doca-pcc-ztr-rttcc-algo SKILL.md skillA
doca-pcc-ztr-rttcc-algo 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-pcc-ztr-rttcc-algo@git:20261014.bbb601aPins git:20261014.bbb601a 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-pcc-ztr-rttcc-algo/SKILL.md- Versions recorded
- 2
- Latest version
- git:20261014.bbb601a, committed Oct 14, 2026
- First version recorded
- Jul 17, 2026
- Size
- 18,834 bytes
- Repository stars
- 3,871
- License
- Apache-2.0
DOCA-shipped Zero-Touch RoCE RTT congestion control (ZTR RTTCC) reference algorithm on a BlueField-3 DPA: deploy, tune and evaluate doca_pcc_dev_ztr_rttcc_algo through the shipped DOCA PCC sample. Trigger on "my RoCE-v2 flows aren't being throttled", "PCC sample isn't dispatching to my algo", "set-params returns fail", "algorithm loaded but counters are flat", "how do I pick the multipath PCC variant", or "do I need a custom CC algorithm on BF3", even without naming ZTR RTTCC. Your own…
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 PCC ZTR RTTCC Algorithm ## Examples - **"How do I pick the multipath PCC variant?"** — this is in scope. Pick the ZTR RTTCC variant at DPACC build time; do not invent a custom algorithm. - **"Algorithm loaded but counters are flat."** — confirm live RoCE-v2 traffic and host-set params before rewriting the sample. ## Instructions Follow Loading order below. Open the tasks companion for configure / tune / debug. Open the capabilities companion for variants and the FAIL status. Do not open every companion file. **Where to start:** This skill assumes DOCA is already installed, the user's BlueField has a DPA processor that the host can see through DOCA (a BlueField-3-generation device per the README), the BlueField firmware has the custom-PCC slot enabled, the DPACC compiler is installed at a matched version per the DOCA Compatibility Policy, and the user is doing **hands-on deployment of the DOCA-shipped ZTR RTTCC reference algorithm** on a BlueField port that already carries RoCE-v2 traffic — i.e. either deploying it as the no-config-required baseline, tuning its documented parameters, or evaluating it against a custom algorithm the …
Read the whole file at its exact version.
How to install
mdr add nvidia/skills/doca-pcc-ztr-rttcc-algo@sha256:83947b86287fbb1aThe line at the top of this page pins the label git:20261014.bbb601a, 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_xwnihfa24r7ceqsa)
3 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 2 versions of this file, between Jul 17, 2026 and Oct 14, 2026, about one every 89 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20261014.bbb601a latest | 2026-10-14 | bbb601a | 18,834 B | A | view · diff |
| git:20260717.f64fa0e | 2026-07-17 | f64fa0e | 19,094 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 (18834 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_xwnihfa24r7ceqsa GET https://markdownregistry.com/api/v1/resolve?ref=nvidia/skills/doca-pcc-ztr-rttcc-algo GET https://markdownregistry.com/api/v1/blob/83947b86287fbb1ad2a8f9bcb73a0e676819453b7a4950d2bc78567e53b8d78d
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.