GPT Orchestration

Use the installed GPT Engineer core when available; load its dynamic-workflow reference only for nontrivial scheduling. This is an orchestration entry point, not another routing policy or a reason to load every engineer wrapper. A Skills CLI installation does not resolve dependencies or register agents and hooks.

Preserve the selected parent. GPT-6 Astra is parent/orchestrator-only and must never be a child. GPT-6.1 Sol and GPT-6 Luna are the only GPT Engineer child routes. Same-model delegation is the default under 6.1 Sol/Luna parents. An Astra, retired GPT-6 Sol, or existing GPT-5.6 parent requires an explicit mixed-model GPT-6.1 Sol or GPT-6 Luna child. Preserve the selected parent. Never infer execution from profiles or model self-description. If the core or native delegation is absent, explain the limitation and perform suitable work directly; do not switch models or install a framework automatically. Claude native routing stays provider-specific.