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Claude Code: from zero to professional. Tips, tutorials and deep dive guides from an engineer who uses it 12 hours a day.
Stop Claude Code asking for permission (without losing control)
Permission prompts in Claude Code don't go away with one setting. There are five levers (rules, modes, auto mode, the sandbox and bypass inside a container), and this guide puts them in the order that cuts the most prompts for the least risk.
Claude Code first steps: the fundamentals that don't expire
The Claude Code fundamentals that don't expire: install, sessions, context, quota, models, permissions. What you actually need to grasp on day 1.
AI: the joy of missing out on what doesn't matter
You can't keep up with AI, and you shouldn't try. The answer isn't resistance or passive acceptance: go all in, but deep on one thing instead of scattered.
modelPicker in Claude Code: trim /model to the models you actually use
modelPicker decides which rows /model lists, in your order and under your labels. With replaceBuiltInOptions: true the rest disappears, and behavesAs removes the unknown-model warning from a gateway or Bedrock ID.
Claude Code idle compaction: it compacts before your cache expires
You step away from a 300K-token conversation. At minute 54 Claude Code compacts it before the cache expires, so your first message back doesn't pay for the whole history again.
Claude Code worktree base branch: why your unpushed commits are missing
worktree.baseRef decides whether a Claude Code worktree gets your unpushed commits. By default it branches from origin/main and leaves them out, subagents included.
Delete Claude Code history: claude purge wipes a project in one command
claude purge deletes everything Claude Code keeps about a project: transcripts, memory, edit history, even your trust in the folder. With --dry-run you see what goes first.
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