740 pages for term.
Titles and paths first, then pages whose text carries it. Each row opens that page as this site last read it.
whats-new-opus-5-5
Claude Developer Platform · in the page
models/opus-5-5/whats-new-opus-5-5
…Opus 5.5. </Card> <Card title="Prompting Claude Opus 5.5" icon="terminal" href="https://platform.claude.com/docs/en/build-with-claude/prompt-engineering/prompting-claude-opus-5-5"> Behaviora…
whats-new-sonnet-5-5
Claude Developer Platform · in the page
models/sonnet-5-5/whats-new-sonnet-5-5
…net 5.5. </Card> <Card title="Prompting Claude Sonnet 5.5" icon="terminal" href="https://platform.claude.com/docs/en/build-with-claude/prompt-engineering/prompting-claude-sonnet-5-5"> Behavio…
overview
Claude Developer Platform · in the page
release-notes/overview
…f the `ant` CLI adds `ant beta:sessions connect`, which attaches your terminal to a Claude Managed Agents session. You can follow the session live, send messages, and allow or deny tool calls that are…
claude-fable-5
Claude Developer Platform · in the page
release-notes/system-prompts/claude-fable-5
…CSAM trading or access, even in the course of refusing. Knowing which terms are in use is itself access-enabling. Claude can say the request touches on child-exploitation material without identifying…
claude-fable-5-1
Claude Developer Platform · in the page
release-notes/system-prompts/claude-fable-5-1
…CSAM trading or access, even in the course of refusing. Knowing which terms are in use is itself access-enabling. Claude can say the request touches on child-exploitation material without identifying…
claude-haiku-3-5
Claude Developer Platform · in the page
release-notes/system-prompts/claude-haiku-3-5
…e, it may hallucinate in response to questions like this. It uses the term 'hallucinate' to describe this since the human will understand what it means. If Claude mentions or cites particular article…
claude-haiku-4-5
Claude Developer Platform · in the page
release-notes/system-prompts/claude-haiku-4-5
…CSAM trading or access, even in the course of refusing. Knowing which terms are in use is itself access-enabling. Claude can say the request touches on child-exploitation material without identifying…
claude-haiku-5-5
Claude Developer Platform · in the page
release-notes/system-prompts/claude-haiku-5-5
…CSAM trading or access, even in the course of refusing. Knowing which terms are in use is itself access-enabling. Claude can say the request touches on child-exploitation material without identifying…
claude-opus-3
Claude Developer Platform · in the page
release-notes/system-prompts/claude-opus-3
…t may hallucinate in response to questions like this, and it uses the term 'hallucinate' to describe this as the user will understand what it means. It doesn't add this caveat if the information in it…
claude-opus-4
Claude Developer Platform · in the page
release-notes/system-prompts/claude-opus-4
…e lets developers delegate coding tasks to Claude directly from their terminal. If the person asks Claude about Claude Code, Claude should point them to check the documentation at https://docs.anthrop…
claude-opus-4-1
Claude Developer Platform · in the page
release-notes/system-prompts/claude-opus-4-1
…e lets developers delegate coding tasks to Claude directly from their terminal. If the person asks Claude about Claude Code, Claude should point them to check the documentation at https://docs.anthrop…
claude-opus-4-5
Claude Developer Platform · in the page
release-notes/system-prompts/claude-opus-4-5
…e lets developers delegate coding tasks to Claude directly from their terminal. Claude is accessible via beta products **Claude in Chrome** - a browsing agent, **Claude in Excel** - a spreadsheet agen…
claude-opus-4-6
Claude Developer Platform · in the page
release-notes/system-prompts/claude-opus-4-6
…e lets developers delegate coding tasks to Claude directly from their terminal. Claude is accessible via beta products Claude in Chrome - a browsing agent, Claude in Excel - a spreadsheet agent, and C…
claude-opus-4-7
Claude Developer Platform · in the page
release-notes/system-prompts/claude-opus-4-7
…llbeing> Claude uses accurate medical or psychological information or terminology where relevant. Claude cares about people's wellbeing and avoids encouraging or facilitating self-destructive behavio…
claude-opus-4-8
Claude Developer Platform · in the page
release-notes/system-prompts/claude-opus-4-8
…CSAM trading or access, even in the course of refusing. Knowing which terms are in use is itself access-enabling. Claude can say the request touches on child-exploitation material without identifying…
claude-opus-5
Claude Developer Platform · in the page
release-notes/system-prompts/claude-opus-5
…CSAM trading or access, even in the course of refusing. Knowing which terms are in use is itself access-enabling. Claude can say the request touches on child-exploitation material without identifying…
