diff --git a/src/constants.js b/src/constants.js
index f53a1f1..e096438 100644
--- a/src/constants.js
+++ b/src/constants.js
@@ -3,30 +3,139 @@
  * 统一管理命令格式、路径等配置信息
  */
 
-// 命令前缀配置 - 约定大于配置
-export const COMMAND_PREFIX = 'npx dpml-prompt@snapshot'
+const PromptXConfig = require('./lib/utils/promptxConfig')
 
-// 常用命令模板
-export const COMMANDS = {
-  INIT: `${COMMAND_PREFIX} init`,
-  HELLO: `${COMMAND_PREFIX} hello`,
-  ACTION: `${COMMAND_PREFIX} action`,
-  LEARN: `${COMMAND_PREFIX} learn`,
-  RECALL: `${COMMAND_PREFIX} recall`,
-  REMEMBER: `${COMMAND_PREFIX} remember`,
-  HELP: `${COMMAND_PREFIX} help`
+// 缓存配置实例和命令前缀
+let _config = null
+let _cachedPrefix = null
+
+/**
+ * 获取配置实例
+ */
+function getConfig() {
+  if (!_config) {
+    _config = new PromptXConfig()
+  }
+  return _config
+}
+
+/**
+ * 动态检测命令前缀
+ * 优先级：环境变量 > 配置文件 > npm环境变量检测 > 默认值
+ */
+function detectCommandPrefix() {
+  // 返回缓存的结果
+  if (_cachedPrefix) {
+    return _cachedPrefix
+  }
+
+  // 1. 环境变量优先（用于测试和自定义）
+  if (process.env.DPML_COMMAND_PREFIX) {
+    _cachedPrefix = process.env.DPML_COMMAND_PREFIX
+    return _cachedPrefix
+  }
+
+  // 2. 尝试读取配置文件（同步方式，避免异步复杂性）
+  try {
+    const config = getConfig()
+    const configPath = config.getPath('command-prefix')
+    const fs = require('fs')
+    if (fs.existsSync(configPath)) {
+      _cachedPrefix = fs.readFileSync(configPath, 'utf8').trim()
+      if (_cachedPrefix) {
+        return _cachedPrefix
+      }
+    }
+  } catch (error) {
+    // 忽略读取错误，继续下一步检测
+  }
+
+  // 3. npm环境变量检测
+  if (process.env.npm_execpath?.includes('npx') || 
+      process.env.npm_config_user_agent?.includes('npx')) {
+    _cachedPrefix = 'npx dpml-prompt@snapshot'
+  } else {
+    _cachedPrefix = 'npx dpml-prompt@snapshot' // 默认值保持安全
+  }
+
+  return _cachedPrefix
+}
+
+/**
+ * 智能推测用户使用的命令前缀
+ * 基于环境变量和执行路径的启发式判断
+ */
+function reconstructCommandPrefix() {
+  // 最简单最直接的判断：如果有 npm_execpath 且包含 npx，就是 npx 调用
+  if (process.env.npm_execpath && process.env.npm_execpath.includes('npx')) {
+    return 'npx dpml-prompt@snapshot' // 默认 snapshot 版本
+  }
+  
+  // 其他情况默认是全局安装
+  return 'dpml-prompt'
+}
+
+/**
+ * 保存命令前缀到配置文件
+ * 在init命令中调用
+ */
+async function saveCommandPrefix() {
+  try {
+    const actualPrefix = reconstructCommandPrefix()
+    const config = getConfig()
+    await config.writeText('command-prefix', actualPrefix)
+    
+    // 更新缓存
+    _cachedPrefix = actualPrefix
+    
+    return actualPrefix
+  } catch (error) {
+    console.warn('保存命令前缀失败:', error.message)
+    return null
+  }
+}
+
+// 动态生成命令常量（函数式）
+function getCommands() {
+  const prefix = detectCommandPrefix()
+  return {
+    INIT: `${prefix} init`,
+    HELLO: `${prefix} hello`,
+    ACTION: `${prefix} action`,
+    LEARN: `${prefix} learn`,
+    RECALL: `${prefix} recall`,
+    REMEMBER: `${prefix} remember`,
+    HELP: `${prefix} help`
+  }
 }
 
