Is the Langfuse skill free?

Yes. The skill itself is free from avivsinai/langfuse-mcp. SkillProof publishes the install command and an independent test verdict at no cost.

What is the Langfuse SkillProof Score?

9.6/10 — installs cleanly 5/5, triggers reliably 5/5, output vs. baseline 9/10, docs & honesty 5/5.

How do I install Langfuse?

Copy the install command from this page, run it in your terminal, and restart Claude Code. Skills live in ~/.claude/skills/ (global) or .claude/skills/ inside a project.

Can I use Langfuse with Cursor, Copilot, Gemini CLI, Codex or other AI tools?

The SKILL.md format is native to Claude (Claude Code, Desktop, claude.ai). The instructions inside adapt to other assistants: Cursor rules, GitHub Copilot instructions, Windsurf rules, Custom GPTs, AGENTS.md for OpenAI Codex, and GEMINI.md for Google Gemini CLI — our conversion guides cover each, and the free converter on the tools page does the wrapping for you.

Langfuse

Playbooks that tell Claude which Langfuse MCP tool to call first when debugging LLM traces.

by avivsinai · avivsinai/langfuse-mcp

Works with setup

Install — copy the command Download source ↗

Test report

Verdict: Works with setup
Score: 9.6/10
Tested: Jul 13, 2026
Environment: Claude Code 2.x (agent harness)
Upstream re-checked: Aug 10, 2026 · a5421eb

Turned a vague 'why did this error happen' ask into an exact, correctly-ordered langfuse-mcp call chain (get_user_sessions -> get_session_details -> find_exceptions -> get_exception_details) with right parameter units (age in minutes) — but nothing runs until you separately install langfuse-mcp and paste in real Langfuse API keys.

Scored on four weighted criteria — install, triggering, output vs. baseline, docs. How scoring works

Installs cleanly 5/5
Triggers reliably 5/5
Output vs. baseline 9/10
Docs & honesty 5/5

What Langfuse does

A companion skill to the langfuse-mcp server that turns raw observability tool calls into guided playbooks for exception triage, latency analysis, session review, prompt management, and dataset curation. Triggers on mentions of Langfuse, traces, 'find exceptions', 'why is it slow', datasets, and evaluation sets. Requires a running langfuse-mcp server with real Langfuse API credentials, so it is only useful once that separate piece is configured.

How to install Langfuse

git clone https://github.com/avivsinai/langfuse-mcp
cd langfuse-mcp
mkdir -p ~/.claude/skills
cp -r skills/langfuse ~/.claude/skills/langfuse

Skills live in ~/.claude/skills/ (global) or .claude/skills/ (per-project). Restart Claude Code after installing.

Commands — how to trigger Langfuse

/langfuse Playbooks that tell Claude which Langfuse MCP tool to call first when debugging LLM traces.

It also activates on plain-language prompts like these:

Find the exceptions in my Langfuse traces please
Why is this LLM session so slow in Langfuse?
Debug my agent's traces using Langfuse tools

Frequently asked questions

Is the Langfuse skill free?: Yes. The skill itself is free from avivsinai/langfuse-mcp. SkillProof publishes the install command and an independent test verdict at no cost.
Does Langfuse work with Claude Code?: We tested it with Claude Code 2.x (agent harness) on Jul 13, 2026. Verdict: Works with setup. Turned a vague 'why did this error happen' ask into an exact, correctly-ordered langfuse-mcp call chain (get_user_sessions -> get_session_details -> find_exceptions -> get_exception_details) with right parameter units (age in minutes) — but nothing runs until you separately install langfuse-mcp and paste in real Langfuse API keys.
What is the Langfuse SkillProof Score?: 9.6/10 — installs cleanly 5/5, triggers reliably 5/5, output vs. baseline 9/10, docs & honesty 5/5.
How do I install Langfuse?: Copy the install command from this page, run it in your terminal, and restart Claude Code. Skills live in ~/.claude/skills/ (global) or .claude/skills/ inside a project.
Can I use Langfuse with Cursor, Copilot, Gemini CLI, Codex or other AI tools?: The SKILL.md format is native to Claude (Claude Code, Desktop, claude.ai). The instructions inside adapt to other assistants: Cursor rules, GitHub Copilot instructions, Windsurf rules, Custom GPTs, AGENTS.md for OpenAI Codex, and GEMINI.md for Google Gemini CLI — our conversion guides cover each, and the free converter on the tools page does the wrapping for you.