Add Python SDK public API and examples

Co-authored-by: Codex <noreply@openai.com>

sdk/python/examples/12_turn_params_kitchen_sink/async.py

@@ -0,0 +1,75 @@
+import sys
+from pathlib import Path
+
+_EXAMPLES_ROOT = Path(__file__).resolve().parents[1]
+if str(_EXAMPLES_ROOT) not in sys.path:
+    sys.path.insert(0, str(_EXAMPLES_ROOT))
+
+from _bootstrap import ensure_local_sdk_src, runtime_config
+
+ensure_local_sdk_src()
+
+import asyncio
+
+from codex_app_server import (
+    AskForApproval,
+    AsyncCodex,
+    Personality,
+    ReasoningEffort,
+    ReasoningSummary,
+    SandboxPolicy,
+    TextInput,
+)
+
+OUTPUT_SCHEMA = {
+    "type": "object",
+    "properties": {
+        "summary": {"type": "string"},
+        "actions": {
+            "type": "array",
+            "items": {"type": "string"},
+        },
+    },
+    "required": ["summary", "actions"],
+    "additionalProperties": False,
+}
+
+SANDBOX_POLICY = SandboxPolicy.model_validate(
+    {
+        "type": "readOnly",
+        "access": {"type": "fullAccess"},
+    }
+)
+SUMMARY = ReasoningSummary.model_validate("concise")
+
+PROMPT = (
+    "Analyze a safe rollout plan for enabling a feature flag in production. "
+    "Return JSON matching the requested schema."
+)
+APPROVAL_POLICY = AskForApproval.model_validate("never")
+
+
+async def main() -> None:
+    async with AsyncCodex(config=runtime_config()) as codex:
+        thread = await codex.thread_start(model="gpt-5", config={"model_reasoning_effort": "high"})
+
+        turn = await thread.turn(
+            TextInput(PROMPT),
+            approval_policy=APPROVAL_POLICY,
+            cwd=str(Path.cwd()),
+            effort=ReasoningEffort.medium,
+            model="gpt-5",
+            output_schema=OUTPUT_SCHEMA,
+            personality=Personality.pragmatic,
+            sandbox_policy=SANDBOX_POLICY,
+            summary=SUMMARY,
+        )
+        result = await turn.run()
+
+        print("Status:", result.status)
+        print("Text:", result.text)
+        print("Usage:", result.usage)
+
+
+if __name__ == "__main__":
+    asyncio.run(main())