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 Agents
Autonomous coding agents you can install and run today.
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.
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.
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.
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.
AI Agent
Concept
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.
AI Models
What large language models are, and where to get them.
Claude
Anthropic's frontier model family, the engine behind Claude Code and the Anthropic API.
GPT
OpenAI's frontier model family, available through the OpenAI API and Codex.
Gemini
Google DeepMind's frontier multimodal model family, exposed through the Gemini API and Google AI Studio.
Llama
Meta's open-weight model family — the family that made open weights mainstream, with the broadest serving-tool support.
Qwen
Alibaba's open-weight family with the widest size ladder and strong multilingual (200+ languages) coverage; the primary model series on ModelScope.
DeepSeek
DeepSeek's open-weight reasoning and coding family, released under permissive licences (MIT).
AI Skills
Reusable skill packages that teach an agent how to do a job.
Anthropic Skills
Source: Vendor official
Anthropic's official Agent Skills repository: document manipulation (DOCX/PDF/PPTX/XLSX), canvas & frontend design, MCP server building, and webapp testing.
Vercel Labs Skills
Source: Vendor official
Vercel's official agent skills and the `npx skills` open tooling: React/Next.js best practices, AI SDK usage, web design guidelines and deployment workflows.
OpenAI Skills
Source: Vendor official
OpenAI's official skills catalog for Codex: agent skills, a skill creator, and concise planning workflows.
Microsoft Skills
Source: Vendor official
Microsoft's official skills covering Azure cloud services, Bot Framework, Cognitive Services, and enterprise development patterns across .NET, Python, TypeScript, Go, Rust and Java.
Remotion Skills
Source: Vendor official
Remotion's official skills for building video programmatically in React, including a set of modular rules covering composition, timing and rendering.
Expo Skills
Source: Vendor official
Expo's official skills for project workflows and Expo Application Services (EAS), covering app design, deployment and upgrades.
MCP
Curated Model Context Protocol servers, each linking to its official source.
GitHub
Source: Official (vendor)
GitHub's official MCP server, connecting AI tools to GitHub repositories, issues, pull requests and workflows.
Git
Source: Official (protocol reference)
Official reference server providing tools to read, search, and manipulate Git repositories.
Filesystem
Source: Official (protocol reference)
Official reference server for secure file operations with configurable access controls.
Playwright
Source: Official (vendor)
Microsoft's official MCP server for browser automation using Playwright, driving pages through structured accessibility snapshots instead of screenshots.
Fetch
Source: Official (protocol reference)
Official reference server for web content fetching and conversion into LLM-friendly text.
Brave Search
Source: Official (vendor)
Brave's official MCP server exposing Brave Search API web and local search to agents.
AI IDEs
Editors with AI built in.
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.
Windsurf
Codeium · AI IDE
An AI-native IDE from Codeium with a built-in Cascade agent that deeply couples the terminal and editor.
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.
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.
AI Plugins
Extensions that add AI assistance to the editor you already use.
GitHub Copilot
GitHub / Microsoft · Plugin
An AI coding assistant co-developed by GitHub and OpenAI, offering code completion, chat, and an Agent mode.
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.
Cline
Cline · Plugin
An open-source VS Code AI coding agent that autonomously edits multiple files, runs terminal commands, and browses the web.
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
The vocabulary behind AI coding: Agent, LLM, Skill, MCP and the frameworks around them.
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.
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.
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.
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.
New to AI coding?
Start with the concepts — understand how Agent, LLM, Skill, and MCP work together — then pick the right tool for you.