diff --git a/rust/crates/rusty-claude-cli/src/main.rs b/rust/crates/rusty-claude-cli/src/main.rs
index 90c0e776..08a1db03 100644
--- a/rust/crates/rusty-claude-cli/src/main.rs
+++ b/rust/crates/rusty-claude-cli/src/main.rs
@@ -4220,17 +4220,31 @@ fn run_resume_command(
             let cwd = env::current_dir()?;
             let payload = plugins_command_payload_for(&cwd, action.as_deref(), target.as_deref())?;
             let action_str = action.as_deref().unwrap_or("list");
-            let json = serde_json::json!({
+            let enabled_count = payload
+                .plugins
+                .iter()
+                .filter(|p| p.get("enabled").and_then(|v| v.as_bool()).unwrap_or(false))
+                .count();
+            let disabled_count = payload.plugins.len().saturating_sub(enabled_count);
+            let mut json = serde_json::json!({
                 "kind": "plugin",
                 "action": action_str,
-                "target": target,
                 "status": payload.status,
+                "summary": {
+                    "total": payload.plugins.len(),
+                    "enabled": enabled_count,
+                    "disabled": disabled_count,
+                    "load_failures": payload.load_failures.len(),
+                },
                 "config_load_error": payload.config_load_error,
-                "message": &payload.message,
-                "reload_runtime": payload.reload_runtime,
                 "plugins": payload.plugins,
                 "load_failures": payload.load_failures,
             });
+            if action_str != "list" {
+                json["target"] = serde_json::json!(target);
+                json["reload_runtime"] = serde_json::json!(payload.reload_runtime);
+                json["message"] = serde_json::json!(&payload.message);
+            }
             Ok(ResumeCommandOutcome {
                 session: session.clone(),
                 message: Some(payload.message),
@@ -5936,20 +5950,36 @@ impl LiveCli {
         let payload = plugins_command_payload_for(&cwd, action, target)?;
         match output_format {
             CliOutputFormat::Text => println!("{}", payload.message),
-            CliOutputFormat::Json => println!(
-                "{}",
-                serde_json::to_string_pretty(&json!({
+            CliOutputFormat::Json => {
+                let action_str = action.unwrap_or("list");
+                let enabled_count = payload
+                    .plugins
+                    .iter()
+                    .filter(|p| p.get("enabled").and_then(|v| v.as_bool()).unwrap_or(false))
+                    .count();
+                let disabled_count = payload.plugins.len().saturating_sub(enabled_count);
+                let mut obj = json!({
                     "kind": "plugin",
-                    "action": action.unwrap_or("list"),
-                    "target": target,
+                    "action": action_str,
                     "status": payload.status,
+                    "summary": {
+                        "total": payload.plugins.len(),
+                        "enabled": enabled_count,
+                        "disabled": disabled_count,
+                        "load_failures": payload.load_failures.len(),
+                    },
                     "config_load_error": payload.config_load_error,
-                    "message": payload.message,
-                    "reload_runtime": payload.reload_runtime,
                     "plugins": payload.plugins,
                     "load_failures": payload.load_failures,
-                }))?
-            ),
+                });
+                // Only include operation-result fields for mutating actions
+                if action_str != "list" {
+                    obj["target"] = json!(target);
+                    obj["reload_runtime"] = json!(payload.reload_runtime);
+                    obj["message"] = json!(payload.message);
+                }
+                println!("{}", serde_json::to_string_pretty(&obj)?);
+            }
         }
         Ok(())
     }
diff --git a/rust/crates/rusty-claude-cli/tests/output_format_contract.rs b/rust/crates/rusty-claude-cli/tests/output_format_contract.rs
index b8148a0e..ad7cd706 100644
--- a/rust/crates/rusty-claude-cli/tests/output_format_contract.rs
+++ b/rust/crates/rusty-claude-cli/tests/output_format_contract.rs
@@ -202,13 +202,31 @@ fn inventory_commands_emit_structured_json_when_requested() {
     assert_eq!(plugins["action"], "list");
     assert_eq!(plugins["status"], "ok");
     assert!(plugins["config_load_error"].is_null());
+    // reload_runtime and target are operation-result fields; list response omits them (#703)
     assert!(
-        plugins["reload_runtime"].is_boolean(),
-        "plugins reload_runtime should be a boolean"
+        !plugins
+            .as_object()
+            .map_or(false, |o| o.contains_key("reload_runtime")),
+        "plugins list should not include reload_runtime"
     );
     assert!(
-        plugins["target"].is_null(),
-        "plugins target should be null when no plugin is targeted"
+        !plugins
+            .as_object()
+            .map_or(false, |o| o.contains_key("target")),
+        "plugins list should not include target"
+    );
+    // #703: structured summary replaces prose message
+    assert!(
+        plugins["summary"]["total"].is_number(),
+        "plugins list should have summary.total"
+    );
+    assert!(
+        plugins["summary"]["enabled"].is_number(),
+        "plugins list should have summary.enabled"
+    );
+    assert!(
+        plugins["summary"]["disabled"].is_number(),
+        "plugins list should have summary.disabled"
     );
     assert_eq!(plugins["status"], "ok");
     let plugin_entries = plugins["plugins"].as_array().expect("plugins array");
@@ -691,13 +709,22 @@ fn resumed_inventory_commands_emit_structured_json_when_requested() {
     assert_eq!(plugins["action"], "list");
     assert_eq!(plugins["status"], "ok");
     assert!(plugins["config_load_error"].is_null());
+    // reload_runtime and target are operation-result fields; list response omits them (#703)
     assert!(
-        plugins["reload_runtime"].is_boolean(),
-        "plugins reload_runtime should be a boolean"
+        !plugins
+            .as_object()
+            .map_or(false, |o| o.contains_key("reload_runtime")),
+        "plugins list should not include reload_runtime"
     );
     assert!(
-        plugins["target"].is_null(),
-        "plugins target should be null when no plugin is targeted"
+        !plugins
+            .as_object()
+            .map_or(false, |o| o.contains_key("target")),
+        "plugins list should not include target"
+    );
+    assert!(
+        plugins["summary"]["total"].is_number(),
+        "plugins list should have summary.total"
     );
 }