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AI Agents & Agent Tools

Frameworks, tools and infrastructure for building AI agents and helping them use tools and get work done.

Agent Skills by Addy Osmani
MIT
Production-grade engineering skills for AI coding agents, mapped to the development lifecycle -- spec, plan, build, test, review and ship.
Actively maintained
- AI Agents & Agent Tools
AgentOps
MIT
Python SDK for AI agent monitoring, LLM cost tracking and benchmarking, integrating with most major agent frameworks including CrewAI, LangChain and AutoGen.
Permissive license
- AI Agents & Agent Tools
Aider
Apache-2.0
AI pair programming in your terminal -- Aider edits code in your local git repo, running tests and committing changes as it goes.
Well documented
- AI Agents & Agent Tools
Anthropic Skills
Apache-2.0
Anthropic's public repository of Agent Skills -- example skills, the Agent Skills specification and a starter template for teaching agents repeatable tasks.
Actively maintained
- AI Agents & Agent Tools
browser-use
MIT
A library that lets AI agents control a real web browser -- clicking, typing, navigating and reading pages -- to complete tasks that require the open web.
Actively maintained
- AI Agents & Agent Tools
CLI-Anything
Apache-2.0
Turns any professional software into an agent-native CLI tool via a single pip install, so AI agents can control real applications without fragile UI automation.
Actively maintained
- AI Agents & Agent Tools
Cline
Apache-2.0
Autonomous coding agent available as an IDE extension, CLI assistant or SDK, with a human-in-the-loop approval workflow for every file change and command.
Actively maintained
- AI Agents & Agent Tools
Composio
MIT
Powers 1000+ toolkits, tool search, context management and authentication so AI agents can actually take action, not just plan it.
Actively maintained
- AI Agents & Agent Tools
Hugging Face Skills
Apache-2.0
Agent skills for AI/ML work on the Hugging Face Hub -- dataset creation, model training and evaluation, plus an hf CLI skill for core Hub operations.
Actively maintained
- AI Agents & Agent Tools
LangGraph
MIT
Build resilient, stateful agents as graphs -- explicit nodes and edges for control flow, rather than an implicit agent loop, for reliable long-running or multi-step workflows.
Actively maintained
- AI Agents & Agent Tools
Letta
Apache-2.0
A platform for building stateful agents with advanced memory that learns and self-improves over time, rather than resetting between conversations.
Actively maintained
- AI Agents & Agent Tools
MCP Servers
MIT
Official reference implementations of the Model Context Protocol -- the open standard now adopted across OpenAI, Google, Microsoft and Anthropic for connecting agents to tools and data.
Actively maintained
- AI Agents & Agent Tools
Mem0
Apache-2.0
The memory layer for AI agents -- drop-in persistent memory infrastructure that remembers context across conversations and sessions.
Actively maintained
- AI Agents & Agent Tools
OpenHands
MIT
AI-driven software development platform where autonomous agents can modify code, run commands, browse the web, and call APIs to complete engineering tasks end to end.
Actively maintained
- AI Agents & Agent Tools
Ponytail
MIT
A coding-agent skill that enforces YAGNI and minimal, pragmatic solutions -- installs into Claude Code, Cursor, Codex and 15+ other agent platforms.
Actively maintained
- AI Agents & Agent Tools
Scientific Agent Skills
MIT
177 scientific and research skills for AI agents -- bioinformatics, cheminformatics, clinical research, data analysis and scientific writing, plus 100+ databases.
Actively maintained
- AI Agents & Agent Tools
Skyvern
AGPL-3.0
Automates browser-based workflows using computer vision and LLMs to understand and interact with websites, even ones it hasn't seen before.
Actively maintained
- AI Agents & Agent Tools
smolagents
Apache-2.0
A barebones library for agents that think in code -- the agent writes and executes actual code to take actions, rather than emitting structured JSON tool calls.
Actively maintained
- AI Agents & Agent Tools
Superpowers
MIT
An agentic skills framework that gives coding agents a full development methodology -- brainstorming, planning, TDD, debugging and subagent-driven execution.
Actively maintained
- AI Agents & Agent Tools
SWE-agent
MIT
Takes a GitHub issue and autonomously tries to fix it with your LLM of choice; also usable for offensive cybersecurity and competitive coding challenges (NeurIPS 2024).
Actively maintained
- AI Agents & Agent Tools
Vercel Agent Skills
MIT
Vercel's official collection of agent skills -- React and Next.js performance rules, web interface guidelines and Vercel project optimization.
Actively maintained
- AI Agents & Agent Tools