8 ファイル変更+117-24
この更新の概要
PythonとTypeScriptのSDKに、APIのタイムアウトやストールを制御するための環境変数設定と、詳細な権限管理オプションが追加されました。macOSでのショートカットキー「Alt+T」が特別なターミナル設定なしで動作するようになったほか、Windows TerminalでのShift+Enterサポートが明文化されています。JetBrains IDE特有のスクロール挙動の改善や、ステータスラインにおけるトークン計算ロジックの変更など、開発体験を向上させる調整が複数のファイルにわたって実施されました。
思考の深さを指定するeffortパラメータにxhighが追加され、APIタイムアウトやストールを制御する環境変数の解説が拡充されました。また、権限要求時のタイトルや説明文などのメタデータフィールドが追加されています。
@@ -734,6 +734,7 @@ class ClaudeAgentOptions:
allowed_tools: list[str] = field(default_factory=list)
system_prompt: str | SystemPromptPreset | None = None
mcp_servers: dict[str, McpServerConfig] | str | Path = field(default_factory=dict)
strict_mcp_config: bool = False
permission_mode: PermissionMode | None = None
continue_conversation: bool = False
resume: str | None = None
@@ -758,6 +759,7 @@ class ClaudeAgentOptions:
hooks: dict[HookEvent, list[HookMatcher]] | None = None
user: str | None = None
include_partial_messages: bool = False
include_hook_events: bool = False
fork_session: bool = False
agents: dict[str, AgentDefinition] | None = None
setting_sources: list[SettingSource] | None = None
@@ -765,7 +767,7 @@ class ClaudeAgentOptions:
plugins: list[SdkPluginConfig] = field(default_factory=list)
max_thinking_tokens: int | None = None # Deprecated: use thinking instead
thinking: ThinkingConfig | None = None
effort: Literal["low", "medium", "high", "max"] | None = None
effort: Literal["low", "medium", "high", "xhigh", "max"] | None = None
enable_file_checkpointing: bool = False
session_store: SessionStore | None = None
session_store_flush: SessionStoreFlushMode = "batched"
@@ -777,6 +779,7 @@ class ClaudeAgentOptions:
| `allowed_tools` | `list[str]` | `[]` | Tools to auto-approve without prompting. This does not restrict Claude to only these tools; unlisted tools fall through to `permission_mode` and `can_use_tool`. Use `disallowed_tools` to block tools. See [Permissions](/en/agent-sdk/permissions#allow-and-deny-rules) |
| `system_prompt` | `str \| SystemPromptPreset \| None` | `None` | System prompt configuration. Pass a string for custom prompt, or use `{"type": "preset", "preset": "claude_code"}` for Claude Code's system prompt. Add `"append"` to extend the preset |
| `mcp_servers` | `dict[str, McpServerConfig] \| str \| Path` | `{}` | MCP server configurations or path to config file |
| `strict_mcp_config` | `bool` | `False` | When `True`, use only the servers passed in `mcp_servers` and ignore project `.mcp.json`, user settings, and plugin-provided MCP servers. Maps to the CLI `--strict-mcp-config` flag |
| `permission_mode` | `PermissionMode \| None` | `None` | Permission mode for tool usage |
| `continue_conversation` | `bool` | `False` | Continue the most recent conversation |
| `resume` | `str \| None` | `None` | Session ID to resume |
@@ -793,7 +796,7 @@ class ClaudeAgentOptions:
| `cli_path` | `str \| Path \| None` | `None` | Custom path to the Claude Code CLI executable |
| `settings` | `str \| None` | `None` | Path to settings file |
| `add_dirs` | `list[str \| Path]` | `[]` | Additional directories Claude can access |
| `env` | `dict[str, str]` | `{}` | Environment variables merged on top of the inherited process environment. See [Environment variables](/en/env-vars) for variables the underlying CLI reads |
| `env` | `dict[str, str]` | `{}` | Environment variables merged on top of the inherited process environment. See [Environment variables](/en/env-vars) for variables the underlying CLI reads, and [Handle slow or stalled API responses](#handle-slow-or-stalled-api-responses) for timeout-related variables |
| `extra_args` | `dict[str, str \| None]` | `{}` | Additional CLI arguments to pass directly to the CLI |
| `max_buffer_size` | `int \| None` | `None` | Maximum bytes when buffering CLI stdout |
| `debug_stderr` | `Any` | `sys.stderr` | *Deprecated* - File-like object for debug output. Use `stderr` callback instead |
@@ -802,6 +805,7 @@ class ClaudeAgentOptions:
| `hooks` | `dict[HookEvent, list[HookMatcher]] \| None` | `None` | Hook configurations for intercepting events |
