· The Prompt Shelf
Claude Code vs Cursor 2026：実務エンジニアのための正直な比較
Claude CodeとCursorを実際のベンチマークデータとワークフローの違いから比較します。アーキテクチャ・精度・速度・コスト・使い分けの判断基準、そして多くの開発者が採用しているハイブリッド構成まで解説します。
Claude Code Cursor AIコーディングツール 比較 開発者ツール
Blog
JAGuides, comparisons, and best practices for AI coding rules. Learn how to write effective CLAUDE.md, .cursorrules, and AGENTS.md files for your projects.
· The Prompt Shelf
Claude Codeインストール完全ガイド2026——macOS・Windows・Linux全対応
2026年版Claude Codeインストール手順を全プラットフォームに対応して解説します。ネイティブインストーラー・npm・Homebrew・WinGetの方法別解説、よくあるエラーの対処法、AGENTS.md/CLAUDE.mdの初期設定まで。
Claude Code インストール セットアップ macOS Windows
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Claude Code Agent View: Complete Guide to Background Sessions (2026)
Everything about Claude Code's agent view: dispatch tasks with /bg, manage parallel sessions with claude agents, understand worktree isolation, use CLI commands (attach/logs/stop), and decide when background sessions beat subagents.
Claude Code Agent View Background Sessions Parallel Agents 2026
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Claude Code エージェントビュー完全ガイド——バックグラウンドセッション管理の全容（2026年版）
Claude Codeのエージェントビューを徹底解説。/bgコマンドでのセッションバックグラウンド化、claude agentsダッシュボードの操作、ワークツリー隔離の仕組み、CLIコマンド一覧、サブエージェントとの使い分けまで。2026年公式ドキュメント準拠。
Claude Code エージェントビュー バックグラウンドセッション 並列処理 2026
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Claude Code + Supabase: MCP Setup, CLAUDE.md Templates, and Safe Migration Workflows (2026)
Everything you need to connect Claude Code to Supabase: MCP server configuration, copy-paste CLAUDE.md templates for TypeScript/Next.js projects, safe migration patterns, RLS policy instructions, and Edge Functions development workflows.
Claude Code Supabase MCP CLAUDE.md PostgreSQL
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Inside Career-Ops: How Santiago's Skill Bundle Works (Complete 2026 Walkthrough)
A deep technical walkthrough of Career-Ops, the Santiago Fernández skill bundle for Claude Code. Architecture, file-by-file analysis, installation, customization, and the real workflow it enables for ML engineers.
Claude Code Skills Career-Ops Santiago Valdarrama developer workflow
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Claude Code for Python Projects: CLAUDE.md Templates and AGENTS.md Patterns (2026)
A definitive guide to configuring Claude Code for Python projects. Copy-paste-ready CLAUDE.md and AGENTS.md templates for uv/pip, pytest, ruff, mypy, FastAPI, Django, and data science workflows.
Claude Code Python CLAUDE.md AGENTS.md pytest
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Claude Code Subagents: 12 Production-Tested Best Practices (2026 Edition)
12 production-tested best practices for Claude Code Subagents in 2026. Covers definition design, tool restrictions, model selection, context management, error handling, and cost optimization — written by practitioners running subagents in real workflows.
Claude Code Subagents best practices production developer tools
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AGENTS.md, CLAUDE.md, and .cursorrules Templates by Use Case (2026)
The wrong file choice wastes your context budget and trains bad AI habits. 11 use-case templates with file selection rationale, ready-to-copy configurations, and a composition guide for multi-tool setups.
AGENTS.md CLAUDE.md .cursorrules Claude Code AI coding rules
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Claude Code Auto Mode: Complete Guide to the 2-Stage Classifier System (2026)
How Claude Code Auto Mode works under the hood — the 2-stage classifier pipeline, how it differs from --dangerously-skip-permissions, customization via settings.json, and when to actually use it.
Claude Code Auto Mode AI Coding Permissions
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Claude Code チェックポイントと /rewind 完全ガイド 2026
Claude Code のチェックポイントと /rewind で安全にミスを巻き戻す方法を解説。全リストア・要約オプション、Bash の制限、実用パターンまで。
Claude Code チェックポイント rewind セッション管理 2026
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Claude Code Checkpointing & /rewind: Complete Guide 2026
How to use Claude Code checkpoints and /rewind to safely undo mistakes, explore alternatives, and compress session context. Covers all restore and summarize modes, Bash limitations, and real-world recovery patterns.
Claude Code checkpoints rewind session management 2026
· The Prompt Shelf
Claude Code VS Code 拡張機能 完全ガイド 2026
Claude Code VS Code 拡張機能の全機能解説。@メンション、IDE MCPサーバー、診断情報取得、チェックポイントrewind、/mcp管理、キーボードショートカット、ブラウザ自動化まで。2026年6月版。
Claude Code VS Code IDE 拡張機能 MCP
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Claude Code VS Code Extension: Complete Guide 2026
Everything about the Claude Code VS Code extension — @-mentions, IDE MCP server, diagnostics, checkpoint rewind, /mcp management, keyboard shortcuts, and browser automation. Official docs reference, June 2026.
Claude Code VS Code IDE extension MCP
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Claude Code --continue と --resume 完全ガイド2026——セッションコンテキストを二度と失わない方法
Claude Codeのセッション管理を完全解説。--continue, --resume, --fork-session, セッション命名, インタラクティブピッカー, チェックポイントまで網羅。中断したセッションをいつでも正確に再開する方法。
Claude Code sessions productivity CLI developer-tools
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Claude Code --continue and --resume: Never Lose Your Session Context Again
Complete guide to Claude Code session management in 2026. Master --continue, --resume, --fork-session, session naming, the interactive picker, and checkpointing to recover any interrupted session.
Claude Code sessions productivity CLI developer-tools
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Claude Code in GitHub Actions: How to Fix Permission Errors (3 Battle-Tested Patterns)
Running Claude Code in GitHub Actions and hitting permission errors? This guide covers exactly why they happen and how to fix them — with three proven patterns including allowlist config, bypassPermissions mode, and the official claude-code-action.
Claude Code GitHub Actions CI/CD permissions DevOps
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Automated PR Reviews with Claude Code Headless Mode — When Your Reviewer Can't Install Claude
How to run Claude Code PR reviews in GitHub Actions using claude -p — even when reviewers can't install Claude locally. Covers diff passing, automated comment posting, review prompts for security and performance, and cost control with max-turns.
Claude Code GitHub Actions PR review CI/CD headless
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CLAUDE.md Grew to 2,000 Lines and Nobody Read It — Here's How to Fix It
A CLAUDE.md that's too long defeats its own purpose. Here's how to use Claude Code's hierarchical CLAUDE.md system and Import directives to split a bloated root file into a structure that Claude actually reads.
Claude Code CLAUDE.md configuration best practices context management
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claude -p JSON Output Breaks in Production — Fix It with Structured Output
Running claude -p in a pipeline and getting malformed JSON? Here's exactly why it happens, what --output-format json actually does, and how to build a Python implementation with validation and retry.
Claude Code CLI JSON structured output automation
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Claude Code settings.json in Teams: How to Prevent Conflicts and Share Config Safely
Multiple engineers using Claude Code in the same repo will eventually get a settings.json conflict. Here's exactly what to commit, what to gitignore, and how to separate team config from personal config.
Claude Code settings.json team git configuration
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Claude Agent SDK: Build Custom AI Agents with Python and TypeScript (2026)
Complete guide to building production AI agents with the Claude Agent SDK. Covers the query() loop, built-in tools, hooks for audit logging, subagent delegation, session continuity, MCP integration, and permission control with real code examples.
