Advanced - Claude Code Blog

Plan Mode is the difference between agents that ship the right thing and agents that confidently ship the wrong thing. Here's how it works, when to use it, and the habits that turn it into your biggest reliability lever.

Worktrees are the single biggest unlock for running multiple Claude Code agents at once without conflicts. Here's how they work, when to use them, and the failure modes that take down most teams the first week.

Anthropic just launched its first official certification — the Claude Certified Architect. Here's what it covers, who it's for, and how to prepare.