Is your Langfuse tracing working as expected?

Hey Emre Elbeyoglu,
 
A couple of days ago I shared how to set up tracing. Quick check: Is everything working the way you expected?
 
This is what a typical trace looks like, explore it in our sample project:
[https://cloud.langfuse.com/project/clkpwwm0m000gmm094odg11gi/traces/f6eb35ede2374d71414e42ab130d3b60?ref=onboarding_emails_v2_2_troubleshooting]



 
Four things that come up a lot:


 1. Your traces only show LLM calls
    [https://langfuse.com/docs/observability/best-practices?ref=onboarding_emails_v2_2_troubleshooting]
    The most common one. If you only see model calls, the instrumentation isn't wrapping the full agent run, so tool calls are
    missing, which is often where the interesting failures live.
    
    

 2. Traces are flat, no nesting
    [https://langfuse.com/docs/observability/best-practices#is-it-nested-correctly?ref=onboarding_emails_v2_2_troubleshooting]
    A good trace of an agent with multiple steps and turns, is usually nested such that all relevant observations are grouped
    under the respective parent observation.
    
    

 3. No/incorrect cost attached to generation
    [https://langfuse.com/docs/observability/best-practices#track-model-tokens-and-cost-on-generations?ref=onboarding_emails_v2_2_troubleshooting]s
    For good cost transparency, you want to log full info on the used model, token usage and price to each generation.
    
    

 4. Nothing is showing up at all
    [https://langfuse.com/docs/observability/troubleshooting-and-faq?ref=onboarding_emails_v2_2_troubleshooting]

 
Ask your coding agent to fix it:
 
Please install the Langfuse skill https://github.com/langfuse/skills
[https://github.com/langfuse/skills?ref=onboarding_emails_v2_2_troubleshooting] and help me in getting to a good tracing setup.
 
If anything is not covered here, just hit reply, we read every message. Or book a call
[https://cal.com/team/langfuse/welcome-to-langfuse] and we'll look at your setup together.
 
Best,
Marc
Co-founder, Langfuse (part of Clickhouse)
Links: Roadmap [https://langfuse.com/docs/roadmap?ref=onboarding_emails_v2_2_troubleshooting], Docs
[https://langfuse.com/docs?ref=onboarding_emails_v2_2_troubleshooting], Talk to us
[https://langfuse.com/talk-to-us?ref=onboarding_emails_v2_2_troubleshooting], Example Project
[https://langfuse.com/docs/demo?ref=onboarding_emails_v2_2_troubleshooting]
 
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Accession

nse/langfuse/2026-10-10/3790

From

Marc Klingen · marc@updates.langfuse.com

Sent

10 October 2026 · 20:00 UTC