Claude Code Agent SDK Python TypeScript AI Agents
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Claude Code GitHub Actions: Complete CI/CD Integration Guide (2026)
Set up Claude Code in GitHub Actions with the v1.0 GA release. Covers @claude mentions in PRs, automated code review, Bedrock and Vertex AI deployment, skills integration, security best practices, and cost optimization for CI pipelines.
Claude Code GitHub Actions CI/CD Automation developer tools
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Claude Code on Windows 2026: Native Install Guide (No WSL Required)
Claude Code now runs natively on Windows — no WSL, no Linux subsystem. Here's the exact install process for PowerShell and CMD, how Git for Windows affects the Bash tool, and when WSL still makes sense.
Claude Code Windows install PowerShell WinGet
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Claude Code Hooks: Why Your Pre-Edit Hook Is Stopping Everything (And How to Fix It)
Claude Code hooks stop the entire operation when they exit non-zero — here's why that happens, how each hook type behaves differently, and how to design hooks that fail gracefully instead of freezing your workflow.
Claude Code hooks error handling DevOps automation
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Claude Code MCP Servers: GitHub, Sentry, and PostgreSQL Setup Guide (2026)
Step-by-step setup for the three most useful MCP servers with Claude Code: GitHub (PR reviews, issues), Sentry (error triage), and PostgreSQL (direct database queries). Covers OAuth, headersHelper, scope management, and production configuration.
Claude Code MCP GitHub Sentry PostgreSQL
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Claude Code Routines: Schedule, API Triggers, and GitHub Automation (2026)
Complete guide to Claude Code Routines — cloud-scheduled automation that runs when your laptop is closed. Covers schedule triggers, API endpoints, GitHub event triggers, branch permissions, and connector configuration.
Claude Code Routines Automation GitHub Actions CI/CD
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Claude Opus 4.8 Known Issues and Bugs in Claude Code (Updated June 2026)
Six confirmed bugs in Claude Opus 4.8 inside Claude Code: 2-3x token regression, malformed tool-use blocks, missing responses, streaming stalls, false verification claims, and hallucinated tool outputs. Symptoms, workarounds, and whether to downgrade.
Claude Code Claude Opus 4.8 bugs known issues LLM
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Claude Code Memory System: CLAUDE.md, Auto Memory, and Rules Complete Guide (2026)
Master Claude Code's two-layer memory system: CLAUDE.md files for persistent instructions and auto memory for automatic learnings. Includes .claude/rules/, path-scoped rules, the /memory command, and InstructionsLoaded hooks.
Claude Code CLAUDE.md Memory Configuration developer tools
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Claude Code Permission Modes and Rule Syntax: Complete Guide (2026)
The definitive reference for Claude Code's 6 permission modes (default, plan, acceptEdits, auto, dontAsk, bypassPermissions), rule syntax with wildcards, managed policy for teams, and hooks-based enforcement.
Claude Code Permissions Security Configuration Enterprise
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Claude Code Multi-Agent Orchestration: 6 Patterns (2026)
Orchestrator-worker, parallel reviewers, pipeline chains — learn 6 proven multi-agent patterns for Claude Code with real AGENTS.md configs and cost-efficiency benchmarks.
Claude Code Multi-Agent Orchestration AGENTS.md
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Claude Code Secrets Management with 1Password CLI: op run, Shell Integration, and MCP — Complete 2026 Guide
Stop committing .env files. This guide covers three production patterns for vaulting Claude Code secrets in 1Password — op run runtime injection, shell integration (zsh/fish/bash), and the 1Password MCP server — with a decision matrix against Doppler, Infisical, HashiCorp Vault, and SOPS.
AI Claude Code 1Password Secrets Security
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.cursorrules vs CLAUDE.md vs AGENTS.md: 2026 Full Comparison
Three config files, three different jobs. This is the definitive 2026 breakdown of scope, syntax, tool support, and which file wins for Claude Code, Cursor, and Codex CLI workflows.
AGENTS.md CLAUDE.md .cursorrules AI config
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Claude Code + Git Worktrees: Parallel Agents Guide 2026
Run 3–5 Claude Code sessions simultaneously without file conflicts. Covers --worktree flag, isolation: worktree for subagents, .worktreeinclude, tmux setup, and merge strategies.
Claude Code Git Worktrees Parallel Agents developer tools
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Claude Code Hooks: 12 Real-World Automation Patterns 2026
Go beyond desktop notifications. This guide covers 12 production-ready hook patterns — security gates, auto-linting, Slack alerts, audit logs — with copy-paste settings.json snippets.
Claude Code Hooks Automation developer tools
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Claude Code Plan Mode: The Complete Developer Guide (2026)
Plan Mode lets Claude explore your codebase before writing a line. Learn Shift+Tab, /plan, headless flags, plansDirectory, and the Explore→Plan→Implement workflow with real examples.
Claude Code Plan Mode workflow developer tools
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Claude Code Skills vs Slash Commands: Complete 2026 Guide
Skills auto-invoke based on context; slash commands need manual triggers. Learn when each wins, how to combine them, and 10 real-world patterns for your 2026 workflow. See working examples.
Claude Code Skills Slash Commands developer tools
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Claude Code Plugin Marketplace: Complete Guide to Installing, Building, and Publishing Plugins (2026)
Master Claude Code's Plugin Marketplace introduced in 2026. Learn how to discover and install plugins, build your own plugin with skills/hooks/commands, package and publish to marketplaces, and manage scoping.
Claude Code Plugins Marketplace developer tools automation
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.mcp.json Configuration Reference: Complete Guide for Claude Code MCP Setup (2026)
Complete configuration reference for .mcp.json and claude_desktop_config.json. Covers stdio/HTTP/SSE transports, environment variables, scope hierarchy, security settings, and 15+ real-world examples for popular MCP servers.
Claude Code MCP .mcp.json configuration developer tools
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Claude Code Agent Teams: Architecture Deep Dive and Production Patterns (2026)
Complete architectural reference for Claude Code Agent Teams. Covers team lead/teammate model, shared task list, mailbox messaging, Hooks integration, cost analysis, and production patterns with real examples.
Claude Code Agent Teams multi-agent architecture developer tools
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Claude Code Hooks: Complete Reference for All Lifecycle Events (2026 Update)
Master Claude Code Hooks with this complete reference covering all 25+ lifecycle events, exit codes, HTTP/Prompt hooks, Agent Teams integration, CI/CD patterns, and security gates. Updated for May 2026.
Claude Code Hooks automation CI/CD developer tools
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Claude Code MCP Servers: Complete Setup and Configuration Guide (2026)
Set up and configure MCP servers in Claude Code for GitHub, databases, browsers, and custom tools. Covers transport types, authentication, security best practices, and troubleshooting.
Claude Code MCP Model Context Protocol developer tools configuration
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How to Write Claude Code Skills: Complete Developer Guide (2026)
Learn how to create, install, and share Claude Code skills. Covers skill anatomy, frontmatter options, tool restrictions, plugin packaging, and real-world examples for automating code review, deployment, and testing.
Claude Code Skills automation developer tools plugins
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Claude Code GitHub Actions: Complete Setup and Automation Guide (2026)
Set up Claude Code GitHub Actions for automated PR reviews, issue-to-code workflows, and CI/CD intelligence. Covers v1 GA configuration, Bedrock/Vertex setup, cost optimization, and real workflow examples.
Claude Code GitHub Actions CI/CD automation code review
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Claude Code vs Codex CLI 2026: Architecture, Cost, and Real Workflow Comparison
Claude Code and OpenAI Codex CLI compared on architecture, cost, context window, agent systems, and real development workflows. Updated for May 2026 with Opus 4.7 and Codex GA.
Claude Code OpenAI Codex Codex CLI AI coding comparison
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Career-Ops vs LazyApply vs JobScan: Which AI Job Search Tool Wins in 2026?
