fix: Disable the MCP safety warning in noninteractive use cases (aws#1833)

* diasble warining in non-interactive way

* add test

* fmt

Author: evanliu048

crates/chat-cli/src/cli/chat/mcp.rs

@@ -60,7 +60,7 @@ pub async fn add_mcp_server(ctx: &Context, output: &mut SharedWriter, args: McpA
 
     if config.mcp_servers.contains_key(&args.name) && !args.force {
         bail!(
-            "MCP server '{}' already exists in {} (scope {}). Use --force to overwrite.",
+            "\nMCP server '{}' already exists in {} (scope {}). Use --force to overwrite.",
             args.name,
             config_path.display(),
             scope
@@ -74,11 +74,16 @@ pub async fn add_mcp_server(ctx: &Context, output: &mut SharedWriter, args: McpA
         "timeout": args.timeout.unwrap_or(default_timeout()),
     }))?;
 
+    writeln!(
+        output,
+        "\nTo learn more about MCP safety, see https://docs.aws.amazon.com/amazonq/latest/qdeveloper-ug/command-line-mcp-security.html\n\n"
+    )?;
+
     config.mcp_servers.insert(args.name.clone(), tool);
     config.save_to_file(ctx, &config_path).await?;
     writeln!(
         output,
-        "✓ Added MCP server '{}' to {}",
+        "✓ Added MCP server '{}' to {}\n",
         args.name,
         scope_display(&scope, &args.profile)
     )?;
@@ -100,15 +105,15 @@ pub async fn remove_mcp_server(ctx: &Context, output: &mut SharedWriter, args: M
             config.save_to_file(ctx, &config_path).await?;
             writeln!(
                 output,
-                "✓ Removed MCP server '{}' from {}",
+                "\n✓ Removed MCP server '{}' from {}\n",
                 args.name,
                 scope_display(&scope, &args.profile)
             )?;
         },
         None => {
             writeln!(
                 output,
-                "No MCP server named '{}' found in {}",
+                "\nNo MCP server named '{}' found in {}\n",
                 args.name,
                 scope_display(&scope, &args.profile)
             )?;
@@ -154,7 +159,7 @@ pub async fn import_mcp_server(ctx: &Context, output: &mut SharedWriter, args: M
     for (name, cfg) in src_cfg.mcp_servers {
         if dst_cfg.mcp_servers.contains_key(&name) && !args.force {
             bail!(
-                "MCP server '{}' already exists in {} (scope {}). Use --force to overwrite.",
+                "\nMCP server '{}' already exists in {} (scope {}). Use --force to overwrite.\n",
                 name,
                 config_path.display(),
                 scope
@@ -164,10 +169,15 @@ pub async fn import_mcp_server(ctx: &Context, output: &mut SharedWriter, args: M
         added += 1;
     }
 
+    writeln!(
+        output,
+        "\nTo learn more about MCP safety, see https://docs.aws.amazon.com/amazonq/latest/qdeveloper-ug/command-line-mcp-security.html\n\n"
+    )?;
+
     dst_cfg.save_to_file(ctx, &config_path).await?;
     writeln!(
         output,
-        "✓ Imported {added} MCP server(s) into {}",
+        "✓ Imported {added} MCP server(s) into {}\n",
         scope_display(&scope, &args.profile)
     )?;
     Ok(())
@@ -199,7 +209,7 @@ pub async fn get_mcp_server_status(ctx: &Context, output: &mut SharedWriter, nam
     writeln!(output, "\n")?;
 
     if !found {
-        bail!("No MCP server named '{name}' found in any scope/profile");
+        bail!("No MCP server named '{name}' found in any scope/profile\n");
     }
     Ok(())
 }
@@ -297,7 +307,7 @@ async fn ensure_config_file(
             ctx.fs().create_dir_all(parent).await?;
         }
         McpServerConfig::default().save_to_file(ctx, path).await?;
-        writeln!(out, "📁 Created MCP config in '{}'", path.display())?;
+        writeln!(out, "\n📁 Created MCP config in '{}'", path.display())?;
     }
     load_cfg(ctx, path).await
 }

