AgentSight and Langfuse

Langfuse centers LLM application traces, observations, scores, and related platform workflows. AgentSight centers the local process boundary and can work when the agent CLI does not expose an integration.

Use Langfuse for instrumented LLM application telemetry.

Use AgentSight for closed-source and system-effect evidence.

Combine the two when both application and host context matter.

Instrumented observations and system effects are complementary

A Langfuse trace can organize LLM observations and application context. An AgentSight profile adds commands, processes, file access, network activity, and local resource behavior around the run.

Choose by the boundary you control

If you own the LLM application and need evaluation or prompt workflows, use application instrumentation. If you need to inspect an existing CLI or verify low-level effects, add AgentSight at the operating-system boundary.

Primary sources

Langfuse observability documentation
AgentSight README