Career-Ops (44,500+ stars), LazyApply, and JobScan AI are the three dominant AI job search tools in 2026. This comparison breaks down their architecture, pricing, target users, control surface, and the exact scenarios where each wins. Includes decision framework, FAQ, and migration guide between them.
AI Claude Code Skills career-ops LazyApply
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What Is Career-Ops? The 2026 Introduction to Claude Code's Viral AI Job Search System
Career-Ops is the viral Claude Code skill bundle (44,500+ stars in May 2026) that turned one engineer's job search from 740 listings into 1 signed Head of Applied AI offer. This is the 30-second definition, plus what makes it different, who it's for, and where to go next.
AI Claude Code Skills career-ops job search
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Claude Code Subagents: Official Documentation Reference (2026)
The complete, structured reference for Claude Code subagents — built-in (Explore, Plan, general-purpose), custom subagent creation, frontmatter fields, scope priority, tool restrictions, persistent memory, /agents command, hooks, model selection, forking conversations. Based on the official Anthropic May 2026 docs.
Claude Code subagents documentation reference AI agents
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Career-Ops Skills: Complete Comparison of All 12 Modes (2026)
Career-Ops ships 12 distinct skill modes — from URL scanning across 45+ portals to A-F evaluation with 10 weighted dimensions, parallel batch processing via claude -p workers, and STAR interview prep accumulation. This comparison covers what each mode does, when to use it, output format, and how the modes chain together. Based on the official santifer/career-ops repository as of May 2026.
Career-Ops Claude Code Skills job search AI agents
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Does Claude Code Support AGENTS.md? The Complete 2026 Reference
Claude Code does NOT read AGENTS.md directly. The official answer from Anthropic (May 2026 docs) is to import AGENTS.md into CLAUDE.md using @AGENTS.md syntax, or use a symlink. This reference covers the three integration patterns, /init behavior, Windows-specific notes, and what every team using both Claude Code and other agents (Codex, Cursor) needs to know.
AGENTS.md CLAUDE.md Claude Code integration AI coding
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Caveman.MD: The Complete 2026 Guide to AI Agent Token Compression (65% Output Reduction, v1.8.2 Update)
Caveman is the AGENTS.md ruleset and Claude Code plugin that compresses AI agent outputs by an average of 65% without losing technical accuracy. Full breakdown of the 4 compression levels, 10 rules, benchmarks, cavecrew multi-agent pattern, /caveman-stats measurement, OpenClaw/opencode integration, and how it fits with AGENTS.md, CLAUDE.md and the broader rule-file ecosystem.
AI Claude Code AGENTS.md Skills Caveman.MD
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Claude Code Plugins: The Complete 2026 Reference (7 Component Types, plugin.json, Marketplace)
Every Claude Code plugin component in one page — verified against Anthropic's May 2026 docs. Cover Skills, Agents, Hooks, MCP servers, LSP servers, Monitors, Commands, the plugin.json schema, .claude-plugin/ structure, marketplace distribution, and production patterns.
AI Claude Code Plugins Skills Subagents
· The Prompt Shelf
How to Use Career-Ops on Claude Code: From Zero to First Application in 30 Minutes (2026)
Step-by-step tutorial for using Career-Ops — the viral Claude Code job-search system. CV onboarding, portal scanning, batch evaluation, application tracking, and the exact prompts to drive each of the 14 skill modes. Verified against the GitHub source as of May 2026.
AI Claude Code Skills career-ops tutorial
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Windsurf Rules vs Cursor Rules vs AGENTS.md：設定ファイル徹底比較（2026年版）
Windsurf Rules（global_rules.md）、Cursor Rules（.cursorrules/MDC形式）、AGENTS.mdを横断比較。スコープ・構文・マイグレーション手順を解説。
Windsurf Cursor AGENTS.md AIコーディングルール 比較
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Claude Code Hooks: The Complete 2026 Production Reference (32+ Events, 5 Handler Types, Exit Code Semantics)
Every Claude Code hook event in one page — verified against Anthropic's May 2026 docs. Cover all 32+ event types, 5 handler types (command/http/mcp_tool/prompt/agent), matcher patterns, exit code 2 blocking semantics, JSON input/output schemas, and production patterns.
AI Claude Code Hooks AGENTS.md Reference
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Roo Codeルール完全ガイド: .roo/rules/、カスタムモード、モード別指示（2026年版）
Roo Codeのカスタムインストラクション完全解説。.roo/rules/ディレクトリの設定、カスタムモード（Architect、Debug、Code）の作成方法、モード別ルールの書き方を実例付きで解説します。
Roo Code AIコーディングルール カスタムモード 開発ツール VS Code
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Roo Code Rules Guide: Custom Modes, .roo/rules/, and Mode-Specific Instructions (2026)
Complete guide to Roo Code custom instructions. Learn how to set up .roo/rules/ directory, create custom modes (Architect, Debug, Code), and write mode-specific rules for your project.
Roo Code AI Coding Rules Custom Modes Development Tools VS Code
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AGENTS.md vs CLAUDE.md vs .cursor/rules: The Complete 2026 Three-Way Comparison (with Migration Paths)
AGENTS.md, CLAUDE.md, and .cursor/rules each solve AI coding configuration differently. We compare all three on scope, frontmatter, scoping, imports, and rule activation — verified against Anthropic and Cursor 2026 docs — plus migration paths between them.
AI Claude Code AGENTS.md CLAUDE.md Cursor
· The Prompt Shelf
Claude Code Subagents: The Complete 2026 Reference (Frontmatter, Scopes, Built-Ins, and Production Patterns)
Every Claude Code subagent setting in one place — verified against Anthropic's May 2026 docs. Cover 17 frontmatter fields, 5 scope locations, 3 built-in subagents (Explore/Plan/general-purpose), permission modes, MCP scoping, and isolation:worktree.
AI Claude Code Subagents Multi-Agent AGENTS.md
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Inside Career-Ops: 14-Mode Skills Architecture Lessons for Claude Code Builders (2026)
Santiago's Career-Ops hit 44,554+ GitHub stars (44.5K within a week). Beyond the job-search use case, it's a reference implementation for building production Claude Code Skills. We dissect the 14-mode architecture, AGENTS.md setup, 10-dimensional scoring, and what you can steal for your own systems.
Claude Code Skills AGENTS.md Multi-Agent Career-Ops
· The Prompt Shelf
Career-Ops on Claude Code: The Complete 2026 Reference (14 Skill Modes, 10 Evaluation Dimensions, 3 Forks Compared)
Career-Ops by Santiago turned 740 listings into 1 Head of Applied AI offer. Full reference to 14 skill modes, the A–G evaluation rubric, multi-agent design, and how 3 community forks differ — all verified against the GitHub source.
AI Claude Code Skills career-ops AGENTS.md
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How to Install Claude Code in 2026: Complete Setup Guide for macOS, Windows, and Linux
Step-by-step Claude Code installation guide for 2026. Native installer, npm, Homebrew, WinGet — covering all platforms, common errors, AGENTS.md/CLAUDE.md setup, and first-run configuration.
Claude Code install setup macOS Windows
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GitHub Copilot CLI vs Claude Code CLI: 2026 Engineer Comparison (Models, Pricing, Workflows)
2026 Q2 updated comparison of GitHub Copilot CLI and Claude Code CLI. Model availability (Opus 4.7 / GPT-5 / Gemini 3 Pro), agent architecture, pricing tiers, SWE-bench scores, AGENTS.md compatibility, ideal use cases, and how senior engineers compose both. FAQ included for AGENTS.md and pricing questions.
