diff --git a/specification/draft/apps.mdx b/specification/draft/apps.mdx
index e7c343b8..ecf11f26 100644
--- a/specification/draft/apps.mdx
+++ b/specification/draft/apps.mdx
@@ -491,7 +491,7 @@ If the Host is a web page, it MUST wrap the View and communicate with it through
 
 1. The Host and the Sandbox MUST have different origins.
 2. The Sandbox MUST have the following permissions: `allow-scripts`, `allow-same-origin`.
-3. The Sandbox SHOULD send a `ui/notifications/sandbox-proxy-ready` notification to the host when it's ready to process an `ui/notifications/sandbox-resource-ready` notification.
+3. The Sandbox SHOULD send a `ui/notifications/sandbox-proxy-ready` notification to the host when it's ready to process a `ui/notifications/sandbox-resource-ready` notification.
 4. Once the Sandbox is ready, the Host SHOULD send the raw HTML resource to load in a `ui/notifications/sandbox-resource-ready` notification.
 5. The Sandbox MUST load the raw HTML of the View with CSP settings that:
    - Enforce the domains declared in `ui.csp` metadata
@@ -548,7 +548,7 @@ interface McpUiAppCapabilities {
 
 ### Host Context in `McpUiInitializeResult`
 
-When the View sends an `ui/initialize` request to the Host, the Host SHOULD include UI-specific context in the `McpUiInitializeResult`'s `hostContext` field:
+When the View sends a `ui/initialize` request to the Host, the Host SHOULD include UI-specific context in the `McpUiInitializeResult`'s `hostContext` field:
 
 ```typescript
 interface HostContext {
@@ -1241,19 +1241,19 @@ View behavior (optional):
 
 Host MUST send this notification when tool execution completes (if the View is displayed during tool execution).
 
-`ui/notifications/tool-cancelled` - Tool execution was cancelled
+`ui/notifications/tool-canceled` - Tool execution was canceled
 
 ```typescript
 {
   jsonrpc: "2.0",
-  method: "ui/notifications/tool-cancelled",
+  method: "ui/notifications/tool-canceled",
   params: {
     reason: string
   }
 }
 ```
 
-Host MUST send this notification if the tool execution was cancelled, for any reason (which can optionally be specified), including user action, sampling error, classifier intervention, etc.
+Host MUST send this notification if the tool execution was canceled, for any reason (which can optionally be specified), including user action, sampling error, classifier intervention, etc.
 
 `ui/resource-teardown` - Host notifies View before teardown
 
@@ -1404,8 +1404,8 @@ sequenceDiagram
   end
   alt Tool complete
     H -->> UI: ui/notifications/tool-result
-  else Tool cancelled
-    H -->> UI: ui/notifications/tool-cancelled
+  else Tool canceled
+    H -->> UI: ui/notifications/tool-canceled
   end
 ```