verl-tool

Instructor is a Python library providing structured outputs for LLMs using Pydantic models, enabling AI agents to receive reliable typed responses — a key building block for agent tool-use.

Agent Lightning is Microsoft's open-source training framework for AI agents, using reinforcement learning to enhance agent capabilities.

OctoTools is an agentic framework with extensible tools for complex reasoning, featuring a tool card system for flexible composition of diverse reasoning capabilities.

An autonomous LLM agent framework for complex task solving with automatic task decomposition, tool usage, and multi-step reasoning from the OpenBMB team