| `user` | `str \| None` | `None` | User identifier |
| `include_partial_messages` | `bool` | `False` | Include partial message streaming events. When enabled, [`StreamEvent`](#streamevent) messages are yielded |
| `include_hook_events` | `bool` | `False` | Include hook lifecycle events in the message stream as `HookEventMessage` objects |
| `fork_session` | `bool` | `False` | When resuming with `resume`, fork to a new session ID instead of continuing the original session |
| `agents` | `dict[str, AgentDefinition] \| None` | `None` | Programmatically defined subagents |
| `plugins` | `list[SdkPluginConfig]` | `[]` | Load custom plugins from local paths. See [Plugins](/en/agent-sdk/plugins) for details |
@@ -809,10 +813,29 @@ class ClaudeAgentOptions:
| `setting_sources` | `list[SettingSource] \| None` | `None` (CLI defaults: all sources) | Control which filesystem settings to load. Pass `[]` to disable user, project, and local settings. Managed policy settings load regardless. See [Use Claude Code features](/en/agent-sdk/claude-code-features#what-settingsources-does-not-control) |
| `max_thinking_tokens` | `int \| None` | `None` | *Deprecated* - Maximum tokens for thinking blocks. Use `thinking` instead |
| `thinking` | [`ThinkingConfig`](#thinkingconfig) ` \| None` | `None` | Controls extended thinking behavior. Takes precedence over `max_thinking_tokens` |
| `effort` | `Literal["low", "medium", "high", "max"] \| None` | `None` | Effort level for thinking depth |
| `effort` | `Literal["low", "medium", "high", "xhigh", "max"] \| None` | `None` | Effort level for thinking depth |
| `session_store` | [`SessionStore`](/en/agent-sdk/session-storage#the-sessionstore-interface) ` \| None` | `None` | Mirror session transcripts to an external backend so any host can resume them. See [Persist sessions to external storage](/en/agent-sdk/session-storage) |
| `session_store_flush` | `Literal["batched", "eager"]` | `"batched"` | When to flush mirrored transcript entries to `session_store`. `"batched"` flushes once per turn or when the buffer fills; `"eager"` triggers a background flush after every frame. Ignored when `session_store` is `None` |
#### Handle slow or stalled API responses
The CLI subprocess reads several environment variables that control API timeouts and stall detection. Pass them through `ClaudeAgentOptions.env`:
```python
options = ClaudeAgentOptions(
env={
"API_TIMEOUT_MS": "120000",
"CLAUDE_CODE_MAX_RETRIES": "2",
"CLAUDE_ASYNC_AGENT_STALL_TIMEOUT_MS": "120000",
},
)
```
- `API_TIMEOUT_MS`: per-request timeout on the Anthropic client, in milliseconds. Default `600000`. Applies to the main loop and all subagents.
- `CLAUDE_CODE_MAX_RETRIES`: maximum API retries. Default `10`. Each retry gets its own `API_TIMEOUT_MS` window, so worst-case wall time is roughly `API_TIMEOUT_MS × (CLAUDE_CODE_MAX_RETRIES + 1)` plus backoff.
- `CLAUDE_ASYNC_AGENT_STALL_TIMEOUT_MS`: stall watchdog for subagents launched with `run_in_background`. Default `600000`. Resets on each stream event; on stall it aborts the subagent, marks the task failed, and surfaces the error to the parent with any partial result. Does not apply to synchronous subagents.
- `CLAUDE_ENABLE_STREAM_WATCHDOG=1` with `CLAUDE_STREAM_IDLE_TIMEOUT_MS`: aborts the request when headers have arrived but the response body stops streaming. Off by default. `CLAUDE_STREAM_IDLE_TIMEOUT_MS` defaults to `300000` and is clamped to that minimum. The aborted request goes through the normal retry path.
### `OutputFormat`
Configuration for structured output validation. Pass this as a `dict` to the `output_format` field on `ClaudeAgentOptions`:
@@ -990,7 +1013,7 @@ class AgentDefinition:
initialPrompt: str | None = None
maxTurns: int | None = None
background: bool | None = None
effort: Literal["low", "medium", "high", "max"] | int | None = None
effort: Literal["low", "medium", "high", "xhigh", "max"] | int | None = None
permissionMode: PermissionMode | None = None
```
@@ -1053,12 +1076,22 @@ Context information passed to tool permission callbacks.
