The terminal, files, sessions, the context window, tokens and permissions - explained after you've used them for a week.
- 4.1
What the terminal isA 50-year-old text window that talks directly to your computer - and why Claude Code lives in it.
- 4.2
Terminal appsTerminal, PowerShell, VS Code, Cursor and the paid apps all run the same Claude Code. The question every live session asks, answered.
- 4.3
Files and folders are the workspaceClaude stands in the folder you started it in - that's how you control what it can touch.
- 4.4
SessionsOpen with a goal, work in short instructions, close by taking stock. Several tabs means several sessions.
- 4.5
The context windowClaude's working memory for 1 session, and the single most important mechanic in Claude Code.
- 4.6
Tokens and modelsRoughly 3 words for every 4 tokens, resent with every message - and the 4 things that load before you type.
- 4.7
PermissionsManual, accept edits, auto - what each mode asks about and when each is safe.
- 4.8
The 3 layers of memoryThis session, CLAUDE.md, Supabase - what lives where and for how long.
- 4.9
Change how Claude Code worksThe settings screen most members never open - how Claude replies, which model it starts on, how much it asks.