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## What changed - Add the top-level `thread_unload_delay_secs` configuration key for the app-server, with a 60-second default instead of the previous 30-minute fixed delay. - Allow zero-delay unloading and reject values that cannot fit in a monotonic-clock deadline. - Reset the unload countdown when a thread gains a subscriber or becomes active, and preserve active turns even when the configured delay is zero. - Document that unloading ephemeral threads discards their in-memory state. ## Testing - Cover configuration parsing, defaults, overrides, and overflow rejection. - Cover unsubscribe, resubscribe, delayed and immediate unloading, notifications, persisted-thread resume, and WebSocket disconnect behavior. GitOrigin-RevId: edd46f6b49bbdafbf606bff74378e8f569e95977
ThreadManager Sample
Small one-shot binary that starts a Codex thread with ThreadManager from
codex-core-api, submits a single user turn, and prints the final assistant
message.
cargo run -p codex-thread-manager-sample -- "Say hello"
Use --model to override the configured default model:
cargo run -p codex-thread-manager-sample -- --model gpt-5.2 "Say hello"
The prompt can also be piped through stdin:
printf 'Say hello\n' | cargo run -p codex-thread-manager-sample