data-download

data-download is a skill for Claude Code from GRIND-Lab-Core/night_owl_research_agent. It costs 98 tokens per session (8,268 once invoked), scanned A, original, no licence file.

A tool for finding, checking, downloading, and documenting public datasets for a research task.

In plain words
What is it for?
Use it to identify authoritative datasets, download them reproducibly, validate them, and record where they came from.
Why use it?
It reduces the work of locating suitable data and helps confirm that downloaded files are intact and their sources are recorded.

Skill for Claude Code

Written for Claude Code: allowed-tools in frontmatter.

Good fit Use it to identify authoritative datasets, download them reproducibly, validate them, and record where they came from.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/grind-lab-core/night_owl_research_agent/data-download
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 GRIND-Lab-Core/night_owl_research_agent --skill data-download
Clone the repo
git clone --depth 1 https://github.com/GRIND-Lab-Core/night_owl_research_agent

Made for: Claude Code.

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 data-download

README.md
[![agentmods](https://agentmods.dev/badge/skills/grind-lab-core/night_owl_research_agent/data-download/github.svg)](https://agentmods.dev/skills/grind-lab-core/night_owl_research_agent/data-download)
Your own site
<a href="https://agentmods.dev/skills/grind-lab-core/night_owl_research_agent/data-download"><img src="https://agentmods.dev/badge/skills/grind-lab-core/night_owl_research_agent/data-download/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 data-download

Your own site · 80×15
<a href="https://agentmods.dev/skills/grind-lab-core/night_owl_research_agent/data-download"><img src="https://agentmods.dev/badge/skills/grind-lab-core/night_owl_research_agent/data-download.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 98 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 8,268 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 1 finding. A grade says what 26 rules found in the file — not that it is safe.
Origin unknown 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 $0.00098 $0.08268
Opus 5 $0.00049 $0.04134
Sonnet 5 $0.00020 $0.01654
Haiku 4.5 $0.00010 $0.00827

Measured 10d ago against content hash ed0ada874b18, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, from the pricing page.

Security

Grade A, and why

data-download scanned grade A with 1 finding 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 10d 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.

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

response = requests.get(url, stream=True, timeout=60)
skills/data-download/SKILL.md · 770 lines

The source is not reproduced here

No licence file

A repository with no LICENSE is all rights reserved by default, so the body is not copied here. The metadata, the measurements and the link are.

Read it on GitHub

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. 10d ago First seen · 770 lines · 98 tokens per session scan A ed0ada874b18

Subscribe to this mod's changes

data-download is a skill published in the GitHub repository GRIND-Lab-Core/night_owl_research_agent (103 stars, last pushed 4mo ago), with no licence file. It adds 98 tokens to every session and 8,268 once invoked, about $0.0005 per session on Opus 5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

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