What --sync-env pushes
Always pushed
DASHBOARD_PASSWORDDASHBOARD_SESSION_SECRETDASHBOARD_USERNAMEDATABASE_URLGITHUB_APP_IDGITHUB_APP_INSTALLATION_IDGITHUB_APP_PRIVATE_KEYGITHUB_TARGET_REPOGITHUB_WEBHOOK_SECRET
Plus LLM_PROVIDER, and GITHUB_APP_INSTALLATION_ID once it is set locally (it is optional, so an empty value is not an error).
Every provider's model var
GROQ_MODELLLM_MODELVERTEX_MODEL
All of them, not just the active provider's: a database override can activate any provider with no redeploy, so a provider whose model var was never pushed would read a missing value on the service.
Provider credentials
GCP_SERVICE_ACCOUNT_KEYGEMINI_API_KEYGROQ_API_KEY
The selected provider's is always pushed. Another provider's is pushed only if you happen to have it set locally -- an unselected provider's key is never demanded.
Each credential also has numbered key-rotation slots: additional vars named {credential}_2, {credential}_3, and so on -- the naming scheme is registry.slot_env_name()'s ({base} for slot 0, {base}_{n} for slot n>=1). Any slot that is configured locally is pushed too, for every provider, the same as the base credential above; this reference cannot say how many exist for you, since that would mean reading your local configured values, which this generator never does.
Operational settings
DEFAULT_RETRY_AFTER_SECONDSDISPATCHER_BACKOFF_JITTER_SECONDSDISPATCHER_FAILURE_BASE_BACKOFF_SECONDSDISPATCHER_FAILURE_MAX_BACKOFF_SECONDSDISPATCHER_IDLE_SLEEP_SECONDSDISPATCHER_MAX_FAILURE_ATTEMPTSDISPATCHER_MAX_NOTICE_POST_ATTEMPTSDISPATCHER_MIN_RETRY_AFTER_SECONDSDISPATCHER_NOTICE_SWEEP_BATCH_SIZEGCP_LOCATIONGCP_PROJECTLLM_REQUEST_TIMEOUT_SECONDS
Never pushed: database-only settings
DISPATCHER_REREVIEW_COOLDOWN_FACTORDISPATCHER_REREVIEW_COOLDOWN_MAX_SECONDSDISPATCHER_REREVIEW_COOLDOWN_SECONDSKEY_USAGE_RESET_TIME_UTCKEY_USAGE_TOKEN_CAPREVIEW_DRAFT_PRS
These live only in the runtime_config table, never as a Render env var, because the dispatcher must be able to change them with no redeploy. uv run python -m bot.scripts.deploy --sync-config-db pushes them there. Editing one and redeploying does nothing on its own.
Never pushed: operator-machine settings
PUBLIC_BASE_URLRENDER_SERVICE_NAME
These configure your local tooling, not the service. Setting them on Render would create dead env vars.