class ToolPermissionContext:
signal: Any | None = None # Future: abort signal support
suggestions: list[PermissionUpdate] = field(default_factory=list)
blocked_path: str | None = None
decision_reason: str | None = None
title: str | None = None
display_name: str | None = None
description: str | None = None
```
| Field | Type | Description |
| :- | :- | :- |
| `signal` | `Any \| None` | Reserved for future abort signal support |
| `suggestions` | `list[PermissionUpdate]` | Permission update suggestions from the CLI. Bash prompts include a suggestion with the `localSettings` destination, so returning it in `updated_permissions` writes the rule to `.claude/settings.local.json` and persists across sessions. |
| `blocked_path` | `str \| None` | File path that triggered the permission request, when applicable. For example, when a Bash command tries to access a path outside allowed directories |
| `decision_reason` | `str \| None` | Reason this permission request was triggered. Forwarded from a PreToolUse hook's `permissionDecisionReason` when the hook returned `"ask"` |
| `title` | `str \| None` | Full permission prompt sentence, such as `Claude wants to read foo.txt`. Use as the primary prompt text when present |
| `display_name` | `str \| None` | Short noun phrase for the tool action, such as `Read file`, suitable for button labels |
| `description` | `str \| None` | Human-readable subtitle for the permission UI |
### `PermissionResult`
@@ -1440,6 +1473,7 @@ class ResultMessage:
stop_reason: str | None = None
structured_output: Any = None
model_usage: dict[str, Any] | None = None
deferred_tool_use: DeferredToolUse | None = None
```
The `usage` dict contains the following keys when present:
@@ -2091,7 +2125,7 @@ A discriminated union of event-specific output types. The `hookEventName` field
```python
class PreToolUseHookSpecificOutput(TypedDict):
hookEventName: Literal["PreToolUse"]
permissionDecision: NotRequired[Literal["allow", "deny", "ask"]]
permissionDecision: NotRequired[Literal["allow", "deny", "ask", "defer"]]
permissionDecisionReason: NotRequired[str]
updatedInput: NotRequired[dict[str, Any]]
additionalContext: NotRequired[str]
@@ -2099,6 +2133,7 @@ class PreToolUseHookSpecificOutput(TypedDict):
class PostToolUseHookSpecificOutput(TypedDict):
hookEventName: Literal["PostToolUse"]
additionalContext: NotRequired[str]
updatedToolOutput: NotRequired[Any]
updatedMCPToolOutput: NotRequired[Any]
class PostToolUseFailureHookSpecificOutput(TypedDict):
実行中にモデルや権限などの設定を動的に変更できるapplyFlagSettingsメソッドが追加されました。Python版と同様に、ストール検知のタイムアウト設定などの詳細なAPI制御オプションも導入されています。
@@ -330,7 +330,7 @@ Configuration object for the `query()` function.
| `disallowedTools` | `string[]` | `[]` | Tools to always deny. Deny rules are checked first and override `allowedTools` and `permissionMode` (including `bypassPermissions`) |
| `effort` | `'low' \| 'medium' \| 'high' \| 'xhigh' \| 'max'` | `'high'` | Controls how much effort Claude puts into its response. Works with adaptive thinking to guide thinking depth |
| `enableFileCheckpointing` | `boolean` | `false` | Enable file change tracking for rewinding. See [File checkpointing](/en/agent-sdk/file-checkpointing) |
| `env` | `Record<string, string \| undefined>` | `process.env` | Environment variables. See [Environment variables](/en/env-vars) for variables the underlying CLI reads. Set `CLAUDE_AGENT_SDK_CLIENT_APP` to identify your app in the User-Agent header |
| `env` | `Record<string, string \| undefined>` | `process.env` | Environment variables. See [Environment variables](/en/env-vars) for variables the underlying CLI reads, and [Handle slow or stalled API responses](#handle-slow-or-stalled-api-responses) for timeout-related variables. Set `CLAUDE_AGENT_SDK_CLIENT_APP` to identify your app in the User-Agent header |
| `executable` | `'bun' \| 'deno' \| 'node'` | Auto-detected | JavaScript runtime to use |
| `executableArgs` | `string[]` | `[]` | Arguments to pass to the executable |
| `extraArgs` | `Record<string, string \| null>` | `{}` | Additional arguments |
@@ -355,6 +355,7 @@ Configuration object for the `query()` function.
| `sandbox` | [`SandboxSettings`](#sandboxsettings) | `undefined` | Configure sandbox behavior programmatically. See [Sandbox settings](#sandboxsettings) for details |
| `sessionId` | `string` | Auto-generated | Use a specific UUID for the session instead of auto-generating one |
| `sessionStore` | [`SessionStore`](/en/agent-sdk/session-storage#the-sessionstore-interface) | `undefined` | Mirror session transcripts to an external backend so any host can resume them. See [Persist sessions to external storage](/en/agent-sdk/session-storage) |
| `settings` | `string \| Settings` | `undefined` | Inline [settings](/en/settings) object or path to a settings file. Populates the flag-settings layer in the [precedence order](/en/settings#settings-precedence). Change at runtime with [`applyFlagSettings()`](#applyflagsettings) |
| `settingSources` | [`SettingSource`](#settingsource)`[]` | CLI defaults (all sources) | Control which filesystem settings to load. Pass `[]` to disable user, project, and local settings. Managed policy settings load regardless. See [Use Claude Code features](/en/agent-sdk/claude-code-features#what-settingsources-does-not-control) |
| `spawnClaudeCodeProcess` | `(options: SpawnOptions) => SpawnedProcess` | `undefined` | Custom function to spawn the Claude Code process. Use to run Claude Code in VMs, containers, or remote environments |
| `stderr` | `(data: string) => void` | `undefined` | Callback for stderr output |
@@ -364,6 +365,29 @@ Configuration object for the `query()` function.
