日本語サマリー

Claude Code 2.1.268 リリースノート要約

⚠️ 重要な修正・破壊的変更

• セキュリティ修正： deny / ask 権限ルールがシンボリックリンクされたディレクトリ（macOSの /etc, /tmp, /var、Linuxの /bin）で、実パス指定時に適用されない問題を修正。また env -C や eval など解析不能なコマンドと同一行にある Read/Edit の deny ルールが無視される問題も修正
• セキュリティ修正： git ソースURLのトークン・パスワード、MCP設定の ${VAR} プレースホルダで解決されたシークレットがエラー表示に露出する問題を修正
• 重大な不具合修正： 2.1.265 以降、ANTHROPIC_BASE_URL のサードパーティ互換エンドポイントで毎ターン HTTP 400 エラーになる問題（Artifact tool の入力スキーマの regex が原因）を修正
• 動作変更： WebFetch の deny/ask ルールが Artifact tool の読み書きに適用されなくなった。ブロックするには Artifact ルール（または WebFetch(domain:claude.ai)）を使用
• 動作変更： タスク管理ツール（TaskCreate/Get/Update/List, TodoWrite）は Claude 3.x、Opus 4.0–4.7、Sonnet 4.0–4.6、Haiku 4.5 のみに提供。それ以外は CLAUDE_CODE_ENABLE_TODO_TOOLS=1 を設定

主な新機能

• Gateway: gateway.yaml の pricing: 設定に対応し、/cost とテレメトリーが使用量メーターと一致。gatewayInternalNetworks 管理設定を追加
• self-hosted-runner: --remove-session-state オプションでセッション終了時に <base-dir>/_sessions/ を削除
• CLI: claude plugin install/uninstall/update/enable/disable に --json を追加、claude auth status --json に configDirectory を追加
• WebFetch: 無応答サーバーで無限ハングする問題を修正。300秒でタイムアウト（CLAUDE_CODE_WEBFETCH_DEADLINE_MS で変更可能）

主な修正・改善

• CPU: アイドルセッションのビジーループによるCPUコア占有、session recap中の高CPU使用を修正
• --continue / --resume: SessionStart hooks を待たず会話を即時表示し、初回メッセージがトランスクリプト全体を再読込しないよう改善
• SDK: excludeDynamicSections 使用時に prompt caching と extended thinking がセッション途中で壊れる問題を修正
• MCP: OAuthサインインの「No available ports for OAuth redirect」エラーを修正
• フルスクリーンモード: Shift+Enter によるプロンプト行の追加・削除が高速に再描画されるよう改善
• /plugin: プラグインのインストール・有効化・無効化がメニューを閉じるだけで反映（/reload-plugins 不要に）
• VSCode: CLAUDE_CONFIG_DIR 設定時の各種不具合、Windows/WSL 関連の問題を修正。アクセシビリティ向けに矢印キー操作や「Focus last message」コマンドを追加

