Custom subagent types used as agent-team teammates in tmux pane mode only
receive their definition's restricted tools list — the coordination tools
are not injected (confirmed on Claude Code 2.1.148). Without SendMessage a
teammate can't message the lead and can't return a shutdown_response, so it
orphans its pane.
Add SendMessage, TaskList, TaskUpdate, and TaskGet to all 21 agents so they
work as full teammates. TaskCreate is intentionally omitted: task creation
stays centralized with the team lead.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>