話題 / Topic
Claude Code has started refusing to enter credentials even when the user grants permission. The safety rule baked into its system prompt can't be disabled in settings, and it's colliding with legitimate testing and SSH automation. We lay out the defensive rationale and the escape hatches that remain
Claude Code が、利用者が許可しても認証情報の入力を拒むようになりました。システムプロンプトに焼き付けられた安全規則は設定で外せず、正規のテストやSSH自動化とぶつかっています。守りの理屈と、残された逃げ道を整理します。
Claude Code v2.1.309 closes sandbox and permission-check bypasses in a single batch. Two days earlier, v2.1.307 added an audit event that records the moves a guardrail blocked. Here's a rundown of the defensive measures that pay off in unattended operation, and what to do now.
Claude Code v2.1.309 は、サンドボックスと権限チェックのすり抜けを一塊で修正。前々日の v2.1.307 はガードレールが止めた一手を記録する監査イベントを追加。無人運用で効く守りの手当てと、今すべき対応を整理します。
Anthropic adds “2026-10-21,” its first new API version since 2023. It removes temperature/top_p/top_k and ships major updates to eight SDKs at once. The old version remains, but some warn the change hurts workloads that depend on reproducibility.
Anthropicが2023年以来はじめての新APIバージョン「2026-10-21」を追加。temperature/top_p/top_kを廃止し、8つのSDKを一斉にメジャー更新。旧版は残るが、再現性重視の運用には痛手との指摘も。
Renowned developer Simon Willison has released "Battle Drones," a browser-based RTS, without writing almost any of the code himself. He handed roughly 321 commits to Claude Code—and when he asked it to "make it more fun," the agent answered with 1,200 self-play matches. A look at the development met
著名開発者 Simon Willison が、ブラウザRTS「Battle Drones」を自分ではほぼコードを書かずに公開。約321コミットをClaude Codeに任せ、「もっと面白く」の一言に1,200回の自己対戦で応えた開発手法を追う。
Anthropic released Claude Opus 5.5 on October 20, 2026. Per-token prices dropped about 20%, yet at max effort the cost per task was reported to rise by roughly 20% instead. Here's what's behind the price-cut headline, and how to tame it with reasoning-effort settings in your operations.
Anthropicが2026年10月20日に公開したClaude Opus 5.5。トークン単価は2割安くなったのに、最大努力度では1タスクあたり費用がむしろ2割増える逆転が報告された。値下げの見出しの裏側と、努力度で御す運用設計を整理します。
Claude Code auto-manages git worktrees as disposable workrooms — but a pitfall let it delete branches and commits without asking. v2.1.304 restores the pre-deletion confirmation and adds a review-depth choice. Here are the self-defense measures and the rescue procedure.
git worktree を使い捨ての作業部屋として自動管理するClaude Codeに、確認なしで枝とコミットを消す落とし穴があった。v2.1.304は削除前の確認を正し、レビューの深さ選択も追加。自衛策と救出手順もまとめる。