原文（Release Notes）

What's changed

• Added to the Claude apps gateway: with pricing: set in gateway.yaml, signed-in Claude Code clients receive the same rates through managed settings, so /cost and telemetry match the spend meter
• Added a startup warning for gateways when access_control.allow_cidrs is empty, and a one-time warning the first time a request arrives from a public address
• Added the gatewayInternalNetworks managed setting, letting administrators allow /login to a Claude apps gateway on their organization's own public IPv4 block
• Added claude self-hosted-runner --remove-session-state (default off): delete each session's per-session directories under <base-dir>/_sessions/ when the session ends
• Added configDirectory to the output of claude auth status --json
• Added --json to claude plugin install, uninstall, update, enable and disable, and errorDetails/noteDetails to each row of claude plugin list --json
• Added browser-tab icons for published artifacts, chosen by Claude to match each page
• Fixed every turn failing with HTTP 400 on third-party Anthropic-compatible endpoints (ANTHROPIC_BASE_URL) since 2.1.265: a regex in the Artifact tool's input schema that those endpoints reject
• Fixed WebFetch hanging indefinitely on a server that keeps the response open without finishing; a fetch now fails after 300 seconds. Set CLAUDE_CODE_WEBFETCH_DEADLINE_MS to override the deadline (0 turns it off)
• Fixed a respawned in-process teammate picking up tools or a system prompt from a same-named agent file in a folder you have not trusted
• Fixed sustained high CPU usage: a busy loop in long-running idle sessions no longer pins a CPU core, and rapid terminal focus reports during a session recap no longer keep the CPU high
• Fixed Claude sometimes replying "your message came through empty" after an MCP tool call
• Fixed deny and ask permission rules on symlinked directories (/etc, /tmp, /var on macOS; /bin on Linux) not applying when a path was given by its real location, and Bash commands ignoring deny rules written on a symlinked path spelling
• Fixed a case where a Read or Edit deny rule did not apply when an env -C, eval or similar command the permission checker cannot analyze was on the same line
• Fixed plugin and marketplace errors showing a token or password from a git source URL
• Fixed /mcp and /plugin server details, claude mcp list/get, and MCP login errors showing secrets resolved from ${VAR} placeholders in MCP configs
• Fixed prompt caching and extended thinking breaking mid-session for SDK sessions using excludeDynamicSections: the first message is no longer re-rendered each request
• Fixed entitled users being told a model is restricted after restart or in the Desktop Code tab when a cached model-access denial was stale
• Fixed a running session silently switching to the organization's default model when another Claude Code process refreshed a stale model-access entry
• Fixed long-context 429s on Fable models showing the usage-credits consent prompt instead of the 1M-context message on Pro and Team plans
• Fixed workload identity federation via a profile (as claude-code-action configures it): processes sharing the profile could fail mid-run with 401 … jti reused
• Fixed MCP server OAuth sign-in failing with "No available ports for OAuth redirect" when the local callback port range can't be bound
• Fixed the conversation summary produced by /compact and auto-compact mangling text that contained $ sequences
• Fixed resuming a conversation that ended with /compact: its restored-file notes now load in the same order on every resume
• Fixed SDK prompt suggestions, side questions and /rename sending the conversation from before a compaction
• Fixed @ file and / command suggestions not appearing after recalling a previous prompt with the up arrow and editing it
• Fixed claude agents: pressing ← again at a natural pace to go back to the agent list no longer gets ignored until you pause for over a second
• Fixed claude agents session delete getting stuck when a worktree can't be removed: the message names the cause and next step, and for a git worktree ctrl+x again deletes the directory anyway
• Fixed background agent and workflow rows in the agents panel expanding to many lines when their text contained line breaks
• Fixed Claude in Slack sessions losing their Slack tools when org managed settings set an MCP allowlist
• Fixed Claude in Chrome asking to allow the host "https" when a navigation URL had a scheme but a host that could not be parsed
• Fixed the spinner wrapping onto several lines when the current task's label is long; the label and the "Next:" task line now stay within one terminal row
• Fixed the /bug and /feedback description field showing no cursor when the terminal's native cursor is enabled
• Fixed Remote Control sessions served by claude remote-control showing a generated name instead of their session title in ListAgents
• Fixed claude plugin validate rejecting plugin paths whose directory name begins with two dots, which the plugin loader accepts
• Fixed plugins silently skipping a default monitors file or root SKILL.md that could not be checked
• Fixed WebFetch's error for localhost and other dotless hostnames to explain why the URL is refused and suggest curl
• Fixed PermissionRequest hooks not firing in --print mode
• Fixed policy-helper warnings not printing on headless (-p) runs
• Fixed /resume listing a /fork background session under its parent's name instead of its own ⑂ fork name
• Fixed /remote-control and other claude.ai-gated commands to suggest /login when signed out instead of showing a Claude for Enterprise migration message
• Fixed CLAUDE_CODE_SESSIONEND_HOOKS_TIMEOUT_MS not extending SessionEnd hooks that have no per-hook timeout (they were still cancelled after 1.5 seconds)
• Fixed /autofix-pr and other cloud-session commands saying to retry or install the Claude GitHub App when no GitHub account is connected; they now point to /web-setup or the web connect page
• Fixed cloud-session commands such as /teleport and /remote-env to explain when an organization policy turns them off, instead of answering "Unknown command"
• Fixed Bash sandbox instructions over-stating confinement: no unenforced path lists when filesystem isolation is off, and strict mode no longer claims commands can never run unsandboxed
• Improved fullscreen mode: adding or removing a prompt line (Shift+Enter) now repaints as fast as typing a character instead of re-rendering the visible transcript
• Improved --continue / --resume: the conversation appears immediately instead of waiting for SessionStart hooks, and the first message no longer re-reads the whole transcript
• Improved responsiveness during tool-heavy turns by no longer redrawing the transcript for a hidden per-tool-batch reminder
• Improved startup time in projects with .claude/workflows/ scripts: listing them no longer parses each script
• Improved auto mode denials: the message Claude receives now names the rule that blocked the action and asks Claude to try a safer method and finish unrelated work before stopping to ask you
• Improved Claude in Chrome: long page reads now stay inline instead of being saved to a file and read back
