produced by Classmethod

# Claude articles

Claude Code v2.1.209 to v2.1.210 Major Updates

2026.07.15

Claude Code v2.1.208 Major Updates - Access to Claude Fable 5 Re-extended Until July 19

2026.07.14

[Non-Engineer's Claude/ClaudeCode Series] I Stopped Defaulting to Opus — A Story of Testing Claude Model Selection by Sales Task Type

2026.07.14

Claude Coworkのコードは隔離されたVMの中で動くから、ホスト環境を汚さない

2026.07.14

# A Thorough Comparison of Structured Output in OpenAI, Gemini, and Claude — How to Reliably Get JSON Schema Compliance

2026.07.13

OpenAI, Claude, Gemini Reasoning Control Parameters Compared — Design Philosophy of reasoning_effort / budget_tokens / thinkingLevel

2026.07.13

Have you noticed different behavior between LLM chat UIs and APIs? Here's a cross-provider breakdown of causes and solutions

2026.07.13

Structuring LLM Output with Tool Use in Bedrock Claude — The Story of How We No Longer Need JSON.parse() or Regular Expressions

2026.07.13

Chunk Anchoring — A Simple Technique to Prevent Ticket ID Hallucination in RAG

2026.07.12

# Understanding Prompt Caching's "Prefix Principle" — cache_control Breakpoint Placement Strategies and Practical Benefits of Tool Definition Caching

2026.07.12

Normalizing MCP tool output before passing it to the model — the PostToolUse hook pattern

2026.07.12

Main Updates in Claude Code v2.1.207

2026.07.11

Do AI Coding CLI Tools Destroy SSDs? Investigating Disk Write Issues with Codex, Claude Code, and Claude Desktop

2026.07.11

[Update] I tried out the AWS MCP Server's new support for industry-standard OAuth 2.1 (via AWS Sign-In) for connections from AI agents

2026.07.11

Understanding the True Nature of MCP: From the Tool Use Agent Loop to JSON-RPC 2.0 Two-Layer Error Handling

2026.07.10

Loop Engineering — Building Autonomous Loops with Claude Code

2026.07.10

Claude Code v2.1.206 Major Updates

2026.07.10

Claude Code v2.1.204 to v2.1.205 Major Updates

2026.07.09

Claude Code v2.1.203 Major Updates - Access to Claude Fable 5 extended until July 12 for all paid plans

2026.07.08

I investigated an error that occurred in the Bedrock Converse API after migrating from Claude Sonnet 4.6 to Sonnet 5

2026.07.07

The story of how I, with no IT experience, found myself able to create meeting materials with Claude before I knew it

2026.07.07

Claude Code v2.1.202 Major Updates

2026.07.07

I was able to call Claude Fable 5 on Bedrock Mantle, so I tried it out

2026.07.05

I investigated the automatic continuation setting (askUserQuestionTimeout) for waiting for responses in Claude Code

2026.07.05

Claude Code v2.1.200 to v2.1.201 Major Updates

2026.07.04

I investigated the storage location and retention period (cleanupPeriodDays) of Claude Code conversation history

2026.07.04

I summarized recent developments in design systems advancing AI agent support - Meta Astryx, v0, Serendie, SmartHR

2026.07.04

Claude Code v2.1.199 Major Updates

2026.07.03

I tried semi-automating double-check work in a Claude project

2026.07.02

Claude Code v2.1.197 to v2.1.198 Major Updates - The Arrival of Claude Sonnet 5 and the Resumption of Claude Fable 5!

2026.07.02

ちょっと話題の記事

I tested the re-released "Claude Fable 5" on Amazon Bedrock

2026.07.01

Major Updates in Claude Code v2.1.194–v2.1.196

2026.06.30

I tried out the Agent Toolkit for AWS integration feature of the AWS CLI

2026.06.26

Claude Code v2.1.192 to v2.1.193 Major Updates

2026.06.26

[Non-Engineer's Claude/Claude Code Series] Claude isn't just for improving work efficiency. A first-year salesperson tried using it as a role-play practice partner.

kkawasaki-ayumi

2026.06.26

AI Co-Authored 40% of the Codebase: A Retrospective on 155 Commits Over 4 Months

2026.06.25