I Put a Ten-Line Promise File at the Top of the Folder I Gave Cowork
I kept retyping the same cautions every time I asked Cowork for help. One CLAUDE.md file at the top of the folder settled it. Here are the three things worth writing, how to check it is being read, and how to cut it back when it grows.
Claude API × Python in Practice: Building an AI Assistant with Tool Calling and Streaming
A practical guide to combining Claude API's Tool Use and Streaming in Python. Build a working AI assistant with real tool execution, complete source code included, plus a breakdown of the tricky parts that trip up most developers.
Testing Stripe Webhooks Safely with Claude Code: Three Practical Local Workflows
Reproduce Stripe webhook failures locally with confidence. Three practical patterns combining Claude Code with Stripe CLI, signed payload replay, and idempotency checks — with full working code.
Build a PDF Analysis and Summarization App with Claude API — Vision plus Extended Thinking
Learn how to build a PDF analysis and summarization application using Claude API's Vision capabilities and Extended Thinking, with step-by-step Python implementation.
Getting Started with Claude — From Sign-Up to Your First Conversation in 10 Minutes
A beginner's guide to Claude. Learn how to create an account, start your first conversation, and write effective prompts in just 10 minutes.