| `toolConfig` | [`ToolConfig`](#toolconfig) | `undefined` | Configuration for built-in tool behavior. See [`ToolConfig`](#toolconfig) for details |
| `tools` | `string[] \| { type: 'preset'; preset: 'claude_code' }` | `undefined` | Tool configuration. Pass an array of tool names or use the preset to get Claude Code's default tools |
#### Handle slow or stalled API responses
The CLI subprocess reads several environment variables that control API timeouts and stall detection. Pass them through the `env` option:
```typescript
const result = query({
prompt: "Analyze this code",
options: {
env: {
...process.env,
API_TIMEOUT_MS: "120000",
CLAUDE_CODE_MAX_RETRIES: "2",
CLAUDE_ASYNC_AGENT_STALL_TIMEOUT_MS: "120000",
},
},
});
```
- `API_TIMEOUT_MS`: per-request timeout on the Anthropic client, in milliseconds. Default `600000`. Applies to the main loop and all subagents.
- `CLAUDE_CODE_MAX_RETRIES`: maximum API retries. Default `10`. Each retry gets its own `API_TIMEOUT_MS` window, so worst-case wall time is roughly `API_TIMEOUT_MS × (CLAUDE_CODE_MAX_RETRIES + 1)` plus backoff.
- `CLAUDE_ASYNC_AGENT_STALL_TIMEOUT_MS`: stall watchdog for subagents launched with `run_in_background`. Default `600000`. Resets on each stream event; on stall it aborts the subagent, marks the task failed, and surfaces the error to the parent with any partial result. Does not apply to synchronous subagents.
- `CLAUDE_ENABLE_STREAM_WATCHDOG=1` with `CLAUDE_STREAM_IDLE_TIMEOUT_MS`: aborts the request when headers have arrived but the response body stops streaming. Off by default. `CLAUDE_STREAM_IDLE_TIMEOUT_MS` defaults to `300000` and is clamped to that minimum. The aborted request goes through the normal retry path.
### `Query` object
Interface returned by the `query()` function.
@@ -378,6 +402,7 @@ interface Query extends AsyncGenerator<SDKMessage, void> {
setPermissionMode(mode: PermissionMode): Promise<void>;
setModel(model?: string): Promise<void>;
setMaxThinkingTokens(maxThinkingTokens: number | null): Promise<void>;
applyFlagSettings(settings: { [K in keyof Settings]?: Settings[K] | null }): Promise<void>;
initializationResult(): Promise<SDKControlInitializeResponse>;
supportedCommands(): Promise<SlashCommand[]>;
supportedModels(): Promise<ModelInfo[]>;
@@ -402,6 +427,7 @@ interface Query extends AsyncGenerator<SDKMessage, void> {
| `setPermissionMode()` | Changes the permission mode (only available in streaming input mode) |
| `setModel()` | Changes the model (only available in streaming input mode) |
| `setMaxThinkingTokens()` | *Deprecated:* Use the `thinking` option instead. Changes the maximum thinking tokens |
| `applyFlagSettings(settings)` | Merges settings into the session's flag settings layer at runtime (only available in streaming input mode). See [`applyFlagSettings()`](#applyflagsettings) |
| `initializationResult()` | Returns the full initialization result including supported commands, models, account info, and output style configuration |
| `supportedCommands()` | Returns available slash commands |
| `supportedModels()` | Returns available models with display info |
@@ -415,6 +441,30 @@ interface Query extends AsyncGenerator<SDKMessage, void> {
| `stopTask(taskId)` | Stop a running background task by ID |
| `close()` | Close the query and terminate the underlying process. Forcefully ends the query and cleans up all resources |
#### `applyFlagSettings()`
Changes any [setting](/en/settings) on a running session without restarting the query. Use it when a setting that has no dedicated setter needs to change mid-session, such as tightening `permissions` after the agent reads untrusted input. `setModel()` and `setPermissionMode()` are dedicated setters for those two keys; `applyFlagSettings()` is the general form that accepts any subset of the settings keys, and passing `model` here behaves the same as `setModel()`.
The values are written to the flag-settings layer, the same layer the inline `settings` option of `query()` populates at startup. Flag settings sit near the top of the [settings precedence order](/en/settings#settings-precedence): they override user, project, and local settings, and only managed policy settings can override them. This is the same tier the [on-page precedence section](#settings-precedence) calls programmatic options.
Successive calls shallow-merge top-level keys. A second call with `{ permissions: {...} }` replaces the entire `permissions` object from the prior call rather than deep-merging into it. To clear a key from the flag layer and fall back to lower-precedence sources, pass `null` for that key. Passing `undefined` has no effect because JSON serialization drops it.