GitHub Copilot CLI Claude Code CLI AI coding comparison
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Agentic AI Best Practices 2026: Architecture Patterns, AGENTS.md Integration, and Production Deployment Guide
Complete 2026 guide to building production-grade agentic AI systems. Coordinator-specialist patterns, AGENTS.md/CLAUDE.md integration, governance, observability, and human-in-the-loop design from Anthropic, Google, and Shopify.
agentic AI AGENTS.md production architecture best practices
· The Prompt Shelf
AGENTS.md in the Wild: Real Examples from 8 Top Repos Analyzed
Deep analysis of AGENTS.md files from n8n, awesome-go, LangFlow, Deno, Linear, Grafana, OpenAPI Generator, and Astro. What they have in common, what makes each unique, and what every developer can learn from them.
AGENTS.md Claude Code real-world examples analysis
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CLAUDE.md for Python Projects: Complete Template + Rules (2026)
Production-ready CLAUDE.md templates for Python projects. Covers modern Python toolchain (uv, ruff, pyproject.toml, pytest), with separate patterns for FastAPI, Django, and data science projects. Copy-paste ready.
CLAUDE.md Python Claude Code FastAPI Django
· The Prompt Shelf
10 CLAUDE.md Template Examples That Actually Work (2026)
10 copy-paste CLAUDE.md templates for real project types: frontend SPA, full-stack Next.js, REST API, monorepo, open source library, mobile app, browser extension, CLI tool, infrastructure/IaC, and documentation sites.
CLAUDE.md Claude Code templates examples AI coding
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AGENTS.md Best Practices 2026: What 60,000+ Repos Teach Us
Design principles and operational patterns for AGENTS.md drawn from 60,000+ real repositories. Beyond format basics — how top projects structure instructions, handle multi-tool environments, and keep AGENTS.md from going stale.
AGENTS.md Claude Code best practices multi-agent AI coding
· The Prompt Shelf
CLAUDE.md vs CONVENTIONS.md vs AGENTS.md: The Definitive 2026 Comparison
A technical deep-dive comparing CLAUDE.md, CONVENTIONS.md, and AGENTS.md — format, supported tools, strengths, weaknesses, migration paths, and real code examples. Decide which AI coding rules format belongs in your repo.
CLAUDE.md CONVENTIONS.md AGENTS.md Claude Code AI coding rules
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CLAUDE.md Best Practices 2026: 12 Patterns from 100+ Real Repos
Concrete CLAUDE.md best practices drawn from analyzing 100+ real-world repositories. 12 actionable patterns, common anti-patterns, and why most CLAUDE.md files underperform. For developers who want results, not theory.
CLAUDE.md Claude Code best practices AI coding developer tools
· The Prompt Shelf
AI Coding Tools Benchmark Report 2026: Cursor, Claude Code, Aider, and Codex CLI Tested on Real-World Tasks
A rigorous methodology-first benchmark of the four leading AI coding tools — Cursor, Claude Code, Aider, and OpenAI Codex CLI — tested across five real-world task categories. With cost-per-task tables, hidden overhead analysis, and a recommendation matrix by use case.
Claude Code Cursor Aider Codex CLI AI coding tools
· The Prompt Shelf
OrbStack vs Docker Desktop (2026): Benchmarks, Pricing, and Who Should Switch
A complete comparison of OrbStack and Docker Desktop for Mac developers in 2026. Real benchmarks on M2 MacBook Pro, pricing at team scale, Kubernetes support, Apple Containers context, and a clear decision guide for every use case.
orbstack docker docker-desktop mac-development kubernetes
· The Prompt Shelf
Multi-AI Agent Patterns: Sub-agents vs Agent Teams — Architecture Deep Dive (2026)
A decision-focused deep dive into when to use sub-agents versus Agent Teams, with a full pattern catalog, cost and token analysis, failure mode taxonomy, and the honest case for not going multi-agent at all.
Claude Code multi-agent sub-agents Agent Teams architecture
· The Prompt Shelf
AGENTS.md の効果測定：AIへの指示が本当に機能しているか確かめるベンチマーク手法
AGENTS.md を書いたら効いていると思い込んでいないか？指示の遵守率を測定し、欠如時との差分を計測し、サイレントに失敗しているルールを修正する系統的アプローチを解説する。
AGENTS.md CLAUDE.md ベンチマーク テスト Claude Code
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Testing AGENTS.md Effectiveness: A Benchmark Approach for Measuring Whether Your Instructions Actually Work
Most teams write AGENTS.md and assume it works. Here's a systematic approach to testing whether your instructions are followed, measuring the delta when they're absent, and fixing the rules that silently fail.
AGENTS.md CLAUDE.md benchmarking testing Claude Code
· The Prompt Shelf
Claude Code Monitoring & Observability: Token Tracking, Error Tracing, and Cost Alerts (2026)
Going beyond cost optimization — learn how to actually see what Claude Code is doing. Hooks-based telemetry, JSONL transcript parsing, LangSmith/Langfuse integration, Grafana dashboards, and production-grade error tracing for Claude Code in 2026.
Claude Code observability monitoring token tracking LangSmith
· The Prompt Shelf
Claude サブエージェントと専用AGENTS.md：役割ごとの指示設計で重複を排除する
Claude Code がサブエージェントを生成すると、全員が同じ AGENTS.md を読む。でも専門特化したエージェントには、その役割に必要なコンテキストだけを渡すべきだ。エージェントごとの AGENTS.md 設計パターンを解説する。
Claude Code サブエージェント AGENTS.md マルチエージェント ワークフロー
· The Prompt Shelf
Claude Sub-agents with Dedicated AGENTS.md: Per-Agent Instructions Without the Overlap
When Claude Code spawns sub-agents, they all read the same root AGENTS.md — but that's often the wrong instructions for a specialized agent. Here's how to design per-agent AGENTS.md files that give each sub-agent the context it actually needs.
Claude Code sub-agents AGENTS.md multi-agent workflow
· The Prompt Shelf
AGENTS.md のセキュリティ：書いてはいけないことと、あなたの指示ファイルで攻撃者ができること
AGENTS.md はバージョン管理に入り、チームで共有され、公開リポジトリに上がることもある。何を書くべきで何を書くべきでないか、プロンプトインジェクション攻撃の実態まで具体的に解説する。
AGENTS.md セキュリティ プロンプトインジェクション Claude Code AIセキュリティ
· The Prompt Shelf
AGENTS.md Security: What Not to Include (And What Attackers Can Do With Your Instruction Files)
AGENTS.md files end up in version control, shared across teams, and sometimes public repositories. Here's a concrete guide to what belongs in them, what doesn't, and how prompt injection via AGENTS.md actually works.
AGENTS.md security prompt injection Claude Code AI safety
· The Prompt Shelf
Gemini CLI でのAGENTS.md：Google製エージェントの読み方とClaude Codeとの違いを徹底比較
Gemini CLIがAGENTS.mdをサポートした。でも「互換性あり」は表面的な話。Claude Codeとどう解釈が違うのか、2ツール対応の書き方はどうすべきかを具体的に解説する。
AGENTS.md Gemini CLI Claude Code Google AI マルチエージェント
· The Prompt Shelf
AGENTS.md for Gemini CLI: How Google's Agent Reads Your Instructions (And Where It Diverges from Claude)
Gemini CLI landed with its own take on AGENTS.md support. Here's exactly what it reads, what it ignores, and how to write instructions that work across both Gemini CLI and Claude Code without maintaining two files.
AGENTS.md Gemini CLI Claude Code Google AI multi-agent
· The Prompt Shelf
AI Tools for Mobile Development: Flutter, React Native, and Native (2026)
A practical guide to using Claude Code, Cursor, Codex CLI, and Aider for mobile development across Flutter, React Native, Swift/SwiftUI, and Kotlin/Compose — with CLAUDE.md and AGENTS.md templates for each framework.
