langfuse

Trace LLM interactions and manage prompts via Langfuse.

Updated Apr 6, 2026
One-click install
npx skills add https://github.com/gerald-ica/dev-tool-configs --skill langfuse-gerald-ica
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: langfuse
Source: https://github.com/gerald-ica/dev-tool-configs/tree/main/gemini/skills/langfuse
Command: npx skills add https://github.com/gerald-ica/dev-tool-configs --skill langfuse-gerald-ica

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill requires python, typescript, javascript, langfuse, and includes scripts (resource) and references (resource) components.

What problem does it solve?

This Skill addresses the challenge of monitoring and improving LLM applications in production by providing expert-level tracing, prompt management, and evaluation tools.

Core Features & Use Cases

  • LLM Tracing & Observability: Track and analyze LLM interactions for debugging and performance tuning.
  • Prompt Management: Manage and version prompts to ensure consistent and effective communication with LLMs.
  • Evaluation & Scoring: Assess the quality and effectiveness of LLM outputs through scoring and feedback mechanisms.
  • Use Case: A developer uses this Skill to trace and optimize an LLM-powered chatbot for better user engagement and reduced costs.

Quick Start

Use the langfuse skill to start tracing an LLM interaction for the chatbot 'customer-service-bot'.

Frequently Asked Questions about langfuse

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

FAQPage Schema
How do I add LLM tracing and observability to my Python application?

LLM tracing captures interactions within your application to enable performance tuning and debugging. This Skill provides scripts to trace LLM interactions in Python or TypeScript, requiring a Langfuse account for API access to monitor and evaluate application behavior.

What is the best way to manage and version prompts for LLM applications?

Prompt management handles versioning to ensure consistent communication with LLMs. This Skill offers tools to manage and track prompt iterations alongside observability features, allowing developers to correlate prompt changes with LLM output quality and application performance.

Can I evaluate and score LLM outputs using JavaScript or TypeScript?

Yes, you can evaluate LLM outputs using JavaScript or TypeScript. The Skill supports both environments, providing evaluation and scoring mechanisms to assess the quality and effectiveness of model responses directly within your development stack.

Do I need a Langfuse account to monitor LLM interactions in production?

Yes, a Langfuse account is required for API access to monitor LLM interactions. The Skill integrates with the Langfuse platform to provide comprehensive observability, tracing, and prompt management capabilities for your production applications.

Why should I use dedicated LLM observability tools instead of standard application monitoring?

Dedicated LLM observability tools track specific model interactions, prompt versions, and output quality that standard monitoring misses. This Skill focuses on LLM tracing, prompt management, and evaluation, addressing the unique debugging and cost-optimization needs of LLM-powered applications.

When do I need prompt management and evaluation for my LLM chatbot?

You need prompt management and evaluation when optimizing an LLM chatbot for better user engagement and reduced costs. This Skill allows you to trace interactions, version prompts, and score outputs to systematically assess and improve chatbot performance.