Monitoring
Plugin
langfuse
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.
Plugin Signal67/100Solid
maintained100
capable14
documented100
adopted52
Install
$ npx -y skills add langfuse/skills --agent claude-code
What's inside
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README
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
- Preparing an application and Langfuse project for the v4 platform migration
- Migrating prompts to Langfuse prompt management
- Querying traces, prompts, or datasets via the API
- Looking up Langfuse docs, SDK usage, or integration guides
Contributing
Want to improve a skill or add a new one? See CONTRIBUTING.md.
Feedback & Requests
Something not working as expected, or want a new skill? Start a discussion.
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FAQ
langfuse is a Claude Code plugin with 1 hand-picked skill for monitoring work, indexed on Flowy. Install it with the command on its page. It includes langfuse. Its skills do not fire on their own yet. Request auto-invocation to have Flowy route them as you prompt. Free and open source.
- What is langfuse?
- 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.
- How do I install langfuse?
- Run these in Claude Code: npx -y skills add langfuse/skills --agent claude-code. Then prompt normally.
- Does langfuse auto-invoke its skills?
- Not yet. It is indexed on Flowy as a plain plugin. Request auto-invocation on its page and Flowy will route its skills for you as you prompt.
- Is langfuse free?
- Yes. Flowy is free and open source, with nothing gated. You can read every skill in full before you install.
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