Claude Code's Auto Mode Now Default on Major Cloud Platforms

Anthropic shipped Claude Code 2.1.207 on Friday, and the one-line changelog entry hides a more interesting story than the headline suggests. Auto mode is now on by default on Amazon Bedrock, Google Vertex AI, and Microsoft Azure Foundry. The auto-mode classifier — a second model that reviews every pending file edit, build, commit, and pull request against the conversation context before execution — has been an opt-in feature since Claude Code launched in early 2026. After Friday's update, every enterprise team running Claude Code through those platforms has it on by default.

The reasoning Anthropic published alongside the change is the part worth sitting with. Their own telemetry found that 93% of prompts in manual mode were approved reflexively, without actual review.

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