Apply RTDT customization specifically to the shipped auto-aero virtual wind tunnel.

Custom licenceAuto-check passedResearch & Science

Install Rtdt Aero

skills CLI
$ npx skills add NVIDIA-Omniverse-blueprints/digital-twins-for-fluid-simulation --skill rtdt-aero -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI
$ gh skill install NVIDIA-Omniverse-blueprints/digital-twins-for-fluid-simulation rtdt-aero --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy
$ git clone --depth 1 https://github.com/NVIDIA-Omniverse-blueprints/digital-twins-for-fluid-simulation.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/auto-aero/rtdt-aero .claude/skills/rtdt-aero && rm -rf skills-src

Use ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.

Claude Code skills documentation · loads skills from .claude/skills/

Facts

Skill name
rtdt-aero
GitHub stars
140
Token cost
~1.9k tokens
SKILL.md length
803 words
Files
2 (incl. references)
Skills in repo
3
Repo updated
First seen
Licence
Custom licence

At a glance

Apply RTDT customization specifically to the shipped auto-aero virtual wind tunnel.

  • Works in 6 steps: Add the typed token/default to the… → Add matching variant sets to the hero… → In CarCFD.usda, keep the outer… → …
  • Changing car CFD geometry variants
  • SKILL.md covers File map, Change a car geometry axis, Change an output or… and Cache consequences, plus 3 more sections
  • Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md

What it does

Rtdt Aero is an agent skill from NVIDIA-Omniverse-blueprints/digital-twins-for-fluid-simulation. Apply RTDT customization specifically to the shipped auto-aero virtual wind tunnel. Use when changing car CFD geometry variants, wind-tunnel controls, output fields, Kit-CAE 3.0 visualization, lite cache coverage, or the fixed comparison result sets. Read rtdt-core and rtdt-customize first.

Its SKILL.md is about 1.9k tokens, which your agent loads only when the skill is triggered. The skill folder holds 2 other files, including reference files (for example `references/geometry-recipe.md`).

It sits in Research & Science, covering Physical and earth sciences. The repository describes itself as: Reference implementation of real-time AI Physics in an interactive visualization and analysis workflow, applied to CFD and aerodynamics.

When your agent uses it

  • Changing car CFD geometry variants
  • Wind-tunnel controls
  • Kit-CAE 3.0 visualization
  • Lite cache coverage

Example prompts

  • “/rtdt-aero”

Requirements

  • Python 3

Workflow steps

6 steps, taken from the first numbered list in SKILL.md.

  1. Add the typed token/default to the correct AppState schema and regenerate the schema.
  2. Add matching variant sets to the hero and CFD compositions as needed.
  3. In CarCFD.usda, keep the outer OmniSciDataset with
  4. Add the manifest control and Variant bindings. Keep the control ID equal to the schema short
  5. Author the AppState default, bridged state key, and frontend widget. Keep that default aligned in
  6. Validate schema/manifest/stage wiring and run live inference in the standard profile.

What it can do on your machine

Read from SKILL.md and the folder at commit 6261054. It shows what the files ask for, not the result of running them.

  • Tool permissions

    Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.

    From allowed-tools in the SKILL.md frontmatter.

  • Runs code

    No scripts in the folder and no shell commands in SKILL.md (its code samples are bash).

    From the folder's file list and the shell code blocks in SKILL.md.

  • Network

    No URLs in SKILL.md.

    From URLs in SKILL.md, links to its own repository left out.

  • Credentials

    Names no API keys, tokens, secrets or passwords.

    From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

Rtdt Aero loads about 1.9k tokens when it runs, and up to ~3.4k if it reads all its reference files. Until then it costs about 75 tokens; SKILL.md has 803 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~75
When it runs · the whole SKILL.md, loaded when a task matches
~1.9k
With references · SKILL.md plus every file in references/, read only if the agent opens them
~3.4k

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Auto-check passed

The automated check found no risky patterns in SKILL.md.

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.

SKILL.md

Its licence (Custom licence) doesn't allow us to republish the file, so here is its outline and opening line. It has 803 words (~1,878 tokens).

“Read rtdt-core and rtdt-customize first. This skill maps their contracts onto the shipped specialization.”

— opening of SKILL.md by NVIDIA-Omniverse-blueprints, Custom licence
name
rtdt-aero

Read the full SKILL.md on GitHub

Files

SKILL.md and 1 other file (references) in skills/auto-aero/rtdt-aero of NVIDIA-Omniverse-blueprints/digital-twins-for-fluid-simulation.

  • SKILL.md
  • references/geometry-recipe.md

Open the folder on GitHubat commit 6261054

Compare with similar skills

Rtdt Aero next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.

