doca-pcc

doca-pcc is a skill for Claude Code, Codex from NVIDIA/skills. It costs 240 tokens per session (4,449 once invoked), scanned A, original, Apache-2.0.

A programming guide for loading and tuning a custom programmable congestion-control algorithm on a BlueField DPU. Congestion control adjusts network sending behavior when an RDMA network becomes overloaded.

In plain words
What is it for?
Use it to create per-port PCC contexts, load a DPA-compiled algorithm, configure it, and inspect its supported capabilities.
Why use it?
It provides the host-side steps for attaching a custom algorithm to a RoCE port and setting its parameters.

Skill for Claude CodeCodex ✓ vendor

Written for no agent in particular: nothing here depends on one.

Good fit Use it to create per-port PCC contexts, load a DPA-compiled algorithm, configure it, and inspect its supported capabilities.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/nvidia/skills/doca-pcc
About the project

NVIDIA/skills is a catalogue of portable instruction sets that teach coding agents how to use NVIDIA software for robotics, simulation, CUDA, retrieval-augmented generation, and related workflows. Developers install these skills in agents such as Claude Code or Codex, while the catalogue mirrors skills maintained in separate NVIDIA product repositories.

NVIDIA/skills · 3,873 stars · on GitHub · docs.nvidia.com

Install

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.

Any agent
npx skills add NVIDIA/skills --skill doca-pcc
Clone the repo
git clone --depth 1 https://github.com/NVIDIA/skills

Made for: Claude Code, Codex.

Wrote 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.

agentmods badge for doca-pcc

README.md
[![agentmods](https://agentmods.dev/badge/skills/nvidia/skills/doca-pcc/github.svg)](https://agentmods.dev/skills/nvidia/skills/doca-pcc)
Your own site
<a href="https://agentmods.dev/skills/nvidia/skills/doca-pcc"><img src="https://agentmods.dev/badge/skills/nvidia/skills/doca-pcc/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.

agentmods 80×15 button for doca-pcc

Your own site · 80×15
<a href="https://agentmods.dev/skills/nvidia/skills/doca-pcc"><img src="https://agentmods.dev/badge/skills/nvidia/skills/doca-pcc.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 240 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 4,449 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe. Third-party audits
  • NVIDIA SkillSpector pass 7 Sept 2026
How audits are shown
Origin original No closer match found in the catalogue.
Token cost

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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00240 $0.04449
Opus 5.5 $0.00096 $0.01780
Sonnet 5.5 $0.00048 $0.00890
Haiku 4.5 $0.00024 $0.00445

Measured 8d ago against content hash 0de942d6c9d0, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

doca-pcc 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 8d 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.

skills/doca-pcc/SKILL.md · 368 lines

How it starts

The opening of the file, as written. The whole thing — 368 lines — stays where its author put it; the contents beside it link to each section on GitHub.

DOCA PCC

Examples

  • "Loading my own congestion control onto a BF port." — this is in scope. Stay on host-side doca_pcc + a DPACC-built doca_pcc_app; do not rewrite the algorithm body here.
  • "DOCA_ERROR_NOT_PERMITTED on algorithm load." — check the firmware custom-PCC slot and DPA exposure before changing the load call.

Instructions

Follow Loading order below. Open the tasks companion for configure / load / debug. Open the capabilities companion for the triple-axis cap query. 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, the BlueField firmware has the custom-PCC slot enabled, and the user is doing hands-on custom PCC work from the host side — i.e. using doca-pcc to load a DPA-side congestion control algorithm onto the BlueField, attach it to a port handling RDMA / RoCE traffic, and parameterize it from the host. Open the tasks companion if the user wants to do something (configure / build / modify / run / test / debug); open the capabilities companion when the question is what can the host-side PCC API express on this version + this BlueField generation + this firmware. If the user has not installed DOCA yet, route to doca-setup/SKILL.md first; if the user is asking how to write the DPA-side congestion-control algorithm itself (the code that runs on the DPA processor, compiled by dpacc), that is a different scope — route via doca-public-knowledge-map/SKILL.md to the public DOCA PCC programming guide and to doca-dpa/SKILL.md for the host-side DPA lifecycle this skill builds on. If the user only wants to inspect PCC counters at runtime without writing a custom algorithm, that is the pcc_counters CLI tool — route via doca-public-knowledge-map ## DOCA tools (doca-public-knowledge-map/SKILL.md#doca-tools); this skill is for custom algorithms only.

Example questions this skill answers well

Read the full file on GitHub · 368 lines

Files

What ships with it

7 files 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.

Changes

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.

  1. 8d ago Changed 0de942d6c9d0
  2. 15d ago Changed · -24 lines 259b8daf1017
  3. 23d ago Changed · +20 lines f5e208984094
  4. 2mo ago First seen · 372 lines · 240 tokens per session scan A e74ce6abe8e5

Subscribe to this mod's changes

doca-pcc is a skill published in the GitHub repository NVIDIA/skills (3,873 stars, last pushed yesterday), licensed Apache-2.0. It adds 240 tokens to every session and 4,449 once invoked, about $0.0010 per session on Opus 5.5. 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 2026-09-03.

Related

doca-pcc compared with skills from other repositories

doca-pcc next to 6 skills from other repositories
ModTypeStarsLast pushLicenceScanTokensWorks with
doca-pccNVIDIA/skillsSkill3.9kyesterdayApache-2.0A240Claude Code, Codex
desktop-and-local-ipc-securitymakifbaysal/tasktrooperSkill12016d agoApache-2.0A78Claude Code, Codex
spark-environment-setupwshobson/agentsSkill42kyesterdayMITA76Claude Code
spark-training-gotchaswshobson/agentsSkill42kyesterdayMITA63Claude Code
technical-troubleshootingstrands-agents/samplesSkill925yesterdayApache-2.0A38Claude Code
screen-mockup-htmlmakifbaysal/tasktrooperSkill12016d agoApache-2.0A63Claude Code, Codex
responsive-layoutmakifbaysal/tasktrooperSkill12016d agoApache-2.0A35Claude Code, Codex