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
Optional ExperimentaladditionalUNSTABLE
This capability is not part of the spec yet, and may be removed or changed at any point.
Additional workspace roots to activate for this session. Each path must be absolute.
When omitted or empty, no additional roots are activated. When non-empty, this is the complete resulting additional-root list for the loaded session.
The working directory for this session.
List of MCP servers to connect to for this session.
The ID of the session to load.
Request parameters for loading an existing session.
Only available if the Agent supports the
loadSessioncapability.See protocol docs: Loading Sessions