Claude Code v2.0.43

Added permissionMode field for custom agents

Added tool_use_id field to PreToolUseHookInput and PostToolUseHookInput types

Added skills frontmatter field to declare skills to auto-load for subagents

Added the SubagentStart hook event

Fixed nested CLAUDE.md files not loading when @-mentioning files

Fixed duplicate rendering of some messages in the UI

Fixed some visual flickers

Fixed NotebookEdit tool inserting cells at incorrect positions when cell IDs matched the pattern cell-N