grpo-rl-training SKILL.md skillA
This file is byte-identical to the first copy the registry indexed, one of 4 indexed copies. Same content hash, so the same checks give both the same grade.
grpo-rl-training from jensen-yao/agents-skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add jensen-yao/agents-skills/grpo-rl-training@v1.0.0Pins v1.0.0 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- jensen-yao/agents-skills
- Path
skills/grpo-rl-training/SKILL.md- Versions recorded
- 1
- Latest version
- v1.0.0, committed Aug 15, 2026
- Size
- 17,200 bytes
- Repository stars
- 5
- License
- MIT
Expert guidance for GRPO/RL fine-tuning with TRL for reasoning and task-specific model training.
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
# GRPO/RL Training with TRL Expert-level guidance for implementing Group Relative Policy Optimization (GRPO) using the Transformer Reinforcement Learning (TRL) library. This skill provides battle-tested patterns, critical insights, and production-ready workflows for fine-tuning language models with custom reward functions. ## When to Use This Skill Use GRPO training when you need to: - **Enforce specific output formats** (e.g., XML tags, JSON, structured reasoning) - **Teach verifiable tasks** with objective correctness metrics (math, coding, fact-checking) - **Improve reasoning capabilities** by rewarding chain-of-thought patterns - **Align models to domain-specific behaviors** without labeled preference data - **Optimize for multiple objectives** simultaneously (format + correctness + style) **Do NOT use GRPO for:** - Simple supervised fine-tuning tasks (use SFT instead) - Tasks without clear reward signals - When you already have high-quality preference pairs (use DPO/PPO instead) --- ## Core Concepts ### 1. GRPO Algorithm Fundamentals **Key Mechanism:** - Generates **multiple completions** for each prompt (group size: 4-16) …
Read the whole file at its exact version.
How to install
mdr add jensen-yao/agents-skills/grpo-rl-training@sha256:c9b771c280840f12The line at the top of this page pins the label v1.0.0, 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_33j4v2olv3m3at2s)
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Versions
The registry has recorded 1 version of this file, committed on Aug 15, 2026.
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 (17200 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
jensen-yao/agents-skills · 5 stars · license MIT · pushed 2026-10-26 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_33j4v2olv3m3at2s GET https://markdownregistry.com/api/v1/resolve?ref=jensen-yao/agents-skills/grpo-rl-training GET https://markdownregistry.com/api/v1/blob/c9b771c280840f12d0e98749250c35df4a83a21f95465c41e8ae13f0229ecb40
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.
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