langfuse-prompt-view

name	langfuse-prompt-view
description	View Langfuse prompts. Use when checking prompt contents, comparing versions, or debugging prompt issues.
license	MIT
compatibility	Node.js 18+ (native fetch required)
metadata	{"author":"neuradex","category":"observability"}
allowed-tools	["Bash(npx tsx *scripts/langfuse-prompt-view.ts*)"]

Langfuse Prompt View

Display the content of a specific prompt.

Setup

Set the following environment variables before use:

Variable	Required	Description
LANGFUSE_PUBLIC_KEY	Yes	Langfuse public key
LANGFUSE_SECRET_KEY	Yes	Langfuse secret key
LANGFUSE_HOST or LANGFUSE_BASE_URL	No	Langfuse host URL (default: https://us.cloud.langfuse.com)

When to Use

• Checking prompt content
• Verifying a specific label's version
• Debugging prompts

Commands

1. Show Prompt Content

Get the latest version:

npx tsx scripts/langfuse-prompt-view.ts <prompt-name>

Get a specific label's version:

npx tsx scripts/langfuse-prompt-view.ts <prompt-name> --label=development
npx tsx scripts/langfuse-prompt-view.ts <prompt-name> --label=production

Output Example

============================================================
Prompt: librarian-system
Version: 3
Labels: development
============================================================

--- Content ---

You are an excellent librarian...

--- End ---

Notes

• If no label is specified, the latest version is returned
• Specifying a non-existent prompt name or label will result in an error