Get Started with Prompt Management
This guide walks you through creating and using a prompt with Langfuse. If you're looking to understand what prompt management is and why it matters, check out the Prompt Management Overview first. For details on how prompts are structured in Langfuse and how it works in the background, see Core Concepts.
Get API keys
- Create Langfuse account or self-host Langfuse.
- Create new API credentials in the project settings.
Set up your AI agent
Use the Langfuse Skill in your editor’s agent mode to automatically create, edit, and use prompts.
What is a Skill? A reusable instruction package for AI coding agents. It gives your agent Langfuse-specific workflows and best practices out of the box.
Install the Langfuse Skill in your coding tool:
Langfuse has a Cursor Plugin that includes the skill automatically.
Create a prompt
Start a new agent session, then prompt it to create your prompt:
"Create a prompt in Langfuse called 'movie-critic' that takes a movie name
and critic level as variables."Or prompt it to migrate your existing prompts to Langfuse:
"Migrate the hardcoded prompts in this codebase to Langfuse."Use the prompt in your code
If you haven't started a new agent session yet, start one and prompt it to integrate prompt fetching:
"Fetch the 'movie-critic' prompt, production version, from Langfuse
and use it in my application."Not seeing what you expected?
Next steps
Now that you've used your first prompt, there are a couple of things we recommend you do next to make the most of Langfuse Prompt Management:
- Link prompts to traces to analyze performance by prompt version
- Use version control and labels to manage deployments across environments
Looking for something specific? Take a look under Features for guides on specific topics.
