Introducing LangSmith Custom Apps: Build custom interfaces around your agent data

Introduces LangSmith Custom Apps, a new capability allowing users to build and deploy custom user interfaces directly within LangSmith. These apps can be built using templates and AI-guided coding, and are designed to visualize and interact with LangSmith data such as traces, feedback, and agent behaviors. Enterprise users can leverage LangSmith Chat to generate these custom UIs via natural language prompts. This directly extends the agent development lifecycle by providing flexible and tailored interfaces for analyzing and interacting with agent data.