Python SDK

Add Bench using https://docs.usebench.ai/sdk/python and the installation source
and setup key from my Bench SDK page. Keep the key server-side. Label the
environment and start with metadata-only capture. Wrap one real request and
its tools, including async context propagation. Flush a synthetic interaction
and confirm it arrived in Bench. Show changed files and remaining setup steps.

import os
from bench_sdk import Bench

bench = Bench(
    api_key=os.environ["BENCH_API_KEY"],
    repository=os.environ["BENCH_REPOSITORY"],
    branch=os.environ["BENCH_BRANCH"],
    endpoint=os.environ["BENCH_API_BASE_URL"],
    system_name="Support agent",
    environment="staging",
)

with bench.trace("connection-check", kind="AGENT") as span:
    span.set_output({"ok": True})

bench.shutdown()