1. Chatbot vs Agent? A chatbot just answers questions. An agent actually does stuff. It reads your files, runs commands, edits code, and keeps going until the job is done. 2. 5 of Claude Code’s 9 tools: Read, Write, Edit, Bash, Glob, Grep, List Files, Web Fetch, TodoRead/TodoWrite 3. What happens when the context window fills up? It auto-compacts. Basically summarizes the conversation so far to free up space and keep working. 4. Which permission mode for beginners? Normal mode. It asks before it runs anything so you can see exactly what’s happening. Over time you save permissions for commands you trust and it speeds up.