Implements DS-1..DS-13 from spec/dispatch-skill.md. Reads
.agent-tasks.json, validates structure, submits tasks to the control
plane in dependency-ordered waves, and records cp_task_ids atomically
after each submission. Supports --wait-wave, --continue-on-failure, and
--as-manifest flags.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
