Claude Code
Anthropic's agentic command-line interface for the terminal.
Agentic Reasoning
Most CLI tools are passive. Claude Code is active—it observes, plans, and applies multi-step edits with the same sophisticated reasoning as the web version.
Anthropic Trust Layer
Built with security and alignment first. It asks for permission before running potentially destructive terminal commands, ensuring you stay in control.
Universal Search
Search through code, documentation, and even recent terminal history within a single conversation for unparalleled developer context.
Claude Code is a research preview from Anthropic that brings the power of Claude 3.5 Sonnet directly into your terminal as a high-functioning agent.
Terminal Native
It doesn't just suggest code; it reads your files, runs your terminal commands, and fixes errors in a tight loop. It's designed for developers who never want to leave the command line.
The Workflow
Use it for complex tasks like 'Refactor this entire directory to use Tailwind CSS v4' or 'Find and fix all the security vulnerabilities in this auth module.' It plans, explains, and then executes.
Install: npm install -g @anthropic-ai/claude-code