trl-setup

trl-setup is a skill for Claude Code, Codex from cxcscmu/SkillLearnBench. It costs 34 tokens per session (304 once invoked), scanned A, original, MIT.

An installation and compatibility guide for TRL, a Python library for training language models with preference data. It covers related machine-learning packages and common import problems.

In plain words
What is it for?
Use it to prepare a TRL training environment and troubleshoot missing trainers or utility imports.
Why use it?
It helps avoid setup failures caused by incompatible package versions or renamed library components.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

Needs its repository: it runs a file that does not travel with it, so clone the repository first. The line is cd /root/SimPO && python unit_test/unit_test_1.py.

Good fit Use it to prepare a TRL training environment and troubleshoot missing trainers…

Compare 6 skills from other repositories ↓
Install

Getting it into your agent

It runs from inside its repository, so the clone comes first — what it calls does not travel with the file alone.

Clone the repo
git clone --depth 1 https://github.com/cxcscmu/SkillLearnBench
agentmods
npx agentmods add skills/cxcscmu/skilllearnbench/trl-setup

Made for: Claude Code, Codex.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for trl-setup

README.md
[![agentmods](https://agentmods.dev/badge/skills/cxcscmu/skilllearnbench/trl-setup.svg)](https://agentmods.dev/skills/cxcscmu/skilllearnbench/trl-setup)
Your own site
<a href="https://agentmods.dev/skills/cxcscmu/skilllearnbench/trl-setup"><img src="https://agentmods.dev/badge/skills/cxcscmu/skilllearnbench/trl-setup.svg" alt="Measured on agentmods" height="20"></a>
Per session 34 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 304 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00034 $0.00304
Opus 5 $0.00017 $0.00152
Sonnet 5 $0.00007 $0.00061
Haiku 4.5 $0.00003 $0.00030

Measured 3d ago against content hash 407259810013, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-06, from the pricing page.

Security

Grade A, and why

trl-setup scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 3d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

skills/b1-one-shot-claude-sonnet-4-6/nlp-paper-reproduction/trl-setup/SKILL.md · 33 lines

What it actually says

TRL Setup

Installation

pip install torch transformers trl accelerate peft datasets --break-system-packages

Compatibility Notes

  • TRL imports from trl.trainer.utils: DPODataCollatorWithPadding, pad_to_length, etc.
  • Some imports may change across TRL versions (e.g., trl_sanitze_kwargs_for_tagging vs trl_sanitize_kwargs_for_tagging)
  • If running in externally-managed Python (Debian), use --break-system-packages flag

Common Import Errors

  • trl_sanitze_kwargs_for_tagging not found → check trl version, may be renamed or removed
  • Missing CPOTrainer → upgrade trl: pip install --upgrade trl

Running Tests from Project Root

cd /root/SimPO && python -m pytest unit_test/unit_test_1.py -v
# or
cd /root/SimPO && python unit_test/unit_test_1.py

Key TRL Trainer Utilities

  • DPODataCollatorWithPadding: handles padding for preference pairs
  • pad_to_length: pads tensor to specified length
  • disable_dropout_in_model: disables dropout during eval
Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 3d ago First seen · 33 lines · 34 tokens per session scan A 407259810013

Subscribe to this mod's changes

trl-setup is a skill published in the GitHub repository cxcscmu/SkillLearnBench (83 stars, last pushed 1mo ago), licensed MIT. It adds 34 tokens to every session and 304 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-03.

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