Claude Code Shifts to Manual Approval by Default

UpdatedJuly 8, 2026

The Auto mode architecture in Claude Code is genuinely worth studying. A two-stage ML classifier running on Claude Sonnet 4.6 sits in front of every tool call, evaluating whether the call should run before it executes. Anthropic shipped it on March 24, 2026, and the design choice that matters most is the one that doesn't show up in any marketing: the classifier is reasoning-blind by design. It sees only user messages and tool calls, not Claude's own text responses and not the content of tool results.

That single constraint is a defense-in-depth decision.

This is an excerpt. Read the full post at otf-kit.dev/blog/claude-code-defaults-manual — full-stack kits your AI coding agent can actually ship to production. Browse the kits →

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