skill

langfuse · davila7 — Claude Code skill: what it does, how to install

Q: How to install langfuse in Claude Code?

Run `npx claude-code-templates@latest --skill ai-research/langfuse` in your terminal. Alternatively, install it with `npx skills add davila7/claude-code-templates --skill langfuse -a claude-code`.

Adds LLM observability, prompt metrics, and trace logging to projects via Langfuse. Helps monitor LangChain or OpenAI workflows.

Install into Claude Code · claude-code-templates All methods and platforms ↓

npx claude-code-templates@latest --skill ai-research/langfuse

Open on GitHub

What langfuse does

This skill guides Claude Code in setting up LLM telemetry for Python and TypeScript applications. It covers instrumenting model calls, grouping interactions with user identifiers, and logging response scores. To use it, you need a Langfuse account (cloud-hosted or self-hosted), host credentials, and active LLM provider keys.

The skill outlines integration patterns such as the drop-in langfuse.openai wrapper and the LangChain CallbackHandler. It also flags operational pitfalls. In serverless setups, omitting langfuse.flush() drops batched traces before the process exits.

What it helps with

instrument model calls with traces and spans
track token expenditures and response latency
attach LangChain callbacks to log chain executions
record user feedback scores on generated outputs

Example prompts for the agent

Add Langfuse tracing to our OpenAI completion script.
Configure a LangChain CallbackHandler with user and session metadata.
Show how to flush pending traces inside an AWS Lambda handler.

How to install langfuse

1claude-code-templates

npx claude-code-templates@latest --skill ai-research/langfuse

2Skills CLI (Vercel)

npx skills add davila7/claude-code-templates --skill langfuse -a claude-code

3Manually: put the files in place

~/.claude/skills/langfuse/SKILL.md

Copy the whole skill folder; for one project use .claude/skills/langfuse/

Manually: put the files in place

.agents/skills/langfuse/SKILL.md

For all projects use ~/.agents/skills/

Manually: put the files in place

.cursor/skills/langfuse/SKILL.md

Cursor also reads .agents/skills/ and .claude/skills/

1GitHub CLI

gh skill install davila7/claude-code-templates langfuse

2Manually: put the files in place

.github/skills/langfuse/SKILL.md

Platform CLI

gemini skills install https://github.com/davila7/claude-code-templates --path cli-tool/components/skills/ai-research/langfuse

Manually: put the files in place

.devin/skills/langfuse/SKILL.md

The legacy .windsurf/skills/ path still works

Step by step, with commands for each platform: How to install skills in Claude Code: five ways

Questions about langfuse

How to install langfuse in Claude Code?

Run npx claude-code-templates@latest --skill ai-research/langfuse in your terminal. Alternatively, install it with npx skills add davila7/claude-code-templates --skill langfuse -a claude-code.

What does the langfuse skill do?

It instructs the assistant on implementing Langfuse tracing, dataset tracking, and prompt scoring. It focuses on Python and TypeScript stacks using OpenAI or LangChain.

What prerequisites are required for Langfuse integration?

You need a self-hosted or cloud Langfuse account with public and secret keys, plus working API keys for your model providers.

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