claude-opus-5-5
Claude Developer Platform · in the page
release-notes/system-prompts/claude-opus-5-5
…CSAM trading or access, even in the course of refusing. Knowing which terms are in use is itself access-enabling. Claude can say the request touches on child-exploitation material without identifying…
claude-sonnet-3-5
Claude Developer Platform · in the page
release-notes/system-prompts/claude-sonnet-3-5
…e, it may hallucinate in response to questions like this. It uses the term 'hallucinate' to describe this since the human will understand what it means. If Claude mentions or cites particular article…
claude-sonnet-3-7
Claude Developer Platform · in the page
release-notes/system-prompts/claude-sonnet-3-7
…' lets developers delegate coding tasks to Claude directly from their terminal. More information can be found on Anthropic's blog. There are no other Anthropic products. Claude can provide the inform…
claude-sonnet-4
Claude Developer Platform · in the page
release-notes/system-prompts/claude-sonnet-4
…e lets developers delegate coding tasks to Claude directly from their terminal. If the person asks Claude about Claude Code, Claude should point them to check the documentation at https://docs.anthrop…
claude-sonnet-4-5
Claude Developer Platform · in the page
release-notes/system-prompts/claude-sonnet-4-5
…e lets developers delegate coding tasks to Claude directly from their terminal.** Claude is accessible via **beta products Claude in Chrome - a browsing agent, Claude in Excel - a spreadsheet agent, a…
claude-sonnet-4-6
Claude Developer Platform · in the page
release-notes/system-prompts/claude-sonnet-4-6
…llbeing> Claude uses accurate medical or psychological information or terminology where relevant. Claude cares about people's wellbeing and avoids encouraging or facilitating self-destructive behavio…
claude-sonnet-5
Claude Developer Platform · in the page
release-notes/system-prompts/claude-sonnet-5
…CSAM trading or access, even in the course of refusing. Knowing which terms are in use is itself access-enabling. Claude can say the request touches on child-exploitation material without identifying…
claude-sonnet-5-5
Claude Developer Platform · in the page
release-notes/system-prompts/claude-sonnet-5-5
…CSAM trading or access, even in the course of refusing. Knowing which terms are in use is itself access-enabling. Claude can say the request touches on child-exploitation material without identifying…
develop-tests
Claude Developer Platform · in the page
test-and-evaluate/develop-tests
…ry classification"> **What it measures:** Binary classification determines if an input belongs to one of two classes. Here, it's used to classify whether a response contains PHI. This method can a…
mitigate-jailbreaks
Claude Developer Platform · in the page
test-and-evaluate/strengthen-guardrails/mitigate-jailbreaks
…your guardrails, particularly against uses that violate Anthropic's [Terms of Service](https://www.anthropic.com/legal/commercial-terms) or [Usage Policy](https://www.anthropic.com/legal/aup). These…
reduce-latency
Claude Developer Platform · in the page
test-and-evaluate/strengthen-guardrails/reduce-latency
…asure latency When discussing latency, you might come across several terms and measurements: * **Baseline latency:** This is the time taken by the model to process the prompt and generate the respon…
Use Claude Code with a screen reader
Claude Code CLI · in the page
accessibility
…hemes. Claude Code has a screen reader mode that replaces its visual terminal interface with plain, linear text. Instead of boxes, progress animations, and in-place redraws, Claude Code prints labele…
Set up Claude Code for your organization
Claude Code CLI · in the page
admin-setup
…de-a-session-starts-in) | Choose the permission mode your developers' terminal sessions start in instead of the built-in starting permission mode, or remove auto mode. [Switch permission modes](/docs/…
Escalate hard decisions with the advisor tool
Claude Code CLI · in the page
advisor
…ong, multi-step tasks where most turns are routine but plan quality determines the outcome. Examples include large refactors, debugging sessions where an error keeps recurring, and tasks you want inde…
How the agent loop works
Claude Code CLI · in the page
agent-sdk/agent-loop
…2. **Evaluate and respond.** Claude evaluates the current state and determines how to proceed. It may respond with text, request one or more tool calls, or both. The SDK yields one or more [`Assistant…
Use Claude Code features in the SDK
Claude Code CLI · in the page
agent-sdk/claude-code-features
…is equivalent to `["user", "project", "local"]`. The `cwd` option determines where the SDK looks for project-level inputs. Project `settings.json` and hooks load only from `<cwd>/.claude/` with no p…
