CLAUDE.md

CLAUDE.md files stack up, and every subagent reads the whole stack

~/.claude/CLAUDE.md you, in every repo repo/CLAUDE.md the team, checked in repo/src/CLAUDE.md one folder Main session Opus Every subagent Sonnet or Haiku
๐Ÿ”ŽVerify, never recallCheck that any version, flag or tag exists in the official docs before using it.
โœ‹Ask before external writesShow the exact command, what it changes and how far it reaches, then wait for "go".
๐Ÿ“300-line file limitSmall files stay easy to review for you and cheap to read for the model.
๐ŸงชDrill into blockersChange one variable at a time. Check your own test setup first.