How to/Log your application

Use tags on nodes

Tag your traces to group and filter workflow data effectively. Add tags to any node type - spans, generations, retrievals, events, and more.

Add tags to a trace

const trace = logger.trace({
    id: "trace-id",
    name: "user-query",
    tags: {
        productId: "instaTravel",
        experimentId: "fastlane",
    },
});

Track tool calls

Track external system calls triggered by LLM responses in your agentic workflows. Tool calls represent interactions with external services, allowing you to monitor execution time and responses.

Use Events to send point-in-time information

Track application milestones and state changes using event logging

Use tags on nodes

Add tags to a trace

On this page