Only available in streaming input mode, the same constraint as `setModel()` and `setPermissionMode()`.
The example below switches the active model mid-session, then clears the override so the model falls back to whatever the user or project settings specify.
```typescript
const q = query({ prompt: messageStream });
// Override the model for the rest of the session
await q.applyFlagSettings({ model: "claude-opus-4-6" });
// Later: clear the override and fall back to lower-precedence settings
await q.applyFlagSettings({ model: null });
```
`applyFlagSettings()` is TypeScript-only. The Python SDK does not expose an equivalent method.
### `WarmQuery`
Handle returned by [`startup()`](#startup). The subprocess is already spawned and initialized, so calling `query()` on this handle writes the prompt directly to a ready process with no startup latency.
@@ -612,7 +662,7 @@ When multiple sources are loaded, settings are merged with this precedence (high
2. Project settings (`.claude/settings.json`)
3. User settings (`~/.claude/settings.json`)
Programmatic options such as `agents` and `allowedTools` override user, project, and local filesystem settings. Managed policy settings take precedence over programmatic options.
Programmatic options such as `agents`, `allowedTools`, and `settings` override user, project, and local filesystem settings. Managed policy settings take precedence over programmatic options.
### `PermissionMode`
サブエージェントのストールタイムアウトや、フルスクリーン表示を強制無効化するCLAUDE_CODE_DISABLE_ALTERNATE_SCREENなどの新しい環境変数が定義されました。
@@ -52,6 +52,7 @@ Claude Code supports the following environment variables to control its behavior
| `CLAUDECODE` | Set to `1` in shell environments Claude Code spawns (Bash tool, tmux sessions). Not set in [hooks](/en/hooks) or [status line](/en/statusline) commands. Use to detect when a script is running inside a shell spawned by Claude Code |
| `CLAUDE_AGENT_SDK_DISABLE_BUILTIN_AGENTS` | Set to `1` to disable all built-in [subagent](/en/sub-agents) types such as Explore and Plan. Only applies in non-interactive mode (the `-p` flag). Useful for SDK users who want a blank slate |
| `CLAUDE_AGENT_SDK_MCP_NO_PREFIX` | Set to `1` to skip the `mcp__<server>__` prefix on tool names from SDK-created MCP servers. Tools use their original names. SDK usage only |
| `CLAUDE_ASYNC_AGENT_STALL_TIMEOUT_MS` | Stall timeout in milliseconds for background subagents. Default `600000` (10 minutes). The timer resets on each streaming progress event; if no progress arrives within the window, the subagent is aborted and the task is marked failed, surfacing any partial result to the parent |
| `CLAUDE_AUTOCOMPACT_PCT_OVERRIDE` | Set the percentage of context capacity (1-100) at which auto-compaction triggers. By default, auto-compaction triggers at approximately 95% capacity. Use lower values like `50` to compact earlier. Values above the default threshold have no effect. Applies to both main conversations and subagents. This percentage aligns with the `context_window.used_percentage` field available in [status line](/en/statusline) |
| `CLAUDE_AUTO_BACKGROUND_TASKS` | Set to `1` to force-enable automatic backgrounding of long-running agent tasks. When enabled, subagents are moved to the background after running for approximately two minutes |
| `CLAUDE_BASH_MAINTAIN_PROJECT_WORKING_DIR` | Return to the original working directory after each Bash or PowerShell command in the main session |
@@ -69,6 +70,7 @@ Claude Code supports the following environment variables to control its behavior
| `CLAUDE_CODE_DEBUG_LOG_LEVEL` | Minimum log level written to the debug log file. Values: `verbose`, `debug` (default), `info`, `warn`, `error`. Set to `verbose` to include high-volume diagnostics like full status line command output, or raise to `error` to reduce noise |
| `CLAUDE_CODE_DISABLE_1M_CONTEXT` | Set to `1` to disable [1M context window](/en/model-config#extended-context) support. When set, 1M model variants are unavailable in the model picker. Useful for enterprise environments with compliance requirements |
| `CLAUDE_CODE_DISABLE_ADAPTIVE_THINKING` | Set to `1` to disable [adaptive reasoning](/en/model-config#adjust-effort-level) on Opus 4.6 and Sonnet 4.6 and fall back to the fixed thinking budget controlled by `MAX_THINKING_TOKENS`. Has no effect on Opus 4.7, which always uses adaptive reasoning |
| `CLAUDE_CODE_DISABLE_ALTERNATE_SCREEN` | Set to `1` to disable [fullscreen rendering](/en/fullscreen) and use the classic main-screen renderer. The conversation stays in your terminal's native scrollback so `Cmd+f` and tmux copy mode work as usual. Takes precedence over `CLAUDE_CODE_NO_FLICKER` and the [`tui`](/en/settings#available-settings) setting. You can also switch with `/tui default` |
