fix: correct numeric types in progress notifications (#361)

* fix: correct numeric types in progress notifications

The standard specifies that these may be floating-point.

* fix: regenerate schemas

Author: jamadeo

crates/rmcp/src/model.rs

@@ -758,10 +758,10 @@ const_string!(ProgressNotificationMethod = "notifications/progress");
 pub struct ProgressNotificationParam {
     pub progress_token: ProgressToken,
     /// The progress thus far. This should increase every time progress is made, even if the total is unknown.
-    pub progress: u32,
+    pub progress: f64,
     /// Total number of items to process (or total progress required), if known
     #[serde(skip_serializing_if = "Option::is_none")]
-    pub total: Option<u32>,
+    pub total: Option<f64>,
     /// An optional message describing the current progress.
     #[serde(skip_serializing_if = "Option::is_none")]
     pub message: Option<String>,

crates/rmcp/tests/test_message_schema/client_json_rpc_message_schema.json

@@ -762,21 +762,19 @@
         },
         "progress": {
           "description": "The progress thus far. This should increase every time progress is made, even if the total is unknown.",
-          "type": "integer",
-          "format": "uint32",
-          "minimum": 0
+          "type": "number",
+          "format": "double"
         },
         "progressToken": {
           "$ref": "#/definitions/ProgressToken"
         },
         "total": {
           "description": "Total number of items to process (or total progress required), if known",
           "type": [
-            "integer",
+            "number",
             "null"
           ],
-          "format": "uint32",
-          "minimum": 0
+          "format": "double"
         }
       },
       "required": [

crates/rmcp/tests/test_message_schema/server_json_rpc_message_schema.json

@@ -1027,21 +1027,19 @@
         },
         "progress": {
           "description": "The progress thus far. This should increase every time progress is made, even if the total is unknown.",
-          "type": "integer",
-          "format": "uint32",
-          "minimum": 0
+          "type": "number",
+          "format": "double"
         },
         "progressToken": {
           "$ref": "#/definitions/ProgressToken"
         },
         "total": {
           "description": "Total number of items to process (or total progress required), if known",
           "type": [
-            "integer",
+            "number",
             "null"
           ],
-          "format": "uint32",
-          "minimum": 0
+          "format": "double"
         }
       },
       "required": [

crates/rmcp/tests/test_message_schema/server_json_rpc_message_schema_current.json

@@ -1027,21 +1027,19 @@
         },
         "progress": {
           "description": "The progress thus far. This should increase every time progress is made, even if the total is unknown.",
-          "type": "integer",
-          "format": "uint32",
-          "minimum": 0
+          "type": "number",
+          "format": "double"
         },
         "progressToken": {
           "$ref": "#/definitions/ProgressToken"
         },
         "total": {
           "description": "Total number of items to process (or total progress required), if known",
           "type": [
-            "integer",
+            "number",
             "null"
           ],
-          "format": "uint32",
-          "minimum": 0
+          "format": "double"
         }
       },
       "required": [

crates/rmcp/tests/test_progress_subscriber.rs

@@ -69,8 +69,8 @@ impl MyServer {
             let _ = client
                 .notify_progress(ProgressNotificationParam {
                     progress_token: progress_token.clone(),
-                    progress: step,
-                    total: Some(10),
+                    progress: (step as f64),
+                    total: Some(10.0),
                     message: Some("Some message".into()),
                 })
                 .await;