844 pages for lang.

workflow-runs Claude Developer Platform · in the page managed-agents/workflow-runs …n` while a run is open. <CodeGroup exclude="shell"> <CodeGroupItem language="cURL"> This workflow needs more logic than a single shell command. Use the [Claude SDK](https://platform.claude.com/… Models overview Claude Developer Platform · in the page models/overview …ls/overview description: Claude is a family of state-of-the-art large language models developed by Anthropic. This guide introduces the available models and compares their performance. --- # Models o… overview Claude Developer Platform · in the page release-notes/overview …s/apple-foundation-models) in beta that adds Claude as a server-side `LanguageModel` in Apple's Foundation Models framework. Call Claude through the same `LanguageModelSession` API as Apple's on-devic… claude-fable-5 Claude Developer Platform · in the page release-notes/system-prompts/claude-fable-5 …seem safer than it was as written — for example, interpreting amorous language as being merely platonic. As another example, Claude should not assume that the user is also a minor, or that if the user… claude-fable-5-1 Claude Developer Platform · in the page release-notes/system-prompts/claude-fable-5-1 …seem safer than it was as written — for example, interpreting amorous language as being merely platonic. As another example, Claude should not assume that the user is also a minor, or that if the user… claude-haiku-3-5 Claude Developer Platform · in the page release-notes/system-prompts/claude-haiku-3-5 …or numbered lists anywhere. Inside prose, it writes lists in natural language like "some things include: x, y, and z" with no bullet points, numbered lists, or newlines. Claude should give concise r… claude-haiku-4-5 Claude Developer Platform · in the page release-notes/system-prompts/claude-haiku-4-5 …seem safer than it was as written — for example, interpreting amorous language as being merely platonic. As another example, Claude should not assume that the person is also a minor, or that if the pe… claude-haiku-5-5 Claude Developer Platform · in the page release-notes/system-prompts/claude-haiku-5-5 …aid self-sexualization. - Claude does not decode, define, or confirm slang, acronyms, or euphemisms used in CSAM trading or access, even in the course of refusing. Knowing which terms are in use is it… claude-opus-4 Claude Developer Platform · in the page release-notes/system-prompts/claude-opus-4 …essive bolded text anywhere. Inside prose, it writes lists in natural language like "some things include: x, y, and z" with no bullet points, numbered lists, or newlines. Claude should give concise r… claude-opus-4-1 Claude Developer Platform · in the page release-notes/system-prompts/claude-opus-4-1 …essive bolded text anywhere. Inside prose, it writes lists in natural language like "some things include: x, y, and z" with no bullet points, numbered lists, or newlines. Claude should give concise r… claude-opus-4-5 Claude Developer Platform · in the page release-notes/system-prompts/claude-opus-4-5 …ve bolded text anywhere. Inside prose, Claude writes lists in natural language like "some things include: x, y, and z" with no bullet points, numbered lists, or newlines. Claude also never uses bulle… claude-opus-4-6 Claude Developer Platform · in the page release-notes/system-prompts/claude-opus-4-6 …ve bolded text anywhere. Inside prose, Claude writes lists in natural language like "some things include: x, y, and z" with no bullet points, numbered lists, or newlines. Claude also never uses bulle… claude-opus-4-7 Claude Developer Platform · in the page release-notes/system-prompts/claude-opus-4-7 …seem safer than it was as written — for example, interpreting amorous language as being merely platonic. As another example, Claude should not assume that the user is also a minor, or that if the user… claude-opus-4-8 Claude Developer Platform · in the page release-notes/system-prompts/claude-opus-4-8 …seem safer than it was as written — for example, interpreting amorous language as being merely platonic. As another example, Claude should not assume that the user is also a minor, or that if the user… claude-opus-5 Claude Developer Platform · in the page release-notes/system-prompts/claude-opus-5 …seem safer than it was as written — for example, interpreting amorous language as being merely platonic. As another example, Claude should not assume that the user is also a minor, or that if the user… claude-opus-5-5 Claude Developer Platform · in the page release-notes/system-prompts/claude-opus-5-5 …seem safer than it was as written — for example, interpreting amorous language as being merely platonic. As another example, Claude should not assume that the person is also a minor, or that if the pe… claude-sonnet-3-5 Claude Developer Platform · in the page