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Niklas Semmler
cf2787821e
langfuse-docs#3360 restructures the PostHog and Mixpanel integration pages v4-first: the old 'Export source (Fast Preview, Langfuse v4)' section became 'Legacy export sources', so the #export-source-fast-preview-langfuse-v4 anchor no longer exists. Point the migration links at the explicit #migrate-export-source anchor and add links to the new #legacy-vs-enriched schema-change sections (the analytics counterpart of the blob-storage field-differences link). Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
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
Feedback & Requests
Something not working as expected, or want a new skill? Start a discussion.