diff --git a/src/services/deepseek.ts b/src/services/deepseek.ts
index 6ac3b95..a178ff0 100644
--- a/src/services/deepseek.ts
+++ b/src/services/deepseek.ts
@@ -154,10 +154,24 @@ NSFW RULES:
 `
     : "";
 
+  // OOC rules (same for all stories)
+  const oocRules = `
+=== OOC (OUT OF CHARACTER) MODE ===
+When player's message starts with [OOC: ...], they are speaking DIRECTLY to you as the AI.
+In OOC mode:
+— Break character completely
+— Respond as a helpful AI assistant, not as the narrator
+— Answer questions about the story, characters, mechanics
+— Accept instructions to change story direction, tone, pacing
+— Can discuss plot ideas, suggest alternatives, clarify rules
+— After OOC response, do NOT continue the narrative until player sends a normal message
+`;
+
   // If there are custom rules - use them
   if (story.narrativeRules && story.narrativeRules.trim()) {
     return `${story.narrativeRules}
 ${nsfwBlock}
+${oocRules}
 === METADATA ===
 LANGUAGE: ${story.language}
 GENRE: ${story.genre.join(", ")}
@@ -215,6 +229,7 @@ WRONG: "Я ему не доверяю," пробормотала она.
 RIGHT: **"Я ему не доверяю,"** пробормотала она.
 
 Descriptions and narration — plain text without any asterisks.
+${oocRules}
 Respond in language: ${story.language}
 
 === PLAYER CHARACTER ===