Astropy
zLanqing/codex-claude-academic-skills
Comprehensive Python library for astronomy and astrophysics.
Fetch weather/climate data via Earth2Studio data sources for specific variables and times.
$ npx skills add NVIDIA/skills --skill earth2studio-data-fetch -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install NVIDIA/skills earth2studio-data-fetch --agent claude-codeProject scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).
$ git clone --depth 1 https://github.com/NVIDIA/skills.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/earth2studio-data-fetch .claude/skills/earth2studio-data-fetch && rm -rf skills-srcUse ~/.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/
Install the "earth2studio-data-fetch" agent skill from https://github.com/NVIDIA/skills/tree/main/skills/earth2studio-data-fetch into .claude/skills/earth2studio-data-fetch/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "earth2studio-data-fetch", then confirm the skill loads.Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$skill-installer install https://github.com/NVIDIA/skills/tree/main/skills/earth2studio-data-fetchType this inside Codex. $skill-installer <name> installs a curated skill from openai/skills. The installer writes to $CODEX_HOME/skills (default ~/.codex/skills). Restart Codex if the skill does not show up.
$ npx skills add NVIDIA/skills --skill earth2studio-data-fetch -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install NVIDIA/skills earth2studio-data-fetch --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/NVIDIA/skills.git skills-src && mkdir -p .agents/skills && cp -r skills-src/skills/earth2studio-data-fetch .agents/skills/earth2studio-data-fetch && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "earth2studio-data-fetch" agent skill from https://github.com/NVIDIA/skills/tree/main/skills/earth2studio-data-fetch into .agents/skills/earth2studio-data-fetch/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "earth2studio-data-fetch", then confirm the skill loads.Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add NVIDIA/skills --skill earth2studio-data-fetch -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install NVIDIA/skills earth2studio-data-fetch --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/NVIDIA/skills.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/skills/earth2studio-data-fetch .cursor/skills/earth2studio-data-fetch && rm -rf skills-srcUse ~/.cursor/skills/ instead of .cursor/skills for a personal install.
Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/
Install the "earth2studio-data-fetch" agent skill from https://github.com/NVIDIA/skills/tree/main/skills/earth2studio-data-fetch into .cursor/skills/earth2studio-data-fetch/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "earth2studio-data-fetch", then confirm the skill loads.Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gemini skills install https://github.com/NVIDIA/skills.git --path skills/earth2studio-data-fetch--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.
$ npx skills add NVIDIA/skills --skill earth2studio-data-fetch -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install NVIDIA/skills earth2studio-data-fetch --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/NVIDIA/skills.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/skills/earth2studio-data-fetch .gemini/skills/earth2studio-data-fetch && rm -rf skills-srcUse ~/.gemini/skills/ instead of .gemini/skills for a personal install, then run /skills reload.
Gemini CLI skills documentation · loads skills from .gemini/skills/, .agents/skills/
Install the "earth2studio-data-fetch" agent skill from https://github.com/NVIDIA/skills/tree/main/skills/earth2studio-data-fetch into .gemini/skills/earth2studio-data-fetch/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "earth2studio-data-fetch", then confirm the skill loads.Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gh skill install NVIDIA/skills earth2studio-data-fetchInstalls for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).
$ npx skills add NVIDIA/skills --skill earth2studio-data-fetch -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/NVIDIA/skills.git skills-src && mkdir -p .github/skills && cp -r skills-src/skills/earth2studio-data-fetch .github/skills/earth2studio-data-fetch && rm -rf skills-srcUse ~/.copilot/skills/ instead of .github/skills for a personal install. Commit .github/skills so cloud agent and code review can use it.
GitHub Copilot skills documentation · loads skills from .github/skills/, .claude/skills/, .agents/skills/
Install the "earth2studio-data-fetch" agent skill from https://github.com/NVIDIA/skills/tree/main/skills/earth2studio-data-fetch into .github/skills/earth2studio-data-fetch/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "earth2studio-data-fetch", then confirm the skill loads.GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add NVIDIA/skills --skill earth2studio-data-fetch -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install NVIDIA/skills earth2studio-data-fetch --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/NVIDIA/skills.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/skills/earth2studio-data-fetch .opencode/skills/earth2studio-data-fetch && rm -rf skills-srcUse ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.
OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/
Install the "earth2studio-data-fetch" agent skill from https://github.com/NVIDIA/skills/tree/main/skills/earth2studio-data-fetch into .opencode/skills/earth2studio-data-fetch/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "earth2studio-data-fetch", then confirm the skill loads.OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
earth2studio-data-fetchFetch weather/climate data via Earth2Studio data sources for specific variables and times.
