Plugin

Langfuse Pack

Claude Code skill pack for Langfuse LLM observability (24 skills)

Type: Plugin
Repository: jeremylongshore/tons-of-skills-marketplace
GitHub stars: 2.8k
License: MIT
Repo last updated: Sep 27, 2026
Source file: plugins/saas-packs/langfuse-pack/.claude-plugin/plugin.json
Version: 1.17.0
Author: Jeremy Longshore

What Langfuse Pack is

Langfuse Pack is a plugin published in the jeremylongshore/tons-of-skills-marketplace repository on GitHub, which has about 2.8k stars. The repository describes itself as: “Model-agnostic agent-skills platform with a harness-free canonical layer, verified adapters, and the ccpi package manager. Explore at tonsofskills.com.”

A plugin is a package that bundles skills, slash commands, subagents, hooks, and MCP connectors so they install together. Plugins are plain files with a manifest at .claude-plugin/plugin.json, and they work in both Claude Code and Claude Cowork.

Installing Langfuse Pack adds everything it ships in one step. Connectors inside a plugin still need to be connected separately, and hooks and subagents only run in Cowork and Claude Code, not in regular chat.

How to install Langfuse Pack

Claude Code

Add the repository as a plugin marketplace: claude plugin marketplace add jeremylongshore/tons-of-skills-marketplace
Install the plugin: claude plugin install langfuse-pack@<marketplace-name>, using the marketplace name from the repository's .claude-plugin/marketplace.json.
Restart the session if the new skills or commands don't appear straight away.

Claude Cowork

Open Customize → Plugins and choose Add marketplace.
Enter jeremylongshore/tons-of-skills-marketplace (the owner/repo shorthand works for GitHub).
Find Langfuse Pack in the list, click Install, then connect any connectors it needs from its Connectors tab.

New to extending Cowork? Our plugins guide and Customize guide explain how skills, plugins, and connectors fit together.

Inside the source file

An excerpt from plugins/saas-packs/langfuse-pack/.claude-plugin/plugin.json, shared under the repository's MIT license. Read the full file on GitHub.

> Claude Code skill pack for Langfuse LLM observability -- 24 skills covering tracing, evaluation, prompt management, and production operations.

What is Langfuse?

Langfuse is an open-source LLM engineering platform providing:

Tracing: End-to-end observability for LLM calls, chains, and agents (OpenTelemetry-based in SDK v4+)
Evaluation: Score outputs with user feedback, automated evals, LLM-as-a-Judge, and dataset experiments
Prompt Management: Version, deploy, and A/B test prompts with labels and variables
Analytics: Monitor costs, latency, and token usage with built-in and custom dashboards
Datasets: Create test sets, run experiments, and track quality regressions
Self-hosted or Cloud: Deploy anywhere or use managed cloud at cloud.langfuse.com

Installation

/plugin install langfuse-pack@claude-code-plugins-plus

SDK Coverage

All skills cover both SDK versions:

Skills (24)

Getting Started (S01-S04)

Core Workflows (S05-S06)

Troubleshooting (S07-S10)

Production (S11-S12)

Pro Skills (P13-P18)

Flagship Skills (F19-F24)

Usage

Skills trigger automatically when you discuss Langfuse topics:

"Help me set up Langfuse" -> langfuse-install-auth
"Add tracing to my OpenAI calls" -> langfuse-core-workflow-a
"Set up evaluation for my LLM app" -> langfuse-core-workflow-b
"Debug this Langfuse error" -> langfuse-common-errors
"Track LLM costs with Langfuse" -> langfuse-cost-tuning
"Migrate from langfuse v3 to v4" -> langfuse-upgrade-migration

License

MIT

Before you install

Read the whole file first. Skills, commands, and subagents are instructions Claude will follow, so make sure they match what you want.
Check which tools, scripts, or MCP servers it uses. Local servers and scripts run with your permissions.
Try it in a test project or a copy of your files before pointing it at real work.
Pin the version you tested, and review changes before updating.
Watch for instructions that fetch web content or run shell commands; those are where prompt injection risks start. See our prompt injection guide.

FAQ

What is Langfuse Pack?

Langfuse Pack is a plugin for Claude Code and Claude Cowork from the jeremylongshore/tons-of-skills-marketplace repository on GitHub. Claude Code skill pack for Langfuse LLM observability (24 skills)

How do I install Langfuse Pack in Claude Code?

Add the repository as a plugin marketplace: claude plugin marketplace add jeremylongshore/tons-of-skills-marketplace Install the plugin: claude plugin install langfuse-pack@<marketplace-name>, using the marketplace name from the repository's .claude-plugin/marketplace.json. Restart the session if the new skills or commands don't appear straight away.

Can I use Langfuse Pack in Claude Cowork?

Open Customize → Plugins and choose Add marketplace. Enter jeremylongshore/tons-of-skills-marketplace (the owner/repo shorthand works for GitHub). Find Langfuse Pack in the list, click Install, then connect any connectors it needs from its Connectors tab.

Is Langfuse Pack safe to install?

It is a third-party community resource, not reviewed by Anthropic or this site. Read the source file first, check which tools and connectors it uses, and install only from sources you trust.

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Listing data comes from the public GitHub repository and was last checked in September 2026. Excerpts are © their authors and shared under MIT. This directory is independent and not affiliated with Anthropic or the resource's authors.