#claude-code articles

claude 9routerとは？Claude Codeの設定方法・料金・注意点

claude 9routerを調べている人向けに、9Routerの仕組み、Claude Codeとの接続手順、料金の考え方、モデル切り替え、認証情報を扱う際の安全面を公式資料とともに解説。無料ソフトと無料モデルの違い、導入前に確認すべき規約・設定も整理します。

529 overloaded claude codeの意味と対処｜復旧までの手順

Claude Codeに表示される「529 Overloaded」「overloaded_error」の意味を、429・500との違い、復旧を早める待機・再試行・モデル切替、再発時の確認項目まで整理。公式ドキュメントをもとに、連打を避けて安全に作業へ戻る手順を紹介します。

Claude Mac Numbers連携｜表計算を安全に自動化する方法

MacでClaudeやClaude CodeからApple Numbersを扱いたい人向けに、AppleScript・JXA・PyXA・連携サービスの違いを比較。導入手順、macOSの権限設定、CSV／XLSX互換性、失敗しにくい指示例、安全な運用方法まで具体的に整理します。

Chat for Claude Codeとは｜VS Codeで迷わない導入手順

Chat for Claude Codeは、Claude CodeをVS Codeのチャット画面で操作できる第三者製拡張です。公式拡張との違い、必要な環境、インストールから初回起動、チェックポイント・履歴・MCPの使い方、安全な権限設定、起動しない場合の確認順まで整理します。

Claude Code 401エラーの原因と解決法｜APIキー・OAuth再設定

Claude Code で 401 authentication_error が出る原因を5つ解説します。ANTHROPIC_API_KEY 誤設定・OAuth トークン期限切れ・Bedrock 認証情報不備まで、コマンド例付きで解決できます。

new claude release 総まとめ｜Fable 5・Opus 4.8 最新動向

Claude の新リリースを時系列で整理。Opus 4.8(5/28)・Fable 5 と Mythos クラス(6/9)・Sonnet 5(6/30)の要点、Claude Code の週次アップデート、公式リリースノートの追い方まで解説します。

Claude CodeのTUI活用術｜fullscreenモードとテーマ設定

Claude Code の TUI(ターミナル UI)を快適にしたい人向けに、v2.1.110 で追加された /tui fullscreen のちらつき解消、CLAUDE_CODE_NO_FLICKER、カスタムテーマ、/terminal-setup、周辺 TUI ツールまで公式情報ベースで整理。

Claude Code を yum/dnf で入れる｜公式RPMリポジトリ設定

「yum install claude code」で見つからないのは公式RPMリポジトリの設定が前提だから。RHEL・CentOS Stream・Rocky・AlmaLinux・Fedora で /etc/yum.repos.d に署名済みリポジトリを追加し dnf(yum)で導入する手順を、公式ドキュメントベースで整理します。

Claude Code のちらつき解消｜NO_FLICKER と fullscreen 設定

Claude Code のターミナルが点滅・スクロール暴走する悩みを解消する NO_FLICKER(フルスクリーンレンダリング)を解説。有効化コマンド、マウス対応、tmux での注意点、元に戻す方法まで公式ドキュメントをもとに整理する。

Claude Code 背景エージェントが PR 草案を自動作成｜v2.1.198

Node.js は Claude Code に必要か｜18以上とネイティブ版

「node js claude code」で調べる人向けに、Claude Code に Node.js が必要かを整理。npm 版は Node.js 18 以上が前提、推奨のネイティブ版なら Node.js は不要という違いを、バージョン確認と導入手順つきで公式情報ベースに解説する。

Nuxt MCP を Claude Code に接続する設定と使い分けの手順

Nuxt MCP を Claude Code に接続する方法を、公式リモート MCP・antfu のローカル版・自作サーバーの3系統に整理。claude mcp add コマンド、公開ツール、そして「本当に必要か」の判断基準まで実務目線でまとめる。

Claude Code が作る削除できない nul ファイルの原因と対処法

Claude Code を Windows で使うとプロジェクト内に削除できない nul ファイルが現れる。NUL 予約デバイス名が原因で通常の削除では消えないこの現象を、UNC パス指定での削除方法と再発を防ぐ設定まで手順で解説する。

Claude Code ネイティブインストール｜npmから移行と自動更新

Claude Code のネイティブインストールを解説。Node.js に依存しない公式推奨方式の導入コマンドを OS 別に整理し、npm グローバルからの移行、~/.local/bin での確認、自動更新チャンネル、アンインストールまで Anthropic 公式情報ベースでまとめます。

