# Trace and evaluate LLM application behavior with Langtrace

> Instrument Python or TypeScript agent applications with OpenTelemetry traces, metrics, and evaluation views for debugging production LLM workflows.

- Skill: `agentskillexchange/trace-and-evaluate-llm-application-behavior-with-langtrace` (Agent Skill)
- Install (CLI): `npx skillmds@latest add agentskillexchange/trace-and-evaluate-llm-application-behavior-with-langtrace`
- Raw SKILL.md: https://api.skillmd.com/api/skills/agentskillexchange/trace-and-evaluate-llm-application-behavior-with-langtrace/raw
- Safety review: pending (external: skill-scanner PASS, skillspector PASS)
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: AI & ML
- Author: agentskillexchange (https://skillmd.com/u/agentskillexchange)
- Updated: 2026-09-08
- Page: https://skillmd.com/skills/agentskillexchange/trace-and-evaluate-llm-application-behavior-with-langtrace

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# Trace and evaluate LLM application behavior with Langtrace

Instrument Python or TypeScript agent applications with OpenTelemetry traces, metrics, and evaluation views for debugging production LLM workflows.

## Prerequisites

Python or Node.js runtime, Langtrace API key or self-hosted Langtrace instance

## Installation

Requirements and caveats from upstream:
- [![PyPI SDK](https://img.shields.io/pypi/v/langtrace-python-sdk?style=flat-square&logo=python&label=python-sdk&color=green)](https://github.com/Scale3-Labs/langtrace-python-sdk)
- [![PyPI Downloads](https://static.pepy.tech/badge/langtrace-python-sdk/month)](https://pepy.tech/project/langtrace-python-sdk)
- [![Total PyPI Downloads](https://static.pepy.tech/badge/langtrace-python-sdk)](https://static.pepy.tech/badge/langtrace-python-sdk)

- Source: https://github.com/Scale3-Labs/langtrace
- Extracted from upstream docs: https://raw.githubusercontent.com/Scale3-Labs/langtrace/HEAD/README.md

## Documentation

- https://github.com/Scale3-Labs/langtrace

## Source

- [Agent Skill Exchange](https://agentskillexchange.com/skills/trace-and-evaluate-llm-application-behavior-with-langtrace/)