Official agent skill

Nemo Retriever

by NVIDIA in NVIDIA/skills

A skill your agent uses when searching, extracting, ingesting, or querying a document collection with the NeMo Retriever 26.8.1 CLI, including local LanceDB indexes and deployed Retriever services.

OfficialApache-2.0Auto-check passedDocuments & Office

Install Nemo Retriever

skills CLI
$ npx skills add NVIDIA/skills --skill nemo-retriever -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI
$ gh skill install NVIDIA/skills nemo-retriever --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy
$ git clone --depth 1 https://github.com/NVIDIA/skills.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/nemo-retriever .claude/skills/nemo-retriever && rm -rf skills-src

Use ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.

Claude Code skills documentation · loads skills from .claude/skills/

Facts

Skill name
nemo-retriever
GitHub stars
3.5k
Token cost
~583 tokens
SKILL.md length
146 words
Files
5
Skills in repo
380
Repo updated
First seen
Licence
Apache-2.0

At a glance

A skill your agent uses when searching, extracting, ingesting, or querying a document collection with the NeMo Retriever 26.8.1 CLI, including local LanceDB indexes and deployed Retriever services.

  • Querying a document collection with the NeMo Retriever 26.8.1 CLI
  • SKILL.md covers Install only when missing, Local workflow, Service workflow and Rules
  • Calls uv; needs NEMO_RETRIEVER_API_TOKEN
  • Including local LanceDB indexes and deployed Retriever services

What it does

Nemo Retriever is an agent skill from NVIDIA/skills, published by the product's own GitHub organization. Use when searching, extracting, ingesting, or querying a document collection with the NeMo Retriever 26.8.1 CLI, including local LanceDB indexes and deployed Retriever services. Use for PDFs, images, Office files, HTML, text, audio, and video; not for editing documents or web search.

Its SKILL.md is about 580 tokens, which your agent loads only when the skill is triggered. The skill folder holds 5 other files (for example `BENCHMARK.md`, `evals/evals.json` and `skill-card.md`).

It sits in Documents & Office, covering Web search. The repository describes itself as: Agent Skills for NVIDIA products — install into Claude Code, Codex, and other coding agents to run Physical AI, robotics, simulation, CUDA, and RAG workflows end to end. The licence is Apache-2.0.

When your agent uses it

  • Querying a document collection with the NeMo Retriever 26.8.1 CLI
  • Including local LanceDB indexes and deployed Retriever services
  • Not for editing documents

Example prompts

  • “/nemo-retriever”

Requirements

  • Python 3
  • A credential in NEMO_RETRIEVER_API_TOKEN

What it can do on your machine

Read from SKILL.md and the folder at commit 67a13c0. It shows what the files ask for, not the result of running them.

  • Tool permissions

    Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.

    From allowed-tools in the SKILL.md frontmatter.

  • Runs code

    Shell commands in SKILL.md call:

    • uv

    From the folder's file list and the shell code blocks in SKILL.md.

  • Network

    No URLs in SKILL.md. Its commands use uv, which can reach the network depending on how they are called.

    From URLs in SKILL.md, links to its own repository left out.

  • Credentials

    Names these keys or tokens, usually read from environment variables:

    • NEMO_RETRIEVER_API_TOKEN

    From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

Nemo Retriever loads about 583 tokens when it runs. Until then it costs about 75 tokens; SKILL.md has 146 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~75
When it runs · the whole SKILL.md, loaded when a task matches
~583

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Auto-check passed

The automated check found no risky patterns in SKILL.md.

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.

SKILL.md

The full file from NVIDIA/skills at commit 67a13c0, republished under its Apache-2.0 licence (© NVIDIA). 146 words, ~583 tokens.

Download SKILL.mdSave it as .claude/skills/nemo-retriever/SKILL.md (or your agent's skills folder). This skill also uses 4 other files; get the full folder from GitHub.
name
nemo-retriever
description
Use when searching, extracting, ingesting, or querying a document collection with the NeMo Retriever 26.8.1 CLI, including local LanceDB indexes and deployed Retriever services. Use for PDFs, images, Office files, HTML, text, audio, and video; not for editing documents or web search.
license
Apache-2.0

NeMo Retriever

Use the retriever CLI. Prefer it over hand-built retrieval code.

Install only when missing

Create a project-local Python environment:

bash
uv venv .venv --python 3.12
export PATH="$PWD/.venv/bin:$PATH"

Install the package variant required by the workflow:

bash
# Remote NIM or service client
uv pip install --python .venv/bin/python "nemo-retriever==26.8.1"

# Local GPU ingestion
uv pip install --python .venv/bin/python "nemo-retriever[local]==26.8.1"

# Local service using Hugging Face models
uv pip install --python .venv/bin/python \
  "nemo-retriever[service,local]==26.8.1"

# Local audio or video ingestion
uv pip install --python .venv/bin/python \
  "nemo-retriever[local,multimedia]==26.8.1"

Do not clone NeMo Retriever or install from a Git URL. If retriever is already on PATH, use that installation.

