983 pages for bash.

migration-guide Claude Developer Platform · in the page models/sonnet-5-5/migration-guide …et-5-5/migration-guide#turn-off-up-front-thinking). <CodeGroup> ```bash cURL curl https://api.anthropic.com/v1/messages \ -H "x-api-key: $ANTHROPIC_API_KEY" \ -H "anthropic-version: 2023-… overview Claude Developer Platform · in the page release-notes/overview …system prompt, an attached document, or the output of a tool such as `bash`, `read`, or an MCP tool does not count: a `web_fetch` call for it returns a `url_not_in_prior_context` error result to the a… reduce-latency Claude Developer Platform · in the page test-and-evaluate/strengthen-guardrails/reduce-latency …evel, and leaves room in `max_tokens` for thinking: <CodeGroup> ```bash cURL # For time-sensitive applications, use Claude Haiku 5.5 at low effort curl https://api.anthropic.com/v1/messages \… Use Claude Code with a screen reader Claude Code CLI · in the page accessibility …ll: set the `CLAUDE_AX_SCREEN_READER` environment variable to `1`. In Bash or Zsh, run `export CLAUDE_AX_SCREEN_READER=1`. In PowerShell, run `$env:CLAUDE_AX_SCREEN_READER = "1"`. Add that line to you… Set up Claude Code for your organization Claude Code CLI · in the page admin-setup …different layers. Denying WebFetch blocks Claude's fetch tool, but if Bash is allowed, `curl` and `wget` can still reach any URL. Sandboxing closes that gap with a network domain allowlist enforced at… Escalate hard decisions with the advisor tool Claude Code CLI · in the page advisor …ession without changing your saved setting, launch with the flag: ```bash theme={null} claude --advisor opus ``` Claude Code uses the flag instead of the `advisorModel` setting for that session. It… How the agent loop works Claude Code CLI · in the page agent-sdk/agent-loop …session metadata. Then the loop begins: 1. **Turn 1:** Claude calls `Bash` to run `npm test`. The SDK yields an [`AssistantMessage`](#message-types) with the tool call, executes the command, then yie… Use Claude Code features in the SDK Claude Code CLI · in the page agent-sdk/claude-code-features …rces=["user", "project"], allowed_tools=["Read", "Edit", "Bash"], ), ): if isinstance(message, AssistantMessage): for block in message.content:… Give Claude custom tools Claude Code CLI · in the page agent-sdk/custom-tools …d it with the package manager your project uses: **Python (uv)** ```bash theme={null} uv add httpx ``` **Python (pip)** ```bash theme={null} pip install httpx ``` ### Weather tool example This e… Rewind file changes with checkpointing Claude Code CLI · in the page agent-sdk/file-checkpointing …[!WARNING] > > `rewindFiles()` doesn't undo what `sed -i` or another Bash command did to a file, unless a tool such as Write or Edit had modified that file in the main conversation. [Subagent](/docs/… Intercept and control agent behavior with hooks Claude Code CLI · in the page agent-sdk/hooks …this hook to the Write and Edit tools. If Claude writes `.env` with a Bash command, the hook doesn't run. To block Bash writes to a file where [the sandbox runs](/docs/en/sandboxing.md), see the sandb… Hosting the Agent SDK Claude Code CLI · in the page agent-sdk/hosting …ed only for traces; omit it if you export metrics and logs alone. ```bash title=".env" theme={null} CLAUDE_CODE_ENABLE_TELEMETRY=1 CLAUDE_CODE_ENHANCED_TELEMETRY_BETA=1 OTEL_TRACES_EXPORTER=otlp OTEL… Connect to external tools with MCP Claude Code CLI · in the page agent-sdk/mcp …its"` does not auto-approve MCP tools (only file edits and filesystem Bash commands). `permissionMode: "bypassPermissions"` does auto-approve MCP tools but also disables most other safety prompts, whi… Migrate to Claude Agent SDK Claude Code CLI · in the page agent-sdk/migration-guide …peScript or JavaScript project **1. Uninstall the old package:** ```bash theme={null} npm uninstall @anthropic-ai/claude-code ``` **2. Install the new package:** ```bash theme={null} npm install @… Modifying system prompts Claude Code CLI · in the page agent-sdk/modifying-system-prompts …built-in commit and pull request instructions, which are part of the Bash tool's description and reach Claude even with a custom `systemPrompt`. With the minimal default, a custom `systemPrompt`, or… Observability with OpenTelemetry Claude Code CLI · in the page agent-sdk/observability …propagation is enabled, the CLI also forwards `TRACEPARENT` to every Bash and PowerShell command it runs. If a command launched through the Bash tool emits its own OpenTelemetry spans, those spans ne… Configure permissions Claude Code CLI · in the page agent-sdk/permissions …blocked, even in `bypassPermissions` mode. Bare-name