isaac-lab

isaac-lab is a skill for Claude Code from robium-ai/robium. It costs 128 tokens per session (4,297 once invoked), scanned A, original, MIT.

A set of instructions for training robot-control policies in Isaac Sim, NVIDIA's robot simulator, using reinforcement or imitation learning.

In plain words
What is it for?
It helps run Isaac Lab tasks, train policies with simulated experience or demonstrations, and export the trained policies.
Why use it?
It organizes the training workflow after Isaac Sim is working, including simulated tasks, demonstrations, and policy export.

Skill for Claude Code

Written for Claude Code: shipped in a Claude Code plugin.

Needs its repository: it runs a file that does not travel with it, so clone the repository first. The line is python scripts/environments/list_envs.py.

Part of the robium plugin — 70 skills, 1 agent, 6 hooks shipped together

Good fit It helps run Isaac Lab tasks, train policies with simulated experience or demonstrations, and export the trained policies.

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/robium-ai/robium
agentmods
npx agentmods add skills/robium-ai/robium/isaac-lab

Made for: Claude Code.

Or install robium, the plugin that ships this one along with the rest of its 70 skills, 1 agent, 6 hooks.

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 isaac-lab

README.md
[![agentmods](https://agentmods.dev/badge/skills/robium-ai/robium/isaac-lab.svg)](https://agentmods.dev/skills/robium-ai/robium/isaac-lab)
Your own site
<a href="https://agentmods.dev/skills/robium-ai/robium/isaac-lab"><img src="https://agentmods.dev/badge/skills/robium-ai/robium/isaac-lab.svg" alt="Measured on agentmods" height="20"></a>
Per session 128 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 4,297 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 warn 7 Sept 2026
SkillSpector: 6 findings, up to high

These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →

  • high Prompt Injection · line 70
    Hidden instructions were detected in comments or invisible text. These could contain malicious directives. Manual review is recommended.
    Fix: Audit all comments and invisible characters. Remove any instructions that direct the agent to perform unauthorized actions. Use plain, reviewable content.
  • high Prompt Injection · line 87
    Hidden instructions were detected in comments or invisible text. These could contain malicious directives. Manual review is recommended.
    Fix: Audit all comments and invisible characters. Remove any instructions that direct the agent to perform unauthorized actions. Use plain, reviewable content.
  • high Prompt Injection · line 106
    Hidden instructions were detected in comments or invisible text. These could contain malicious directives. Manual review is recommended.
    Fix: Audit all comments and invisible characters. Remove any instructions that direct the agent to perform unauthorized actions. Use plain, reviewable content.
  • high Prompt Injection · line 117
    Hidden instructions were detected in comments or invisible text. These could contain malicious directives. Manual review is recommended.
    Fix: Audit all comments and invisible characters. Remove any instructions that direct the agent to perform unauthorized actions. Use plain, reviewable content.
  • high Prompt Injection · line 180
    Hidden instructions were detected in comments or invisible text. These could contain malicious directives. Manual review is recommended.
    Fix: Audit all comments and invisible characters. Remove any instructions that direct the agent to perform unauthorized actions. Use plain, reviewable content.
  • medium Excessive Agency · line 213
    Skill enables autonomous high-impact decisions without human-in-the-loop verification. Critical operations (destructive commands, financial transactions, data deletion) should require explicit user confirmation.
    Fix: Add human-in-the-loop confirmation for destructive, irreversible, or high-impact operations. Never auto-execute commands that modify files, send data, or alter system state.
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 $0.00128 $0.04297
Opus 5 $0.00064 $0.02148
Sonnet 5 $0.00026 $0.00859
Haiku 4.5 $0.00013 $0.00430

Measured 3d ago against content hash a887c8298532, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-07, from the pricing page.

Security

Grade A, and why

isaac-lab 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/isaac-lab/SKILL.md · 286 lines

How it starts

The opening of the file, as written. The whole thing — 286 lines — stays where its author put it; the contents beside it link to each section on GitHub.

isaac-lab

The GPU-parallel RL/IL training layer of robium's NVIDIA stack, built on top of an already-running Isaac Sim: prebuilt environments and tasks (isaaclab_tasks), training entry points for several RL libraries, an imitation-learning path for generating and training on simulated demonstrations, and exporting a trained policy. Isaac Lab (isaac-sim/IsaacLab, current release v3.0.0-beta2.patch1, published 2026-07-02, verified via direct fetch of the GitHub releases API this session) is NVIDIA's own framework layered on Isaac Sim, not a separate product to install independently. Its main branch's own installation docs state support for Isaac Sim 4.5/5.0/5.1 and recommend the latest 5.1.0 release specifically (verified via direct fetch of the installation docs on 2026-07-10); that may trail the newest Isaac Sim release the isaac-sim skill cites, so confirm the current supported-version pairing before installing rather than assuming the two always track together.

When to use this skill

  • Running a prebuilt Isaac Lab task, training a policy with an RL library on top of a working Isaac Sim install, generating/training on simulated demonstrations, or exporting a trained policy for deployment.
  • The trigger phrases in the description: 'isaac lab', 'GPU RL for robots', 'train in isaac', sim-to-real policy training in the NVIDIA stack.
  • Cross-references: go to the sibling skill instead when the question is:
    • Isaac Sim itself is not installed/working yet (GPU floor, container, USD scene, robot/sensor import, ROS 2 bridge) → isaac-sim. This skill assumes Isaac Sim is already running; it only adds the training layer on top.
    • Imitation learning on datasets recorded from a real robot (the LeRobotDataset format, lerobot-train/lerobot-record) → lerobot. This skill's own imitation-learning path (see Usage patterns) starts from demonstrations recorded inside Isaac Sim, not real hardware; that distinction is the actual boundary, not "imitation learning" as a category.
    • Whether to use the NVIDIA stack (Isaac Sim/Lab) at all vs. LeRobot's own sim/eval toolingarchitect decides this, gated on the GPU floor (see Platform gotchas).
    • Which simulator to use in general, before Isaac Sim is chosen → simulation.
    • Deciding data-sourcing strategy (how much sim-generated vs. real data a project needs) → the data umbrella skill. This skill only covers the mechanics of Isaac Lab's own demonstration-generation and training tools, not the sourcing decision.

Read the full file on GitHub · 286 lines

Files

What ships with it

2 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. 3d ago First seen · 286 lines · 128 tokens per session scan A a887c8298532

Subscribe to this mod's changes

isaac-lab is a skill published in the GitHub repository robium-ai/robium (9 stars, last pushed 9d ago), licensed MIT. It adds 128 tokens to every session and 4,297 once invoked, about $0.0006 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.