Local workflow

Build a local index:

bash
retriever ingest <file-or-directory> \
  --lancedb-uri lancedb --table-name nemo-retriever

Query it:

bash
retriever query "<question>" \
  --lancedb-uri lancedb --table-name nemo-retriever \
  --top-k 5 --format evidence

Use retriever ingest batch only for an explicitly requested Ray batch run.

Service workflow

Use these forms for an already deployed Retriever service:

bash
retriever ingest service <file-or-directory> \
  --service-url "$RETRIEVER_SERVICE_URL"

retriever query service "<question>" \
  --service-url "$RETRIEVER_SERVICE_URL" \
  --top-k 5 --format evidence

Set NEMO_RETRIEVER_API_TOKEN when the service requires Bearer authentication. Do not pass local LanceDB flags to the service commands.

Rules

  • Use the existing index or service when one is provided; do not rebuild it.
  • Use retriever ingest --help, retriever query --help, or the relevant batch / service help for options not shown here.
  • Answer only from retrieved evidence; preserve source and page metadata when the task requests citations.

© NVIDIA, Apache-2.0. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file

Files

SKILL.md and 4 other files in skills/nemo-retriever of NVIDIA/skills.

  • SKILL.md
  • BENCHMARK.md
  • evals/evals.json
  • skill-card.md
  • skill.oms.sig

Open the folder on GitHubat commit 67a13c0

Compare with similar skills

Nemo Retriever next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.

Nemo Retriever compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Nemo Retriever this skillNVIDIA/skills3.5k—~583Automated safety check: PassApache-2.0
Paper Submissionbrycewang-stanford/Auto-Empirical-Research-Skills4.5k—~3.4kAutomated safety check: NotesCustom licence
Prioritize Reference FilesHKUDS/OpenSpace7.7k—~1.3kAutomated safety check: PassMIT
Jev SEOAgriciDaniel/jev-seo527—~2.5kAutomated safety check: NotesMIT
Harness Useautonomous-ai/Physical-AI-Operating-System381—~8kAutomated safety check: PassApache-2.0
IngestPrismer-AI/PrismerCloud1.6k—~934Automated safety check: PassMIT

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Questions about Nemo Retriever

What does Nemo Retriever do?

A skill your agent uses when searching, extracting, ingesting, or querying a document collection with the NeMo Retriever 26.8.1 CLI, including local LanceDB indexes and deployed Retriever services. Nemo Retriever is an agent skill from NVIDIA/skills, published by the product's own GitHub organization.1 CLI, including local LanceDB indexes and deployed Retriever services.

When should I use Nemo Retriever?

Nemo Retriever fits situations like: querying a document collection with the NeMo Retriever 26.8.1 CLI; including local LanceDB indexes and deployed Retriever services; not for editing documents.

How do I install Nemo Retriever in Claude Code?

Run `npx skills add NVIDIA/skills --skill nemo-retriever -a claude-code`. Or copy the skill folder (skills/nemo-retriever in NVIDIA/skills) into .claude/skills/nemo-retriever in your project. Claude Code loads it when a task matches its description.

How do I install Nemo Retriever in Codex?

Run `npx skills add NVIDIA/skills --skill nemo-retriever -a codex`. Or copy the skill folder (skills/nemo-retriever in NVIDIA/skills) into .agents/skills/nemo-retriever in your project. Codex loads it when a task matches its description.

Can I use Nemo Retriever in Cursor, Gemini CLI or GitHub Copilot?

Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add NVIDIA/skills --skill nemo-retriever -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/nemo-retriever, .gemini/skills/nemo-retriever, .github/skills/nemo-retriever and .opencode/skills/nemo-retriever in your project.

What does Nemo Retriever need to run?

Going by SKILL.md and its folder, Nemo Retriever needs the command-line tools its instructions call (uv) and credentials named NEMO_RETRIEVER_API_TOKEN. Our summary lists: Python 3; A credential in NEMO_RETRIEVER_API_TOKEN.

Does Nemo Retriever access the network?

SKILL.md contains no URLs. Its commands use uv, which can reach the network depending on how they are called. This is read from the text; nothing was executed.

Is Nemo Retriever safe to install?

Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.

What licence does Nemo Retriever use?

Nemo Retriever is published under the Apache-2.0 licence (declared in SKILL.md). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does Nemo Retriever use?

About 583 tokens (SKILL.md is roughly 2.3k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.

What are the alternatives to Nemo Retriever?

Skills that share tags, products or a category with Nemo Retriever: Paper Submission (brycewang-stanford/Auto-Empirical-Research-Skills, 4.5k stars), Prioritize Reference Files (HKUDS/OpenSpace, 7.7k stars), Jev SEO (AgriciDaniel/jev-seo, 527 stars) and Harness Use (autonomous-ai/Physical-AI-Operating-System, 381 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Nemo Retriever?

NVIDIA (a GitHub organization, an official publisher) maintains it in NVIDIA/skills, which has 3,539 GitHub stars. The repository holds 380 skills in this directory. The repository was last updated on October 7, 2026.

Source: NVIDIA/skills on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.