Claude Code is an agentic coding tool： 

• understands, edits, commands, integrates 
• terminal, Visual Studio Code, the Claude Desktop app, on the web, and in JetBrains IDEs

What Separates Claude Code from Claude?

• Claude Code has direct access to files, terminal, entire codebase
• The key differentiator is that Claude Code works as an AI Agent.

What is an Agent?

AI Agent is software 

At its core, this works by having a large language model operating in a loop in real time. 

What Can Claude Code Actually Do?

• Read and understand your codebase
• Edit files across your project
• Run terminal commands. 
• Search the web.

Using Claude Code Effectively

• The context window: Claude's working memory
• It asks for permission: always in control
• It can make mistakes.:Claude Code isn't perfect, Staying in the loop helps you