feat(llm-analytics): add OpenAI Agents SDK installation docs

contents/docs/llm-analytics/installation/openai-agents.mdx

@@ -0,0 +1,46 @@
+---
+title: OpenAI Agents SDK LLM analytics installation
+platformIconName: IconOpenAI
+showStepsToc: true
+tableOfContents: [
+    {
+        url: 'install-the-posthog-sdk',
+        value: 'Install the PostHog SDK',
+        depth: 1,
+    },
+    {
+        url: 'initialize-posthog-tracing',
+        value: 'Initialize PostHog tracing',
+        depth: 1,
+    },
+    {
+        url: 'run-your-agents',
+        value: 'Run your agents',
+        depth: 1,
+    },
+    {
+        url: 'multi-agent-and-tool-usage',
+        value: 'Multi-agent and tool usage',
+        depth: 1,
+    },
+    {
+        url: 'verify-traces-and-generations',
+        value: 'Verify traces and generations',
+        depth: 1,
+    },
+]
+---
+
+<!--
+This page imports shared onboarding content from the main PostHog repo.
+Source: https://github.com/PostHog/posthog/blob/master/docs/onboarding/llm-analytics/openai-agents.tsx
+See the docs runbook for more info: https://posthog.com/handbook/content/docs-runbook
+-->
+
+import { OpenAIAgentsInstallation } from 'onboarding/llm-analytics/openai-agents.tsx'
+import { OnboardingContentWrapper } from 'components/Docs/OnboardingContentWrapper'
+import NotableGenerationProperties from '../_snippets/notable-generation-properties.mdx'
+
+<OnboardingContentWrapper snippets={{ NotableGenerationProperties }}>
+    <OpenAIAgentsInstallation />
+</OnboardingContentWrapper>