Claude Code Mobile Development Flutter React Native Swift
· The Prompt Shelf
AGENTS.mdバリデーターの自作：AIエージェントを壊す前に命令ファイルをリントする
AGENTS.mdにはスキーマも強制フォーマットもツールチェーンもない。ASTスタイルのパース・ルール定義・Pre-commitとCIに組み込めるCLIまで、軽量バリデーターをゼロから構築する。
AGENTS.md リント バリデーション 開発者ツール Claude Code
· The Prompt Shelf
Building an AGENTS.md Validator: Linting AI Instruction Files Before They Break Your Agents
AGENTS.md files have no schema, no enforced format, and no tooling. Here's how to build a lightweight validator from scratch — with AST-style parsing, rule definitions, and a CLI you can wire into pre-commit and CI.
AGENTS.md linting validation tooling Claude Code
· The Prompt Shelf
Claude Code Plan Modeを使ったCLAUDE.md設計：書く前に構造を固める実践ワークフロー
Plan modeはコードレビューだけのものではない。CLAUDE.mdを1行も書く前に設計するための最適なツールだ。矛盾・ギャップ・過剰仕様を問題になる前に洗い出す実践的なワークフロー。
Claude Code CLAUDE.md Planモード プロンプトエンジニアリング AIルール
· The Prompt Shelf
Using Claude Code Plan Mode to Design Better CLAUDE.md Files
Plan mode isn't just for code review — it's the right tool for designing CLAUDE.md before you write a single line. Here's a practical workflow for using Claude's planning pass to surface conflicts, gaps, and over-specification before they become problems.
Claude Code CLAUDE.md plan mode prompt engineering AI rules
· The Prompt Shelf
AGENTS.mdをCI/CDに組み込む：自動差分レビュー・検証・ドリフト検知の実践
AGENTS.mdは静かに陳腐化する。GitHub ActionsとPre-commitフックでドリフトを検知し、本番環境に影響が出る前にキャッチする実践的なワークフローYAMLとシェルスクリプト。
AGENTS.md CI/CD GitHub Actions DevOps 自動化
· The Prompt Shelf
AGENTS.md in CI/CD: Automated Diff Review, Validation, and Drift Detection
AGENTS.md is a living document that drifts silently. Here's how to wire GitHub Actions, pre-commit hooks, and automated review bots to catch staleness before it hits production — with real workflow YAML and shell scripts.
AGENTS.md CI/CD GitHub Actions DevOps automation
· The Prompt Shelf
AGENTS.md in Monorepos: Per-Package Instructions Without the Chaos
Monorepos break single-file AI instruction conventions. Here's how to use hierarchical AGENTS.md files across packages, workspaces, and CI contexts — with real Nx, Turborepo, and pnpm workspace patterns.
AGENTS.md monorepo Turborepo Nx pnpm workspaces
· The Prompt Shelf
モノレポでのAGENTS.md活用：パッケージごとのAI指示を管理する実践パターン
モノレポ環境では単一のAGENTS.mdでは対応しきれない。Nx・Turborepo・pnpmワークスペースを使った階層的AGENTS.md運用と、重複管理のコストを下げる実践パターンを解説。
AGENTS.md モノレポ Turborepo Nx pnpmワークスペース
· The Prompt Shelf
AGENTS.md vs Cursor Project Rules（.mdc）比較 — どちらを使い、どう共存させるか（2026年版）
CursorのProject Rules（.mdc形式）とAGENTS.mdは似た問題を異なるトレードオフで解決する。フォーマット、スコーピング、アクティベーション、デュアルスタック構成まで実例で比較。
AGENTS.md Cursor cursor rules MDC Project Rules
· The Prompt Shelf
AGENTS.md vs Cursor Project Rules (.mdc): Which to Use and How to Run Both (2026)
Cursor's .mdc Project Rules and AGENTS.md solve similar problems with different trade-offs. Here's a direct comparison of file formats, scoping behavior, activation logic, and the dual-stack setup that gets you the best of both.
AGENTS.md Cursor cursor rules MDC Project Rules
· The Prompt Shelf
CLAUDE.md トークン最適化 完全ガイド — @import、ファイル分割、プロンプトキャッシュ戦略（2026年版）
CLAUDE.mdのトークン消費を40%以上削減する実践テクニック。@import構文、ファイル分割パターン、プロンプトキャッシュとの相性、実測削減量の計測方法まで解説。
CLAUDE.md Claude Code トークン最適化 プロンプトキャッシュ @import
· The Prompt Shelf
CLAUDE.md Token Optimization: A Deep Dive into @import, Splitting, and Prompt Cache Strategies (2026)
Cut your CLAUDE.md token consumption by 40%+ without losing functionality. Covers @import syntax, file splitting patterns, lazy loading, prompt cache compatibility, and how to measure what you actually cut.
CLAUDE.md Claude Code token optimization prompt cache @import
· The Prompt Shelf
Cursor + Claude Code: Best of Both Worlds (2026)
Stop choosing between Cursor and Claude Code. The developers shipping the most in 2026 are running both — in a deliberate hybrid workflow that plays to each tool's strengths. Here's the complete playbook.
Cursor Claude Code AI coding tools developer workflow hybrid workflow
· The Prompt Shelf
OpenAI Codex CLI Workflow Patterns 2026: From Setup to Production-Grade Automation
You have Codex CLI installed and AGENTS.md configured. Now what? This guide catalogs 7 proven workflow patterns — inline review, spec-driven generation, test-first refactor, multi-step planning, and more — plus AGENTS.md tuning, a feature comparison against Claude Code and Cursor, cost optimization, and the pitfalls that catch most developers off guard.
OpenAI Codex Codex CLI workflow patterns AI coding AGENTS.md
· The Prompt Shelf
AGENTS.md × GitHub Copilot 完全ガイド — Copilotが何を読み、何を無視するかを理解する（2026年版）
GitHub CopilotはAGENTS.mdをどう読むのか（2026年Q2更新版）。Copilot Chat / Workspace / Coding Agent / CLI の挙動差、.github/copilot-instructions.md とAGENTS.md の使い分け、Claude Codeとの共存設定、トークン予算測定、FAQまで実例で解説。
AGENTS.md GitHub Copilot Copilot Workspace Copilot Coding Agent AIコーディング
· The Prompt Shelf
OpenAI Codex 向け AGENTS.md 完全ガイド — Claude との違いと実践パターン
OpenAI Codex エージェント向けの AGENTS.md 執筆技術ガイド。Codex が実際に読むもの・CLAUDE.md との動作の違い・CI パイプライン連携・一貫した結果を生むパターンを解説。
AGENTS.md OpenAI Codex AIコーディング 設定 Claude Code
· The Prompt Shelf
AGENTS.md and GitHub Copilot: How Copilot Reads It, What It Ignores, and How to Make It Work (2026)
Does GitHub Copilot actually read AGENTS.md? 2026 Q2 updated guide covering Copilot Chat / Workspace / Coding Agent / CLI behavior, .github/copilot-instructions.md vs AGENTS.md tradeoffs, and configuration patterns for mixed Copilot + Claude Code teams. FAQ + production token-budget measurements included.
AGENTS.md GitHub Copilot Copilot Workspace Copilot Coding Agent AI coding
· The Prompt Shelf
AGENTS.md for OpenAI Codex: What Works, What Doesn't, and How It Differs from Claude
A technical guide to writing AGENTS.md for OpenAI Codex agents. Covers what Codex actually reads, differences from CLAUDE.md behavior, CI pipeline integration, and patterns that produce consistent results.
AGENTS.md OpenAI Codex AI coding configuration Claude Code
· The Prompt Shelf
AGENTS.md vs CLAUDE.md: The Complete Decision Guide for 2026
A deep dive into when to use AGENTS.md vs CLAUDE.md — with a full decision matrix, real repo walkthroughs, migration patterns, coexistence strategies, and 7 pitfalls to avoid. For devs who have already read the basics and want the full picture.
