- gt stop --all: Kill all sessions across all rigs - gt stop --rig <name>: Kill sessions in specific rig - gt stop --graceful: Try graceful shutdown before force kill - Captures session output before stopping - Reports success/failure summary Closes gt-u1j.22 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>