doca-spcx-cc SKILL.md skillA
doca-spcx-cc from nvidia/skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add nvidia/skills/doca-spcx-cc@git:20261028.3d06e7ePins git:20261028.3d06e7e in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- nvidia/skills
- Path
skills/doca-spcx-cc/SKILL.md- Versions recorded
- 4
- Latest version
- git:20261028.3d06e7e, committed Oct 28, 2026
- First version recorded
- Jul 17, 2026
- Size
- 17,721 bytes
- Repository stars
- 3,871
- License
- Apache-2.0
Use this skill when the user is invoking `doca_spcx_cc` (the host-side CLI under /opt/mellanox/doca/tools/) to load, parameterize, start, observe, or stop an SPC-X congestion-control algorithm on a BlueField with a DPA processor against a live RDMA / RoCE fabric, or picking SPCX vs the established `doca-pcc` surface. Trigger even when the user does not say "DOCA SPCX" or "doca_spcx_cc" — typical implicit phrasings include "I want to write a custom RTT-based CC algorithm for my RoCE fabric…
Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.
What the file says
# DOCA SPCX Congestion-Control Tool ## Examples - **"Should I use SPCX or `doca-pcc` for a custom CC algorithm?"** — this is in scope. Walk the decision tree before loading anything on a live fabric. - **"SPCX loaded but throughput did not change."** — confirm the algorithm is in charge before retuning parameters. ## Instructions Follow Loading order below. Open the tasks companion for configure / run. Open the capabilities companion for the SPCX-vs-PCC tradeoff and safety. Do not open every companion file. **Where to start:** This is a tool skill for invoking `doca_spcx_cc` — the host-side CLI that exercises an SPC-X congestion-control algorithm on a live RDMA / RoCE fabric driven by a BlueField with a DPA processor. Open the tasks companion and start at `## configure` for the SPCX-vs-PCC-vs-factory-firmware decision tree (load-bearing gate before any code), the role decision (RP / NP), the DPA-side algorithm authoring vs consumption split, and the live-link / contention precondition. Open the capabilities companion when the question is *what does SPCX let me express that `doca-pcc` does not*, *what is the SPCX-vs-PCC tradeoff*, *what runtime metrics …
Read the whole file at its exact version.
How to install
mdr add nvidia/skills/doca-spcx-cc@sha256:89a1468da5e03b45The line at the top of this page pins the label git:20261028.3d06e7e, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.
[](https://markdownregistry.com/a/art_sypm2k6ko246wgks)
3 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 4 versions of this file, between Jul 17, 2026 and Oct 28, 2026, about one every 34 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20261028.3d06e7e latest | 2026-10-28 | 3d06e7e | 17,721 B | A | view · diff |
| git:20261022.a4cf47e | 2026-10-22 | a4cf47e | 18,029 B | A | view · diff |
| git:20261014.bbb601a | 2026-10-14 | bbb601a | 18,943 B | A | view · diff |
| git:20260717.f64fa0e | 2026-07-17 | f64fa0e | 19,874 B | A | view |
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (17721 bytes)
- pass: No zero-width or bidi control characters
- pass: No instruction hidden inside an HTML comment
- pass: No link to an exfiltration or paste host
- pass: No credential-shaped string
- pass: No instruction to send local credentials anywhere
- pass: No text hidden with inline styles
- pass: No prompt-injection phrasing
- pass: No curl or wget piped into a shell
- pass: No recursive delete of root, home or parent
- pass: No instruction to read or print local credentials
- pass: No base64 blob over 200 characters
- pass: No link to a raw IP address
- pass: No script tag
Source
nvidia/skills · 3,871 stars · license Apache-2.0 · pushed 2026-11-05 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_sypm2k6ko246wgks GET https://markdownregistry.com/api/v1/resolve?ref=nvidia/skills/doca-spcx-cc GET https://markdownregistry.com/api/v1/blob/89a1468da5e03b457377f28b3d129da42f23bfa7475ca921cdd9cacdf8dbcdcf
Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.
Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.