AGENTS.md CLAUDE.md Claude Code AI coding rules multi-agent
· The Prompt Shelf
.cursorrules から AGENTS.md への移行ガイド — 段階的な移行手順と変換スクリプト（2026年版）
.cursorrulesはCursor ChatとComposerでは動くが、Agent modeでは無視される。AGENTS.mdへの移行手順、変換スクリプト、Cursor互換性の維持方法、よくあるハマりどころを解説。
.cursorrules AGENTS.md Cursor 移行 AIコーディングルール
· The Prompt Shelf
Migrating from .cursorrules to AGENTS.md: A Step-by-Step Guide for 2026
Your .cursorrules file works, but it's locked to Cursor and ignored in Agent mode. Here's the complete migration path to AGENTS.md — conversion script, gotchas, and how to keep both working during the transition.
.cursorrules AGENTS.md Cursor migration AI coding rules
· The Prompt Shelf
Dev Container + Claude Code: 再現性のある AI 開発環境の構築
一貫した AI 支援開発のための Dev Container と Claude Code の組み合わせ設定。devcontainer.json・コンテナ環境向け CLAUDE.md・コンテナ内 MCP サーバー・チームオンボーディングまで解説。
Claude Code Dev Container Docker devcontainer.json CLAUDE.md
· The Prompt Shelf
Dev Containers + Claude Code: Reproducible AI Development Environments
How to configure Dev Containers alongside Claude Code for consistent AI-assisted development. Covers devcontainer.json setup, CLAUDE.md for container environments, MCP servers in containers, and team onboarding.
Claude Code Dev Containers Docker devcontainer.json CLAUDE.md
· The Prompt Shelf
Monorepo × AI Tools: Patterns for 50+ Packages (2026)
When your monorepo grows past 50 packages, standard AI tool setups break down. This deep-dive covers 7 configuration patterns, per-tool walkthroughs for Nx, Turborepo, pnpm workspaces, and Bazel, plus token budget measurement, CI/CD integration, and the pitfalls that only appear at scale.
monorepo Claude Code CLAUDE.md AGENTS.md Nx
· The Prompt Shelf
Claude Code 向け MCP サーバーを自作する実践ガイド（2026年版）
Claude Code をプロジェクト固有のツールで拡張するカスタム MCP サーバーの構築方法。TypeScript SDK・ツールスキーマ設計・リソースエンドポイント・エラーハンドリング・settings.json による接続まで解説。
MCP Claude Code TypeScript 開発ツール 拡張
· The Prompt Shelf
Writing Your Own MCP Server for Claude Code: A Practical Guide
How to build a custom MCP server that extends Claude Code with project-specific tools. Covers the TypeScript SDK, tool schema design, resource endpoints, error handling, and connecting to Claude Code via settings.json.
MCP Claude Code TypeScript developer tools extensions
· The Prompt Shelf
Claude Code Cost Optimization: Practical Techniques to Cut Token Spend Without Losing Productivity
Anthropic bills by the token, and Claude Code can burn through them fast. This guide covers model selection, prompt caching, CLAUDE.md design, .claudeignore, worktrees, and sub-agent patterns that keep costs under control without slowing you down.
Claude Code cost optimization token usage prompt caching CLAUDE.md
· The Prompt Shelf
Claude Code をコードレビュアーとして使う実践ワークフロー（2026年版）
Claude Code で体系的なコードレビューを実施する方法。PR分析・セキュリティチェック・アーキテクチャフィードバック、そしてレビューモードと実装モードで動作を変えるCLAUDE.md設定まで解説。
Claude Code コードレビュー ワークフロー プルリクエスト セキュリティ
· The Prompt Shelf
Claude Code as Your Code Reviewer: A Practical Workflow for 2026
How to use Claude Code for systematic code review — PR analysis, security checks, architectural feedback, and how to configure CLAUDE.md so review mode behaves differently from implementation mode.
Claude Code code review workflow pull requests security
· The Prompt Shelf
TypeScript プロジェクト向け CLAUDE.md ルール完全テンプレート
TypeScript プロジェクト向けに最適化した CLAUDE.md テンプレート。型安全性・インポート規約・エラーハンドリング・テスト基準・禁止パターンを網羅したプロダクション対応版。
TypeScript CLAUDE.md Claude Code AIコーディングルール 型安全
· The Prompt Shelf
TypeScript CLAUDE.md Rules: A Production-Ready Template
A complete CLAUDE.md template tuned for TypeScript projects. Covers type safety rules, import conventions, error handling patterns, testing standards, and common anti-patterns to block.
TypeScript CLAUDE.md Claude Code AI coding rules type safety
· The Prompt Shelf
Claude Code のパーミッションシステム完全解説 — 信頼レベルと設定の仕組み
Claude Code のパーミッションシステムを徹底解説。信頼レベル・許可ツール・危険操作・settings.json によるプロジェクト別の許可/拒否リスト設定まで網羅。
Claude Code パーミッション セキュリティ 信頼 settings
· The Prompt Shelf
Claude Code Permissions and Trust Levels: A Complete Guide
Understand how Claude Code's permission system works: trust levels, allowed tools, dangerous operations, and how to configure project-specific allow/deny lists in settings.json.
Claude Code permissions security trust settings
· The Prompt Shelf
Cline vs Roo Code: ルールファイルシステムの徹底比較（2026年版）
.clinerules と Roo Code の .roo/rules/ を技術的に比較。ファイル構造・グロブマッチング・モード別設定・MCPパーミッションの違いから、プロジェクトに合った選択肢を解説します。
Cline Roo Code .clinerules AIコーディング 設定
· The Prompt Shelf
Cline vs Roo Code: Which AI Coding Agent Has Better Rules Support?
A deep comparison of .clinerules and Roo Code's .roo/rules/ system. Covers file format, glob matching, mode-specific config, context budget, and which tool fits your workflow in 2026.
Cline Roo Code .clinerules AI coding configuration
· The Prompt Shelf
Claude Code Flutter Guide: CLAUDE.md Template + Rules for Clean Architecture (2026)
Set up Claude Code for Flutter development with a complete CLAUDE.md template. Covers clean architecture, Riverpod state management, and platform-specific rules for iOS/Android.
Claude Code Flutter CLAUDE.md Mobile Development Clean Architecture
· The Prompt Shelf
Claude Code Security Rules: OWASP Top 10 Compliant AGENTS.md Template (2026)
Secure your AI coding workflow with OWASP-aligned CLAUDE.md rules. Copy-paste template covering injection prevention, auth validation, secrets management, and secure defaults.
Claude Code Security OWASP AGENTS.md
· The Prompt Shelf
Windsurf Rules vs Cursor Rules vs AGENTS.md: Which Config File Does What (2026)
Side-by-side comparison of Windsurf Rules (global_rules.md), Cursor Rules (.cursorrules/MDC), and AGENTS.md. Learn the scope, syntax, and migration path for each AI coding config format.
Windsurf Cursor AGENTS.md AI Coding Rules Comparison
· The Prompt Shelf
AI Coding Rules for Python Projects 2026: CLAUDE.md and .cursorrules Templates
Complete guide to writing AI coding rules for Python projects — CLAUDE.md templates, .cursorrules examples, type hints, testing conventions, packaging, and environment management for Claude Code and Cursor.
Python CLAUDE.md cursor rules AI coding rules best practices
· The Prompt Shelf
React・Next.js プロジェクトのAIコーディングルール 2026：CLAUDE.md・cursorrules テンプレート
React・Next.jsプロジェクト向けの実用的なAIコーディングルール。サーバー/クライアントコンポーネントの判断基準、App Router規約、TypeScriptパターン、テスト設定のテンプレートを提供。
React Next.js CLAUDE.md cursor rules AIコーディングルール
· The Prompt Shelf
Python プロジェクトのAIコーディングルール 2026：CLAUDE.md・cursorrules テンプレート集
PythonプロジェクトのCLAUDE.md・.cursorrulesテンプレートを徹底解説。型ヒント、テスト規約、パッケージ管理、非同期パターンのルール設定でAIアシスタントの出力品質を向上。
Python CLAUDE.md cursor rules AIコーディングルール ベストプラクティス
· The Prompt Shelf
AI Coding Rules for React and Next.js Projects 2026: CLAUDE.md and .cursorrules Templates
Complete AI coding rules for React and Next.js projects — server vs client component rules, App Router conventions, TypeScript patterns, testing with Vitest, and production-ready CLAUDE.md templates.
