What problem does it solve? Managing multiple concurrent Claude or Codex sessions across project directories is tedious and error-prone when done by hand in tmux. This Skill automates creating two-pane tmux windows, launching sessions with tracked session IDs, resuming existing conversations, and switching between personal and enterprise Claude accounts. ## Core Features & Use Cases - Session Spawning: Creates a tmux window in a project directory, splits it into a shell pane and an agent pane, and launches Claude or Codex with a generated session UUID tagged on the window. - Session Discovery & Resume: Lists existing Claude sessions for a project via list-sessions.sh, then resumes a chosen session into a new or existing window. - Account Management: Tracks personal vs. enterprise Claude accounts per window using tmux window options, supports a work-mode default file, and switches accounts in place with switch-account.sh. - Use Case: You ask to open Claude in your RNA-seq analysis project; the Skill lists prior sessions for that directory, creates a named tmux window, launches Claude in the bottom pane, and shows you the captured output. ## Quick Start Ask the assistant to open a new Claude session in a specific project directory, for example by saying to start Claude in /project2/yangili1/bjf79/202503_bo_rnaseq.