chore: import upstream snapshot with attribution

examples/integrations/claude-sdk-python/agent/main.py

@@ -0,0 +1,30 @@
+"""Claude Agent SDK (Python) starter — AG-UI server.
+
+Serves the agent (defined in ``src/agent.py``) over AG-UI using the official
+adapter's FastAPI helper: ``POST /`` streams the run, ``GET /health`` reports
+status. Runs on uvicorn (port 8000).
+"""
+
+from __future__ import annotations
+
+import os
+
+from fastapi import FastAPI
+from ag_ui_claude_sdk import add_claude_fastapi_endpoint
+
+from src.agent import adapter
+
+app = FastAPI(title="Claude Agent SDK (Python) Starter")
+# The adapter's helper mounts POST / (streams the run) — the runtime connects here.
+add_claude_fastapi_endpoint(app, adapter)
+
+
+@app.get("/health")
+async def health() -> dict[str, str]:
+    return {"status": "ok"}
+
+
+if __name__ == "__main__":
+    import uvicorn
+
+    uvicorn.run("main:app", host="0.0.0.0", port=int(os.getenv("AGENT_PORT", "8000")))