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Test-Driven Refactoring with Claude Code — Safely Modernizing Legacy Code
Learn how to use Claude Code to safely refactor legacy code by adding tests first. Combine TDD principles with AI assistance to eliminate technical debt without breaking existing functionality.
Claude Code Analytics API: Building a Team Productivity Dashboard
A hands-on guide to building a custom productivity dashboard using the Claude Code Analytics Admin API—covering authentication, full pagination, aggregation, cost allocation, and production security.
Claude Memory Now Available to All Users — AI That Learns from Your Chat History
Complete guide to Claude's new Memory feature. Learn how Claude automatically remembers your preferences from chat history, now available to all users including the free plan. Setup, privacy controls, and practical tips.
Automate note Content & Monetization with Cowork: Build a Subscription Business
Discover how to use Cowork and Claude in Chrome to automate note.com membership content creation, analytics, and grow passive income from your writing.
Claude March 2026 Bonus Usage Promotion: Double Your Limits During Off-Peak Hours
Anthropic's March 13–27, 2026 bonus usage promotion explained. Free, Pro, Max, and Team plan users get up to 2x usage during off-peak hours. Learn which hours qualify and how to make the most of this limited-time offer.
Claude Haiku 4.5 — Build Real-Time AI Apps at a Fraction of the Cost
Claude Haiku 4.5: 200K context, SWE-bench 73.3%, Extended Thinking, $1/$5 pricing. When to use Haiku vs Sonnet/Opus, with Prompt Caching and Batch API tips.
Build a SaaS with Claude API × Stripe— to AI Subscription Monetization
Build and monetize an AI SaaS combining Claude API with Stripe. Covers architecture design, billing models, webhook implementation, and churn prevention.
AI Partner — Intermediate Guide: Better Prompts, Memory Workarounds, and Multiple Personas
Ready to go deeper? Learn how to write tighter system prompts, work around Claude's memory limits, prevent character breaks, and run multiple AI personas for different parts of your life.
Claude in Chrome vs. Cowork: Watch It Work, or Let It Run
The real difference between Claude in Chrome and Cowork isn't features — it's how you work with each. First-day pitfalls and safe starter prompts included.
Building an AI Chatbot with Claude API — Streaming, Conversation History & Cost Optimization
A record of building a chatbot on the Claude API from a minimal script upward: conversation history, streaming, a FastAPI endpoint, cost trimming, LINE/Telegram/Discord, and PII masking. The retry logic was rebuilt around measured jitter and the retry-after header.
Building Production-Grade Multi-Agent Systems with Claude Code: Complete Implementation Guide
Master advanced multi-agent orchestration patterns using Claude Code and Agent SDK. Learn parallel execution, dependency management, automatic retries, and dynamic task distribution. Complete implementations for financial analysis, web scraping, and complex workflows.
Claude Haiku 3 Deprecation (April 19, 2026): Complete Migration Guide to Claude Haiku 4.5
Claude Haiku 3 (claude-3-haiku-20240307) is being retired on April 19, 2026. This guide covers the deprecation timeline, what changes, and how to migrate to Claude Haiku 4.5 with ready-to-use code examples.