Why LangSmith Isn't Enough

Tracing vs. Tasting

If your engineering team uses LangChain, they likely use LangSmith. It is essential infrastructure for tracing complex LLM calls and debugging chains. However, relying on LangSmith to answer the question "Is this agent representing our brand correctly?" is like using a server monitoring tool to grade a copywriter.

Assay sits above the infrastructure layer. We extract your "Brand Canon" and use it to evaluate the actual conversational output. We don't trace the code; we taste the result. This gives Product Managers the definitive "Yes" or "No" they need to ship with confidence.