diff --git a/apps/stage-tamagotchi/src/main/services/airi/plugins/index.ts b/apps/stage-tamagotchi/src/main/services/airi/plugins/index.ts
index 39b37fd5d..8b8bc7399 100644
--- a/apps/stage-tamagotchi/src/main/services/airi/plugins/index.ts
+++ b/apps/stage-tamagotchi/src/main/services/airi/plugins/index.ts
@@ -39,13 +39,13 @@ interface CapabilityAwarePluginHost extends PluginHost {
   setProvidersListResolver: (resolver: () => Promise<Array<{ name: string }>> | Array<{ name: string }>) => void
   announceCapability: (key: string, metadata?: Record<string, unknown>) => {
     key: string
-    state: 'announced' | 'ready'
+    state: 'announced' | 'ready' | 'degraded' | 'withdrawn'
     metadata?: Record<string, unknown>
     updatedAt: number
   }
   markCapabilityReady: (key: string, metadata?: Record<string, unknown>) => {
     key: string
-    state: 'announced' | 'ready'
+    state: 'announced' | 'ready' | 'degraded' | 'withdrawn'
     metadata?: Record<string, unknown>
     updatedAt: number
   }
diff --git a/apps/stage-tamagotchi/src/shared/eventa.ts b/apps/stage-tamagotchi/src/shared/eventa.ts
index 84f7c8daa..c3787602a 100644
--- a/apps/stage-tamagotchi/src/shared/eventa.ts
+++ b/apps/stage-tamagotchi/src/shared/eventa.ts
@@ -96,15 +96,18 @@ export interface PluginRegistrySnapshot {
   plugins: PluginManifestSummary[]
 }
 
+// TODO: Replace these manually duplicated IPC types with re-exports from
+// @proj-airi/plugin-sdk (CapabilityDescriptor) once stage-ui and the shared
+// eventa layer can depend on the SDK without introducing unwanted coupling.
 export interface PluginCapabilityPayload {
   key: string
-  state: 'announced' | 'ready'
+  state: 'announced' | 'ready' | 'degraded' | 'withdrawn'
   metadata?: Record<string, unknown>
 }
 
 export interface PluginCapabilityState {
   key: string
-  state: 'announced' | 'ready'
+  state: 'announced' | 'ready' | 'degraded' | 'withdrawn'
   metadata?: Record<string, unknown>
   updatedAt: number
 }
diff --git a/packages/stage-ui/src/stores/devtools/plugin-host-debug.ts b/packages/stage-ui/src/stores/devtools/plugin-host-debug.ts
index b6d353e81..603f84b95 100644
--- a/packages/stage-ui/src/stores/devtools/plugin-host-debug.ts
+++ b/packages/stage-ui/src/stores/devtools/plugin-host-debug.ts
@@ -15,9 +15,11 @@ export interface PluginRegistrySnapshot {
   plugins: PluginManifestSummary[]
 }
 
+// TODO: Replace with re-export of CapabilityDescriptor from
+// @proj-airi/plugin-sdk once stage-ui can depend on the SDK.
 export interface PluginCapabilityState {
   key: string
-  state: 'announced' | 'ready'
+  state: 'announced' | 'ready' | 'degraded' | 'withdrawn'
   metadata?: Record<string, unknown>
   updatedAt: number
 }