| `CLAUDE_CODE_DISABLE_ATTACHMENTS` | Set to `1` to disable attachment processing. File mentions with `@` syntax are sent as plain text instead of being expanded into file content |
| `CLAUDE_CODE_DISABLE_AUTO_MEMORY` | Set to `1` to disable [auto memory](/en/memory#auto-memory). Set to `0` to force auto memory on during the gradual rollout. When disabled, Claude does not create or load auto memory files |
| `CLAUDE_CODE_DISABLE_BACKGROUND_TASKS` | Set to `1` to disable all background task functionality, including the `run_in_background` parameter on Bash and subagent tools, auto-backgrounding, and the Ctrl+B shortcut |
@@ -135,8 +137,9 @@ Claude Code supports the following environment variables to control its behavior
| `CLAUDE_CODE_REMOTE_SESSION_ID` | Set automatically in [cloud sessions](/en/claude-code-on-the-web) to the current session's ID. Read this to construct a link back to the session transcript. See [Link artifacts back to the session](/en/claude-code-on-the-web#link-artifacts-back-to-the-session) |
| `CLAUDE_CODE_RESUME_INTERRUPTED_TURN` | Set to `1` to automatically resume if the previous session ended mid-turn. Used in SDK mode so the model continues without requiring the SDK to re-send the prompt |
| `CLAUDE_CODE_SCRIPT_CAPS` | JSON object limiting how many times specific scripts may be invoked per session when `CLAUDE_CODE_SUBPROCESS_ENV_SCRUB` is set. Keys are substrings matched against the command text; values are integer call limits. For example, `{"deploy.sh": 2}` allows `deploy.sh` to be called at most twice. Matching is substring-based so shell-expansion tricks like `./scripts/deploy.sh $(evil)` still count against the cap. Runtime fan-out via `xargs` or `find -exec` is not detected; this is a defense-in-depth control |
| `CLAUDE_CODE_SCROLL_SPEED` | Set the mouse wheel scroll multiplier in [fullscreen rendering](/en/fullscreen#mouse-wheel-scrolling). Accepts values from 1 to 20. Set to `3` to match `vim` if your terminal sends one wheel event per notch without amplification |
| `CLAUDE_CODE_SCROLL_SPEED` | Set the mouse wheel scroll multiplier in [fullscreen rendering](/en/fullscreen#mouse-wheel-scrolling). Accepts values from 1 to 20. Set to `3` to match `vim` if your terminal sends one wheel event per notch without amplification. Ignored in the JetBrains IDE terminal, where Claude Code uses its own scroll handling |
| `CLAUDE_CODE_SESSIONEND_HOOKS_TIMEOUT_MS` | Override the time budget in milliseconds for [SessionEnd](/en/hooks#sessionend) hooks. Applies to session exit, `/clear`, and switching sessions via interactive `/resume`. By default the budget is 1.5 seconds, automatically raised to the highest per-hook `timeout` configured in settings files, up to 60 seconds. Timeouts on plugin-provided hooks do not raise the budget |
| `CLAUDE_CODE_SESSION_ID` | Set automatically in Bash and PowerShell tool subprocesses to the current session ID. Matches the `session_id` field passed to [hooks](/en/hooks). Updated on `/clear`. Use to correlate scripts and external tools with the Claude Code session that launched them |
| `CLAUDE_CODE_SHELL` | Override automatic shell detection. Useful when your login shell differs from your preferred working shell (for example, `bash` vs `zsh`) |
| `CLAUDE_CODE_SHELL_PREFIX` | Command prefix that wraps shell commands Claude Code spawns: Bash tool calls, [hook](/en/hooks) commands, and stdio [MCP server](/en/mcp) startup commands. Useful for logging or auditing. Example: setting `/path/to/logger.sh` runs each command as `/path/to/logger.sh <command>` |
| `CLAUDE_CODE_SIMPLE` | Set to `1` to run with a minimal system prompt and only the Bash, file read, and file edit tools. MCP tools from `--mcp-config` are still available. Disables auto-discovery of hooks, skills, plugins, MCP servers, auto memory, and CLAUDE.md. The [`--bare`](/en/headless#start-faster-with-bare-mode) CLI flag sets this |
JetBrains IDEターミナルにおける独自のスクロール処理と、バグ回避のための自動調整機能について説明が追加されました。また、フルスクリーンを無効化する設定手順が更新されています。
@@ -90,6 +90,12 @@ export CLAUDE_CODE_SCROLL_SPEED=3
A value of `3` matches the default in `vim` and similar applications. The setting accepts values from 1 to 20.
### Scroll in the JetBrains IDE terminal
In the JetBrains IDE terminal, Claude Code applies its own scroll handling and ignores `CLAUDE_CODE_SCROLL_SPEED`. The terminal sends scroll events at a much higher rate than other emulators, so a multiplier tuned elsewhere overshoots here.
