diff --git a/docker-compose.yml b/docker-compose.yml
index 8a03ed9..40925c6 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -26,6 +26,15 @@ services:
     volumes:
       - ./data:/data/db
 
+  swagger:
+    image: swaggerapi/swagger-editor:latest
+    ports:
+      - 8080:8080
+    volumes:
+      - ./server/swagger.yaml:/tmp/swagger.yaml
+    environment:
+      - SWAGGER_FILE=/tmp/swagger.yaml
+
 networks:
   internal:
   players:
diff --git a/server/quests/helloworld/game.yml b/server/quests/helloworld/game.yml
index d7f6f47..e7dd507 100644
--- a/server/quests/helloworld/game.yml
+++ b/server/quests/helloworld/game.yml
@@ -1,6 +1,6 @@
 title: Hello, Linux World!
 order: 1
-introduction: |
+instruction: |
   你身在一個漆黑的房間裡，沒有任何的光線或聲音。你想不起來為什麼自己會來到這裡。但你的腦中隱約感到某個聲音跟你說：
 
   「輸入 echo Hello World!」
@@ -17,7 +17,7 @@ stages:
       - 首先，你必須要學會如何使用指令。
       - 一個指令是由一個指令名稱和一些參數所組成的，而指令名稱和參數之間是以空白字元分隔。
       - 例如，你可以輸入 `ls` 來查看目前的目錄下有哪些檔案。
-    hint:
+    hints:
       - 使用 `ls` 指令來查看目前的目錄下有哪些檔案。
     next: ls
   - id: ls
diff --git a/server/src/api/controllers/commandController.js b/server/src/api/controllers/commandController.js
index d4deabe..add1214 100644
--- a/server/src/api/controllers/commandController.js
+++ b/server/src/api/controllers/commandController.js
@@ -6,7 +6,7 @@ import commandHandler from '../../game/commandHandler.js'
 
 export async function newCommand(req, res) {
   console.log('new command:', req.body)
-  const { token, command, pwd, exit_code, output } = req.body
+  const { token, command, pwd, output, error } = req.body
 
   if (!command) {
     res.status(400).json({ message: 'command is required' })
@@ -33,8 +33,8 @@ export async function newCommand(req, res) {
     session,
     command,
     pwd,
-    exit_code,
     output,
+    error,
   })
 
   await c.save()
diff --git a/server/src/api/controllers/questController.js b/server/src/api/controllers/questController.js
index a9ca070..059490e 100644
--- a/server/src/api/controllers/questController.js
+++ b/server/src/api/controllers/questController.js
@@ -3,9 +3,8 @@ import Quest from '../../models/quest.js'
 export async function getQuests(req, res) {
   const quests = await Quest.find({}).sort({ order: 1 })
   res.json(
-    quests.map(({ name, title, order, _id }) => ({
+    quests.map(({ title, order, _id }) => ({
       _id,
-      name,
       title,
       order,
     }))
@@ -19,5 +18,6 @@ export async function getQuestDetail(req, res) {
     res.status(404).json({ message: 'Quest not found.' })
     return
   }
-  res.json(quest)
+  const { _id, title, order, instruction } = quest
+  res.json({ _id, title, order, instruction })
 }
diff --git a/server/src/game/commandHandler.js b/server/src/game/commandHandler.js
index c5d2c5b..ca99dff 100644
--- a/server/src/game/commandHandler.js
+++ b/server/src/game/commandHandler.js
@@ -28,6 +28,7 @@ const commandHandler = async (session, commandInput) => {
   if (!commandMatch || !outputMatch || !errorMatch) return {}
 
   session.completion.push(session.progress)
+  session.hints.push(...stage.hints)
 
   const nextStage = quest.stages.find((s) => s.id === stage.next)
   session.progress = nextStage.id
@@ -35,7 +36,6 @@ const commandHandler = async (session, commandInput) => {
 
   return {
     responses: stage.responses,
-    hint: stage.hint,
   }
 }
 
diff --git a/server/src/models/quest.js b/server/src/models/quest.js
index 7c68866..2b46935 100644
--- a/server/src/models/quest.js
+++ b/server/src/models/quest.js
@@ -23,7 +23,7 @@ const stageSchema = new Schema({
     type: [String],
     required: true,
   },
-  hint: {
+  hints: {
     type: [String],
     required: true,
   },
@@ -39,7 +39,7 @@ const Quest = model(
     _id: String,
     title: String,
     order: Number,
-    introduction: String,
+    instruction: String,
     stages: [stageSchema],
   })
 )
diff --git a/server/src/models/session.js b/server/src/models/session.js
index c1b813e..5ae0865 100644
--- a/server/src/models/session.js
+++ b/server/src/models/session.js
@@ -16,6 +16,7 @@ const Session = model(
       finishedAt: Date,
       progress: String,
       completion: [String],
+      hints: [String],
     },
     { timestamps: true }
   )
diff --git a/server/swagger.yaml b/server/swagger.yaml
index 2527225..5532b60 100644
--- a/server/swagger.yaml
+++ b/server/swagger.yaml
@@ -1,6 +1,8 @@
 openapi: 3.0.0
 servers:
   - url: /api/v1
+  - url: https://odyssey.wancat.cc/api/v1
+  - url: http://localhost:3000/api/v1
 info:
   description: Linux Odyssey API
   version: '1.0.0'
@@ -304,6 +306,10 @@ paths:
       responses:
         '201':
           description: Command recorded successfully
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/CommandResponse'
         '400':
           description: Invalid request body
         '401':
@@ -333,10 +339,9 @@ components:
         title:
           type: string
           example: Hello World
-        content:
+        instruction:
           type: string
-          format: html
-          example: '<h1>Hello World</h1>'
+          example: 'In this quest, you need to learn how to use `ls` to list the file.'
         order:
           type: number
 
@@ -372,20 +377,21 @@ components:
         finished_at:
           type: string
           format: date-time
-        terminals:
-          type: array
-          items:
-            type: string
-        graphs:
-          $ref: '#/components/schemas/TreeNode'
-        progress:
-          type: array
-          items:
-            $ref: '#/components/schemas/Progress'
         hints:
           type: array
           items:
-            $ref: '#/components/schemas/Hint'
+            type: string
+            example: '`ls -al` to list detail information of all files.'
+        progress:
+          type: string
+          description: current stage id
+          example: helloworld
+        completion:
+          type: array
+          description: list of completed stage ids
+          items:
+            type: string
+            example: helloworld
 
     SessionSummary:
       type: object
@@ -418,28 +424,6 @@ components:
           items:
             $ref: '#/components/schemas/TreeNode'
 
-    Progress:
-      type: object
-      properties:
-        name:
-          type: string
-        finished_at:
-          type: string
-          format: date-time
-        skipped_at:
-          type: string
-          format: date-time
-
-    Hint:
-      type: object
-      properties:
-        name:
-          type: string
-        content:
-          type: string
-        source:
-          type: string
-
     Command:
       type: object
       required:
@@ -461,6 +445,18 @@ components:
         output:
           type: string
           description: The output of the command
+        error:
+          type: string
+          description: The error message of the command
+
+    CommandResponse:
+      type: object
+      properties:
+        responses:
+          type: array
+          items:
+            type: string
+            example: 'You have completed the quest!'
 
   securitySchemes:
     BearerAuth: