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Agent Skill

Doca Pcc Ztr Rttcc Algo skill

doca-pcc-ztr-rttcc-algoNVIDIA/skillsskills/doca-pcc-ztr-rttcc-algo/SKILL.md

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 algorithm through the host library belongs to doca-pcc; the doca_spcx_cc command line to doca-spcx-cc. Covers picking a variant (vanilla / PM / RX-rate / multipath / window-probeless) at DPACC build time, tuning host-set parameters, and DOCA_PCC_DEV_STATUS_FAIL from the algorithm. Refuse and route elsewhere for writing a custom PCC algorithm from scratch, read-only PCC counter inspection, or firmware-only pre-Programmable PCC.

3.7kApache-2.0

always on

240 tokname + description

once used

4,386 tokSKILL.md body

bundled files

779 KB

repo stars

3.7kGitHub

Install the Doca Pcc Ztr Rttcc Algo skill

Skills CLI (Claude Code, Codex, Cursor and others)

npx skills add https://github.com/NVIDIA/skills --skill doca-pcc-ztr-rttcc-algo

Claude Code, by hand (all projects)

git clone --depth 1 https://github.com/NVIDIA/skills.git /tmp/skills
mkdir -p ~/.claude/skills
cp -R /tmp/skills/skills/doca-pcc-ztr-rttcc-algo ~/.claude/skills/doca-pcc-ztr-rttcc-algo

For one project only, copy the folder into .claude/skills/ in that project instead. The agent picks it up when a task matches its description.

What it costs your context

Agent Skills load in three steps. Tokens counted with the o200k tokenizer; your model's count will differ a little.

WhenWhat loadsCost
Every sessionName and description240 tok
When the agent uses itThe SKILL.md instructions4,386 tok
Only if opened7 bundled files (79 KB)varies

Until it is used, doca-pcc-ztr-rttcc-algo costs about 5.7× less than the median MCP server we measured (1,363 tokens on every turn). Installing all 150 skills from NVIDIA/skills would load 20,796 tokens of descriptions. Skills vs MCP study

Checks

Our checks found nothing to flag: it follows the Agent Skills specification's naming and size guidelines and doesn't pipe downloads into a shell.

Checked 2026-10-22 · method

What's inside

The headings of its SKILL.md. Read the full file on GitHub.

  • DOCA PCC ZTR RTTCC Algorithm
  • Examples
  • Instructions
  • Example questions this skill answers well
  • Audience
  • When to load this skill
  • What this skill provides
  • What this skill deliberately does not ship
  • Loading order
  • Related skills

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