diff --git a/.qwenignore b/.qwenignore
index 22fb128..322e2e2 100644
--- a/.qwenignore
+++ b/.qwenignore
@@ -1 +1,2 @@
-!node_modules
\ No newline at end of file
+!node_modules
+!debug
\ No newline at end of file
diff --git a/QWEN.md b/QWEN.md
index 797d208..ceeda0d 100644
--- a/QWEN.md
+++ b/QWEN.md
@@ -99,14 +99,20 @@ async function start(game: IGameContext<GameState>) {
 }
 ```
 
-需要等待玩家交互时，使用`await game.prompt(schema, validator, player)`。
+需要等待玩家交互时，使用`await game.prompt(promptDef, validator, player)`。
 
 ```typescript
+import {createPromptDef} from "boardgame-core";
+
+export const prompts = {
+    play: createPromptDef<[PlayerType, number, number]>('play <player> <row:number> <col:number>'),
+}
+
 async function turn(game: IGameContext<GameState>, currentPlayer: PlayerType) {
     const {player, row, col} = await game.prompt(
-        'play <player:string> <row:number> <col:number>',
+        prompts.play,
         (player, row, col) => {
-            if(player !== currentPlayer)
+            if (player !== currentPlayer)
                 throw `Wrong player!`
             return {player, row, col};
         }
@@ -138,7 +144,8 @@ export class GameHost<TState extends Record<string, unknown>, TResult=unknown> {
     readonly activePromptPlayer: ReadonlySignal<string | null>;
 
     // 玩家响应activePrompt的输入，若报错则返回string，否则返回null
-    onInput(input: string): string | null {}
+    // promptDef应当从game module中导出
+    tryAnswerPrompt<TArgs extends any[]>(promptDef: Promptdef<TArgs>,...args: TArgs): string | null {}
     
     // 添加中断，context.produceAsync会等待所有中断结束之后再继续
     addInterruption(promise: Promise<void>): void {}
diff --git a/packages/boop-game/src/game/commands.ts b/packages/boop-game/src/game/commands.ts
index 15750f0..aaccb69 100644
--- a/packages/boop-game/src/game/commands.ts
+++ b/packages/boop-game/src/game/commands.ts
@@ -7,7 +7,7 @@
     WinnerType,
     WIN_LENGTH,
     MAX_PIECES_PER_PLAYER,
-    BoopGame,
+    BoopGame, prompts,
 } from "./data";
 import {createGameCommandRegistry, Command, moveToRegion} from "boardgame-core";
 import {
@@ -184,8 +184,8 @@ async function handleCheckFullBoard(game: BoopGame, turnPlayer: PlayerType){
     }
     
     const partId = await game.prompt(
-        'play <player> <row:number> <col:number> [type:string]',
-        (player: PlayerType, row: number, col: number, type?: PieceType) => {
+        prompts.graduate,
+        (player, row, col) => {
             if (player !== turnPlayer) {
                 throw `无效的玩家: ${player}，期望的是 ${turnPlayer}。`;
             }
@@ -213,8 +213,8 @@ const checkFullBoard = registry.register('check-full-board', handleCheckFullBoar
 
 async function handleTurn(game: BoopGame, turnPlayer: PlayerType) {
     const {row, col, type} = await game.prompt(
-        'play <player> <row:number> <col:number> [type:string]',
-        (player: PlayerType, row: number, col: number, type?: PieceType) => {
+        prompts.play,
+        (player, row, col, type?) => {
             const pieceType = type === 'cat' ? 'cat' : 'kitten';
 
             if (player !== turnPlayer) {
@@ -246,13 +246,4 @@ async function handleTurn(game: BoopGame, turnPlayer: PlayerType) {
     await handleCheckFullBoard(game, turnPlayer);
     return { winner: null };
 }
-const turn = registry.register('turn <player>', handleTurn);
-
-export const prompts = {
-    play: (player: PlayerType, row: number, col: number, type?: PieceType) => {
-        if (type) {
-            return `play ${player} ${row} ${col} ${type}`;
-        }
-        return `play ${player} ${row} ${col}`;
-    },
-};
\ No newline at end of file
+const turn = registry.register('turn <player>', handleTurn);
\ No newline at end of file
diff --git a/packages/boop-game/src/game/data.ts b/packages/boop-game/src/game/data.ts
index a957e28..737e971 100644
--- a/packages/boop-game/src/game/data.ts
+++ b/packages/boop-game/src/game/data.ts
@@ -1,5 +1,5 @@
 import parts from './parts.csv';
-import {createRegion, moveToRegion, Region} from "boardgame-core";
+import {createRegion, moveToRegion, Region, createPromptDef} from "boardgame-core";
 import {createPartsFromTable} from "boardgame-core";
 import {Part} from "boardgame-core";
 import {IGameContext} from "boardgame-core";
@@ -14,6 +14,10 @@ export type WinnerType = PlayerType | 'draw' | null;
 export type RegionType = 'white' | 'black' | 'board' | '';
 export type BoopPartMeta = { player: PlayerType; type: PieceType };
 export type BoopPart = Part<BoopPartMeta>;
+export const prompts = {
+    play: createPromptDef<[PlayerType, number, number, PieceType?]>('play <player> <row:number> <col:number> [type:string]'),
+    graduate: createPromptDef<[PlayerType, number, number]>('graduate <player> <row:number> <col:number>'),
+}
 
