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HomeDocsClaude Code CLI 17 Oct 2026
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Agent SDK reference - Python changedagent-sdk/python

Nearest release: v2.1.302, published 8 hours before upstream edited the page. Shown because the two are within 24 hours of each other. Nothing here says the release caused the edit.

Upstream edited this page at 17 Oct 2026 01:27 UTC, give or take a minute or two: the time comes from Anthropic’s own sitemap rather than from a commit. This site recorded the change at 17 Oct 2026 01:37 UTC.

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First seen 14 Aug 2026 this site's first read of the page
Recorded edits61to this page, all time

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526526| `receive_response()` | Receive messages until and including a ResultMessage |
527527| `interrupt()` | Send interrupt signal (only works in streaming mode) |
528528| `set_permission_mode(mode)` | Change the permission mode for the current session |
529| `set_model(model)` | Change the model for the current session. Pass `None` to reset to [Claude Code's default model](/docs/en/model-config) |
529| `set_model(model)` | Change the model for the current session. Pass `None` to reset to [Claude Code's default model](/docs/en/model-config). A session in `auto` mode [changes to `default` mode](/docs/en/agent-sdk/permissions#auto-mode-auto) if the new model doesn't support auto mode |
530530| `rewind_files(user_message_id)` | Restore files to their state at the specified user message. Requires `enable_file_checkpointing=True`. See [File checkpointing](/docs/en/agent-sdk/file-checkpointing) |
531531| `get_mcp_status()` | Get the status of all configured MCP servers. Returns [`McpStatusResponse`](#mcpstatusresponse) |
532532| `get_context_usage()` | Get a breakdown of context window usage by category, skill, and tool. The same data `/context` shows in an interactive session. Returns [`ContextUsageResponse`](#contextusageresponse). To compute the breakdown, Claude Code makes several token-counting API requests that don't appear in the message stream; see [how these requests are handled](#contextusageresponse) |
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