We need to produce a 2-3 sentence plain-text summary, objective, factual, no marketing language, no superlatives, no calls to action. Must be at most 60 words. Must be plain text, no markdown, no bullet points, no headings. Must not wrap in quotes. Must be only the summary text. We need to explain what the skill does, what problem it solves, when to use it. We have description: "Project Session Manager - isolated dev environments with git worktrees and tmux". So the skill is an alias for /project-session-manager, which manages isolated dev environments using git worktrees and tmux sessions.