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Setup is short — but the setup choices shape every session afterwards. Get the model, billing, and permissions right on day one.
Claude Code installs as a global CLI. After install you authenticate against your Anthropic account, pick a billing source, and run it inside any project directory. The first run will offer to create a CLAUDE.md and explain how it intends to use your shell.
# Install via the official installer (check the latest docs page first)
npm install -g @anthropic-ai/claude-code
# Authenticate
claude login
# Run inside a project
cd ~/code/my-project
claudeThe minimal install + auth flow. The exact package name and command may shift; the docs page is canonical.On first run, Claude Code asks how aggressively it should ask before running commands. The default is 'ask before any non-read, non-trivial command.' Conservative settings are the right starting point — you can loosen permissions per command type as trust grows.
The big idea: pick a billing mode you understand, accept conservative defaults, and verify the trace before trusting any output.
15 questions · take it digitally for instant feedback at tendril.neural-forge.io/learn/quiz/end-claude-code-install-creators
What is the core idea behind "Installing And Authenticating Claude Code"?
Which term best describes a foundational idea in "Installing And Authenticating Claude Code"?
A learner studying Installing And Authenticating Claude Code would need to understand which concept?
Which of these is directly relevant to Installing And Authenticating Claude Code?
Which of the following is a key point about Installing And Authenticating Claude Code?
Which of these does NOT belong in a discussion of Installing And Authenticating Claude Code?
Which statement is accurate regarding Installing And Authenticating Claude Code?
Which of these does NOT belong in a discussion of Installing And Authenticating Claude Code?
What is the key insight about "Pick once, change later" in the context of Installing And Authenticating Claude Code?
What is the key insight about "Don't put the API key in CLAUDE.md" in the context of Installing And Authenticating Claude Code?
What is the key insight about "From the community" in the context of Installing And Authenticating Claude Code?
Which statement accurately describes an aspect of Installing And Authenticating Claude Code?
What does working with Installing And Authenticating Claude Code typically involve?
Which of the following is true about Installing And Authenticating Claude Code?
Which best describes the scope of "Installing And Authenticating Claude Code"?