In the news
Trajectories now in LangSmith: A readable view of every agent session
LangChain · Published · 3 min read
In 30 seconds
- What happened
- LangSmith added Trajectories, a chronological view of agent sessions that shows messages and actions in order without nested execution details.
- Why it matters
- Engineers debugging multi-turn agent workflows need to understand agent behavior quickly without parsing complex execution traces.
- Watch out
- Trajectories are a simplified view for understanding behavior; you still need full traces to inspect execution details like timing, retries, and nested runs.
- agent
The patterns behind this
- Agent-Readable Web (llms.txt / NLWeb)
- Reversible Actions & Compensation (Agent Saga)
- Agentic Context Engineering (Evolving Playbook)
Each one covers how the technique works, when it earns its cost, and where it breaks.
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