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The new Podcast script, audio, speech and video workflow does not currently publish dedicated completion Webhooks. Use task polling to detect completion and retrieve outputs.

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Existing subscription management

The API exposes the account’s existing list, create, update and delete subscription operations. Webhook events returns the event list supported by that service. These subscriptions are account-wide. They are not isolated to the Space selected for an API key or OAuth authorization. Changes affect the account’s existing subscriptions, and responses can contain subscription secrets. Handle them accordingly when granting a client access. Existing event producers, signatures and delivery retries retain their existing behavior. The presence of a generation event in the supported list does not mean the new Podcast workflow triggers it.

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Planned Podcast events

Dedicated success and failure events for script creation, full audio preparation, scene speech and video rendering are under design. Their output payloads are not a released contract. Do not build subscriptions against guessed event names or assume a delivery/replay guarantee until these events are implemented and documented here.