Anthropic open-sourced 11 production plugins covering sales, legal, finance, data, and more. Here is what is inside, how to install Claude Code plugins, and how to customize them for your team.
A complete tutorial on building an AI agent from scratch in Python — no LangChain, no framework. Just the Anthropic SDK, a tool-use loop, and ~60 lines of code that you fully understand and control.
Claude Code is Anthropic's CLI agent that reads your codebase, writes code across files, runs tests, and commits to git. Here's how to use it like a senior engineer on your team.