In 2025.2, the terminal also has scroll-wheel bugs that produce spurious arrow keys and wrong-direction events. Claude Code detects these at runtime and mitigates them automatically, so trackpad and mouse wheel scrolling work without configuration. For the best scroll experience, upgrade to 2025.3 or later. Claude Code shows a hint the first time you scroll if it detects the bug.
## Search and review the conversation
`Ctrl+o` toggles between the normal prompt and transcript mode. For a quieter view that shows only your last prompt, a one-line summary of tool calls with edit diffstats, and the final response, run `/focus`. The setting persists across sessions. Run `/focus` again to turn it off.
@@ -155,4 +161,4 @@ Fullscreen rendering is a research preview feature. It has been tested on common
If you encounter a problem, run `/feedback` inside Claude Code to report it, or open an issue on the [claude-code GitHub repo](https://github.com/anthropics/claude-code/issues). Include your terminal emulator name and version.
To turn fullscreen rendering off, run `/tui default`, or unset the environment variable if you enabled it that way.
To turn fullscreen rendering off, run `/tui default`, or unset `CLAUDE_CODE_NO_FLICKER` if you enabled it that way. To force the classic renderer regardless of the saved `tui` setting, set `CLAUDE_CODE_DISABLE_ALTERNATE_SCREEN=1`. The classic renderer keeps the conversation in your terminal's native scrollback so `Cmd+f` and tmux copy mode work as usual.
macOSでのOption+Tショートカットがターミナル設定なしで動作する旨が記載され、Shift+Enterの標準サポート対象にWindows Terminalが追加されました。
@@ -11,7 +11,7 @@ source: https://code.claude.com/docs/en/interactive-mode.md
Keyboard shortcuts may vary by platform and terminal. Press `?` to see available shortcuts for your environment.
**macOS users**: Option/Alt key shortcuts (`Alt+B`, `Alt+F`, `Alt+Y`, `Alt+M`, `Alt+P`, `Alt+T`) require configuring Option as Meta in your terminal:
**macOS users**: Option/Alt key shortcuts (`Alt+B`, `Alt+F`, `Alt+Y`, `Alt+M`, `Alt+P`) require configuring Option as Meta in your terminal:
- **iTerm2**: Settings → Profiles → Keys → General → set Left/Right Option key to "Esc+"
- **Apple Terminal**: Settings → Profiles → Keyboard → check "Use Option as Meta Key"
@@ -38,7 +38,7 @@ See [Terminal configuration](/en/terminal-config) for details.
| `Esc` + `Esc` | Rewind or summarize | Restore code and/or conversation to a previous point, or summarize from a selected message |
| `Shift+Tab` or `Alt+M` (some configurations) | Cycle permission modes | Cycle through `default`, `acceptEdits`, `plan`, and any modes you have enabled, such as `auto` or `bypassPermissions`. See [permission modes](/en/permission-modes). |
| `Option+P` (macOS) or `Alt+P` (Windows/Linux) | Switch model | Switch models without clearing your prompt |
| `Option+T` (macOS) or `Alt+T` (Windows/Linux) | Toggle extended thinking | Enable or disable extended thinking mode. On macOS, configure your terminal to send Option as Meta for this shortcut to work |
| `Option+T` (macOS) or `Alt+T` (Windows/Linux) | Toggle extended thinking | Enable or disable extended thinking mode. As of v2.1.132 this shortcut works on macOS without configuring Option as Meta |
| `Option+O` (macOS) or `Alt+O` (Windows/Linux) | Toggle fast mode | Enable or disable [fast mode](/en/fast-mode) |
### Text editing
@@ -67,11 +67,11 @@ See [Terminal configuration](/en/terminal-config) for details.
| :- | :- | :- |
| Quick escape | `\` + `Enter` | Works in all terminals |
| Option key | `Option+Enter` | After enabling [Option as Meta](/en/terminal-config#enable-option-key-shortcuts-on-macos) on macOS |
| Shift+Enter | `Shift+Enter` | Native in iTerm2, WezTerm, Ghostty, Kitty, Warp, Apple Terminal |
| Shift+Enter | `Shift+Enter` | Native in iTerm2, WezTerm, Ghostty, Kitty, Warp, Apple Terminal, Windows Terminal |
| Control sequence | `Ctrl+J` | Works in any terminal without configuration |
| Paste mode | Paste directly | For code blocks, logs |
Shift+Enter works without configuration in iTerm2, WezTerm, Ghostty, Kitty, Warp, and Apple Terminal. For VS Code, Cursor, Windsurf, Alacritty, and Zed, run `/terminal-setup` to install the binding.
Shift+Enter works without configuration in iTerm2, WezTerm, Ghostty, Kitty, Warp, Apple Terminal, and Windows Terminal. For VS Code, Cursor, Windsurf, Alacritty, and Zed, run `/terminal-setup` to install the binding.
