AI FAST DEV
Practical techniques to maximize development speed with AI.
24 articles
Claude Code Router is a community-developed OSS proxy/router that distributes Claude Code requests across multiple providers such as OpenRouter, DeepSeek, Ollama, and Gemini. This article explains how to set up the tool and the design decisions behind automatic model switching in production.
Learn how to define design tokens, component rules, and tech stack constraints in CLAUDE.md to get consistent, production-ready code from Figma designs using Claude Code.
A practical guide to Claude Code's ultrathink mode — when deeper reasoning pays off, when it doesn't, and how to integrate it into your real development workflow.
What is OpenAI's Codex? This guide covers how to write effective instructions, compare it with Claude Code and Cursor, stabilize output with Agents.md, and avoid common pitfalls in parallel workflows.
Cursor's UI localization and AI response language are two separate settings. Learn the correct setup for Japanese Language Pack, .cursorrules language config, and what to do when settings don't stick after updates.
A practical guide to fixing newline input issues in Claude Code CLI, preventing accidental prompt submissions, and handling line ending mismatches in your development workflow.
Learn how to pass images to Claude Code, decompose prompts for higher UI fidelity, and run efficient fix loops using screenshots for design reproduction workflows.
I tested Google's AI design tool Stitch hands-on. For standalone web pages, it's not much different from existing AI tools—but for smartphone app mockups, it has clear strengths. Here's a breakdown of its real capabilities and limitations as an ideation tool.
CLAUDE.md for Claude Code works perfectly fine written in Japanese. This guide covers placement strategies, effective writing templates, anti-patterns that cause instructions to be ignored, and practical configuration strategies for real-world use.
There's more than one way to run Claude Code on Windows. This guide covers the characteristics and failure patterns of WSL, Git Bash, and PowerShell, along with the recommended installation steps as of 2026—all based on real experience.
A complete walkthrough from installing Claude Code to authentication and completing your first bug fix. Covers everything you wish you'd known before starting, including how to use it alongside VSCode and initial settings to prevent billing surprises.
A design guide covering parallel development from Claude Code subagents to agent teams and external orchestration. Covers responsibility separation between parent and child agents, halt conditions, and cost allocation.
From integrating Claude Code Action into GitHub Actions to automating PR reviews, Issue handling, and PR branch creation—covering concrete YAML configurations, prompt design for better review accuracy, and role separation that keeps operations from falling apart.
Adding MCP to Claude Code unlocks integration with external services. Here's how one developer went from avoiding MCP entirely to using it safely — with setup instructions and three practical patterns.
Learn how to turn repetitive instructions into reusable Skills in Claude Code, automating reviews, tests, and external integrations with three practical patterns: Quality Gate, Scheduled Execution, and External Integration.
A practical guide to choosing between Claude Cowork and Claude Code, based on hands-on experience. Fixed tasks get programmed; tasks requiring judgment go to agents — here's where to draw the line, and an honest look at where things stand today.
We planted 18 deliberate flaws in an e-commerce cart API and had both tools review the same code under identical conditions. Claude Code excelled at domain logic, while Codex stood out on security attack chains. Here's how to combine them for near-zero blind spots.
For those who've installed Cursor but aren't getting the most out of it. This guide covers everything from using Tab completion, inline editing, and chat effectively to configuring Rules and setting up MCP integrations—practical steps to speed up your development workflow.
OpenAI's official plugin now lets you run Codex code reviews directly from Claude Code. This guide covers everything from installation to real-world workflow, based on hands-on experience.
A practical guide for engineers on which skills to develop and how to deliver value in the AI era, organized around the real challenges that emerge after adopting AI tools.
This guide breaks down Claude Code's pricing into three models—Pro, Max, and API pay-as-you-go—and explains which usage patterns drive up costs and how to keep spending under control. It covers everything from choosing the right plan to designing a cost structure for team adoption.
Claude Code and Cursor may both be AI coding tools, but their origins and primary strengths are quite different. Here's a practical framework for choosing the right tool for each task, based on real-world experience.
In the age of AI-generated code, what truly changes is the developer's role itself. A practical, experience-based guide to restructuring your design, implementation, and review workflow around AI.
Here are five fundamental differences I noticed after migrating from VSCode to Cursor, based on real experience. From how you pass context, to how you accept suggestions, to how you configure rules — everything you need to make an informed decision.
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