release-notes/system-prompts/claude-sonnet-3-5 …r repeatedly saying things in the same or similar ways. It varies its language just as one would in a conversation. Claude provides thorough responses to more complex and open-ended questions or to a… claude-sonnet-3-7 Claude Developer Platform · in the page release-notes/system-prompts/claude-sonnet-3-7 …entences or a short paragraph, it does. If Claude can write a natural language list of a few comma separated items instead of a numbered or bullet-pointed list, it does so. Claude tries to stay focuse… claude-sonnet-4 Claude Developer Platform · in the page release-notes/system-prompts/claude-sonnet-4 …essive bolded text anywhere. Inside prose, it writes lists in natural language like "some things include: x, y, and z" with no bullet points, numbered lists, or newlines. Claude should give concise r… claude-sonnet-4-5 Claude Developer Platform · in the page release-notes/system-prompts/claude-sonnet-4-5 …ve bolded text anywhere. Inside prose, Claude writes lists in natural language like "some things include: x, y, and z" with no bullet points, numbered lists, or newlines. Claude also never uses bulle… claude-sonnet-4-6 Claude Developer Platform · in the page release-notes/system-prompts/claude-sonnet-4-6 …seem safer than it was as written — for example, interpreting amorous language as being merely platonic. As another example, Claude should not assume that the user is also a minor, or that if the user… claude-sonnet-5 Claude Developer Platform · in the page release-notes/system-prompts/claude-sonnet-5 …seem safer than it was as written — for example, interpreting amorous language as being merely platonic. As another example, Claude should not assume that the person is also a minor, or that if the pe… claude-sonnet-5-5 Claude Developer Platform · in the page release-notes/system-prompts/claude-sonnet-5-5 …aid self-sexualization. - Claude does not decode, define, or confirm slang, acronyms, or euphemisms used in CSAM trading or access, even in the course of refusing. Knowing which terms are in use is it… develop-tests Claude Developer Platform · in the page test-and-evaluate/develop-tests …s the model's output style match expectations? How appropriate is its language for the target audience? </Accordion> <Accordion title="Privacy preservation"> What is a successful metric for h… handle-streaming-refusals Claude Developer Platform · in the page test-and-evaluate/strengthen-guardrails/handle-streaming-refusals …cation: <CodeGroup exclude="shell:cURL, shell:CLI"> <CodeGroupItem language="cURL"> Detecting a refusal in the stream and resetting the conversation needs more logic than a single shell command… mitigate-jailbreaks Claude Developer Platform · in the page test-and-evaluate/strengthen-guardrails/mitigate-jailbreaks …reate a generalized validation screen by providing known jailbreaking language as examples. * **Prompt engineering:** Craft system prompts that emphasize ethical and legal boundaries, and that explic… reduce-hallucinations Claude Developer Platform · in the page test-and-evaluate/strengthen-guardrails/reduce-hallucinations …tes, and verifying claims with citations. --- Even the most advanced language models, such as Claude, can sometimes generate text that is factually incorrect or inconsistent with the given context. T… Configure your agent Claude Code CLI · in the page agent-sdk/configuration …ngs`**: loads a settings file path or an inline JSON string in either language, and TypeScript also accepts a settings object. Whichever form you pass overrides user, project, and local filesystem set… Give Claude custom tools Claude Code CLI · in the page agent-sdk/custom-tools …it. * **Input schema:** the arguments the tool accepts, declared per language: * **TypeScript**: a [Zod schema](https://zod.dev/). The handler's `args` take their types from it. Call `.describe()`… Rewind file changes with checkpointing Claude Code CLI · in the page agent-sdk/file-checkpointing …g](#implement-checkpointing) shows the resume-and-rewind call in both languages, at the comment marked Step 3. ## Next steps * **[Sessions](/docs/en/agent-sdk/sessions.md)**: learn how to resume ses… Hosting the Agent SDK Claude Code CLI · in the page agent-sdk/hosting …hnologies). ### Runtime dependencies The container needs your SDK's language runtime: * Python 3.10+ for the Python SDK, or Node.js 18+ for the TypeScript SDK * Both the TypeScript and Python SDKs… Connect to external tools with MCP Claude Code CLI · in the page agent-sdk/mcp …/claude-agent-sdk"; for await (const message of query({ // Natural language query - Claude writes the SQL prompt: "How many users signed up last week? Break it down by day.", options: { mcp… Agent SDK overview Claude Code CLI · in the page agent-sdk/overview …verview) | Direct access to the Claude API from any of the client