Rtdt Aero compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Rtdt Aero this skillNVIDIA-Omniverse-blueprints/digital-twins-for-fluid-simulation140—~1.9kAutomated safety check: PassCustom licence
AstropyzLanqing/codex-claude-academic-skills4.7k13 repos~2.9kAutomated safety check: PassBSD-3-Clause
PymatgenzLanqing/codex-claude-academic-skills4.7k11 repos~5kAutomated safety check: PassMIT
Cantera Ignition DelayK-Dense-AI/scientific-agent-skills48k1 repos~2.2kAutomated safety check: PassMIT
Weathertrpc-group/trpc-agent-go1.9k8 repos~591Automated safety check: PassApache-2.0
Pymol VisualizationChatMol/ChatMol373—~1.2kAutomated safety check: PassMIT

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More from NVIDIA-Omniverse-blueprints/digital-twins-for-fluid-simulation

  • Rtdt Core

    NVIDIA-Omniverse-blueprints/digital-twins-for-fluid-simulation

    Shared foundation for Real-Time Digital Twins (RTDT) work. An agent skill from NVIDIA-Omniverse-blueprints/digital-twins-for-fluid-simulation.

    140 GitHub stars~1.7k tokensUpdated 21 days ago
    Auto-check: notes
  • Rtdt Customize

    NVIDIA-Omniverse-blueprints/digital-twins-for-fluid-simulation

    Customize an RTDT workflow, AppState schema, USD stage, frontend control, or Kit-CAE 3.0 geometry/result wiring.

    140 GitHub stars~1.2k tokensUpdated 21 days ago
    Auto-check passed

Questions about Rtdt Aero

What does Rtdt Aero do?

Apply RTDT customization specifically to the shipped auto-aero virtual wind tunnel. Rtdt Aero is an agent skill from NVIDIA-Omniverse-blueprints/digital-twins-for-fluid-simulation. Apply RTDT customization specifically to the shipped auto-aero virtual wind tunnel.

When should I use Rtdt Aero?

Rtdt Aero fits situations like: changing car CFD geometry variants; wind-tunnel controls; kit-CAE 3.0 visualization; lite cache coverage.

How do I install Rtdt Aero in Claude Code?

Run `npx skills add NVIDIA-Omniverse-blueprints/digital-twins-for-fluid-simulation --skill rtdt-aero -a claude-code`. Or copy the skill folder (skills/auto-aero/rtdt-aero in NVIDIA-Omniverse-blueprints/digital-twins-for-fluid-simulation) into .claude/skills/rtdt-aero in your project. Claude Code loads it when a task matches its description.

How do I install Rtdt Aero in Codex?

Run `npx skills add NVIDIA-Omniverse-blueprints/digital-twins-for-fluid-simulation --skill rtdt-aero -a codex`. Or copy the skill folder (skills/auto-aero/rtdt-aero in NVIDIA-Omniverse-blueprints/digital-twins-for-fluid-simulation) into .agents/skills/rtdt-aero in your project. Codex loads it when a task matches its description.

Can I use Rtdt Aero in Cursor, Gemini CLI or GitHub Copilot?

Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add NVIDIA-Omniverse-blueprints/digital-twins-for-fluid-simulation --skill rtdt-aero -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/rtdt-aero, .gemini/skills/rtdt-aero, .github/skills/rtdt-aero and .opencode/skills/rtdt-aero in your project.

What does Rtdt Aero need to run?

SKILL.md names no scripts, command-line tools or credentials: Rtdt Aero is instructions for the agent only. Our summary lists: Python 3.

Does Rtdt Aero access the network?

SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.

Is Rtdt Aero safe to install?

Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.

What licence does Rtdt Aero use?

Rtdt Aero has a licence file (the repository's licence) that doesn't match a standard licence. Read it on GitHub before reusing the skill.

How many tokens does Rtdt Aero use?

About 1.9k tokens (SKILL.md is roughly 7.5k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full. Its references folder adds about 1.6k tokens, read only when the agent opens those files.

What are the alternatives to Rtdt Aero?

Skills that share tags, products or a category with Rtdt Aero: Astropy (zLanqing/codex-claude-academic-skills, 4.7k stars), Pymatgen (zLanqing/codex-claude-academic-skills, 4.7k stars), Cantera Ignition Delay (K-Dense-AI/scientific-agent-skills, 48k stars) and Weather (trpc-group/trpc-agent-go, 1.9k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Rtdt Aero?

NVIDIA-Omniverse-blueprints (a GitHub organization) maintains it in NVIDIA-Omniverse-blueprints/digital-twins-for-fluid-simulation, which has 140 GitHub stars. The repository holds 3 skills in this directory. The repository was last updated on September 19, 2026.

Source: NVIDIA-Omniverse-blueprints/digital-twins-for-fluid-simulation on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.