React Next.js CLAUDE.md cursor rules AI coding rules
· The Prompt Shelf
Claude Code メモリ・永続化 実装ガイド 2026：機能するシステムの作り方
Claude Codeの記憶システムを実際に機能させる設計と運用方法。MEMORY.mdアーキテクチャ、セッション引き継ぎワークフロー、Auto Memoryの管理、チーム・個人開発者向けパターンを解説。
Claude Code メモリ CLAUDE.md 永続化 ワークフロー
· The Prompt Shelf
Claude Code Memory Persistence Guide 2026: Build a System That Actually Sticks
How to design and maintain a working Claude Code memory system — MEMORY.md architecture, session handoff workflows, Auto Memory curation, and patterns for teams vs. solo developers.
Claude Code memory CLAUDE.md persistence workflow
· The Prompt Shelf
Claude Code サブエージェント ベストプラクティス 2026 — 実際のAGENTS.mdから抽出した12パターン
Claude Code サブエージェントのベストプラクティスを2026年版で網羅。実本番のAGENTS.md 12パターンを分析。タスク分解、コンテキスト受け渡し、並列実行、エラー復旧、見た目は正しいが大規模化で崩れる失敗モードまで。
Claude Code サブエージェント マルチエージェント ベストプラクティス AGENTS.md
· The Prompt Shelf
Claude Code Subagents Best Practices 2026: 12 Patterns From Real AGENTS.md Files
Claude Code subagents best practices in 2026 — 12 production-tested patterns from real AGENTS.md files. Task decomposition, context passing, parallel execution, error recovery, and the failure modes that look fine until they don't.
Claude Code subagents multi-agent best practices AGENTS.md
· The Prompt Shelf
CLAUDE.md トークン最適化 上級ガイド 2026：コンテキストを最大限に活かす
基本的な削減を超えたCLAUDE.mdの高度なトークン最適化技術。レイジーロード、条件付きセクション、メモリオフロード、実測方法を解説します。
CLAUDE.md Claude Code トークン最適化 コンテキストウィンドウ パフォーマンス
· The Prompt Shelf
CLAUDE.md Token Budget Optimization Guide 2026: Advanced Techniques
Advanced token optimization strategies for CLAUDE.md beyond basic pruning — lazy loading, conditional sections, memory offloading, and real measurement techniques to reclaim your Claude Code context window.
CLAUDE.md Claude Code token optimization context window performance
· The Prompt Shelf
効果的なCLAUDE.mdの書き方 2026：白紙から本番品質まで
CLAUDE.mdを効果的に書くためのステップバイステップガイド。何を書くべきかの特定方法、Claudeが実際に従う命令の書き方、CLAUDE.mdを悪化させる典型的なミスとその修正方法を解説。
CLAUDE.md Claude Code ベストプラクティス 書き方 AIコーディングルール
· The Prompt Shelf
Writing Effective CLAUDE.md Files: From Blank Page to Production-Ready 2026
A step-by-step process for writing effective CLAUDE.md files — how to identify what to include, how to phrase instructions Claude actually follows, and common mistakes that make CLAUDE.md files worse instead of better.
CLAUDE.md Claude Code best practices how to write developer tools
· The Prompt Shelf
AGENTS.md for OpenAI Codex 完全ガイド — セットアップから実践例まで【2026年版】
OpenAI Codex CLIでAGENTS.mdを活用する方法を解説（2026年Q2更新版）。ファイル配置、構文、32KiB制限、override機構、モノレポパターン、実プロジェクトの設定例、ベストプラクティスまで網羅。Codex CLI最新挙動・spec安定化対応。
AGENTS.md OpenAI Codex AI活用 設定ガイド Codex CLI
· The Prompt Shelf
AGENTS.md for OpenAI Codex: Complete Setup and Configuration Guide (2026)
Complete 2026 Q2 guide to writing and configuring AGENTS.md for OpenAI Codex CLI. Covers file discovery, the 32 KiB limit, override mechanism, monorepo patterns, real production examples, and best practices for agentic coding. Updated for spec stabilization and new Codex CLI behavior.
AGENTS.md OpenAI Codex AI coding configuration setup guide
· The Prompt Shelf
.cursorrules vs .cursor/rules（MDC形式）完全比較ガイド【2026年版】
.cursorrulesと.cursor/rules（MDC形式）の違いを徹底比較。構文の違い、スコープ管理、移行手順、プロジェクト規模別の選び方まで解説。
Cursor .cursorrules MDC AI活用 設定ガイド
· The Prompt Shelf
.cursorrules vs .cursor/rules (MDC): Which Format to Use in 2026
Compare .cursorrules and .cursor/rules MDC format side by side. Covers syntax differences, scoping, migration steps, and when to use each format in your Cursor AI workflow.
Cursor .cursorrules MDC cursor rules AI coding
· The Prompt Shelf
.windsurfrules: The Complete Guide to Windsurf AI Rules (2026)
Everything you need to know about .windsurfrules — how they work, how they differ from .cursorrules and CLAUDE.md, and 12 practical examples you can use today.
.windsurfrules Windsurf AI coding rules Cascade developer tools
· The Prompt Shelf
Writing Effective AGENTS.md: The Definitive Guide for Multi-Agent Workflows
AGENTS.md is becoming the standard for multi-agent AI instruction files. Learn exactly how to write one that actually works — with real examples, anti-patterns to avoid, and tested patterns for orchestrators, subagents, and hybrid setups.
AGENTS.md Claude Code multi-agent AI rules CLAUDE.md
· The Prompt Shelf
Claude Code + Pre-Commit Hooks: Stop Shipping Broken Code
How to wire Claude Code's hook system into pre-commit so linting, tests, and secret scanning run automatically before every commit. Includes copy-paste configs for Python, TypeScript, and polyglot repos.
Claude Code pre-commit hooks git automation
· The Prompt Shelf
Claude Code Debugging: A Step-by-Step Workflow for Finding and Fixing Bugs
A practical debugging workflow for Claude Code. Covers error reproduction, Plan Mode for complex bugs, test-driven debugging, hooks for auto-linting, and the /rewind escape hatch.
Claude Code debugging workflow testing developer tools
· The Prompt Shelf
Claude Code MCP Servers: The Complete Setup Guide for 2026
Learn how to connect Claude Code to external tools via MCP servers. Covers configuration, scoping, security, the top servers worth installing, and how Tool Search keeps context usage manageable.
Claude Code MCP Model Context Protocol developer tools setup guide
· The Prompt Shelf
Claude Code vs Cursor in 2026: An Honest Comparison for Working Developers
A practical comparison of Claude Code and Cursor based on real benchmark data and workflow differences. Covers architecture, speed, accuracy, cost, and when to use each tool — including the hybrid setup most experienced developers have landed on.
Claude Code Cursor AI coding tools comparison developer tools
· The Prompt Shelf
Cline Rules: The Complete .clinerules Guide for 2026
Learn how to configure Cline with .clinerules files. Covers single-file and directory formats, YAML frontmatter, glob-based conditional rules, and 5 copy-pasteable templates.
Cline .clinerules VS Code AI coding configuration
· The Prompt Shelf
Claude Code Agent Teams: The Practical Guide to Multi-Agent Parallel Development
Set up Claude Code Agent Teams for real parallel development. Covers the experimental feature, team configs, git coordination, CLAUDE.md optimization, and when to use it.
