Ecosystem
Our picks from the AI coding landscape. Every tool here is one we have used, evaluated, or closely follow. Opinionated, not exhaustive.
AI Coding Agents
6Terminal-native coding agents and assistants
Claude Code
Anthropic's agentic coding tool. Lives in your terminal, understands your codebase, executes tasks through natural language. The one we built ClaudePedia to document.
GSD 2
A heavily modified Pi Code fork with GSD embedded. Meta-prompting, context engineering, and spec-driven development: agents work autonomously without losing the big picture.
OpenCode
Powerful AI coding agent for the terminal. Multi-model support, clean TUI. Pioneered many patterns others adopted.
Kilo Code
All-in-one agentic engineering platform. #1 coding agent on OpenRouter with 1.5M+ users and 25T+ tokens processed.
Gemini CLI
Google's open-source AI agent for the terminal. Brings Gemini directly to your command line with MCP support and 1M token context.
Codex CLI
OpenAI's lightweight coding agent for the terminal. Written in Rust for speed.
AI-Native IDEs
3Integrated development environments with built-in AI agents
Antigravity
Google's agentic development platform. Agent-first IDE with a Manager Surface for spawning and orchestrating multiple agents across workspaces. Free in public preview.
Windsurf
AI-powered IDE by Codeium. Deep codebase understanding with Cascade, their agentic flow engine.
Cursor
The AI code editor that started the agentic IDE category. Composer mode, multi-file editing, strong model support.
Agent Frameworks
21Libraries and platforms for building AI agents and pipelines
DeepAgents
Agent harness built with LangChain and LangGraph. Planning tool, filesystem backend, subagent spawning: handles complex agentic tasks out of the box.
LangGraph
Build resilient language agents as graphs. Stateful, multi-actor workflows with cycles, persistence, and human-in-the-loop.
LangChain
The agent engineering platform. Composable chains, tool use, retrieval, memory: the foundation everything else builds on.
CrewAI
Role-based multi-agent orchestration. Agents take on personas (researcher, writer, etc.) and collaborate with minimal boilerplate. Native MCP and A2A support.
OpenAI Agents SDK
Official OpenAI framework for multi-agent workflows. Lightweight, built-in MCP tool integration, persistent sessions, and realtime voice agents.
Claude Agent SDK
Wraps the Claude Code CLI as a programmable SDK. Bidirectional interactive conversations, custom tools and hooks as functions. Everything Claude Code can do, available programmatically.
Google ADK
Google's official Agent Development Kit. Code-first, multi-language (Python/Go/TS/Java). Optimized for Gemini but model-agnostic. Built-in evaluation and deployment tools.
Mastra
TypeScript-native agent framework from the Gatsby team (YC W25). Built-in workflows, 40+ model providers, human-in-the-loop. The leading TS-first agent framework.
Vercel AI SDK
Provider-agnostic TypeScript toolkit from the Next.js creators. 20M+ monthly downloads. Works with React, Svelte, Vue, Angular. The standard for AI-powered web apps.
Agno
Pure Python agents with no graphs, chains, or heavy abstractions. Agents, teams, and workflows as plain Python. High-performance runtime. Formerly PhiData.
smolagents
Hugging Face's code-first agents in ~1,000 lines of core logic. Agents write actions as code, not just tool calls, reducing steps and LLM calls by ~30%.
Pydantic AI
Type-safe agent framework built on Pydantic. Leverages Python's type system to catch agent logic errors at dev time. The Pythonic way to build AI agents.
DSPy
Program language models instead of prompting them. Declarative framework from Stanford NLP. Compilers automatically optimize prompts and weights. Fundamentally different paradigm.
MetaGPT
Simulates a software company. Agents take roles (PM, architect, engineer) and follow SOPs. Give it one requirement, get PRD, design, tasks, and code.
AutoGPT
The original autonomous agent (2023). Most-starred AI agent repo. Now a full platform for creating, deploying, and managing continuous AI agents.
Letta
Stateful agents with OS-like memory management. Agent controls its own memory through function calls (read, write, search, archive). Formerly MemGPT.
Haystack
Production-ready AI orchestration by deepset. Modular pipelines for RAG, agents, and semantic search. Standardized tool calling with transparent, explicit architecture.
Semantic Kernel
Microsoft's enterprise-grade AI orchestration SDK. Multi-language (C#/Python/Java). Core of the Microsoft Agent Framework. Strong Azure and Copilot integration.
CAMEL
Research-focused multi-agent framework. 'Finding the Scaling Law of Agents.' 100+ researchers contributing. Related projects include OASIS (1M-agent simulations).
Atomic Agents
Lightweight, modular 'atomic' approach. Single-purpose, composable components built on Instructor + Pydantic. Maximum control with minimal abstraction.
A2A Protocol
Agent2Agent: open protocol for communication between opaque agentic applications. Linux Foundation project backed by Google.
AI Design Tools
3Design-to-code tools and AI-powered visual editors
Pencil
AI-native vector design tool with MCP integration. Design-as-Code: turn prompts into UI directly on the live canvas.
Google Stitch
Google's AI design tool. Connects to your UI designs and generates production-ready code.
Figma
The collaborative design platform. AI features, dev mode, and MCP server support make it the bridge between design and code.
Skills & Plugins
6Claude Code skills, plugins, and CLI extensions we use daily
Get Shit Done (GSD)
Meta-prompting, context engineering, and spec-driven development for Claude Code. The workflow system we use to build ClaudePedia.
Compound Engineering
Office Compound Engineering plugin for Claude Code, Codex, and more. Structured workflows for engineering teams.
gstack
Full skill suite for Claude Code: QA, shipping, browsing, design review, investigation, deployment, and more. The backbone of our workflow.
UI/UX Pro Max
Design intelligence plugin. 50+ styles, 161 palettes, 57 font pairings, 99 UX guidelines. Searchable database for design decisions.
Context7
Fetches current library documentation on demand. No more stale training data for React, Next.js, Tailwind, or any framework.
Playwright CLI
Browser automation skill for testing and screenshots. Headless Chromium with persistent state across commands.
Last curated: April 2026
Go Deeper
The ecosystem is massive. These 116 aggregators do the heavy lifting: registries, benchmarks, curated lists, and landscape maps maintained by active communities.
Last curated: April 2026