tools/test_langsmith_setup.py

import os
from langsmith import Client
from dotenv import load_dotenv


def main() -> int:
    load_dotenv()

    print("Tracing:", os.getenv("LANGSMITH_TRACING"))
    print("Project:", os.getenv("LANGSMITH_PROJECT"))
    print("OpenAI-key present:", os.getenv("OPENAI_API_KEY") is not None)

    try:
        client = Client()
        _ = list(client.list_projects())
        print("LangSmith connection: OK")
    except Exception as e:
        print("LangSmith connection: ERROR")
        print(e)
        return 1

    try:
        client.create_run(
            name="langsmith_tracing_smoketest",
            run_type="chain",
            inputs={"test": True},
            outputs={"ok": True},
            project_name=os.getenv("LANGSMITH_PROJECT"),
        )
        print("Tracing: OK (run created)")
    except Exception as e:
        print("Tracing: ERROR (run failed)")
        print(e)
        return 1

    return 0


if __name__ == "__main__":
    raise SystemExit(main())