feat(task): add task support (SEP-1686) (#536)

Signed-off-by: jokemanfire <hu.dingyang@zte.com.cn>

examples/clients/src/collection.rs

@@ -49,6 +49,7 @@ async fn main() -> Result<()> {
             .call_tool(CallToolRequestParam {
                 name: "git_status".into(),
                 arguments: serde_json::json!({ "repo_path": "." }).as_object().cloned(),
+                task: None,
             })
             .await?;
     }

examples/clients/src/everything_stdio.rs

@@ -40,6 +40,7 @@ async fn main() -> Result<()> {
         .call_tool(CallToolRequestParam {
             name: "echo".into(),
             arguments: Some(object!({ "message": "hi from rmcp" })),
+            task: None,
         })
         .await?;
     tracing::info!("Tool result for echo: {tool_result:#?}");
@@ -49,6 +50,7 @@ async fn main() -> Result<()> {
         .call_tool(CallToolRequestParam {
             name: "longRunningOperation".into(),
             arguments: Some(object!({ "duration": 3, "steps": 1 })),
+            task: None,
         })
         .await?;
     tracing::info!("Tool result for longRunningOperation: {tool_result:#?}");

examples/clients/src/git_stdio.rs

@@ -42,6 +42,7 @@ async fn main() -> Result<(), RmcpError> {
         .call_tool(CallToolRequestParam {
             name: "git_status".into(),
             arguments: serde_json::json!({ "repo_path": "." }).as_object().cloned(),
+            task: None,
         })
         .await?;
     tracing::info!("Tool result: {tool_result:#?}");

examples/clients/src/progress_client.rs

@@ -184,6 +184,7 @@ async fn test_stdio_transport(records: u32) -> Result<()> {
         .call_tool(CallToolRequestParam {
             name: "stream_processor".into(),
             arguments: None,
+            task: None,
         })
         .await?;
 
@@ -238,6 +239,7 @@ async fn test_http_transport(http_url: &str, records: u32) -> Result<()> {
         .call_tool(CallToolRequestParam {
             name: "stream_processor".into(),
             arguments: None,
+            task: None,
         })
         .await?;
 

examples/clients/src/sampling_stdio.rs

@@ -106,6 +106,7 @@ async fn main() -> Result<()> {
                     arguments: Some(object!({
                         "question": "Hello world"
                     })),
+                    task: None,
                 })
                 .await
             {

examples/clients/src/streamable_http.rs

@@ -44,6 +44,7 @@ async fn main() -> Result<()> {
         .call_tool(CallToolRequestParam {
             name: "increment".into(),
             arguments: serde_json::json!({}).as_object().cloned(),
+            task: None,
         })
         .await?;
     tracing::info!("Tool result: {tool_result:#?}");