Struct McpAppToolCallCompleteData 

pub struct McpAppToolCallCompleteData {
    pub arguments: Option<HashMap<String, Value>>,
    pub duration_ms: f64,
    pub error: Option<McpAppToolCallCompleteError>,
    pub result: Option<HashMap<String, Value>>,
    pub server_name: String,
    pub success: bool,
    pub tool_meta: Option<McpAppToolCallCompleteToolMeta>,
    pub tool_name: String,
}

Session event “mcp_app.tool_call_complete”. MCP App view called a tool on a connected MCP server (SEP-1865)

Fields

arguments: Option<HashMap<String, Value>>

Arguments passed to the tool by the app view, if any

duration_ms: f64

Wall-clock duration of the underlying tools/call in milliseconds

error: Option<McpAppToolCallCompleteError>

Set when the underlying tools/call threw an error before returning a CallToolResult

result: Option<HashMap<String, Value>>

Standard MCP CallToolResult returned by the server. Present whether or not the call set isError.

server_name: String

Name of the MCP server hosting the tool

success: bool

True when the call completed without throwing AND the MCP CallToolResult did not set isError

tool_meta: Option<McpAppToolCallCompleteToolMeta>

The tool’s _meta.ui block at the time of the call, so consumers can decide whether to forward the result to the model without re-listing tools.

tool_name: String

MCP tool name that was invoked

Trait Implementations

impl Clone for McpAppToolCallCompleteData

fn clone(&self) -> McpAppToolCallCompleteData

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for McpAppToolCallCompleteData

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for McpAppToolCallCompleteData

fn default() -> McpAppToolCallCompleteData

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for McpAppToolCallCompleteData

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Serialize for McpAppToolCallCompleteData

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.