Configure your agent
Claude Code CLI · in the page
agent-sdk/configuration
…ession with that `cwd`. Claude Code reads the working directory to determine: * **Project settings and hooks**: which project's [settings and hooks load](/docs/en/agent-sdk/claude-code-features.md)…
Give Claude custom tools
Claude Code CLI · in the page
agent-sdk/custom-tools
…ple) in one file, `weather.py` or `weather.ts`, then run it from your terminal: **TypeScript** ```bash theme={null} npx tsx weather.ts ``` **Python (uv)** ```bash theme={null} uv run weather.py ``…
Rewind file changes with checkpointing
Claude Code CLI · in the page
agent-sdk/file-checkpointing
…o their original state. To store multiple checkpoints and rewind to intermediate states, see [Multiple restore points](#multiple-restore-points). Capturing the session ID (`message.session_id`) is op…
Intercept and control agent behavior with hooks
Claude Code CLI · in the page
agent-sdk/hooks
…nitialize logging and telemetry | | `SessionEnd` | No | Yes | Session termination | Clean up temporary resources | | `Notification` | Yes | Yes | Agent status messages | Send agent status updates to S…
Hosting the Agent SDK
Claude Code CLI · in the page
agent-sdk/hosting
…returns. Example workloads include a personal project manager with intermittent check-ins, deep research that pauses and resumes over hours, and a customer support agent that loads ticket history acr…
Modifying system prompts
Claude Code CLI · in the page
agent-sdk/modifying-system-prompts
…f the following: * **Different surface**: the output isn't read in a terminal by the person who triggered it. Chat UIs, structured-output consumers, and non-coding automation each need a prompt that…
Agent SDK overview
Claude Code CLI · in the page
agent-sdk/overview
…and hooks. | | Do interactive development or run one-off tasks from a terminal | [**Claude Code CLI**](/docs/en/overview.md) | The terminal interface, built for daily interactive use. | | Call the Cla…
Agent SDK reference - Python
Claude Code CLI · in the page
agent-sdk/python
…ce(message, ResultMessage): print(f"Interrupted task: terminal_reason={message.terminal_reason!r}") # terminal_reason is "aborted_streaming" or "aborted_tools"…
Quickstart
Claude Code CLI · in the page
agent-sdk/quickstart
…ays follow PEP 8 style guidelines." } }; ``` **Run commands in the terminal:** ```python Python theme={null} options = ClaudeAgentOptions( allowed_tools=["Read", "Edit", "Glob", "Bash"], permi…
Securely deploying AI agents
Claude Code CLI · in the page
agent-sdk/secure-deployment
…rvices on your behalf. Unlike traditional software that follows predetermined code paths, these tools generate their actions dynamically based on context and goals. This flexibility is what makes the…
Extend agents with skills
Claude Code CLI · in the page
agent-sdk/skills
…commands You can dispatch commands that work without an interactive terminal through the SDK. The `system/init` message lists the ones available in your session in its `slash_commands` field. Comman…
Subagents in the SDK
Claude Code CLI · in the page
agent-sdk/subagents
…(/docs/en/sub-agents.md#fork-the-current-conversation). Either way, intermediate tool calls and results stay inside the subagent; only its final message returns to the parent. A `research-assistant` s…
Troubleshoot the Agent SDK
Claude Code CLI · in the page
agent-sdk/troubleshooting
…ry options. A process killed by a signal reports `Claude Code process terminated by signal <name>` in the same form. ### Claude Code returned an error result Both SDKs replace the process-exit error…
Agent SDK reference - TypeScript
Claude Code CLI · in the page
agent-sdk/typescript
…p 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 [se…
Handle approvals and user input
Claude Code CLI · in the page
agent-sdk/user-input
…attempts each operation, the callback prints the tool request to the terminal and prompts for y/n approval. ```python Python theme={null} import asyncio from claude_agent_sdk import ClaudeAgentOpti…
Orchestrate teams of Claude Code sessions
Claude Code CLI · in the page
agent-teams
…instead, ask again and explicitly request an agent team. The lead's terminal lists teammates in the agent panel below the prompt input. From the panel: * **Up and down arrows**: select a teammate *…
Manage multiple agents with agent view
Claude Code CLI · in the page
agent-view
…ssion is a full Claude Code conversation that keeps running without a terminal attached, so you can open it, reply, and leave whenever you want. ![Agent view in a terminal. A line at the top counts t…
Claude Code on Amazon Bedrock
Claude Code CLI · in the page
amazon-bedrock
…cs.aws.amazon.com/bedrock/latest/userguide/api-keys.html): * **Short-term keys**: last up to 12 hours. AWS prefers them over long-term keys for production environments. * **Long-term keys**: last unt…