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Agent Lightning

Microsoft Research's agent training framework. Optimizes AI agents with Reinforcement Learning, Automatic Prompt Optimization, and Supervised Fine-tuning. Ze...

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Microsoft Research's agent training framework. Optimizes AI agents with Reinforcement Learning, Automatic Prompt Optimization, and Supervised Fine-tuning. Ze...

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Install for OpenClaw

Quick setup
  1. Download the package from Yavira.
  2. Extract the archive and review SKILL.md first.
  3. Import or place the package into your OpenClaw setup.

Requirements

Target platform
OpenClaw
Install method
Manual import
Extraction
Extract archive
Prerequisites
OpenClaw
Primary doc
SKILL.md

Package facts

Download mode
Yavira redirect
Package format
ZIP package
Source platform
Tencent SkillHub
What's included
SKILL.md, _meta.json, examples/config.yaml, examples/train_agent.py

Validation

  • Use the Yavira download entry.
  • Review SKILL.md after the package is downloaded.
  • Confirm the extracted package contains the expected setup assets.

Install with your agent

Agent handoff

Hand the extracted package to your coding agent with a concrete install brief instead of figuring it out manually.

  1. Download the package from Yavira.
  2. Extract it into a folder your agent can access.
  3. Paste one of the prompts below and point your agent at the extracted folder.
New install

I downloaded a skill package from Yavira. Read SKILL.md from the extracted folder and install it by following the included instructions. Tell me what you changed and call out any manual steps you could not complete.

Upgrade existing

I downloaded an updated skill package from Yavira. Read SKILL.md from the extracted folder, compare it with my current installation, and upgrade it while preserving any custom configuration unless the package docs explicitly say otherwise. Summarize what changed and any follow-up checks I should run.

Trust & source

Release facts

Source
Tencent SkillHub
Verification
Indexed source record
Version
1.0.0

Documentation

ClawHub primary doc Primary doc: SKILL.md 18 sections Open source page

Agent Lightning โšก

Microsoft Research's agent training framework. Turn your AI agents into optimizable beasts with (almost) zero code changes.

Core Features

๐Ÿ”Œ Universal Compatibility: Works with LangChain, OpenAI Agent SDK, AutoGen, CrewAI, Microsoft Agent Framework, or plain Python OpenAI ๐ŸŽฏ Selective Optimization: Optimize one or more agents in a multi-agent system ๐Ÿง  Multiple Algorithms: Reinforcement Learning (RL), Automatic Prompt Optimization (APO), Supervised Fine-tuning (SFT) โšก Zero Code Change: Add agl.emit_xxx() helpers or use tracer โ€” your agent keeps running as usual

Installation

pip install agentlightning For latest nightly build: pip install --upgrade --index-url https://test.pypi.org/simple/ --extra-index-url https://pypi.org/simple/ --pre agentlightning

1. Instrument Your Agent

Option A: Add emit helpers (recommended) import agentlightning as agl # In your agent's tool calls response = agl.emit_tool_call( model=model, messages=messages, tools=tools, context={"task": "search"} ) Option B: Use tracer (zero code change) from agentlightning import tracer # Wrap your agent with tracer with tracer.trace("my-agent", input_data): result = your_agent.run(user_query)

2. Create Training Config

# config.yaml agent: name: "my-agent" type: "openai" # openai, langchain, autogen, crewai training: algorithm: "grpo" # grpo, apo, sft, rloo episodes: 100 batch_size: 16 environment: eval_tasks: - "math" - "coding" - "reasoning"

3. Run Training

agent-lightning train --config config.yaml

Algorithms

AlgorithmUse CaseDescriptionGRPOGeneral RLGroup Relative Policy Optimization โ€” stable, works well for most agentsAPOPrompt TuningAutomatic Prompt Optimization โ€” improves system promptsSFTSupervised Fine-tuningSupervised Fine-tuning with preference dataRLOOLong-horizonRLOO for tasks with sparse rewards

agent-lightning train

Train your agent with configured algorithm.

agent-lightning eval

Evaluate agent on benchmark tasks.

agent-lightning export

Export trained model/prompts for deployment.

agent-lightning serve

Launch serving endpoint for trained agent.

Example: SQL Agent Training

See full example: Train SQL Agent with RL from agentlightning import Agent, RLConfig, GRPOTrainer # 1. Define your agent sql_agent = Agent( name="sql-agent", system_prompt="You are a SQL expert...", tools=[execute_sql, query_schema] ) # 2. Configure RL training config = RLConfig( algorithm="grpo", episodes=500, learning_rate=1e-4 ) # 3. Train trainer = GRPOTrainer(config=config) trainer.train(sql_agent, eval_tasks=["sql-generation"])

Environment Variables

# Required for training export OPENAI_API_KEY="sk-..." # Optional: for remote storage export AGL_STORAGE="s3://my-bucket/agent-lightning/"

Python API

from agentlightning import LightningStore, GRPOTrainer # LightningStore keeps tasks, resources, and traces in sync store = LightningStore() # Read traces, learn, and update prompts trainer = GRPOTrainer(store=store) trainer.train(agent=my_agent)

Monitoring Training

# Launch dashboard agent-lightning dashboard --port 8080 # View logs tail -f ~/.agent-lightning/logs/training.log

Best Practices

Start Small: Begin with 10-50 episodes to verify setup Define Clear Rewards: Design reward functions that match your goal Use Evaluation Tasks: Always eval on held-out tasks Checkpoint Frequently: Save model every N episodes Monitor Convergence: Watch loss curves in dashboard

Resources

Documentation Examples API Reference ArXiv Paper Discord Community

Citation

If you use Agent Lightning in research: @misc{luo2025agentlightningtrainai, title={Agent Lightning: Train ANY AI Agents with Reinforcement Learning}, author={Xufang Luo and Yuge Zhang and Zhiyuan He and Zilong Wang and Siyun Zhao and Dongsheng Li and Luna K. Qiu and Yuqing Yang}, year={2025}, eprint={2508.03680}, archivePrefix={arXiv}, primaryClass={cs.AI} }

Category context

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Package contents

Included in package
2 Config1 Docs1 Scripts
  • SKILL.md Primary doc
  • examples/train_agent.py Scripts
  • _meta.json Config
  • examples/config.yaml Config