Earth2studio Data Fetch is an agent skill from NVIDIA/skills, published by the product's own GitHub organization. Fetch weather/climate data via Earth2Studio data sources for specific variables and times. Do NOT use for inference pipelines, model discovery, or installation.
Its SKILL.md is about 2.2k tokens, which your agent loads only when the skill is triggered. The skill folder holds 9 other files (for example `BENCHMARK.md`, `evals/evals.json` and `evals/targets/eval_1_target.py`).
It sits in Research & Science, covering Physical and earth sciences. 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.
6 steps, taken from the step headings in SKILL.md.
Read from SKILL.md and the folder at commit 0e0d506. It shows what the files ask for, not the result of running them.
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.
Ships script files (Python), which the agent can run.
Shell commands in SKILL.md call:
uvFrom the folder's file list and the shell code blocks in SKILL.md.
Hosts in commands or code, which the agent is likely to contact:
github.comAlso links to:
nvidia.github.ioFrom URLs in SKILL.md, links to its own repository left out.
Names no API keys, tokens, secrets or passwords.
From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.
Earth2studio Data Fetch loads about 2.2k tokens when it runs. Until then it costs about 46 tokens; SKILL.md has 948 words of instructions outside code blocks.
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.
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.
The full file from NVIDIA/skills at commit 0e0d506, republished under its Apache-2.0 licence (© NVIDIA). 948 words, ~2,165 tokens.
.claude/skills/earth2studio-data-fetch/SKILL.md (or your agent's skills folder). This skill also uses 7 other files; get the full folder from GitHub.Guide a user through downloading weather/climate data via Earth2Studio data source APIs. Identifies compatible sources by checking the lexicon, verifies variable support, and produces a working fetch script outputting an xarray DataArray.
uv pip install earth2studio or equivalent)~/.cdsapirc)You are helping a user download specific weather/climate data using Earth2Studio's data source APIs. Your job is to identify which data source(s) can provide the requested variables, verify compatibility via the lexicon system, and produce a working fetch script.
Data source APIs, available variables, and the lexicon evolve between releases. Before recommending a data source or writing a fetch script:
Live doc references (fetch only what the user's request requires):
Extract from what the user has said (ask follow-ups if needed, cap at 3 questions):
t2m, u500, z850, tp, msl). If the user uses plain language
("500 hPa geopotential height"), map it to the E2Studio name by checking
the live base.py E2STUDIO_VOCAB.Based on the request type, narrow candidates:
Analysis/reanalysis (historical state at a specific time):
Forecast (predictions from an initialization time with lead times):
Key differentiators to surface:
This is critical. Each data source has a lexicon file that defines which E2Studio variables it can provide.
To verify:
https://github.com/NVIDIA/earth2studio/blob/main/earth2studio/lexicon/<source>.py
(e.g. gfs.py, hrrr.py, cds.py, arco.py, wb2.py)VOCAB dictThe lexicon VOCAB maps Earth2Studio variable names → source-specific identifiers. If a variable key exists in the VOCAB, the source supports it.
Present the results clearly: "GFS supports t2m, u500, z850. HRRR also
supports these but is limited to North America. ARCO (ERA5) supports all
three and has data back to 1959."
Present the viable options with tradeoffs:
| Source | Variables | Coverage | Resolution | Time Range |
|---|---|---|---|---|
| ... | ... | ... | ... | ... |
Let the user pick. If there's one obvious choice, recommend it and ask for confirmation.
Write a Python script that uses the selected data source to fetch the requested data. The script structure depends on whether it's an analysis or forecast source.
Analysis source pattern:
import datetime
from earth2studio.data import <SourceClass>
# Initialize data source
ds = <SourceClass>()
# Fetch data
# Analysis sources use: ds(time, variable) -> xr.DataArray
time = [datetime.datetime(YYYY, M, D, H)] # or array of times
variable = ["var1", "var2"] # E2Studio variable names
data = ds(time, variable)Forecast source pattern:
import datetime
from earth2studio.data import <SourceClass>
# Initialize data source
ds = <SourceClass>()
# Forecast sources use: ds(time, lead_time, variable) -> xr.DataArray
time = [datetime.datetime(YYYY, M, D, H)] # initialization time
lead_time = [datetime.timedelta(hours=H)] # or array of lead times
variable = ["var1", "var2"]
data = ds(time, lead_time, variable)Always fetch the specific data source's API doc page to confirm the exact constructor arguments and call signature before writing the script — they can vary (some need auth tokens, cache paths, specific parameters).