 // 带参数的命令构建函数
-export const buildCommand = {
-  action: (roleId) => `${COMMAND_PREFIX} action ${roleId}`,
-  learn: (resource) => `${COMMAND_PREFIX} learn ${resource}`,
-  recall: (query = '') => `${COMMAND_PREFIX} recall${query ? ' ' + query : ''}`,
-  remember: (content = '<content>') => `${COMMAND_PREFIX} remember${content !== '<content>' ? ' "' + content + '"' : ' <content>'}`
+function getBuildCommand() {
+  const prefix = detectCommandPrefix()
+  return {
+    action: (roleId) => `${prefix} action ${roleId}`,
+    learn: (resource) => `${prefix} learn ${resource}`,
+    recall: (query = '') => `${prefix} recall${query ? ' ' + query : ''}`,
+    remember: (content = '<content>') => `${prefix} remember${content !== '<content>' ? ' "' + content + '"' : ' <content>'}`
+  }
 }
 
-// 系统路径配置
-export const PATHS = {
+// 为了向后兼容，保留原有的静态导出方式
+// 但实际上是动态计算的
+const COMMANDS = new Proxy({}, {
+  get(target, prop) {
+    return getCommands()[prop]
+  }
+})
+
+const buildCommand = new Proxy({}, {
+  get(target, prop) {
+    return getBuildCommand()[prop]
+  }
+})
+
+// 系统路径配置（静态）
+const PATHS = {
   POUCH_DIR: '.promptx',
   MEMORY_DIR: '.promptx/memory',
   STATE_FILE: '.promptx/pouch.json',
@@ -34,10 +143,10 @@ export const PATHS = {
 }
 
 // 版本信息
-export const VERSION = '0.0.1'
+const VERSION = '0.0.1'
 
 // 系统状态
-export const STATES = {
+const STATES = {
   INITIALIZED: 'initialized',
   ROLE_DISCOVERY: 'role_discovery',
   ACTION_PLAN_GENERATED: 'action_plan_generated',
@@ -45,3 +154,31 @@ export const STATES = {
   MEMORY_SAVED: 'memory_saved',
   RECALL_WAITING: 'recall-waiting'
 }
+
+/**
+ * 清除缓存（主要用于测试）
+ */
+function clearCache() {
+  _cachedPrefix = null
+  _config = null
+}
+
+// 导出
+module.exports = {
+  // 新的函数式API（推荐）
+  getCommands,
+  getBuildCommand,
+  detectCommandPrefix,
+  reconstructCommandPrefix,
+  saveCommandPrefix,
+  clearCache,
+  
+  // 向后兼容的静态API
+  COMMANDS,
+  buildCommand,
+  
+  // 其他静态常量
+  PATHS,
+  VERSION,
+  STATES
+}
diff --git a/src/lib/core/pouch/commands/InitCommand.js b/src/lib/core/pouch/commands/InitCommand.js
index 8289423..8e17629 100644
--- a/src/lib/core/pouch/commands/InitCommand.js
+++ b/src/lib/core/pouch/commands/InitCommand.js
@@ -2,7 +2,7 @@ const BasePouchCommand = require('../BasePouchCommand')
 const fs = require('fs-extra')
 const path = require('path')
 const { ResourceManager } = require('../../resource')
-const { COMMANDS } = require('../../../../constants')
+const { COMMANDS, saveCommandPrefix } = require('../../../../constants')
 
 /**
  * 初始化锦囊命令
@@ -24,7 +24,10 @@ class InitCommand extends BasePouchCommand {
     // 1. 技术初始化
     await this.initializeWorkspace(workspacePath)
 
-    // 2. 加载协议体系
+    // 2. 保存命令前缀配置
+    const savedPrefix = await saveCommandPrefix()
+
+    // 3. 加载协议体系
     const protocolContent = await this.loadProtocolSystem()
 
     return `🎯 PromptX 系统初始化完成！
@@ -32,6 +35,7 @@ class InitCommand extends BasePouchCommand {
 ## 🏗️ 技术环境准备
 ✅ 创建了项目目录结构
 ✅ 配置了 .promptx/pouch.json 锦囊状态文件
+✅ 保存了命令前缀配置：${savedPrefix || '默认前缀'}
 ✅ 准备了锦囊状态机框架
 
