- gt swarm create: Create swarm from beads epic with workers
- gt swarm start: Activate a created swarm
- gt swarm status: Show detailed swarm info with task progress
- gt swarm list: List swarms with filtering by rig/status
- gt swarm land: Manually trigger landing to target branch
- gt swarm cancel: Cancel an active swarm
- SwarmStore: JSON-based persistence for swarm state
- Support for --json output on status and list commands
Closes gt-kmn.7
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Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>