๐ง LangSmith Flashcards
๐ก What is LangSmith?
LangSmith is a developer platform by LangChain for debugging, tracing, and evaluating LLM-powered applications.
๐ Why use LangSmith?
It provides insights into agent behavior, helps troubleshoot failures, and improve performance through trace visualization and feedback.
๐ What are traces in LangSmith?
Traces are records of how your chains/agents executed, showing the flow of prompts, tools used, outputs, and time taken.
๐ ๏ธ What can you debug with LangSmith?
You can debug prompt inputs, intermediate steps, tool calls, LLM outputs, retries, failures, and nested chains or agents.
๐ What kind of metrics does LangSmith track?
Latency, token usage, tool invocation counts, error rates, and agent-level timelines for performance optimization.
๐ How does LangSmith support evaluation?
LangSmith supports both human and automatic evaluations using criteria like correctness, conciseness, and helpfulness.
๐ Is LangSmith integrated with LangChain?
Yes, it’s built for LangChain and integrates deeply with chains, agents, tools, and LangChain Expression Language (LCEL).
๐งช What is LCEL in LangSmith context?
LCEL (LangChain Expression Language) helps define chain logic declaratively, and LangSmith captures its execution traces.
๐ Does LangSmith support multi-agent apps?
Yes, you can trace and debug autonomous agents, track tool interactions, memory usage, and control flow in multi-agent systems.
๐ Is LangSmith free to use?
LangSmith offers a free plan with core features. Paid plans provide more projects, logs, tokens, evaluations, and team access.