langchain-ai

Langsmith Skills — Development skill for Claude Code

Development community

⚠️ — This project is in early development.

How to install Langsmith Skills

This entry records only its repository, not the path inside it, so there is no exact command to give. Open langchain-ai/langsmith-skills and copy the folder into ~/.claude/skills/, or the file into ~/.claude/agents/.

What Langsmith Skills does

**⚠️** — This project is in early development. APIs and skill content may change.

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README

LangSmith Skills

**⚠️** — This project is in early development. APIs and skill content may change.

Agent skills for observing and evaluating LLM applications with [LangSmith](https://smith.langchain.com/). Query traces, build evaluation datasets, and create custom evaluators — all from your coding agent.

Looking for skills to **build and improve** agents with LangChain, LangGraph, or Deep Agents? See [langchain-skills](https://github.com/langchain-ai/langchain-skills).

Supported Coding Agents

These skills can be installed for any agent supported by [`skills.sh`](https://skills.sh), including Claude Code, [Deep Agents CLI](https://docs.langchain.com/oss/python/deepagents/cli/overview), Cursor, Windsurf, Goose, and [many more](https://github.com/vercel-labs/skills).

Prerequisites

A LangSmith API key

Installation

Quick Install

Using [`npx skills`](https://github.com/vercel-labs/skills):

**Local** (current project):

npx skills add langchain-ai/langsmith-skills --skill '*' --yes

**Global** (all projects):

npx skills add langchain-ai/langsmith-skills --skill '*' --yes --global

To link skills to a specific agent (e.g. Claude Code):

npx skills add langchain-ai/langsmith-skills --agent claude-code --skill '*' --yes --global

Claude Code Plugin

Install directly as a [Claude Code plugin](https://code.claude.com/docs/en/plugins):

/plugin marketplace add langchain-ai/langsmith-skills
/plugin install langsmith-skills@langsmith-skills

Install Script (Claude Code & Deep Agents CLI only)

Alternatively, clone the repo and use the install script:

# Install for Claude Code in current directory (default)
./install.sh

# Install for Claude Code in a specific project directory
./install.sh ~/my-project

# Install for Claude Code globally
./install.sh --global

# Install for DeepAgents CLI in a specific project directory
./install.sh --deepagents