/swarm [N] <task> is a high-fanout overlay on the current mode (Agent/Plan/YOLO),
NOT a fourth mode. It mirrors the proven /agent command pattern: it emits a
model instruction to decompose the task, fan out one headless sub-agent per
subtask via agent_open (role/agent_type per subtask, max_depth N for nesting),
run them concurrently, and synthesize from each worker's result SUMMARY (not its
transcript) — the isolation pattern that keeps the orchestrator light.
Registered with aliases fanout/qun; CmdSwarmDescription was already localized in
all locales. Validated by the command-registry completeness tests (unique
names/aliases, complete metadata); broad commands suite 431/0.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Hunter B
30992aa0e3