Claude Code Cheat Sheet — Complete ReferenceCLAUDE_CODE_NO_FLICKER=1 alt-screen rendering (v2.1.88) PermissionDenied hook event (v2.1.88) Named subagents in @ mention typeahead (v2.1.88) Thinking summaries off by default (showThinkingSummaries) (v2.1.88) PowerShell tool for Windows (opt-in preview) (v2.1.84) Conditional if field for hooks (permission rule syntax) (v2.1.85)
