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 skills add jordanhubbard/agentos --skill sddf-netgit clone --depth 1 https://github.com/jordanhubbard/agentosWrote 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/jordanhubbard/agentos/sddf-net)<a href="https://agentmods.dev/skills/jordanhubbard/agentos/sddf-net"><img src="https://agentmods.dev/badge/skills/jordanhubbard/agentos/sddf-net/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/jordanhubbard/agentos/sddf-net"><img src="https://agentmods.dev/badge/skills/jordanhubbard/agentos/sddf-net.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 | $0.00000 | $0.00197 |
| Opus 5 | $0.00000 | $0.00098 |
| Sonnet 5 | $0.00000 | $0.00039 |
| Haiku 4.5 | $0.00000 | $0.00020 |
Grade A, and why
sddf-net 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 5d 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.
What it actually says
sDDF net
Network I/O in agentOS is sDDF-shaped: driver owns the NIC (or QEMU virtio-net
as a stand-in), net_virt muxes, clients hold queue caps.
Invariants
- NIC MMIO/IRQ belong to the driver PD only.
- Clients (VMM virtio backends, native stacks) use free/active queue pairs.
- Buffers are offsets into a data region, not raw pointers across PDs.
- Guests do not DMA to the host NIC. The VMM emulates virtio-net.
Forbidden
MSG_NET_SENDof a full frame through IPC registers as the data path.- Mapping QEMU virtio-net MMIO into a guest.
- Per-guest NICs that split QEMU buses instead of sharing
net_virt.
Helper
python3 skills/sddf-net/scripts/queue_layout.py
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.
- 5d ago First seen · 24 lines · 0 tokens per session scan A a441a8d67d2f
sddf-net is a skill published in the GitHub repository jordanhubbard/agentos (29 stars, last pushed today), licensed BSD-2-Clause. It costs nothing until one of its globs matches a file; then it loads 197 tokens. 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 2026-09-04.
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