### Quick commands
@@ -219,7 +219,7 @@ Extended thinking is the reasoning Claude emits before responding. On models tha
| Control | How to set it |
| :- | :- |
| Toggle for the current session | Press `Option+T` on macOS or `Alt+T` on Windows and Linux. May require [terminal configuration](/en/terminal-config) for Option-key shortcuts |
| Toggle for the current session | Press `Option+T` on macOS or `Alt+T` on Windows and Linux |
| Set the global default | Run `/config` and toggle thinking mode. Saved as `alwaysThinkingEnabled` in `~/.claude/settings.json` |
| Disable regardless of effort | Set [`MAX_THINKING_TOKENS=0`](/en/env-vars). Other values apply only with a [fixed thinking budget](#adaptive-reasoning-and-fixed-thinking-budgets) |
@@ -146,7 +146,7 @@ Claude Code sends the following JSON fields to your script via stdin:
| `cost.total_duration_ms` | Total wall-clock time since the session started, in milliseconds |
| `cost.total_api_duration_ms` | Total time spent waiting for API responses in milliseconds |
| `cost.total_lines_added`, `cost.total_lines_removed` | Lines of code changed |
| `context_window.total_input_tokens`, `context_window.total_output_tokens` | Cumulative token counts across the session |
| `context_window.total_input_tokens`, `context_window.total_output_tokens` | Token counts currently in the context window, from the most recent API response. Input includes cache reads and writes. Before v2.1.132 these were cumulative session totals |
| `context_window.context_window_size` | Maximum context window size in tokens. 200000 by default, or 1000000 for models with extended context. |
| `context_window.used_percentage` | Pre-calculated percentage of context window used |
| `context_window.remaining_percentage` | Pre-calculated percentage of context window remaining |
@@ -199,8 +199,8 @@ Your status line command receives this JSON structure via stdin:
"total_lines_removed": 23
},
"context_window": {
"total_input_tokens": 15234,
"total_output_tokens": 4521,
"total_input_tokens": 15500,
"total_output_tokens": 1200,
"context_window_size": 200000,
"used_percentage": 8,
"remaining_percentage": 92,
@@ -263,10 +263,10 @@ Handle missing fields with conditional access and null values with fallback defa
### Context window fields
The `context_window` object provides two ways to track context usage:
The `context_window` object describes the live context window from the most recent API response. As of v2.1.132, `total_input_tokens` and `total_output_tokens` reflect current context usage, not cumulative session totals.
- **Cumulative totals** (`total_input_tokens`, `total_output_tokens`): sum of all tokens across the entire session, useful for tracking total consumption
- **Current usage** (`current_usage`): token counts from the most recent API call, use this for accurate context percentage since it reflects the actual context state
- **Combined totals** (`total_input_tokens`, `total_output_tokens`): tokens currently in the context window. `total_input_tokens` is the sum of `input_tokens`, `cache_creation_input_tokens`, and `cache_read_input_tokens`; `total_output_tokens` is the output tokens from the most recent response. Both are `0` before the first API response.
- **Per-component usage** (`current_usage`): the same token counts broken out by category. Use this when you need cache hits separate from fresh input.
The `current_usage` object contains:
@@ -956,8 +956,7 @@ Community projects like [ccstatusline](https://github.com/sirmalloc/ccstatusline
**Context percentage shows unexpected values**
- Use `used_percentage` for accurate context state rather than cumulative totals
- The `total_input_tokens` and `total_output_tokens` are cumulative across the session and may exceed the context window size
- Use `used_percentage` for the simplest accurate context state
- Context percentage may differ from `/context` output due to when each is calculated
**OSC 8 links not clickable**
@@ -26,9 +26,9 @@ In most terminals you can also press Shift+Enter, but support varies by terminal
| Terminal | Shift+Enter for newline |
| :- | :- |
| Ghostty, Kitty, iTerm2, WezTerm, Warp, Apple Terminal | Works without setup |
| Ghostty, Kitty, iTerm2, WezTerm, Warp, Apple Terminal, Windows Terminal | Works without setup |
| VS Code, Cursor, Windsurf, Alacritty, Zed | Run `/terminal-setup` once |
| Windows Terminal, gnome-terminal, JetBrains IDEs such as PyCharm and Android Studio | Not available; use Ctrl+J or `\` then Enter |
| gnome-terminal, JetBrains IDEs such as PyCharm and Android Studio | Not available; use Ctrl+J or `\` then Enter |
For VS Code, Cursor, Windsurf, Alacritty, and Zed, `/terminal-setup` writes Shift+Enter and other keybindings into the terminal's configuration file. In VS Code, Cursor, and Windsurf it also sets `terminal.integrated.mouseWheelScrollSensitivity` in the editor settings for smoother scrolling in [fullscreen mode](/en/fullscreen). Existing bindings and settings are left in place; if you see a message such as `VSCode terminal Shift+Enter key binding already configured`, no change was made. Run `/terminal-setup` directly in the host terminal rather than inside tmux or screen, since it needs to write to the host terminal's configuration.