Anthropic is making Claude Code auto mode the default for new sessions across Pro, Max, and Team plans starting August 14, 2026, replacing frequent permission prompts. The shift addresses confirmation fatigue, where users click through approvals without reading them. Auto mode uses a classifier to inspect each tool call for irreversible, destructive, or out-of-bounds actions, falling back to manual approval if blocks accumulate. Anthropic will no longer charge for the extra tokens the classifier consumes. Team and Enterprise customers using auto mode reportedly ship about 25% more pull requests than those relying on manual approval. In a study across 1,053 paid testers, a routine prompt was swapped for a dangerous command, and only 13.6% of humans refused the harmful action, while auto mode blocked it 89% of the time. Human vigilance dropped to roughly 5% after 50 prompts. The 89% block rate leaves 11% of dangerous commands slipping through, a gap Anthropic acknowledges. The company continues to recommend human review for changes touching production systems. Independent commentary from developer and researcher Simon Willison suggests the story is more nuanced than a simple safety win.