Claude Code autoモードが既定に、無効化は管理設定で行う

"Auto mode lets Claude execute without routine permission prompts. A separate classifier model reviews actions before they run, blocking anything that escalates beyond your request, targets unrecognized infrastructure, or appears driven by hostile content Claude read."（Eliminate permission prompts with auto mode の節）／"Read-only actions and file edits in your working directory are auto-approved, except writes to protected paths"（How the classifier evaluates actions の節）— Claude Code 公式ドキュメントより

"Explicit ask rules still force a prompt."（Eliminate permission prompts with auto mode の節）／"To require a human checkpoint before these commands while staying in auto mode, add permissions.ask rules"（What the classifier blocks by default の節）— Claude Code 公式ドキュメントより

"On Pro, Max, and Team plans, the built-in starting permission mode is auto mode."（ページ冒頭の説明）／"claude -p or the Agent SDK"（Which mode a session starts in の表）／"if your ~/.claude/settings.json sets a defaultMode other than auto and no other settings file sets one, your sessions keep starting in that mode."（同節）— Claude Code 公式ドキュメントより

"Starting on August 14, new sessions on Pro, Max, and Team plans will run in auto mode."— Anthropic 公式ブログより

"The built-in auto default requires Claude Code v2.1.228 or later on macOS, Linux, and WSL, and v2.1.233 or later on native Windows. On earlier versions, the built-in default is Manual."（Which mode a session starts in の節）— Claude Code 公式ドキュメントより

"The classifier trusts your working directory and the remotes that were configured for it when the session started."（What the classifier blocks by default の節）／"Downloading and executing code, like curl | bash"／"Sending sensitive data to external endpoints"／"Production deploys and migrations"／"Mass deletion on cloud storage"／"Granting IAM or repo permissions"／"Modifying shared infrastructure"／"Irreversibly destroying files that existed before the session"／"Force push"／"git reset --hard"／"which the classifier presumes would discard uncommitted changes"／"terraform destroy"／"and applying a plan that destroys resources"（いずれも同節の Blocked by default 一覧）／"If the classifier blocks, Claude receives the reason and tries an alternative."（How the classifier evaluates actions の節）／"Claude Code shows a notification and lists the action in /permissions under the Recently denied tab, where you can press r to retry it with a manual approval."（When auto mode falls back の節）／"The classifier treats boundaries you state in the conversation as a block signal."／"Boundaries are not stored as rules."／"For a hard guarantee, add a deny rule instead."（Boundaries you state in conversation の節）— Claude Code 公式ドキュメントより

"Auto mode reduces permission prompts but does not guarantee safety. Use it for tasks where you trust the general direction, not as a replacement for review on sensitive operations."（Eliminate permission prompts with auto mode の節の警告ボックス）— Claude Code 公式ドキュメントより

"it relies on classification systems and therefore does not eliminate risk."／"For high-stakes changes to production infrastructure, we still recommend reviewing"（Getting started の節）— Anthropic 公式ブログより

"Switch permission modes with Shift+Tab in the CLI, the mode indicator in VS Code, or the mode selector in Desktop."（ページ冒頭の説明）／"press Shift+Tab to cycle permission modes."（Switch permission modes の節 CLI タブ）／"This example makes every terminal session on your machine start in Manual mode"（Start in a different permission mode の節）／"auto doesn’t take effect from those files."（Eliminate permission prompts with auto mode の節）／"The extension never reads a project’s .claude/settings.json or .claude/settings.local.json for the starting permission mode"（Switch permission modes の節 VS Code タブ）— Claude Code 公式ドキュメントより

"on Team and Enterprise, auto mode is available by default. Administrators can turn it off for the organization by setting permissions.disableAutoMode to"（Eliminate permission prompts with auto mode の節 Requirements ブロック）／"This removes auto from the Shift+Tab cycle, and a session started with --permission-mode auto starts in Manual instead."／"A session already running in auto mode leaves it when the setting reaches that session from an admin-deployed source"（いずれも Auto mode on Bedrock, Agent Platform, or Foundry の節）— Claude Code 公式ドキュメントより