langsmith-fetch

Fetch LangSmith Studio execution traces to debug LangChain and LangGraph agents.

Updated Feb 13, 2026
One-click install
npx skills add https://github.com/sandrusidoltst-a11y/fit_pal --skill langsmith-fetch-sandrusidoltst-a11y
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: langsmith-fetch
Source: https://github.com/sandrusidoltst-a11y/fit_pal/tree/main/.agent/skills/langsmith-fetch
Command: npx skills add https://github.com/sandrusidoltst-a11y/fit_pal --skill langsmith-fetch-sandrusidoltst-a11y

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes references (resource) components.

What problem does it solve?

This Skill streamlines the debugging of LangChain and LangGraph agents by providing direct access to execution traces from LangSmith Studio, simplifying error identification and performance analysis.

Core Features & Use Cases

  • Fetch Recent Traces: Quickly review recent agent activity for debugging.
  • Deep Dive Specific Traces: Analyze individual trace details, including tool calls and errors.
  • Export Debug Sessions: Save traces and threads for offline analysis and collaboration.
  • Error Detection: Automatically identify and report common error patterns.
  • Use Case: When an agent behaves unexpectedly, use this Skill to fetch the last 5 minutes of traces, identify any errors, and report the findings.

Quick Start

Debug your agent by fetching the last 5 minutes of traces and displaying them in a pretty format.

Frequently Asked Questions about langsmith-fetch

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I debug LangGraph agents using LangSmith traces?

Debug LangGraph agents by fetching execution traces from LangSmith Studio to analyze agent behavior, tool calls, and memory operations. This Skill retrieves recent activity to simplify error identification and performance analysis.

Why does my LangChain agent behave unexpectedly during execution?

Unexpected LangChain agent behavior can be investigated by fetching the last 5 minutes of execution traces to automatically identify common error patterns. Reviewing tool calls and memory operations within these traces pinpoints the root cause.

Can I export LangSmith debug sessions for offline analysis?

Yes, you can export LangSmith debug sessions by saving execution traces and threads for offline analysis and collaboration. This allows you to review agent performance metrics and error details outside of the Studio environment.

What is the best way to analyze tool calls and errors in LangChain agents?

The best way to analyze tool calls and errors is to deep dive into specific execution traces fetched from LangSmith Studio. This Skill automatically detects and reports common error patterns found within individual trace details.

Do I need the langsmith-fetch CLI tool to retrieve execution traces?

Yes, retrieving and analyzing execution traces requires the langsmith-fetch CLI tool for trace retrieval and analysis. It enables direct access to LangSmith Studio data to review agent activity and performance metrics.