 ## 📋 系统基本诺记 (协议体系)
diff --git a/src/lib/utils/promptxConfig.js b/src/lib/utils/promptxConfig.js
new file mode 100644
index 0000000..9e9a8e8
--- /dev/null
+++ b/src/lib/utils/promptxConfig.js
@@ -0,0 +1,129 @@
+const fs = require('fs-extra')
+const path = require('path')
+
+/**
+ * PromptX配置文件管理工具
+ * 统一管理.promptx目录下的所有配置文件
+ */
+class PromptXConfig {
+  constructor(baseDir = process.cwd()) {
+    this.baseDir = baseDir
+    this.promptxDir = path.join(baseDir, '.promptx')
+  }
+
+  /**
+   * 确保.promptx目录存在
+   */
+  async ensureDir() {
+    await fs.ensureDir(this.promptxDir)
+  }
+
+  /**
+   * 读取JSON配置文件
+   * @param {string} filename - 文件名（不含路径）
+   * @param {*} defaultValue - 文件不存在时的默认值
+   * @returns {Promise<*>} 配置对象
+   */
+  async readJson(filename, defaultValue = {}) {
+    const filePath = path.join(this.promptxDir, filename)
+    try {
+      if (await fs.pathExists(filePath)) {
+        return await fs.readJson(filePath)
+      }
+      return defaultValue
+    } catch (error) {
+      console.warn(`读取配置文件失败 ${filename}:`, error.message)
+      return defaultValue
+    }
+  }
+
+  /**
+   * 写入JSON配置文件
+   * @param {string} filename - 文件名（不含路径）
+   * @param {*} data - 要写入的数据
+   * @param {Object} options - 选项
+   */
+  async writeJson(filename, data, options = { spaces: 2 }) {
+    await this.ensureDir()
+    const filePath = path.join(this.promptxDir, filename)
+    await fs.writeJson(filePath, data, options)
+  }
+
+  /**
+   * 读取文本配置文件
+   * @param {string} filename - 文件名（不含路径）
+   * @param {string} defaultValue - 文件不存在时的默认值
+   * @returns {Promise<string>} 文件内容
+   */
+  async readText(filename, defaultValue = '') {
+    const filePath = path.join(this.promptxDir, filename)
+    try {
+      if (await fs.pathExists(filePath)) {
+        return await fs.readFile(filePath, 'utf8')
+      }
+      return defaultValue
+    } catch (error) {
+      console.warn(`读取配置文件失败 ${filename}:`, error.message)
+      return defaultValue
+    }
+  }
+
+  /**
+   * 写入文本配置文件
+   * @param {string} filename - 文件名（不含路径）
+   * @param {string} content - 要写入的内容
+   */
+  async writeText(filename, content) {
+    await this.ensureDir()
+    const filePath = path.join(this.promptxDir, filename)
+    await fs.writeFile(filePath, content, 'utf8')
+  }
+
+  /**
+   * 检查配置文件是否存在
+   * @param {string} filename - 文件名（不含路径）
+   * @returns {Promise<boolean>}
+   */
+  async exists(filename) {
+    const filePath = path.join(this.promptxDir, filename)
+    return await fs.pathExists(filePath)
+  }
+
+  /**
+   * 删除配置文件
+   * @param {string} filename - 文件名（不含路径）
+   */
+  async remove(filename) {
+    const filePath = path.join(this.promptxDir, filename)
+    try {
+      await fs.remove(filePath)
+    } catch (error) {
+      console.warn(`删除配置文件失败 ${filename}:`, error.message)
+    }
+  }
+
+  /**
+   * 获取配置文件路径
+   * @param {string} filename - 文件名（不含路径）
+   * @returns {string} 完整路径
+   */
+  getPath(filename) {
+    return path.join(this.promptxDir, filename)
+  }
+
+  /**
+   * 原子性更新JSON配置文件
+   * 读取 -> 修改 -> 写入，避免并发问题
+   * @param {string} filename - 文件名
+   * @param {Function} updater - 更新函数 (oldData) => newData
+   * @param {*} defaultValue - 文件不存在时的默认值
+   */
+  async updateJson(filename, updater, defaultValue = {}) {
+    const oldData = await this.readJson(filename, defaultValue)
+    const newData = await updater(oldData)
+    await this.writeJson(filename, newData)
+    return newData
+  }
+}
+
+module.exports = PromptXConfig 
\ No newline at end of file
diff --git a/src/tests/commands/command-prefix.e2e.test.js b/src/tests/commands/command-prefix.e2e.test.js
new file mode 100644
index 0000000..694f99c
--- /dev/null
+++ b/src/tests/commands/command-prefix.e2e.test.js
@@ -0,0 +1,200 @@
+const path = require('path')
+const fs = require('fs-extra')
+const { execSync } = require('child_process')
+const tmp = require('tmp')
+
+const PromptXConfig = require('../../lib/utils/promptxConfig')
