> ## Documentation Index
> Fetch the complete documentation index at: https://arize-ax.mintlify.site/docs/llms.txt
> Use this file to discover all available pages before exploring further.

# Instrument

> Guides for instrumenting and tracing your LLM and agent applications with Arize AX.

Hands-on guides for the **Instrument** stage of the AX workflow: capturing traces and spans from your LLM and agent applications.

<CardGroup cols={2}>
  <Card title="OpenInference Best Practices" href="/ax/cookbooks/instrument/openinference-best-practice">Enrich auto-instrumented traces with LLM, tool, agent, chain, and session attributes.</Card>
  <Card title="Tracing Integrations" href="/ax/cookbooks/tracing-integrations">Use Arize integrations to automatically collect LLM traces.</Card>
  <Card title="Tracing & Evaluating a Customer Support Agent" href="/ax/cookbooks/instrument/tracing-and-evaluating-agents">Create and evaluate a custom support agent with Arize AX to improve performance.</Card>
  <Card title="OpenAI Agents Guide" href="/ax/cookbooks/instrument/openai-agents-cookbook">Create and evaluate agents with the OpenAI Agents SDK in Arize AX.</Card>
  <Card title="Tracing AI Coding Agents" href="/ax/cookbooks/instrument/tracing-coding-agents">Capture sessions, turns, and tool usage from Claude Code, Cursor, Codex, and more.</Card>
  <Card title="Tracing a Vercel Eve Agent" href="/ax/cookbooks/instrument/tracing-a-vercel-eve-agent">Scaffold a Vercel Eve agent and add Arize AX observability through OpenTelemetry.</Card>
  <Card title="Dual Tracing into Databricks Unity Catalog and Arize AX" href="/ax/cookbooks/instrument/dual-o-tel-ingest-into-unity-catalog-and-arize-ax">Split-stream OpenTelemetry traces into both Arize AX and Databricks Unity Catalog.</Card>
</CardGroup>