Persona vectors: Monitoring and controlling character traits in language models

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Subliminal learning: Models transmit behaviors via hidden signals in data

Claude Code introduces specialized sub-agents

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Anthropic signs a $200M deal with the Department of Defense

Claude Code now supports hooks

How Anthropic teams use Claude Code

There’s a better way to use AI official prompts

Project Vend: Can Claude run a small shop? (And why does that matter?)