Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
npx agentmods add skills/nvidia/openshell/build-openshell-mxc-windowsnpx skills add NVIDIA/OpenShell --skill build-openshell-mxc-windowsgit clone --depth 1 https://github.com/NVIDIA/OpenShellWhat 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 | $0.00085 | $0.04329 |
| Opus 5 | $0.00043 | $0.02165 |
| Sonnet 5 | $0.00017 | $0.00866 |
| Haiku 4.5 | $0.00009 | $0.00433 |
Grade A, and why
build-openshell-mxc-windows 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 today.
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 — 342 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Build OpenShell-MXC for Windows
This skill maintains the existing native Windows MSVC build lane in the
OpenShell repository. The Windows lane is already present in main; do not
treat this skill as a first-time porting recipe unless the user explicitly asks
for a new fork or a from-scratch bring-up.
The lane is build-only. It validates that OpenShell can compile and test on Windows MSVC for the supported deliverables:
openshell-gateway.exeopenshell.exe
It intentionally does not make Windows a Docker, Kubernetes, Podman, or VM runtime host.
Current Repository Shape
The Windows build lane is implemented by these tracked files:
| Path | Purpose |
|---|---|
tasks/windows.toml |
Mise task entry points for windows:* commands. |
tasks/rust.toml, tasks/test.toml, and tasks/markdown.toml |
Windows routing for compiler-bearing checks, explicit Unix-only test skips, and Markdown dependency setup. |
tasks/scripts/windows-msvc.ps1 |
PowerShell wrapper that enters the Visual Studio developer environment and invokes Cargo. |
.github/workflows/windows-msvc.yml |
Manually dispatched GitHub Actions jobs with architecture-specific Rust caches for x64 and future ARM64 Windows validation. |
architecture/windows-msvc-build.md |
Design notes and validation contract. |
.agents/skills/build-openshell-mxc-windows/ |
This skill and companion reference material. |
Use the code that is already in the repo. Do not generate a parallel Windows build system, duplicate the wrapper, or add repository automation that the user did not request.
Scope
In scope:
- Refreshing a local checkout to the latest upstream GitHub
main. - Maintaining
tasks/windows.tomlandtasks/scripts/windows-msvc.ps1. - Running x64 and ARM64 MSVC checks.
- Building x64 and ARM64 release binaries for
openshell-gatewayandopenshell. - Running workspace tests on a native x64 or ARM64 host.
- Running focused unsupported-driver contract tests.
- Reporting test counts, skipped/gated areas, warnings, artifacts, and logs.
- Keeping Linux and macOS build paths unchanged.
- Keeping unsupported Windows compute drivers explicit and testable.
What ships with it
1 file 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.
- today Changed 8395c27517ab
- 2d ago First seen · 342 lines · 85 tokens per session scan A f31dc04f593a
build-openshell-mxc-windows is a skill published in the GitHub repository NVIDIA/OpenShell (8,475 stars, last pushed today), licensed Apache-2.0. It adds 85 tokens to every session and 4,329 once invoked, about $0.0004 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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