This is incredible.
Anthropic just made an insane change to Claude Code that will massively improve your productivity as a developer -- although it might seem scary at first.
Claude Code now automatically executes commands and make tools calls by default when coding -- no more stopping to ask for permission.
It won't do this anymore:
And I know at first glance some developers will be seriously worried about this -- won't this potentially lead to disaster like file/database wipeouts or corruption from unsafe tool calls?
But actually this line of thinking is completely wrong -- especially from what Anthropic discovered from their internal research.
In internal testing conducted by Anthropic across 1,053 paid participants, humans caught disguised dangerous commands only 13.6% of the time. After 50 consecutive permission prompts, detection dropped to roughly 5% as approval fatigue kicked in.
So it looks like it's actually we humans we need to be concerned about when it comes to verifying commands.
So Claude Code now uses a background classifier to automatically know which commands are safe and which aren't.
And the difference was absolutely insane -- the automatic system was almost 7 times better at catching dangerous commands
Claude Code’s background classifier demonstrated a substantial security advantage, identifying and blocking 89% of destructive commands that might otherwise have been executed.
So of course once they saw the massive improvement it only made sense to make it the default in all Claude Code plans -- Pro, Max, and Team.
And this change gives us so many benefits beyond just security.
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