create-model-verification-card

create-model-verification-card is a skill for Claude Code, Codex from NVIDIA-NeMo/Megatron-Bridge. It costs 120 tokens per session (11,117 once invoked), scanned A, original, Apache-2.0.

A guide to creating short verification cards for models supported by Megatron Bridge, a system for training and converting large language models. Each card records model facts and tested commands for workflows such as inference, training, checkpoint recovery, and export.

In plain words
What is it for?
Use it to add or audit a model card, record which workflows were verified, and validate the card with the repository's checking scripts.
Why use it?
It gives agents a compact, reliable reference instead of making them reconstruct setup details from logs or unrelated model examples. It also helps keep verification claims tied to actual checks.

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 ./scripts/training/train.sh --nodes 2 --gpus-per-node 4.

Good fit Use it to add or audit a model card, record which workflows were verified, and validate the card with the repository's checking scripts.

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/NVIDIA-NeMo/Megatron-Bridge
agentmods
npx agentmods add skills/nvidia-nemo/megatron-bridge/create-model-verification-card

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 create-model-verification-card

README.md
[![agentmods](https://agentmods.dev/badge/skills/nvidia-nemo/megatron-bridge/create-model-verification-card.svg)](https://agentmods.dev/skills/nvidia-nemo/megatron-bridge/create-model-verification-card)
Your own site
<a href="https://agentmods.dev/skills/nvidia-nemo/megatron-bridge/create-model-verification-card"><img src="https://agentmods.dev/badge/skills/nvidia-nemo/megatron-bridge/create-model-verification-card.svg" alt="Measured on agentmods" height="20"></a>
Per session 120 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 11,117 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 $0.00120 $0.11117
Opus 5 $0.00060 $0.05559
Sonnet 5 $0.00024 $0.02223
Haiku 4.5 $0.00012 $0.01112

Measured 3d ago against content hash 5c9ba2533cc3, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-08, from the pricing page.

Security

Grade A, and why

create-model-verification-card 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.

The scan reads SKILL.md. This mod also ships 2 executable files (scripts/validate_card.py, scripts/verify_hf_inference.py), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

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/create-model-verification-card/SKILL.md · 918 lines

How it starts

The opening of the file, as written. The whole thing — 918 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Create Model Verification Card

Create examples/model_verification_cards/<model-slug>/card.yaml from public model facts and verified commands. Keep the card small enough for an agent to scan without interpreting logs or reconstructing the execution environment.

Use the repository resources

Treat verification scripts, validators, and launchers as shared infrastructure. Do not modify them merely to make one model card pass. Any such change requires a clear, documented, reusable reason: identify the existing behavior that is insufficient, the affected public workflows or models, why an existing maintained path cannot be used, and add focused backward-compatible tests. Record the justification in the PR description or commit. If the need is model-specific or the reason is not clear, leave the affected verification item unverified instead of adding a card-only workaround.

Do not add a README, evidence blobs, log excerpts, runtime setup, or scheduler metadata to the skill or card.

Workflow

1. Pull facts before drafting

Read the model implementation, public HF config, conversion bridge, recipes, tests, examples, and the exact revision being verified. Determine which modes exist; do not infer support from a family name or another model size.

Record the public HF model name in commands, its immutable revision in model.hf_revision, and the minimum supported Transformers version in model.min_transformers_version. Do not introduce an HF snapshot path.

Record only two execution-environment facts: the public base container identifier and the exact Bridge commit used for verification. Put them in verification_environment.base_container and verification_environment.bridge_commit. If the run mounted a checkout over the container, record the mounted checkout commit. Never substitute a private image path for the public base container identifier.

Read the full file on GitHub · 918 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 Changed · +33 lines 5c9ba2533cc3
  2. 8d ago First seen · 885 lines · 120 tokens per session scan A 036f9dee4745

Subscribe to this mod's changes

create-model-verification-card is a skill published in the GitHub repository NVIDIA-NeMo/Megatron-Bridge (904 stars, last pushed today), licensed Apache-2.0. It adds 120 tokens to every session and 11,117 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 2026-08-30.

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