Evidence record / codex

A dated record of one change, kept so the writing that cites it can be checked. Compiled from the sources listed below by the research run, not written for reading. The judgment lives in the issues that cite it, below.

2026-10-24-codex-subagent-environments-and-idle-wakes-gain-separate-opt-in-controls

Subagent environments and idle wakes gain separate opt-in controls. subagent_thread_environments inherits configured bindings rather than temporary turn attachments and preserves them across eviction. Separately, wake_on_agent_messages can start a new turn in a completed root session; interrupted sessions, Plan mode, and children are excluded. Both flags default off. MessageLifecycleContributor captures publication state and notifies consumption before sampling.

Channel: tagged-release. Half: capability. Date: 2026-10-23.

Operator consequence: Test environment inheritance and post-completion mail as separate contracts before removing reinjection or wake supervisors. Neither opt-in feature establishes recovery from every stalled Goal or every dead host process.

Receipt

Finding metadata

Run: 2026-10-24-weekly-digest-2026-10-13_2026-10-24-frontier-v0

Finding ID: 2026-10-24-codex-subagent-environments-and-idle-wakes-gain-separate-opt-in-controls

Source links

Primary links, including exact changelog lines when available.

Versioned source: run artifact