When Parallel IS Allowed

Parallel execution is permitted only when:

1. Tasks have no shared files or dependencies
2. Tasks operate in different workspaces
3. Tasks are assigned to different profiles with non-overlapping tool access
4. The orchestrator explicitly documents the parallel plan in the parent task

Coordination via Comments

When tasks must coordinate:

1. First worker writes findings to task comments
2. Second worker reads comments before starting
3. Use kanban_comment(task_id, body) for durable notes
4. Never rely on ephemeral session context

Task Lifecycle