deny rules like `Bash` remove the tool from Claude's context before this evaluation begins, so only scoped rules like `Bash(rm *)` are checked at t… Agent SDK reference - Python Claude Code CLI · in the page agent-sdk/python …system Python fails with `error: externally-managed-environment`. ```bash theme={null} python3 -m venv .venv source .venv/bin/activate pip install claude-agent-sdk ``` For uv, Windows PowerShell, an… Quickstart Claude Code CLI · in the page agent-sdk/quickstart …e a project folder** Create a new directory for this quickstart: ```bash theme={null} mkdir my-agent cd my-agent ``` For your own projects, you can run the SDK from any folder; it will have access… Securely deploying AI agents Claude Code CLI · in the page agent-sdk/secure-deployment …urity.md) for full details. * **Permissions system**: Every tool and bash command can be configured to allow, block, or prompt the user for approval. Use glob patterns to create rules like "allow all… Persist sessions to external storage Claude Code CLI · in the page agent-sdk/session-storage …with pytest, which isn't an SDK dependency, install pytest first: ```bash theme={null} pip install pytest ``` Then pass your adapter to the suite in a test file as a zero-argument factory, which `ru… Extend agents with skills Claude Code CLI · in the page agent-sdk/skills …nvoke every discovered skill allowed_tools=["Read", "Write", "Bash"], ) async for message in query( prompt="Help me process this PDF document", options=options ):… Stream responses in real-time Claude Code CLI · in the page agent-sdk/streaming-output …tions( include_partial_messages=True, allowed_tools=["Bash", "Read"], ) async for message in query(prompt="List the files in my project", options=options): if isinstan… Get structured output from agents Claude Code CLI · in the page agent-sdk/structured-outputs …each one. It autonomously decides which tools to use (Grep to search, Bash to run git commands) and combines the results into a single structured response. The schema includes optional fields (`autho… Subagents in the SDK Claude Code CLI · in the page agent-sdk/subagents …iling tests - Suggesting fixes for failures""", # Bash access lets this subagent run test commands tools=["Bash", "Read", "Grep"], ),… Scale to many tools with tool search Claude Code CLI · in the page agent-sdk/tool-search …tools that load on demand. The SDK loads core built-in tools such as Bash, Read, and Edit upfront and doesn't count them toward the threshold. A [mod](/docs/en/plugins/mods/reference.md#tools) in one… Agent SDK reference - TypeScript Claude Code CLI · in the page agent-sdk/typescript …including all functions, types, and interfaces. ## Installation ```bash theme={null} npm install @anthropic-ai/claude-agent-sdk ``` > [!NOTE] > > The SDK bundles a native Claude Code binary for yo… TypeScript SDK V2 session API (removed) Claude Code CLI · in the page agent-sdk/typescript-v2-preview …the last V2-compatible release, pin the major and minor version: ```bash theme={null} npm install @anthropic-ai/[email protected] ``` > [!NOTE] > > The SDK bundles a native Claude Code binary fo… Handle approvals and user input Claude Code CLI · in the page agent-sdk/user-input …sions.md) or permission mode. Check `tool_name` for the tool (e.g., `"Bash"`, `"Write"`). 2. **Claude asks a question**: Claude calls the `AskUserQuestion` tool. Check if `tool_name == "AskUserQuestio… Orchestrate teams of Claude Code sessions Claude Code CLI · in the page agent-teams …" } ``` To set the mode for a single session, pass it as a flag: ```bash theme={null} claude --teammate-mode auto ``` The `--teammate-mode` flag is experimental and doesn't appear in `claude --help… Manage multiple agents with agent view Claude Code CLI · in the page agent-view …d come back to it. **1. Open agent view** From your shell, run: ```bash theme={null} claude agents ``` If you haven't yet accepted the [workspace trust dialog](/docs/en/permissions.md#project-allo… Run agents in parallel Claude Code CLI · in the page agents …different problem than splitting work across agents: * A [background bash command](/docs/en/interactive-mode.md#background-bash-commands) runs one shell command without blocking the conversation. It… Claude Code on Amazon Bedrock Claude Code CLI · in the page amazon-bedrock …cess key ID, secret access key, and default region when prompted: ```bash theme={null} aws configure ``` The AWS CLI saves the key to the `default` profile in `~/.aws/credentials`, where the credent… Authentication Claude Code CLI · in the page authentication …ngs, session history, and claude.ai login or API key. For example, in Bash