Claude Code agent teams multi-agent orchestration parallel development
· The Prompt Shelf
Cursor Rules Examples and Templates: A Practical Guide for 2026
Copy-pasteable Cursor rules templates for React/Next.js, Python, Go, TypeScript, and more. Covers .cursorrules and the new .cursor/rules/*.mdc format.
Cursor cursor rules .cursorrules AI coding templates
· The Prompt Shelf
Claude Code Memory Persistence: What Actually Works Across Sessions
A practical breakdown of Claude Code's four-layer memory system — CLAUDE.md, auto memory, MEMORY.md, and Auto-Dream — with honest coverage of what persists, what doesn't, and the patterns that actually survive session restarts.
Claude Code memory CLAUDE.md auto memory persistence
· The Prompt Shelf
Enforcing TDD with Claude Code: Hooks, Rules, and the Red-Green Loop
Claude Code defaults to writing implementation first. Here is how to flip that with PreToolUse hooks, CLAUDE.md constraints, and a skill-based red-green-refactor loop that actually holds up across a full session.
Claude Code TDD test-driven development hooks CLAUDE.md
· The Prompt Shelf
CLAUDE.md Token Budget Optimization: Keep It Lean Without Losing Power
How to measure, cut, and restructure your CLAUDE.md for maximum context efficiency. Covers token counting, what to prune, lazy-loading patterns, and how to reclaim 30–50% of your context window without sacrificing behavior.
CLAUDE.md Claude Code token optimization context window performance
· The Prompt Shelf
Switching from Cursor to Claude Code: A Practical Workflow Migration Guide
Not just a .cursorrules conversion — a full workflow migration guide covering IDE habits, MCP setup, git integration, keybindings, and the mental model shift that actually makes Claude Code click.
Claude Code Cursor migration workflow MCP
· The Prompt Shelf
Claude Code Git Worktree Guide: Run Parallel AI Sessions Without Conflicts
Learn how to use git worktrees with Claude Code to run multiple AI sessions in parallel on separate branches. Covers the --worktree flag, subagent isolation, cleanup behavior, and real-world parallel task patterns.
Claude Code git worktree parallel development workflow
· The Prompt Shelf
How to Migrate Your .cursorrules to CLAUDE.md (and AGENTS.md)
A practical step-by-step guide to converting your existing Cursor rules to CLAUDE.md for Claude Code. Covers rule translation, what carries over, what needs rewriting, and how to support both tools from a single AGENTS.md.
CLAUDE.md cursorrules Cursor Claude Code migration
· The Prompt Shelf
AGENTS.md Best Practices: Structure, Scope, and Real Examples
A practical guide to writing effective AGENTS.md files for Claude Code and multi-agent systems. Covers format, scope hierarchy, entry design, tool permissions, and the patterns that make subagents actually useful.
Claude Code AGENTS.md multi-agent subagents workflow
· The Prompt Shelf
Claude Code Context Window: Why It Burns Tokens Fast & How to Fix It (2026)
Why Claude Code drains your context window faster than the 1M token limit suggests — and 7 fixes that actually work in 2026. Covers .claudeignore patterns, lean CLAUDE.md design, compaction, subagents, and session resume.
Claude Code context window token limits performance workflow
· The Prompt Shelf
Claude Code Custom Slash Commands: Build Reusable Workflows with Skills
Learn how to build custom slash commands in Claude Code using the Skills system. Covers SKILL.md structure, command vs skill patterns, scope, progressive disclosure, and practical examples you can copy today.
Claude Code slash commands skills workflow automation
· The Prompt Shelf
Claude Code Subagents: A Practical Guide to Delegation Patterns
Learn how to use Claude Code subagents effectively — when to delegate, how to write AGENTS.md entries, parallel vs sequential patterns, and the key mistake that wastes your context window.
Claude Code subagents AGENTS.md multi-agent workflow
· The Prompt Shelf
Claude Code Hooks: A Practical Guide with 10 Real-World Examples
Learn how to use Claude Code hooks to automate formatting, block dangerous commands, inject context, and enforce team rules. Includes 10 copy-paste-ready examples covering all major hook events.
Claude Code hooks automation developer tools workflow
· The Prompt Shelf
Claude Code in a Monorepo: The Complete Setup Guide
Learn how to configure Claude Code for monorepos using nested CLAUDE.md files, package-specific subagents, token budget strategies, and team-friendly patterns. Includes a real-world example with a full-stack TypeScript monorepo.
Claude Code monorepo CLAUDE.md subagents team setup
· The Prompt Shelf
15 Best Claude Code Skills You Should Install in 2026
Curated list of the best Claude Code Skills (custom slash commands) on GitHub, updated for 2026 Q2. From design audits to security research, session management, and subagent integration — these skills turn Claude Code into a specialized expert. Includes installation guide, FAQ, and ecosystem updates.
AI Claude Code skills custom commands developer tools
· The Prompt Shelf
Claude Code Best Practices: The Official and Community-Tested Guide for 2026
A complete guide to Claude Code best practices, combining Anthropic's official documentation with battle-tested patterns from the developer community. Covers CLAUDE.md, hooks, skills, memory, and workflow optimization.
AI Claude Code best practices CLAUDE.md developer tools
· The Prompt Shelf
AGENTS.md vs CLAUDE.md: 5 Key Differences You Need to Know (2026)
AGENTS.md is the multi-tool standard (60K+ repos). CLAUDE.md is Claude Code's native config. Learn when to use each, how to combine them with @import, and avoid the 7 most common setup mistakes.
AI AGENTS.md CLAUDE.md agent.md agents md
· The Prompt Shelf
コピペで使える CLAUDE.md テンプレート10選 — 用途別にそのまま使えるClaude Code設定
Next.js、Python ML、API、モバイル、DevOps、OSSなど用途別のCLAUDE.mdテンプレートを10個紹介。コピペしてすぐにClaude Codeを最適化できる実践的な設定集。
CLAUDE.md Claude Code テンプレート AI coding rules
· The Prompt Shelf
10 CLAUDE.md Templates You Can Copy-Paste Right Now
Ready-to-use CLAUDE.md templates for Next.js, Python ML, REST APIs, React Native, DevOps, open source libraries, monorepos, documentation sites, Chrome extensions, and CLI tools. Copy, paste, customize, ship.
CLAUDE.md Claude Code templates AI coding developer tools
· The Prompt Shelf
20 Best AI Coding Rules and Configurations in 2026
A curated list of the 20 best AI coding rules from real open-source projects. Featuring CLAUDE.md, .cursorrules, and AGENTS.md files from Vercel, LangChain, Deno, Grafana, and more — with analysis of what makes each one effective.
AI coding rules best of CLAUDE.md cursorrules
· The Prompt Shelf
How to Write a CLAUDE.md File: The Complete 2026 Guide (Q2 Updated with Official Best Practices)
Learn how to write an effective CLAUDE.md file for Claude Code. This 2026 Q2 update covers token-cost economics, the Anthropic Official Include/Exclude table, the @import pattern, CLAUDE.md vs Skills decision rules, real-world anti-patterns, and how to treat CLAUDE.md as code. Includes FAQ + FAQPage schema for AI referral.
AI Claude Code CLAUDE.md coding rules developer tools
· The Prompt Shelf
Cursor Rules vs CLAUDE.md vs AGENTS.md: Which to Pick (2026 Guide)
Cursor Rules vs CLAUDE.md vs AGENTS.md — a complete 2026 comparison with real-world data. Which format works with which tool, how to migrate between them, and the hybrid setup most teams actually ship today.
AI cursorrules CLAUDE.md AGENTS.md comparison
Explore AI Coding Rules
Browse our curated collection of CLAUDE.md, .cursorrules, AGENTS.md, and image prompts.