ExperimentalThe plan ID to update.
The list of tasks to be accomplished.
When updating an item-based plan, the agent must send a complete list of all entries with their current status. The client replaces that plan with each update.
Optional_The _meta property is reserved by ACP to allow clients and agents to attach additional metadata to their interactions. Implementations MUST NOT make assumptions about values at these keys.
See protocol docs: Extensibility
A plan represented as structured entries.