crates/chat-cli/src/cli/chat/mod.rs

@@ -356,12 +356,15 @@ pub async fn chat(
 
     let mcp_server_configs = match McpServerConfig::load_config(&mut output).await {
         Ok(config) => {
-            execute!(
-                output,
-                style::Print(
-                    "To learn more about MCP safety, see https://docs.aws.amazon.com/amazonq/latest/qdeveloper-ug/command-line-mcp-security.html\n\n"
-                )
-            )?;
+            if interactive && !database.settings.get_bool(Setting::McpLoadedBefore).unwrap_or(false) {
+                execute!(
+                    output,
+                    style::Print(
+                        "To learn more about MCP safety, see https://docs.aws.amazon.com/amazonq/latest/qdeveloper-ug/command-line-mcp-security.html\n\n"
+                    )
+                )?;
+            }
+            database.settings.set(Setting::McpLoadedBefore, true).await?;
             config
         },
         Err(e) => {

crates/chat-cli/src/database/settings.rs

@@ -29,6 +29,7 @@ pub enum Setting {
     ApiCodeWhispererService,
     ApiQService,
     McpInitTimeout,
+    McpLoadedBefore,
 }
 
 impl AsRef<str> for Setting {
@@ -46,6 +47,7 @@ impl AsRef<str> for Setting {
             Self::ApiCodeWhispererService => "api.codewhisperer.service",
             Self::ApiQService => "api.q.service",
             Self::McpInitTimeout => "mcp.initTimeout",
+            Self::McpLoadedBefore => "mcp.loadedBefore",
         }
     }
 }
@@ -73,6 +75,7 @@ impl TryFrom<&str> for Setting {
             "api.codewhisperer.service" => Ok(Self::ApiCodeWhispererService),
             "api.q.service" => Ok(Self::ApiQService),
             "mcp.initTimeout" => Ok(Self::McpInitTimeout),
+            "mcp.loadedBefore" => Ok(Self::McpLoadedBefore),
             _ => Err(DatabaseError::InvalidSetting(value.to_string())),
         }
     }
@@ -190,10 +193,12 @@ mod test {
         assert_eq!(settings.get(Setting::TelemetryEnabled), None);
         assert_eq!(settings.get(Setting::OldClientId), None);
         assert_eq!(settings.get(Setting::ShareCodeWhispererContent), None);
+        assert_eq!(settings.get(Setting::McpLoadedBefore), None);
 
         settings.set(Setting::TelemetryEnabled, true).await.unwrap();
         settings.set(Setting::OldClientId, "test").await.unwrap();
         settings.set(Setting::ShareCodeWhispererContent, false).await.unwrap();
+        settings.set(Setting::McpLoadedBefore, true).await.unwrap();
 
         assert_eq!(settings.get(Setting::TelemetryEnabled), Some(&Value::Bool(true)));
         assert_eq!(
@@ -204,13 +209,16 @@ mod test {
             settings.get(Setting::ShareCodeWhispererContent),
             Some(&Value::Bool(false))
         );
+        assert_eq!(settings.get(Setting::McpLoadedBefore), Some(&Value::Bool(true)));
 
         settings.remove(Setting::TelemetryEnabled).await.unwrap();
         settings.remove(Setting::OldClientId).await.unwrap();
         settings.remove(Setting::ShareCodeWhispererContent).await.unwrap();
+        settings.remove(Setting::McpLoadedBefore).await.unwrap();
 
         assert_eq!(settings.get(Setting::TelemetryEnabled), None);
         assert_eq!(settings.get(Setting::OldClientId), None);
         assert_eq!(settings.get(Setting::ShareCodeWhispererContent), None);
+        assert_eq!(settings.get(Setting::McpLoadedBefore), None);
     }
 }