Codex Task to Spec

Turn one bounded task into the same four-file spec identity, commit only that cluster locally, and stop only on adversarial PASS plus readiness READY. Read references/outcome-lock.md and references/transport-envelope.md whole before starting.

This package defines ephemeral runtime subagents. It does not install persistent agents on the computer.

Fixed runtime

Use exactly these host-selected roles. Every child uses fork_turns: none.