 export function createInitialState() {
     const pieces = createPartsFromTable(
diff --git a/packages/boop-game/src/scenes/GameScene.ts b/packages/boop-game/src/scenes/GameScene.ts
index c0fc3f9..341a292 100644
--- a/packages/boop-game/src/scenes/GameScene.ts
+++ b/packages/boop-game/src/scenes/GameScene.ts
@@ -73,8 +73,7 @@ export class GameScene extends GameHostScene<BoopState> {
 
   private handleCellClick(row: number, col: number): void {
     const selectedType = this.pieceTypeSelector.getSelectedType();
-    const cmd = prompts.play(this.state.currentPlayer, row, col, selectedType);
-    const error = this.gameHost.onInput(cmd);
+    const error = this.gameHost.tryAnswerPrompt(prompts.play, this.state.currentPlayer, row, col, selectedType);
     if (error) {
       this.errorOverlay.show(error);
     }
@@ -82,8 +81,7 @@ export class GameScene extends GameHostScene<BoopState> {
 
   private handlePieceClick(row: number, col: number): void {
     // 棋盘满时，点击棋子触发升级
-    const cmd = prompts.play(this.state.currentPlayer, row, col);
-    const error = this.gameHost.onInput(cmd);
+    const error = this.gameHost.tryAnswerPrompt(prompts.graduate, this.state.currentPlayer, row, col);
     if (error) {
       this.errorOverlay.show(error);
     }
diff --git a/packages/sample-game/src/game/tic-tac-toe.ts b/packages/sample-game/src/game/tic-tac-toe.ts
index f0a289d..b7a4bb2 100644
--- a/packages/sample-game/src/game/tic-tac-toe.ts
+++ b/packages/sample-game/src/game/tic-tac-toe.ts
@@ -1,6 +1,7 @@
 import {
     createGameCommandRegistry, Part, createRegion,
-    IGameContext, createRegionAxis, GameModule
+    IGameContext, createRegionAxis, GameModule,
+    createPromptDef
 } from 'boardgame-core';
 
 const BOARD_SIZE = 3;
@@ -21,6 +22,9 @@ export type WinnerType = PlayerType | 'draw' | null;
 export type TicTacToePart = Part<{ player: PlayerType }>;
 export type TicTacToeState = ReturnType<typeof createInitialState>;
 export type TicTacToeGame = IGameContext<TicTacToeState>;
+export const prompts = {
+    play: createPromptDef<[PlayerType, number, number]>('play <player> <row:number> <col:number>'),
+}
 
 export function createInitialState() {
     return {
@@ -57,8 +61,8 @@ export async function start(game: TicTacToeGame) {
 
 async function handleTurn(game: TicTacToeGame, turnPlayer: PlayerType, turnNumber: number) {
     const {player, row, col} = await game.prompt(
-        'play <player> <row:number> <col:number>',
-        (player: PlayerType, row: number, col: number) => {
+        prompts.play,
+        (player, row, col) => {
             if (player !== turnPlayer) {
                 throw `Invalid player: ${player}. Expected ${turnPlayer}.`;
             } else if (!isValidMove(row, col)) {
@@ -130,10 +134,4 @@ export const gameModule: GameModule<TicTacToeState> = {
     registry,
     createInitialState,
     start
-};
-
-export const prompts = {
-    play: (player: PlayerType, row: number, col: number) => {
-        return `play ${player} ${row} ${col}`;
-    },
 };
\ No newline at end of file
diff --git a/packages/sample-game/src/scenes/GameScene.ts b/packages/sample-game/src/scenes/GameScene.ts
index a1f2020..39cb614 100644
--- a/packages/sample-game/src/scenes/GameScene.ts
+++ b/packages/sample-game/src/scenes/GameScene.ts
@@ -61,8 +61,7 @@ export class GameScene extends GameHostScene<TicTacToeState> {
           if (this.state.winner) return;
           if (this.isCellOccupied(row, col)) return;
 
-          const cmd = prompts.play(this.state.currentPlayer, row, col);
-          const error = this.gameHost.onInput(cmd);
+          const error = this.gameHost.tryAnswerPrompt(prompts.play, this.state.currentPlayer, row, col);
           if (error) {
             console.warn('Invalid move:', error);
           }