Manage matter workspaces — new, list, switch, close, or detach (practice-level). File-management logic for keeping one client or engagement's context separate from every other. Use when working across multiple clients or matters, when the user says "new matter", "switch matter", "list matters", "close matter", or when any substantive skill needs to know which matter it's working in.
Install
npx skills add anthropics/claude-for-legal --skill matter-workspacenpx skills add anthropics/claude-for-legal --skill matter-workspace -a claude-code -gnpx skills add anthropics/claude-for-legal --skill matter-workspace -a codex -ggemini skills install https://github.com/anthropics/claude-for-legal.git --path ai-governance-legal/skills/matter-workspacegh skill install anthropics/claude-for-legal matter-workspacegit clone --depth 1 https://github.com/anthropics/claude-for-legal /tmp/anthropics__claude-for-legal
mkdir -p ~/.claude/skills ~/.agents/skills
cp -R /tmp/anthropics__claude-for-legal/ai-governance-legal/skills/matter-workspace ~/.claude/skills/matter-workspace # Claude Code
cp -R /tmp/anthropics__claude-for-legal/ai-governance-legal/skills/matter-workspace ~/.agents/skills/matter-workspace # Codex, Cursor, Gemini CLI, Copilot, OpenCode