SDK languages. You write the tool loop yourself, or let the client SDK's beta [tool runner](https://platform.claude.com/docs/en/agents… Agent SDK reference - Python Claude Code CLI · in the page agent-sdk/python …ired | Description | | :- | :- | :- | | `description` | Yes | Natural language description of when to use this agent | | `prompt` | Yes | The agent's system prompt | | `tools` | No | Array of allowed… Quickstart Claude Code CLI · in the page agent-sdk/quickstart …ault. **2. Install the SDK** Install the Agent SDK package for your language: **TypeScript (new project)** ```bash theme={null} npm init -y npm pkg set type=module npm install @anthropic-ai/claude… Securely deploying AI agents Claude Code CLI · in the page agent-sdk/secure-deployment …for LLM Applications](https://owasp.org/www-project-top-10-for-large-language-model-applications/) * [Docker Security Best Practices](https://docs.docker.com/engine/security/) * [gVisor Documentation… Persist sessions to external storage Claude Code CLI · in the page agent-sdk/session-storage …with files from your real config directory. What it copies differs by language: * **TypeScript**: credentials, `.claude.json`, and your user `settings.json`. From `settings.json` it strips the keys t… Subagents in the SDK Claude Code CLI · in the page agent-sdk/subagents …on | | :- | :- | :- | :- | | `description` | `string` | Yes | Natural language description of when to use this agent | | `prompt` | `string` | Yes | The agent's system prompt defining its role and beh… Troubleshoot the Agent SDK Claude Code CLI · in the page agent-sdk/troubleshooting …your application was using it. Which error you see depends on the SDK language and on whether the CLI reported an error result before it exited. ### ProcessError: Command failed with exit code The P… Agent SDK reference - TypeScript Claude Code CLI · in the page agent-sdk/typescript …ired | Description | | :- | :- | :- | | `description` | Yes | Natural language description of when to use this agent | | `tools` | No | Array of allowed tool names. If omitted, inherits every [tool av… TypeScript SDK V2 session API (removed) Claude Code CLI · in the page agent-sdk/typescript-v2-preview …ints the text response. It uses [`await using`](https://www.typescriptlang.org/docs/handbook/release-notes/typescript-5-2.html#using-declarations-and-explicit-resource-management) (TypeScript 5.2+) to… Orchestrate teams of Claude Code sessions Claude Code CLI · in the page agent-teams …agent teams, describe the task and the teammates you want in natural language. Claude spawns them and coordinates work based on your prompt. This example works well because the three roles are indep… Share session output as artifacts Claude Code CLI · in the page artifacts …ask, name the feature or describe the visual output you want in plain language. A good candidate is anything easier to see than to read as text, such as an annotated diff, a chart, or a set of options… Configure auto mode Claude Code CLI · in the page auto-mode-config …ose, not regex or tool patterns. The classifier reads them as natural-language rules. Write them the way you would describe your infrastructure to a new engineer. A thorough environment section covers… Best practices for Claude Code Claude Code CLI · in the page best-practices …l teams and for engineers using Claude Code across various codebases, languages, and environments. For how the agentic loop works, see [How Claude Code works](/docs/en/how-claude-code-works.md). ***… Claude Code changelog Claude Code CLI · in the page changelog …om those commands now show in English even when git is set to another language * Improved the error when a hooks module is nested too deep to load: it now names the file instead of showing a bare stac… Scan your codebase for vulnerabilities Claude Code CLI · in the page claude-security …o the command, such as `/claude-security scan my branch`, or in plain language, such as "scan commit abc1234". The plugin works best in [auto mode](/docs/en/permission-modes.md), which lets the scan's… claude-tag Claude Code CLI · in the page claude-tag <!DOCTYPE html><html lang="en" class="inter_1d81deff-module__CYM0aG__variable papermono_89c757f2-module__6aS5zq__variable dark" data-banner-state="visible" data-assistant-state="closed" data-page-mode… Configure cloud environments Claude Code CLI · in the page cloud-environments …`pypi.org`, `files.pythonhosted.org`, `index.crates.io`, and `proxy.golang.org` * **Setup script requests**: Claude Code connects to the agent proxy when it launches, after the [setup script](#setup-s… Code Review Claude Code CLI · in the page code-review …art `/code-review` on its own. Ask it to review your changes in plain language and it can run the skill without you typing the command, and a [scheduled task](/docs/en/scheduled-tasks) with `/code-rev…