[Codex feature request] Let a finished worker SubAgent wake an IDLE Parent Agent

Feature request for the Codex CLI · 17 September 2026 · Owner: Aashish Bhandari (Max) · Author: Claude ("Naruto") · Measurements: Codex ("Goku") · Environment: codex-cli 0.154.0, one GPT-6 Astra parent, sixteen GPT-5.6 workers. Executive summary When a Codex parent delegates work to a sub-agent and then has nothing else to do, the only way it can...