langchain-ai/langsmith-claude-code-plugins

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# LangSmith Tracing Plugin for Claude Code

A Claude Code plugin that traces conversations, tool calls, subagent executions, and context compaction to [LangSmith](https://smith.langchain.com).

**Setting up the LangSmith Gateway?** Start with the required [LangSmith CLI installation and browser login](#langsmith-cli-prerequisite), then install and enable the separate `langsmith-gateway` plugin. The tracing plugin documented below does **not** require the LangSmith CLI and is optional when using the gateway.

![](./static/img/example_trace.png)

## Prerequisites

- [Node.js](https://nodejs.org/) v18+

## Installation

Every option below installs the same tracing integration. Only the delivery
differs. The plugin runs on the Node on your PATH and the marketplace manages
it. The standalone binary carries its own Node and you manage it. You are
picking an install method, not a different product.

### As a Claude Code plugin

View full repository on GitHub →