cron/scheduler.py no longer re-exports the split modules (scheduler_delivery /
_script / _prompt / _preflight); it imports only the 19 names it calls itself
(bottom-of-file, E402 kept for the import cycle). Dropped the shim-only
`import shutil` and the F401 note on windows_hide_flags (still used by
scheduler.py). Split modules now call same-module helpers directly, reach
sibling split modules via late-bound module refs (_delivery/_script/_preflight)
next to _sched, and import windows_hide_flags themselves; origin-resident names
(load_config, Path, _SCRIPT_TIMEOUT, heartbeat_run_claim, ...) still go through
_sched. Callers/tests import + patch the defining module.
Persistent Docker containers bind <sandboxes>/docker/<task>/{workspace,home}
where <task> is sanitize_task_id_for_path("session:<session_key>") — but the
gateway's synthetic mounts hardcoded the literal "default" sandbox
(_default_docker_workspace_host_root / _docker_persistent_home_host_root).
For any session-scoped deployment the longest-prefix match missed, the
container path fell through to a host-filesystem resolve that could not
exist, and every MEDIA attachment was silently dropped.
The post-handler delivery pipeline also runs after
_handle_message_with_agent cleared the turn's session contextvars, so even
a correct sandbox derivation consulting ambient state would collapse onto
"default". Thread the delivering session's key explicitly through
validate_media_delivery_path -> _translate_docker_container_media_path ->
the two host-root helpers (same pattern as the TTS fix for #57049/#36685).
Default-sandbox resolution and the /root/.hermes credential exclusion are
preserved; contexts without a key keep the historical behavior.
Follow-up on the salvaged commits from PRs #87965 and #87967
(@AiwendilInTheWoods):
- Promote the media-send timeout to the standard resolution pattern:
HERMES_CRON_MEDIA_SEND_TIMEOUT env var, then
cron.media_send_timeout_seconds in config.yaml, then 300s default
(mirrors script_timeout_seconds; .env stays secrets-only).
- Register the config key in DEFAULT_CONFIG and document both surfaces
(environment-variables reference + cron user guide).
- Fold the empty-str() exception fallback into the error string recorded
in delivery_errors (post-#88631 the reason reaches the run status, not
just the log line).
- Tests: timeout resolution precedence + TimeoutError reason fallback.
Teknium