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HomeDocsClaude Code CLI 15 Aug 2026
One change · claude-code

Agent SDK reference - Python changedagent-sdk/python

Nearest release: v2.1.233, published 20 hours before this site recorded the change. Shown because the two are within 24 hours of each other. Nothing here says the release caused the edit.

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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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793793| Property | Type | Default | Description |
794794| :---------------------------- | :------------------------------------------------------------------------------------ | :--------------------------------- | :--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
795795| `tools` | `list[str] \| ToolsPreset \| None` | `None` | Tools configuration. Use `{"type": "preset", "preset": "claude_code"}` for Claude Code's default tools |
796| `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](/docs/en/agent-sdk/permissions#allow-and-deny-rules) |
796| `allowed_tools` | `list[str]` | `[]` | Tools to auto-approve without prompting. This does not restrict Claude to only these tools. If you name one of the [task-tracking tools](/docs/en/agent-sdk/todo-tracking#model-availability) here, Claude Code also opts the session in. Other unlisted tools fall through to `permission_mode` and `can_use_tool`. Use `disallowed_tools` to block tools. See [Permissions](/docs/en/agent-sdk/permissions#allow-and-deny-rules) |
797797| `system_prompt` | `str \| SystemPromptPreset \| SystemPromptFile \| None` | `None` | System prompt configuration. Pass a string for a custom prompt, `{"type": "preset", "preset": "claude_code"}` for Claude Code's system prompt with optional `"append"`, or `{"type": "file", "path": "..."}` to load a large prompt from disk. See [`SystemPromptPreset`](#systempromptpreset) and [`SystemPromptFile`](#systempromptfile) |
798798| `mcp_servers` | `dict[str, McpServerConfig] \| str \| Path` | `{}` | MCP server configurations or path to config file |
799799| `strict_mcp_config` | `bool` | `False` | When `True`, use only the servers passed in `mcp_servers` and ignore project `.mcp.json`, user settings, plugin-provided MCP servers, and [claude.ai connectors](/docs/en/mcp#use-mcp-servers-from-claude-ai). Maps to the CLI `--strict-mcp-config` flag |
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