Include in the script:
print(data), data.shape, data.coords)After delivering the script, mention:
EARTH2STUDIO_CACHE)Owns: identifying data sources for a user's variable/time request, verifying variable support via lexicon, generating data fetch scripts, explaining analysis vs. forecast source differences.
Does not own: installation (earth2studio-install), model selection (earth2studio-discover), inference pipelines, custom data source creation (point to extend examples), data source authentication setup beyond what the docs describe.
Typical invocation:
"I need 500 hPa geopotential height and 2m temperature from ERA5 for January 1, 2020 at 00Z."
The skill would:
z500, t2mDataArrayFile/DataSetFile directly| Error | Cause | Solution |
|---|---|---|
KeyError: '<var>' | Not in lexicon | Check lexicon; try another source |
FileNotFoundError / 404 | Time not available | Verify temporal coverage |
CDS API timeout | Queue congestion | Retry or use ARCO for ERA5 |
ModuleNotFoundError | Not installed | uv pip install earth2studio |
| Empty DataArray | Time/var mismatch | Check datetime and variable name |
© 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
SKILL.md and 7 other files in skills/earth2studio-data-fetch of NVIDIA/skills.
Open the folder on GitHubat commit 0e0d506
Earth2studio Data Fetch 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.
| Skill | Stars | Used in | Tokens | Auto-check | Licence | Repo updated |
|---|---|---|---|---|---|---|
| Earth2studio Data Fetch this skillNVIDIA/skills | 3.5k | — | ~2.2k | Automated safety check: Pass | Apache-2.0 | |
| AstropyzLanqing/codex-claude-academic-skills | 4.6k | 14 repos | ~2.9k | Automated safety check: Pass | BSD-3-Clause | |
| PymatgenzLanqing/codex-claude-academic-skills | 4.6k | 12 repos | ~5k | Automated safety check: Pass | MIT | |
| Cantera Ignition DelayK-Dense-AI/scientific-agent-skills | 48k | 1 repos | ~2.2k | Automated safety check: Pass | MIT | |
| Weathertrpc-group/trpc-agent-go | 1.8k | 8 repos | ~591 | Automated safety check: Pass | Apache-2.0 | |
| Pymol VisualizationChatMol/ChatMol | 372 | — | ~1.2k | Automated safety check: Pass | MIT |
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Categories
Fetch weather/climate data via Earth2Studio data sources for specific variables and times. Earth2studio Data Fetch is an agent skill from NVIDIA/skills, published by the product's own GitHub organization. Fetch weather/climate data via Earth2Studio data sources for specific variables and times.
Earth2studio Data Fetch fits situations like: inference pipelines; model discovery.
Run `npx skills add NVIDIA/skills --skill earth2studio-data-fetch -a claude-code`. Or copy the skill folder (skills/earth2studio-data-fetch in NVIDIA/skills) into .claude/skills/earth2studio-data-fetch in your project. Claude Code loads it when a task matches its description.
Run `npx skills add NVIDIA/skills --skill earth2studio-data-fetch -a codex`. Or copy the skill folder (skills/earth2studio-data-fetch in NVIDIA/skills) into .agents/skills/earth2studio-data-fetch in your project. Codex loads it when a task matches its description.
Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add NVIDIA/skills --skill earth2studio-data-fetch -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/earth2studio-data-fetch, .gemini/skills/earth2studio-data-fetch, .github/skills/earth2studio-data-fetch and .opencode/skills/earth2studio-data-fetch in your project.
Going by SKILL.md and its folder, Earth2studio Data Fetch needs Python for the scripts in its folder and the command-line tools its instructions call (uv). Our summary lists: Python 3.
SKILL.md names 2 domains. In commands or code: github.com; the agent is likely to contact it when it follows the instructions. As links in the text: nvidia.github.io. This is read from the text; nothing was executed.
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.
Earth2studio Data Fetch 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.
About 2.2k tokens (SKILL.md is roughly 8.7k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.
Skills that share tags, products or a category with Earth2studio Data Fetch: Astropy (zLanqing/codex-claude-academic-skills, 4.6k stars), Pymatgen (zLanqing/codex-claude-academic-skills, 4.6k stars), Cantera Ignition Delay (K-Dense-AI/scientific-agent-skills, 48k stars) and Weather (trpc-group/trpc-agent-go, 1.8k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
NVIDIA (a GitHub organization, an official publisher) maintains it in NVIDIA/skills, which has 3,534 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.