LangChain: Build Agents by Lifecycle
LangChain · x · 2026-07-18
LangChain argues that **Agents are not regular software** because they handle massive inputs and produce non-deterministic outputs. Building them using traditional software methods is prone to failure. They propose an agent development lifecycle centered around **LangSmith**: 1. **Build**: Construct the agent 2. **Test**: Test behaviors and outcomes 3. **Deploy**: Launch and deploy 4. **Monitor**: Continuously monitor The core takeaway is that agents require a dedicated engineering process, rather than the single-release mindset of traditional software.
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