A server tool invocation (and its result) that the provider executed on its own infrastructure. The shape mirrors ToolCall but flattens name/arguments since there is no client handler.
Optional
Provider-specific metadata needed to faithfully reconstruct the server tool blocks on replay.
A server tool invocation (and its result) that the provider executed on its own infrastructure. The shape mirrors ToolCall but flattens name/arguments since there is no client handler.