Claude Code の使い方｜導入から初回コミットまで手順解説

Claude Code を初めて使う開発者向けに、インストール・ログインから最初の質問・コード修正・Git コミットまでの操作手順を解説。ネイティブインストールの curl コマンド、claude や -p などの CLI、/help・/clear・/login のスラッシュコマンド、成果を出すプロンプトのコツまで実際の例で整理します。

Claude Code settings.json 設定｜4スコープと権限・環境変数

Claude Code の settings.json の置き場所(User/Project/Local/Managed の4スコープ)と優先順位、permissions の allow/ask/deny、model・env・hooks など主要キーの書き方を実例 JSON で整理する。

oh-my-claudecode とは｜Claude Code をチーム開発化する使い方

oh-my-claudecode(OMC)は Claude Code を19の専門エージェントによるチーム開発環境へ拡張する人気の OSS プラグインです。概要・インストール方法・/team や /autopilot などの主要コマンド・導入時の注意点までまとめて整理します。

Everything Claude Code とは｜GitHub 設定集の中身を解説

GitHub で話題の OSS『Everything Claude Code』を整理。サブエージェント・スキル・コマンド・フックの中身、install.sh やプラグインでの導入手順、AgentShield などのセキュリティ機能、同名リポジトリの見分け方まで一次情報ベースで解説する。

Anthropicエンジニアが語る「Loop Engineering」と認知負荷対策

AI生成コードで「理解できないまま前進する」認知負荷問題を論じた「Loop Engineering」論文を解説。「コードを書く人」から「ループを設計・管理する人」への転換点と、Claude Codeを活用して理解を確認しながら前進する実践的な思考法を整理する。

Claude Code で 3D モデリング｜Three.js・OpenSCAD の実践手順

Claude Code を使って Three.js・OpenSCAD・Blender Python で 3D コンテンツを生成する実践ワークフローを解説。プロジェクト構成から効果的なプロンプト設計・CLAUDE.md 設定まで、コードで 3D 制作速度を高める具体的な手順をまとめた。

Claude Code はオープンソースか｜ライセンスと公開の実態

Claude Code はオープンソース(OSS)ではなく、Anthropic の商用ライセンス製品です。GitHub にリポジトリが公開されていますが、ソースコードの改変・再配布は禁止。npm 配布の歴史やライセンスの中身を整理します。

Roo Code vs Claude Code｜機能・料金の違いと廃止後の選択肢

Roo CodeとClaude Codeは設計思想が大きく異なるAIコーディングツール。機能・料金・対応モデルの違いを比較し、2026年5月のRoo Code廃止経緯とCline・ZooCodeへの移行先も解説します。

npm install で迷うClaude系4パッケージ｜用途別の選び方

「npm install anthropic ai claude code」で何を入れるべきか迷う開発者向けに、Claude Code CLI・公式SDK・Vercel AI SDKプロバイダ・Agent SDKの4パッケージを用途別に整理し、正しいインストールコマンドと最小コードを公式情報ベースで解説する。

Claude Code は誰でも使える？プラン別できることと始め方

Claude Code 最強の使い方｜開発速度を10倍にする実践テクニック

CLAUDE.md活用・探索→計画→実装の3ステップ・検証方法の事前渡し・Skills/Hooks自動化など、Claude Codeの性能を最大限に引き出す実践テクニックをAnthropicの公式ベストプラクティスをもとに解説します。

How to Log Out of Claude Code | Commands and Account Switching

Claude Code New Features Explained | Centralized MCP Approval and Artifact Utilization

Claude Code v2.1.183 Blocks Destructive Operations in Non-Interactive Mode

Implement with Claude, Review with Codex | A Division-of-Labor Approach to Higher Code Quality

Claude Design | Explaining the Bidirectional Design-Code Integration

How to Use Claude in WebStorm | JetBrains AI Setup Guide

What You Can Do with Claude × Val Town | Townie AI, MCP, and Instant Deploy

claude update Command | When to Use Automatic vs. Manual Updates

How to Use Claude Thinking Mode | Boost Accuracy with ultrathink

Claude Code v2.1.178 Nested Skills and Permission Settings for Team Operations

How to Use Claude Terminal | CLI Introduction for Mac, Windows & Linux

How Claude Task Works and How to Use It | From Task Creation to Parallel Execution

How to Use Claude Talk | Voice Conversation & /voice in Japanese

Building a SaaS with Claude: Authentication, Database, and Billing for Solo Developers

A practical guide to building a SaaS from scratch as a solo developer using Claude — covering three phases: prototyping with Artifacts, full development with Claude Code, and post-launch operations. Includes how to set up authentication, databases, and subscription billing, plus deployment and real cost expectations, based on official documentation and real indie developer case studies.

