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Langfuse Skills

Agent Skills that teach AI coding assistants (Claude Code, Cursor, etc.) how to work with Langfuse — the open-source LLM engineering platform for tracing, prompt management, and evaluation.

Skills

| Skill | Description | | --------------------------------------------------------------- | -------------------------------------------------------------------------------------------------- | | langfuse | Main skill to work with Langfuse. Query and manage traces, prompts, datasets, and scores via the Langfuse API; look up documentation; do things with best practices in mind. |

Installation

Cursor Plugin

Install as a Cursor plugin:

/add-plugin langfuse

skills CLI

Install via the skills CLI:

npx skills add langfuse/skills --skill "langfuse"

Manual symlink

Clone this repo and symlink the skill into your agent's skills directory:

git clone https://github.com/langfuse/skills.git /path/to/langfuse-skills
ln -s /path/to/langfuse-skills/skills/langfuse /path/to/skills-directory/langfuse

Prerequisites

You need a Langfuse account (cloud or self-hosted) and API keys:

export LANGFUSE_PUBLIC_KEY=pk-lf-...
export LANGFUSE_SECRET_KEY=sk-lf-...
export LANGFUSE_BASE_URL=https://cloud.langfuse.com  # or https://us.cloud.langfuse.com, or self-hosted URL

API keys are found in your Langfuse project under Settings > API Keys.

Usage

Once installed, the agent will automatically use these skills when relevant — for example:

• Setting up Langfuse tracing in a project
• Setting up CI/CD experiment gates with langfuse/experiment-action
• Auditing existing instrumentation
• Migrating prompts to Langfuse prompt management
• Querying traces, prompts, or datasets via the API
• Looking up Langfuse docs, SDK usage, or integration guides

Feedback & Requests

Something not working as expected, or want a new skill? Start a discussion.