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Langsmith Dataset

Category: Dev Tools  ·  Sub-category: tools-misc  ·  Last updated:
INVOKE THIS SKILL when creating evaluation datasets, uploading datasets to LangSmith, or managing existing datasets. Covers dataset types (final_response, single_step, trajectory, RAG), CLI management commands, SDK-based creation, and example management. Uses the langsmith CLI tool.
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From the source SKILL.md

<oneliner> Create, manage, and upload evaluation datasets to LangSmith for testing and validation. </oneliner>

LANGSMITH_API_KEY=lsv2_pt_your_api_key_here          # Required
LANGSMITH_PROJECT=your-project-name                   # Check this to know which project has traces
LANGSMITH_WORKSPACE_ID=your-workspace-id              # Optional: for org-scoped keys

What this skill does

Langsmith Dataset is a community-contributed Claude Code skill in the tools-misc sub-category. It ships as a SKILL.md file that Claude Code auto-discovers under ~/.claude/skills/langsmith-dataset/ and loads when your prompt matches the skill's trigger.

Who uses this skill

The Langsmith Dataset Claude Code skill is built for developers, power users, and teams automating repetitive workflows and improving developer experience. It's part of ClaudSkills (also referred to as Claude Skills or Claude Code Skills) — the open community-curated registry of 174,000+ SKILL.md files for Anthropic's Claude Code agent and the wider Claude ecosystem (Claude API, Claude Agent SDK).

How to install

Free

Manual install (2 steps)

mkdir -p ~/.claude/skills/langsmith-dataset
curl -L https://claudskills.com/skills/langsmith-dataset/SKILL.md \
  -o ~/.claude/skills/langsmith-dataset/SKILL.md

Or just download SKILL.md directly and drop it into ~/.claude/skills/langsmith-dataset/. Claude Code auto-discovers it on next session.

Skills live at ~/.claude/skills/langsmith-dataset/SKILL.md on macOS/Linux, or %USERPROFILE%\.claude\skills\langsmith-dataset\SKILL.md on Windows. See the full install guide for step-by-step instructions.

Telegram

📱 Install from your phone or desktop Telegram

Open @claudskills_bot on Telegram, tap Open Desktop App, and the desktop app installs this skill for you. Or share the bot link with a colleague — they get the same one-tap install. Learn more →

Pro

One-click install via the desktop app

The ClaudSkills desktop app installs any skill directly into ~/.claude/skills/ with one click — no terminal required. Pro starts at $9/mo or $149 lifetime.

Pro

For the full experience including quality scoring and one-click install features for each skill — upgrade to Pro.

See pricing → Download desktop app

Frequently asked questions

How do I install the Langsmith Dataset Claude Code skill?
Install via the ClaudSkills desktop app (one click) or copy SKILL.md from the source repository to ~/.claude/skills/langsmith-dataset/SKILL.md and restart Claude Code. Both flows are detailed at claudskills.com/install/.
What does the Langsmith Dataset skill do?
INVOKE THIS SKILL when creating evaluation datasets, uploading datasets to LangSmith, or managing existing datasets. Covers dataset types (final_response, single_step, trajectory, RAG), CLI management commands, SDK-based creation, and example management. Uses the langsmith CLI tool.
Is this skill free to install?
Yes. ClaudSkills is an open registry — every skill keeps its source repository's license, and manual install via copy is free. ClaudSkills Pro ($9/mo, $79/yr, or $149 one-time) adds one-click install via the desktop app and a multi-signal Quality Score.
When should I use the Langsmith Dataset skill?
Use Langsmith Dataset when your Claude Code task falls under the Dev Tools category — specifically in the tools misc area. Claude Code auto-discovers installed skills and invokes the right one based on the task description, so you can also ask Claude directly (e.g. "use Langsmith Dataset" or describe the task and let Claude pick). Browse related skills at /category/tools/.
What is a Claude Code skill and how does the Langsmith Dataset skill fit in?
A Claude Code skill is a SKILL.md file that lives under ~/.claude/skills/<name>/ and tells the Claude Code CLI agent how to perform a specific task (instructions, prompts, allowed tools). Skills are auto-discovered at session start. Langsmith Dataset is one of 67,000+ skills indexed in the open ClaudSkills catalog, classified under the Dev Tools category. Learn more at /learn/what-is-a-claude-skill/.

Attribution & license

Cite this skill

If you reference this skill in a blog post, paper, or documentation, you can cite it as:

APA
majiayu000. (2026). Langsmith Dataset [Claude Code skill]. ClaudSkills. https://claudskills.com/skills/langsmith-dataset/
BibTeX
@misc{langsmith-dataset-2026,
  author    = {majiayu000},
  title     = {Langsmith Dataset [Claude Code skill]},
  year      = {2026},
  publisher = {ClaudSkills},
  url       = {https://claudskills.com/skills/langsmith-dataset/}
}

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Security scan

Grade A · scanned 2026-08-02 — free static scan against the OWASP Agentic Skills Top 10.

The scan flagged 1 of 10 categories (supply-chain), including a high-severity pattern. Patterns shown inside code fences are weighted as examples rather than instructions — read the grading methodology for what this does and does not guarantee.

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