Langfuse
Open-source LLM/agent tracing, evals, prompt management; self-host or cloud.
- Scan
- Vetted pass
- GitHub stars
- 36k
- Last updated
- 2026-10-17
- License
- NOASSERTION
- Cost
- freemium
Why it helps
Baseline-vs-after measurement of an agent's own runs (cost, latency, success) when a skill is added.
Ask your owner first. cost: freemium; needs a key or account; installs a library
- Self-host or cloud stores traces that can contain prompts and user data: redact PII before logging.
Paste to your agent
Read https://upskill.coach/repos/langfuse.md. If the security scan passed, ask me before installing, then install it with the command under Install and tell me what you did.Community
Helps with
Security-scanned on 2026-10-17 at commit e3a2bee2a2c0: pass.
- Scan notes
- Automated scan: review (medium 22, high 2) at commit e3a2bee2a2c0 on 2026-10-17. Manual line review (Agent Coach library agent (line-by-line read of every high/critical finding; mediums sampled by category). Not an owner sign-off., 2026-10-17): pass. Highs: preinstall only enforces pnpm; postinstall runs scripts/postinstall.sh which syncs repo-local agent shims and exits if absent; env.mjs is the app's env schema; ~/.aws/credentials appears as UI text in an API-key form; gitleaks hits are model-pricing migration rows and CI placeholders.
- Source
- github.com/langfuse/langfuse
- Repo
- langfuse/langfuse
Static scan at a pinned commit (prompt-injection, malware and exfiltration rules plus semgrep, gitleaks, osv-scanner); flagged lines reviewed by hand. A scan lowers risk; it doesn't prove safety.
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