diff --git a/defaults/xdg/stasis/stasis.rune b/defaults/xdg/stasis/stasis.rune
new file mode 100644
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--- /dev/null
+++ b/defaults/xdg/stasis/stasis.rune
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+# Stasis idle manager configuration for Moonarch
+# Manages screen dimming, DPMS, lock, and suspend timers
+
+@author "Moonarch"
+@description "Idle management for Moonarch (Niri + moonlock)"
+
+default:
+  # Media playback inhibits idle (non-browser only, browser uses D-Bus inhibit)
+  monitor_media true
+  ignore_remote_media true
+
+  # App/process inhibit patterns (apps that don't use D-Bus idle-inhibit)
+  inhibit_apps [
+    "vlc"
+    "mpv"
+    "celluloid"
+    r"steam_app_.*"
+    "gamescope"
+    "virt-manager"
+    "qemu"
+    "obs"
+    "kdenlive"
+    "handbrake"
+    "blender"
+  ]
+
+  # Lid actions (laptop only)
+  lid_close_action "moonlock"
+  lid_open_action  ""
+
+  # AC power plan (relaxed)
+  ac:
+    brightness:
+      timeout 300
+      command "brightnessctl set 50%"
+    end
+
+    dpms:
+      timeout 120
+      command "niri msg action power-off-monitors"
+      resume_command "niri msg action power-on-monitors"
+    end
+
+    lock_screen:
+      timeout 180
+      command "moonlock"
+    end
+
+    suspend:
+      timeout 600
+      command "systemctl suspend"
+    end
+  end
+
+  # Battery plan (aggressive)
+  battery:
+    brightness:
+      timeout 60
+      command "brightnessctl set 30%"
+    end
+
+    dpms:
+      timeout 30
+      command "niri msg action power-off-monitors"
+      resume_command "niri msg action power-on-monitors"
+    end
+
+    lock_screen:
+      timeout 60
+      command "moonlock"
+    end
+
+    suspend:
+      timeout 120
+      command "systemctl suspend"
+    end
+  end
+end