diff --git a/shared/src/constants.ts b/shared/src/constants.ts
index aac4bca..ccc2a1f 100644
--- a/shared/src/constants.ts
+++ b/shared/src/constants.ts
@@ -58,3 +58,6 @@ export const PAUSING_DURATION = 15;        // ticks (1.5s)
 export const EMOTING_DURATION = 20;        // ticks (2s)
 export const SOCIAL_GLOBAL_COOLDOWN = 50;  // ticks (5s)
 export const SOCIAL_PAIR_COOLDOWN = 300;   // ticks (30s)
+
+// Camera mode commands
+export const MAX_NPC_COUNT = 50;
diff --git a/shared/src/types.ts b/shared/src/types.ts
index dd32417..47bb7e5 100644
--- a/shared/src/types.ts
+++ b/shared/src/types.ts
@@ -117,4 +117,5 @@ export interface ServerEvents {
 // Client -> Server events
 export interface ClientEvents {
   'player-input': (data: PlayerInput) => void;
+  'spawn-npc': (data: { x: number; y: number }) => void;
 }