How to Use Claude with Rider | Setup Guide for .NET and Unity

Auto-Generate Videos with Claude Code + Remotion | Setup Guide and Code Examples

Refactoring with Claude | A Practical Guide to Cutting Code by 50%

React Development with Claude | Automatic Component Generation and State Management

Claude Code × Nuxt.js | How to Use DevTools Integration and Skills

Claude Code and Nushell | Workarounds for Launch Errors and Using Skills

What Is Claude's 'Nucleating'? How Spinner Verbs Work and How to Turn Them Off

Claude-Compatible IDEs: Comparing VS Code and JetBrains and How to Choose

What Are Claude Code Hooks | Complete Event List, Configuration & Automation Guide

Using Claude in Cursor | Installation, Usage, and Comparison Guide

A complete guide to installing Claude Code in Cursor, from the one-click cursor:extension/anthropic.claude-code link to the Extensions panel search and manual VSIX installation as a fallback. Covers how to launch it, switch modes, and decide when to use each tool given their complementary relationship.

Claude Hero | The Free Pair Programming Tool That Makes Claude Code 10x Faster

What Is Claude Code Channels | Discord/Telegram Integration Setup and Usage

How to Use Claude's 1 Million Token Context | Pricing, Practical Limits, and Use Cases

How to Use Claude Code | 5 Extensions + 3 Operations from Anthropic's Employee Playbook

A detailed explanation of Anthropic's internal Claude Code playbook. Learn about the 5 extension features — CLAUDE.md, Hooks, Skills, Plugins, and Managed Agents — and 3 operational patterns: team sharing via CLAUDE.md, safety guardrails with hooks, and supervisory models. A step-by-step guide for rolling these out in your team.

Using Claude Code with Warp | Notifications & Code Review Setup

Can You Run Claude Locally? | Closed Weights and Alternatives

For those searching 'run claude locally': a factual breakdown of whether you can run Claude's model on your own hardware (you can't — weights are not public), why that is, the fact that Claude Code itself does run locally, practical workarounds for pointing it at a local LLM, and open-weight alternatives — all based on official information and real examples.

Earn More with Claude Security Reviews | How to Raise Your Freelance Rates

Now that AI-driven vulnerability discovery has become a reality through the Project Glasswing expansion, learn three proven approaches to embed security audits into your freelance or side-project workflow using Claude and Claude Code's general features — no invite-only model required. Covers the full review process, how to fold it into your estimates, and how to handle false positives.

How to Fix Claude Not Working in VSCode | Won't Launch, IDE Not Detected

Installed the Claude Code extension in VSCode but it won't work, won't launch, sign-in never completes, or the IDE isn't detected — this guide walks through solutions by symptom, including official troubleshooting steps and workarounds for the v2.1.51 known bug.

Claude Code vs Codex CLI | Choosing by Price, Model, and Speed

A 5-axis comparison of Anthropic Claude Code and OpenAI Codex CLI across pricing plans, supported models, CLI experience, IDE integration, and automation features. The 2026 latest edition to help you decide which to choose based on your use case.

Why Claude Code Won't Work in Cursor & How to Fix It | Connection Error Solutions

Explains the causes and fixes for Claude Code not working in Cursor. Classifies issues into 5 categories — IDE connection errors, authentication failures, and more. The 'IDE is not connected' error is often resolved by re-running the /ide command.

Claude Code WSL Installation | WSL 2 Sandbox Setup

A step-by-step guide to installing Claude Code on WSL (Windows Subsystem for Linux), based on official Anthropic documentation. Covers the WSL 2 requirement for sandboxing, the Linux install.sh one-liner, the apt repository path, PATH and Git prerequisites, ripgrep support for Alpine/musl, and common pitfalls.

Installing Claude via npm | Avoiding sudo and Updating with @latest

A guide for Node.js developers who want to install Claude Code via npm — covering prerequisites for npm install -g @anthropic-ai/claude-code, why you should avoid sudo, updating with @latest, resolving 'Native binary not found', and WSL pitfalls, based on official Anthropic documentation.

Installing Claude CLI | Common Steps for macOS, Windows, and Linux

For anyone looking to install Claude Code (claude CLI) across operating systems, this guide covers installation paths for macOS / Windows / Linux / WSL, when to use Homebrew, WinGet, apt, or npm, first-time authentication, claude doctor diagnostics, and PATH troubleshooting — all based on official Anthropic documentation.