• Improved the MEMORY.md truncation warning to say how many lines were cut and where the cut starts
• Improved the terminal permission prompt for artifacts: it now leads with the ask's question
• Improved the prompt footer: an editor or /diff selection now shows inside the prompt input, and fullscreen mode shows Remote Control status in the header instead of the footer
• Improved the "Usage credits required for 1M context" message to say that usage credits turned on mid-session take effect after restarting Claude Code
• Improved /plugin: installing, enabling or disabling a plugin now takes effect when you close the menu; /reload-plugins is no longer needed afterwards
• Changed the system prompt on Bedrock, Vertex and Foundry to deliver environment, model and settings details as attachments, matching first-party sessions
• Changed Bedrock, Vertex and Foundry sessions to keep the tool list byte-stable across a conversation (late-connecting tools load deferred instead of rewriting it), matching first-party sessions
• Changed the task-tracking tools (TaskCreate/Get/Update/List, TodoWrite) to be offered only on Claude 3.x, Opus 4.0–4.7, Sonnet 4.0–4.6, Haiku 4.5; set CLAUDE_CODE_ENABLE_TODO_TOOLS=1 elsewhere
• Changed the artifact data-edit permission prompt in the terminal to a card that shows the document count and who can open the artifact
• Changed local Cowork sessions set to skip all approvals: the Artifact tool now refuses a local file outside the session's folders, or behind a symlink, instead of reading it without asking
• Changed plain WebFetch deny and ask rules to no longer apply to Artifact tool reads and updates; use an Artifact rule (or WebFetch(domain:claude.ai)) to block or gate them
• Changed the "N MCP servers need authentication" startup notice to announce each server once instead of at every launch
• [VSCode] Fixed the session list, settings toggles, and chat tabs when CLAUDE_CONFIG_DIR is set in a settings file or the environmentVariables setting
• [VSCode] Fixed the model pill, model picker and command menu going blank in open tabs for a few seconds after a login, logout or account switch
• [VSCode] Fixed Auto disappearing from the mode picker in new-tab or just-reloaded conversations when a project or local setting overrides the model named in ~/.claude/settings.json
• [VSCode] Fixed session names reverting to the last prompt after a window reload when a SessionStart hook is configured
• [VSCode] Fixed the footer's model pill and Remote Control pill waiting for the new tab's Claude process to start when another tab in the window is already up
• [VSCode] Fixed a second Claude process running through its full startup when a session tab's launch arrived more than half a second after its config read
• [VSCode] Fixed resuming a session from the session list ignoring claudeCode.preferredLocation: "sidebar" (it always opened a panel), and programmatic opens resetting that setting to "panel"
• [VSCode] Fixed Windows issues: the WSL install prompt no longer appears on machines without WSL installed, and IDE diagnostics are now returned correctly for Windows files when WSL is installed
• [VSCode] Fixed the custom style builder saving a User level style in a folder the CLI does not read when CLAUDE_CONFIG_DIR is set through settings
• [VSCode] Added Left and Right arrow keys to change where an always-allow permission rule is saved, for keyboard and screen reader users
• [VSCode] Added a "Claude Code: Focus last message" command that moves keyboard focus to the newest message in the conversation, for keyboard and screen reader users
• [VSCode] Changed the Manage plugins dialog to apply installs, enables, disables and uninstalls to open sessions without a restart
• [VSCode] Changed some artifact permission prompts to omit the "don't ask again" choice, matching the terminal
• [Claude Code on the web] Fixed cloud sessions running longer than about six hours silently losing files saved to persisted session folders; saves now persist for up to a day
• [Claude Code on the web] Fixed "Invalid effort level" errors when a routine resumes a session, or a session starts with no set effort, in orgs where an admin caps a model's effort
• [Claude Code on the web] Improved routine creation from a conversation: when the new routine has no connectors, Claude now says so and how to add them instead of only confirming it
• [Claude Tag] Fixed the admin settings page hanging on a loading skeleton or going blank after a transient load failure; a section that fails to load now shows a Retry button
• [Claude Tag] Added a link from a Slack channel's configure page back to the organization's Claude in Slack admin settings
• [Claude Tag] Fixed a Slack Enterprise Grid channel losing its Claude settings (repository, environment, access) after a Slack admin moved it to another workspace
• [Claude Tag] Improved how Claude explains a blocked action: it now says whether a permission check, its own decision to confirm first, or missing access stopped it
• [Claude Tag] Improved reply speed: Claude now runs several read-only lookups (searching Slack, reading a thread, finding people) at once instead of one after another
• [Claude Tag] Improved formatting of comparisons: sentence-length comparisons now come as lists instead of wide tables that scroll sideways, and long table cells wrap
• [Claude Tag] Fixed @Claude !restart in a thread with its own session sometimes also posting a contradictory "this thread is handled by the channel session" notice
• [Claude Tag] Improved the message shown when your Claude account is in a different organization than the Slack workspace: it now explains how to connect the workspace to your org
• [Claude Tag] Fixed Markdown links whose URL is wrapped in angle brackets showing as literal bracket text in Slack instead of a clickable link
• [Claude Tag] Fixed a workspace guest's top-level @mention in a channel where guests may use Claude sometimes getting a "your Slack account isn't connected" reply instead of an answer
• [Claude Tag] Fixed a channel's long-running session being replaced with a fresh one mid-conversation; the scheduled refresh now waits until the channel and its threads are quiet
• [Claude Tag] Fixed channel-settings cards clicked more than once telling the proposing session the change was refused after it had already applied; the outcome is now sent once
• [Claude Tag] Changed memory in public channels: each channel now keeps its own notes, and Claude no longer recalls notes it saved in other public channels; workspace notes stay shared
• [Code Review] Added a note under the still-open findings list in follow-up reviews: resolving a finding's thread, not just replying to it, stops later reviews from counting it as open
• [Code Review] Fixed reviews sometimes ending as incomplete when one of the agents verifying a finding failed midway; the review now replaces that agent and reaches a verdict
• [Code Review] Fixed a push-triggered review that was queued behind a running review still posting after the pull request had been converted to draft
• [Code Review] Fixed reviews ignoring a directory's CLAUDE.md conventions when the PR edited a root file (e.g. README.md) that only shares a name with a file that CLAUDE.md lists