calling and is more advanced than a single tool.
Model Context Protocol
MCP is an open standard introduced by Anthropic in November 2024 that provides a unified interface for LLM applications to connect to external data and tools.
New to AI coding?
Start with the concepts — understand how Agent, LLM, Skill, and MCP work together — then pick the right tool for you.