A third branch on paper

Branch A: local runner.

Branch B: mock, labeled mock.

Branch C: cloud, key from the environment, region written down.

The golden set runs on whichever branch you actually have.

Sources and go deeper

Amazon Bedrock overview vendor last checked 2026-10
Azure OpenAI documentation path vendor confirm On 2026-10 this URL opened a Microsoft Foundry models page, not a page titled Azure OpenAI. last checked 2026-10
Vertex AI documentation path vendor confirm On 2026-10 this URL opened Gemini Enterprise Agent Platform docs, not a page titled Vertex AI. last checked 2026-10
Cloud computing — Wikipedia wikipedia last checked 2026-10