Noisy(@noisyb0y1):Cal Rueb from the Anthropic team just revealed the Claude Code features that 90% of users will never find on their own he writes the system prompt that powers Claude Code - and spent 25 minutes showing how to use it properly > claude md files = memory that persists across every session > Escape twice = jump back in your conversation history > run 4 Claude Codes in parallel and orchestrate them like a team > Claude 4 now thinks between tool calls - throw "think hard" at every bug save this - it's the closest thing to an internal manual for Claude Code you'll ever find for free

2026.06.01 10:30

Cal Rueb from the Anthropic team just revealed the Claude Code features that 90% of users will never find on their own he writes the system prompt that powers Claude Code - and spent 25 minutes showing how to use it properly > claude md files = memory that persists across every session > Escape twice = jump back in your conversation history > run 4 Claude Codes in parallel and orchestrate them like a team > Claude 4 now thinks between tool calls - throw "think hard" at every bug save this - it's the closest thing to an internal manual for Claude Code you'll ever find for free

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