anthropics/claude-agent-sdk-python v0.1.46

on GitHub

New Features

• Session history functions: Added list_sessions() and get_session_messages() top-level functions for retrieving past session data (#622)
• MCP control methods: Added add_mcp_server(), remove_mcp_server(), and typed McpServerStatus for runtime MCP server management (#620)
• Typed task messages: Added TaskStarted, TaskProgress, and TaskNotification message subclasses for better type safety when handling task-related events (#621)
• ResultMessage stop_reason: Added stop_reason field to ResultMessage for inspecting why a conversation turn ended (#619)
• Hook input enhancements: Added agent_id and agent_type fields to tool-lifecycle hook inputs (PreToolUseHookInput, PostToolUseHookInput, PostToolUseFailureHookInput) (#628)

Bug Fixes

• String prompt MCP initialization: Fixed an issue where passing a string prompt would close stdin before MCP server initialization completed, causing MCP servers to fail to register (#630)

Internal/Other Changes

• Updated bundled Claude CLI to version 2.1.69

PyPI: https://pypi.org/project/claude-agent-sdk/0.1.46/

pip install claude-agent-sdk==0.1.46