nemotron-customize

nemotron-customize is a skill for Claude Code from NVIDIA-NeMo/Nemotron. It costs 159 tokens per session (3,865 once invoked), scanned A, original, Apache-2.0.

A repository-based workflow for customizing Nemotron models, including preparing data, training, alignment, evaluation, and model conversion. Nemotron is a family of language models, and customization means adapting a model for a particular use.

In plain words
What is it for?
Use it to plan or configure data curation, translation, supervised training, parameter-efficient training, reinforcement-learning alignment, benchmarks, checkpoint conversion, optimization, or evaluation of Nemotron models.
Why use it?
It helps connect the required customization steps and their outputs without manually assembling a multi-step pipeline.

Skill for Claude Code

Written for Claude Code: shipped in a Claude Code plugin. Also seen: mentions subagents.

Part of the nemotron-customize plugin — 1 skill shipped together

Good fit Use it to plan or configure data curation, translation, supervised training, parameter-efficient training, reinforcement-learning alignment, benchmarks, checkpoint conversion, optimization, or evaluation of Nemotron models.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/nvidia-nemo/nemotron/nemotron-customize
About the project

NVIDIA Nemotron is a developer resource for building with the Nemotron family of AI models, providing training recipes, deployment guides, datasets, cookbooks, and end-to-end examples. It is intended for developers and researchers training, customizing, deploying, or applying Nemotron models to agentic AI use cases. Its catalogue add-ons include a Claude Code plugin that guides users through Nemotron customization steps.

NVIDIA-NeMo/Nemotron · 2,034 stars · on GitHub · docs.nvidia.com

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Any agent
npx skills add NVIDIA-NeMo/Nemotron --skill nemotron-customize
Clone the repo
git clone --depth 1 https://github.com/NVIDIA-NeMo/Nemotron

Made for: Claude Code.

Or install nemotron-customize, the plugin that ships this one along with the rest of its 1 skill.

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 nemotron-customize

README.md
[![agentmods](https://agentmods.dev/badge/skills/nvidia-nemo/nemotron/nemotron-customize/github.svg)](https://agentmods.dev/skills/nvidia-nemo/nemotron/nemotron-customize)
Your own site
<a href="https://agentmods.dev/skills/nvidia-nemo/nemotron/nemotron-customize"><img src="https://agentmods.dev/badge/skills/nvidia-nemo/nemotron/nemotron-customize/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for nemotron-customize

Your own site · 80×15
<a href="https://agentmods.dev/skills/nvidia-nemo/nemotron/nemotron-customize"><img src="https://agentmods.dev/badge/skills/nvidia-nemo/nemotron/nemotron-customize.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 159 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 3,865 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. Third-party audits
  • NVIDIA SkillSpector pass 7 Sept 2026
How audits are shown
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 $0.00159 $0.03865
Opus 5 $0.00079 $0.01932
Sonnet 5 $0.00032 $0.00773
Haiku 4.5 $0.00016 $0.00386

Measured 10d ago against content hash 985a97bb839e, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, from the pricing page.

Security

Grade A, and why

nemotron-customize 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 10d 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/nemotron-customize/SKILL.md · 323 lines

How it starts

The opening of the file, as written. The whole thing — 323 lines — stays where its author put it; the contents beside it link to each section on GitHub.

nemotron-customize

IMPORTANT: Read this file before answering any nemotron-customize, Nemotron customization, Curator curation, translation, SFT, PEFT, RL, conversion, optimization, checkpoint or existing/hosted-endpoint evaluation, or multi-step pipeline request. This applies whether the user names one step or asks you to compose several steps into a pipeline.

Evaluation requests count even when no training is involved: "evaluate", "benchmark", "smoke test", or "score" an existing/hosted endpoint, an API/model ID, or a deployed model all route to eval/model_eval. Read this skill for those too.

Purpose

Turn a model-customization request into a repo-native Nemotron step pipeline. Plan the DAG, validate artifact wiring, and create only the YAML/config files needed to run existing steps.

Use this skill only for inspecting, configuring, validating, running, or submitting existing Nemotron steps or multi-step training/customization pipelines. For frontend, dashboard, visualization, generic ML advice, billing/access, or unrelated coding tasks, stop with a short scope note and do not inspect the step catalog or edit files in that turn.

Prerequisites

  • A checkout of the Nemotron repo with src/nemotron/steps/ present; run from the repo root.
  • uv available to invoke uv run nemotron steps ....
  • For remote execution: an env profile TOML (NEMOTRON_ENV_FILE or env*.toml) with a section matching the selected step.
  • For hosted services (translation, hosted eval): the auth environment variable expected by the step (for example NVIDIA_API_KEY), exported in the environment — never inlined or committed.
  • User-provided concrete values (model/checkpoint, data paths, output dir, hardware/GPU count) before any command is presented as runnable.

Limitations

  • Does not invent new catalog steps. When no existing step, runner, recipe, CLI, or config can satisfy the request, it names the gap (Explorer mode) instead of fabricating a step.
  • Produces YAML/config for existing steps; new Python/shell is out of scope except in Explorer mode after the gap is approved.
  • Not for deployment-only/serving, frontend, dashboards, generic ML advice, or non-Nemotron tasks.
  • Does not guess concrete values (paths, model IDs, GPU counts, profiles); it asks or returns Blocked when they are missing.

Read the full file on GitHub · 323 lines

Files

What ships with it

34 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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. 10d ago First seen · 323 lines · 159 tokens per session scan A 985a97bb839e

Subscribe to this mod's changes

nemotron-customize is a skill published in the GitHub repository NVIDIA-NeMo/Nemotron (2,034 stars, last pushed 2d ago), licensed Apache-2.0. It adds 159 tokens to every session and 3,865 once invoked, about $0.0008 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 2026-08-30.

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