Borrowing it
Nothing to install: this file belongs to brevdev/workshop-build-an-agent. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/brevdev/workshop-build-an-agent/main/.agents/skills/nvwb/SKILL.mdgit clone --depth 1 https://github.com/brevdev/workshop-build-an-agentWrote 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.
[](https://agentmods.dev/skills/brevdev/workshop-build-an-agent/nvwb)<a href="https://agentmods.dev/skills/brevdev/workshop-build-an-agent/nvwb"><img src="https://agentmods.dev/badge/skills/brevdev/workshop-build-an-agent/nvwb/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.
<a href="https://agentmods.dev/skills/brevdev/workshop-build-an-agent/nvwb"><img src="https://agentmods.dev/badge/skills/brevdev/workshop-build-an-agent/nvwb.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector pass
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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00052 | $0.01044 |
| Opus 5.5 | $0.00021 | $0.00418 |
| Sonnet 5.5 | $0.00010 | $0.00209 |
| Haiku 4.5 | $0.00005 | $0.00104 |
Grade A, and why
nvwb 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 1mo 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.
How it starts
The opening of the file, as written. The whole thing — 91 lines — stays where its author put it; the contents beside it link to each section on GitHub.
NVIDIA AI Workbench — Local Machine (Control Plane)
NVIDIA AI Workbench is a lightweight, containerized development platform for GPU-accelerated AI/ML workflows. Every project is a Git repo with a .project/spec.yaml that defines the container environment. It supports Docker and Podman as container runtimes.
The nvwb CLI always runs on the local machine — the user's laptop or desktop. From there it manages contexts, which may be local (container on the same machine) or remote (container on a server or cloud instance accessed via SSH). Codex using this skill is on the local machine.
The user wants help with: $ARGUMENTS
Core Concepts
- Contexts — Locations/machines where projects run (local, remote SSH, Brev cloud)
- Projects — Git repos with container configuration (
.project/spec.yaml) - Applications — Services inside the container (JupyterLab, VS Code, custom webapps/processes)
- Environment Variables — Runtime values set via CLI; sensitive ones (
--is-sensitive) are masked in output. Values are never committed to Git. Projects may declare required secret variable names inspec.yamlunderexecution.secrets.
Current State Detection
Before taking action, check the current state:
nvwb list contexts # What locations are configured?
nvwb status # Is a project open? Is the container running?
nvwb list projects # What projects exist in the active context?
Build vs Runtime Isolation
Build-time (changes require nvwb build):
apt.txt— system packagesrequirements.txt— pip packagespreBuild.bash/postBuild.bash— custom build scripts- Package manager entries in
spec.yaml
Runtime (changes require container restart: nvwb close + nvwb open):
variables.env— environment variables- Mount configuration changes
- App definitions in
spec.yaml
No action needed:
- Code in layout directories (code/, data/, models/) — live-mounted at
/project/
Key Environment Variables
What ships with it
6 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.
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.
- 1mo ago First seen · 91 lines · 52 tokens per session scan A 84251a1067d9
nvwb is a skill published in the GitHub repository brevdev/workshop-build-an-agent (151 stars, last pushed 16d ago), licensed Apache-2.0. It adds 52 tokens to every session and 1,044 once invoked, about $0.0002 per session on Opus 5.5. 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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