or Zsh, add this alias to `~/.bashrc` or `~/.zshrc` so that `claude-work` uses your work account while `claude` keeps your pe… Auto mode classifier request charges Claude Code CLI · in the page auto-mode-classifier-billing …or in the [`env` settings key](/docs/en/settings-reference#env): ```bash theme={null} export CLAUDE_CODE_AUTO_MODE_SERVER=0 ``` Classifier requests are then always Claude Code's own, billed the sam… Configure auto mode Claude Code CLI · in the page auto-mode-config …live): ```json theme={null} { "permissions": { "ask": [ "Bash(git push *)", "Bash(gh pr create *)" ] } } ``` These rules match commands that begin with `git push` or `gh pr c… Best practices for Claude Code Claude Code CLI · in the page best-practices …laude fetch what it needs**. Tell Claude to pull context itself using Bash commands, MCP tools, or by reading files. *** ## Configure your environment A few setup steps make Claude Code significant… Claude Code changelog Claude Code CLI · in the page changelog …age OpenTelemetry destinations * Changed `sed -i` to get the standard Bash prompt and run as written, not a simulated file-edit preview; like other Bash edits, it is no longer restored by `/rewind` *… Push events into a running session with channels Claude Code CLI · in the page channels …Telegram plugin, which begins polling for messages from your bot: ```bash theme={null} claude --channels plugin:telegram@claude-plugins-official ``` **5. Pair your account** Open Telegram and send… Channels reference Claude Code CLI · in the page channels-reference …s alongside the MCP SDK. Create a new directory and install both: ```bash theme={null} mkdir webhook-channel && cd webhook-channel bun add @modelcontextprotocol/sdk zod ``` **2. Write the channel se… Checkpointing Claude Code CLI · in the page checkpointing …orward, keeping your initial instructions intact ## Limitations ### Bash command changes not tracked Once Claude has edited a file with its file editing tools in your conversation, `/rewind` undoes… Use Claude Code with Chrome Claude Code CLI · in the page chrome …e Code with Chrome** Start Claude Code with the `--chrome` flag: ```bash theme={null} claude --chrome ``` The first time you launch with Chrome, Claude Code shows a one-time dialog that introduces… Claude apps gateway for Amazon Bedrock, Claude Platform on AWS, Google Cloud, and Microsoft Foundry Claude Code CLI · in the page claude-apps-gateway …e gateway is up, the config is valid, and all boot checks passed: ```bash theme={null} curl -s https://claude-gateway.internal.example.com/.well-known/oauth-authorization-server | jq ``` ```json the… Claude apps gateway configuration Claude Code CLI · in the page claude-apps-gateway-config …a key with a self-signed certificate that is valid for one year: ```bash theme={null} openssl req -x509 -newkey rsa:2048 -nodes -keyout idp-client.key -out idp-client.crt -days 365 -subj "/CN=claude… Claude apps gateway deployment and operations Claude Code CLI · in the page claude-apps-gateway-deploy …take longer. This example sets 60 seconds in a developer's shell: ```bash theme={null} export CLAUDE_STREAM_FIRST_BYTE_TIMEOUT_MS=60000 ``` An unanswered re-send can wait 5 to 6 minutes, until the [… Deploy Claude apps gateway on AWS Claude Code CLI · in the page claude-apps-gateway-on-aws …subnets to find two private ones in different Availability Zones: ```bash theme={null} aws ec2 describe-subnets --filters "Name=vpc-id,Values=<your-vpc-id>" \ --query 'Subnets[].{ID:SubnetId,AZ:Ava… Deploy Claude apps gateway on Google Cloud Claude Code CLI · in the page claude-apps-gateway-on-gcp …e pointing at the load balancer Set the project and region once: ```bash theme={null} export PROJECT_ID=<your-project> export REGION=us-east5 # a region where the Claude models you need are publis… Claude apps gateway spend limits Claude Code CLI · in the page claude-apps-gateway-spend-limits …sets an org-wide default of \$500 per month for every developer: ```bash theme={null} curl -sS https://claude-gateway.internal.example.com/v1/organizations/spend_limits \ -H "x-api-key: $GATEWAY_A… Use Claude Code in the cloud Claude Code CLI · in the page claude-code-on-the-web …rt a cloud session from the command line with the `--cloud` flag: ```bash theme={null} claude --cloud "Fix the authentication bug in src/auth/login.ts" ``` This creates a new cloud session on claude… Explore the .claude directory Claude Code CLI · in the page claude-directory …ect a custom output style from output-styles/</>], tips: [<>Bash permission patterns support wildcards: <C>Bash(npm test *)</C> matches any command starting with <C>npm test</C></>, <>Array…