agent-lightning SKILL.md skillA
agent-lightning from coco-research/coco is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add coco-research/coco/agent-lightning@git:20260802.1479e32Pins git:20260802.1479e32 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- coco-research/coco
- Path
skills/agent-lightning/SKILL.md- Versions recorded
- 2
- Latest version
- git:20260802.1479e32, committed Aug 2, 2026
- First version recorded
- Apr 26, 2026
- Size
- 8,106 bytes
- Repository stars
- 796
- License
- a license file GitHub does not identify
Train and optimize AI agents using Microsoft's Agent Lightning framework with reinforcement learning. Use when setting up agent training, instrumenting agents with tracing, configuring LightningStore, implementing reward functions, or optimizing prompts with RL/APO algorithms.
Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.
What the file says
# Agent Lightning
Microsoft's framework for training AI agents with reinforcement learning, automatic prompt optimization, and supervised fine-tuning.
## Quick Start
### Installation
```bash
pip install agentlightning
```
For nightly builds:
```bash
pip install --upgrade --index-url https://test.pypi.org/simple/ --extra-index-url https://pypi.org/simple/ --pre agentlightning
```
### Minimal Integration (Zero Code Change)
Add `agl.emit_xxx()` helpers to your existing agent:
```python
import agentlightning as agl
# Your existing agent code
def my_agent(task):
agl.emit_input(task) # Track input
response = llm.generate(task)
agl.emit_output(response) # Track output
reward = evaluate(response)
agl.emit_reward(reward) # Track reward
return response
```
## Core Concepts
### Architecture Flow
```
Agent (your code) → agl.emit_xxx() → Spans → LightningStore → Algorithm → Updated Resources
```
### Key Components
| Component | Purpose |
|-----------|---------|
| `LightningStore` | Central hub for traces, tasks, and resources |
| `Tracer` | Collects spans from agent execution |
| `Algorithm` | Consumes traces, produces improvements |
…Read the whole file at its exact version.
How to install
mdr add coco-research/coco/agent-lightning@sha256:8e29e4f578b91ae4The line at the top of this page pins the label git:20260802.1479e32, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.
[](https://markdownregistry.com/a/art_2ll7ygnk5iducikn)
4 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 2 versions of this file, between Apr 26, 2026 and Aug 2, 2026, about one every 99 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20260802.1479e32 latest | 2026-08-02 | 1479e32 | 8,106 B | A | view · diff |
| git:20260426.d53cc6c | 2026-04-26 | d53cc6c | 8,086 B | A | view |
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (8106 bytes)
- pass: No zero-width or bidi control characters
- pass: No instruction hidden inside an HTML comment
- pass: No link to an exfiltration or paste host
- pass: No credential-shaped string
- pass: No instruction to send local credentials anywhere
- pass: No text hidden with inline styles
- pass: No prompt-injection phrasing
- pass: No curl or wget piped into a shell
- pass: No recursive delete of root, home or parent
- pass: No instruction to read or print local credentials
- pass: No base64 blob over 200 characters
- pass: No link to a raw IP address
- pass: No script tag
Source
coco-research/coco · 796 stars · license a license file GitHub does not identify · pushed 2026-10-31 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_2ll7ygnk5iducikn GET https://markdownregistry.com/api/v1/resolve?ref=coco-research/coco/agent-lightning GET https://markdownregistry.com/api/v1/blob/8e29e4f578b91ae4a67ef1728b0e92b1090395511a9b77855bc0d89c1bc530b8
Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.
Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.