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mcp/skillhub

Agent Skill

Cdf Simulation skill

cdf-simulationNVIDIA/skillsskills/cdf-simulation/SKILL.md

Component-owned guidance for CDF Simulation requests submitted directly or through Airflow-triggered DIG Flow Catalog prompts — golden THT board, THT pin-geometry variation, good/clean SMT images, structural pose defects, and solder texture defects, from a board USD. Turns one matched prompt into one validated `cdf.CDFJob` build and its compiled JobOrder payload; it never executes a render itself. Requires a caller-supplied board USD and output root, asks for either when missing from an interactive request, and resolves optional details with fixed, documented defaults.

3.7kApache-2.0

always on

117 tokname + description

once used

8,876 tokSKILL.md body

bundled files

874 KB

repo stars

3.7kGitHub

Install the Cdf Simulation skill

Skills CLI (Claude Code, Codex, Cursor and others)

npx skills add https://github.com/NVIDIA/skills --skill cdf-simulation

Claude Code, by hand (all projects)

git clone --depth 1 https://github.com/NVIDIA/skills.git /tmp/skills
mkdir -p ~/.claude/skills
cp -R /tmp/skills/skills/cdf-simulation ~/.claude/skills/cdf-simulation

For one project only, copy the folder into .claude/skills/ in that project instead. The agent picks it up when a task matches its description.

What it costs your context

Agent Skills load in three steps. Tokens counted with the o200k tokenizer; your model's count will differ a little.

WhenWhat loadsCost
Every sessionName and description117 tok
When the agent uses itThe SKILL.md instructions8,876 tok
Only if opened8 bundled files (74 KB)varies

Until it is used, cdf-simulation costs about 12× less than the median MCP server we measured (1,363 tokens on every turn). Installing all 150 skills from NVIDIA/skills would load 20,796 tokens of descriptions. Skills vs MCP study

Checks

  • The instructions are over 5,000 tokens, the Agent Skills specification's guideline for SKILL.md.
  • The instructions are over 500 lines; the specification suggests moving detail into reference files.

Checked 2026-10-22 · method

What's inside

The headings of its SKILL.md. Read the full file on GitHub.

  • cdf-simulation
  • Catalog coverage
  • Reference flows
  • Fixed defaults
  • Payload contract
  • Instructions
  • Inputs
  • Workflow
  • 1. Match the prompt to a catalog row
  • 2. Resolve inputs deterministically
  • 3. Build the CDFJob script
  • Pitfall: classfilter is not componenttypes
  • 4. Validate, then return -- do not execute
  • Examples
  • When to refuse
  • Guardrails
  • Limitations
  • Troubleshooting

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