Claude Mac Update | Auto-Update, brew, and npm Procedures

A complete guide to keeping Claude up to date on Mac, covering three installation paths — native installer, Homebrew, and npm. Includes auto-update behavior, the claude update command, release channel switching, and verification with claude --version and claude doctor, all based on official Anthropic documentation.

Claude Windows Path Issues | where claude and How to Set Up PATH

A one-page reference — based on official Anthropic documentation — for the 'path' issues you'll encounter when using Claude / Claude Code on Windows: where claude.exe actually lives, how to fix 'claude not found' errors when PATH isn't set, the OneDrive home folder problem, and how to write backslash paths in MCP config files.

How to Install Claude on Windows | Choosing Between Desktop and Code

For anyone looking to set up Claude on Windows 10/11: a guide covering when to use the Desktop app versus Claude Code (CLI), the fastest installation methods via MSIX/PowerShell/WinGet, admin privileges and virtualization settings required for Cowork, and common pitfalls — all based on official Anthropic documentation.

Claude in VSCode Pricing | Comparing Pro/Max/API Plans and Monthly Costs

Compare monthly pricing for using Claude Code in VSCode across 6 tiers: Pro, Max 5x, Max 20x, Team, Enterprise, and API pay-as-you-go. The extension is free, Free plans are excluded, and annual discounts are explained using official information.

Using MCP with the Claude Code VS Code Extension | CLI and /mcp Setup Guide

Step-by-step guide to adding and managing MCP servers from the Claude Code VS Code extension. Covers the claude mcp add command, the /mcp management dialog, project sharing via .mcp.json, switching configurations with --mcp-config, and troubleshooting tips.

Claude Code vs Cursor: Pricing, Features, and How to Choose

A breakdown of Claude Code vs Cursor covering pricing, features, and use cases. Claude Code is a terminal-based CLI agent, while Cursor is an AI-native IDE. A combined setup at around $40/month is widely considered the optimal choice for professional development.

Claude × Vercel Deploy | Publish Next.js with /deploy

A guide to using the official plugin for deploying directly from Claude Code to Vercel. Publish to production with a single /deploy command and track build logs in real time with /vercel-logs. Covers the two deployment paths (plugin-based vs. sandbox-based) and the steps to get your Next.js app live.

4-Step Process to Speed Up Legacy Refactoring 5x with Claude Code

A guide to speeding up legacy refactoring an average of 5x with Claude Code using four steps: structure analysis, test-first, incremental refactoring, and regression verification. Includes a real example of cutting 80 hours to 16 hours for business system maintenance, plus a 4-phase estimation framework for contract work that protects your rates.

How to Triple Your Freelance Contract Work Speed with Claude Code

A breakdown of how using Claude Code in contract development can cut total man-hours by 60–70% across three phases: requirements gathering, implementation, and delivery. Covers usage patterns by project type, how to price without passing savings on to clients, and how to build deliverables that generate repeat business.

How to Use Claude in VS Code | Installing the Extension and Getting Started

A step-by-step guide to installing and launching the Claude Code extension in VS Code. Requirements are VS Code 1.98.0 or later — no Node.js needed. Launch from 4 entry points including the Spark icon. Key differentiators: diff preview, Plan mode, and checkpoints. Shares history with the CLI so you can continue conversations with --resume.

How to Use Claude × Supabase MCP | Connection Setup and Read-Only Configuration

A guide to connecting the Supabase MCP server to Claude and configuring it safely. Both Claude Desktop and Claude Code use the same config file, and combining read_only=true with project_ref as a two-layer guard lets you bring database knowledge into your development workflow while preventing production accidents.

Claude 2026 Report | ARR $30B Achieved and Market Share Explained

A breakdown of Anthropic's ARR $30B milestone and market share. Covering the background behind roughly 1,400% year-over-year growth that surpassed OpenAI, the rapid expansion of Claude Code reaching $2.5B ARR on its own, the enterprise-driven structure with 70% of the Fortune 100 as customers, and a look at where Claude still trails ChatGPT and Gemini in traffic.

Claude 2026 Reddit Roundup | The Real Opinions of a 740K-Member Community

Claude Code Automation Guide | How to Use Routines & Headless Mode

A guide to choosing among the four Claude Code automation methods (Routines/Headless/loop/Desktop Schedule), organized by PC dependency, team sharing requirements, and execution limits. Covers the Pro 5/Max 15/Team 25 daily execution caps and how to integrate Headless mode for CI pipelines.

What are Claude Agent Skills | Minimal SKILL.md and How to Create One

How SKILL.md and Progressive Disclosure allow Agent Skills to keep context lean even with 100 skills. Includes custom creation steps and examples.