+const PouchCLI = require('../../lib/core/pouch/PouchCLI')
+
+describe('命令前缀动态检测 E2E', () => {
+  let tempDir
+  let originalCwd
+  let config
+
+  beforeEach(async () => {
+    // 创建临时目录
+    tempDir = tmp.dirSync({ unsafeCleanup: true }).name
+    originalCwd = process.cwd()
+    process.chdir(tempDir)
+    
+    config = new PromptXConfig(tempDir)
+    
+    // 静默console输出
+    jest.spyOn(console, 'log').mockImplementation(() => {})
+    jest.spyOn(console, 'warn').mockImplementation(() => {})
+    
+    // 清除constants.js的缓存，避免测试间污染
+    delete require.cache[require.resolve('../../constants.js')]
+    const { clearCache } = require('../../constants.js')
+    clearCache()
+  })
+
+  afterEach(async () => {
+    process.chdir(originalCwd)
+    try {
+      await fs.remove(tempDir)
+    } catch (error) {
+      // 忽略清理失败
+    }
+    
+    // 恢复console输出
+    jest.restoreAllMocks()
+  })
+
+  describe('init命令保存命令前缀', () => {
+    test('npx方式调用时应保存npx前缀', async () => {
+      // 模拟npx调用init命令
+      process.argv = ['node', 'npx_cache/dpml-prompt@snapshot/dist/bin/promptx.js', 'init']
+      process.env.npm_execpath = '/usr/local/lib/node_modules/npm/bin/npx-cli.js'
+      
+      // 导入并执行init命令
+      const cli = new PouchCLI()
+      
+      await cli.execute('init', [])
+      
+      // 验证保存的命令前缀
+      const savedPrefix = await config.readText('command-prefix')
+      expect(savedPrefix).toBe('npx dpml-prompt@snapshot')
+    })
+
+    test('全局安装调用时应保存直接前缀', async () => {
+      // 模拟全局安装调用
+      process.argv = ['node', '/usr/local/bin/dpml-prompt', 'init']
+      delete process.env.npm_execpath
+      
+      const cli = new PouchCLI()
+      
+      await cli.execute('init', [])
+      
+      const savedPrefix = await config.readText('command-prefix')
+      expect(savedPrefix).toBe('dpml-prompt')
+    })
+
+    test('指定版本号时应正确保存', async () => {
+      process.argv = ['node', 'npx_cache/dpml-prompt@latest/dist/bin/promptx.js', 'init']
+      process.env.npm_execpath = '/usr/local/lib/node_modules/npm/bin/npx-cli.js'
+      
+      const cli = new PouchCLI()
+      
+      await cli.execute('init', [])
+      
+      const savedPrefix = await config.readText('command-prefix')
+      expect(savedPrefix).toBe('npx dpml-prompt@snapshot') // 简化逻辑只会返回默认snapshot版本
+    })
+  })
+
+  describe('constants.js动态读取', () => {
+    test('存在配置文件时应使用保存的前缀', async () => {
+      // 预先保存配置
+      await config.writeText('command-prefix', 'npx dpml-prompt@0.0.2')
+      
+      // 重新require constants.js以触发动态读取
+      delete require.cache[require.resolve('../../constants.js')]
+      const constants = require('../../constants.js')
+      
+      const commands = constants.getCommands()
+      expect(commands.INIT).toBe('npx dpml-prompt@0.0.2 init')
+      expect(commands.HELLO).toBe('npx dpml-prompt@0.0.2 hello')
+    })
+
+    test('不存在配置文件时应使用默认前缀', async () => {
+      // 确保配置文件不存在
+      await config.remove('command-prefix')
+      
+      delete require.cache[require.resolve('../../constants.js')]
+      const constants = require('../../constants.js')
+      
+      const commands = constants.getCommands()
+      expect(commands.INIT).toBe('npx dpml-prompt@snapshot init')
+    })
+
+    test('环境变量应能覆盖配置文件', async () => {
+      // 保存配置文件
+      await config.writeText('command-prefix', 'npx dpml-prompt@snapshot')
+      
+      // 设置环境变量
+      process.env.DPML_COMMAND_PREFIX = 'my-custom-prefix'
+      
+      delete require.cache[require.resolve('../../constants.js')]
+      const constants = require('../../constants.js')
+      
+      const commands = constants.getCommands()
+      expect(commands.INIT).toBe('my-custom-prefix init')
+      
+      // 清理环境变量
+      delete process.env.DPML_COMMAND_PREFIX
+    })
+  })
+
+  describe('各种命令格式解析', () => {
+    const testCases = [
+      {
+        name: 'npx最新版本',
+        argv: ['node', '/tmp/.npm/_npx/1234/lib/node_modules/dpml-prompt/src/bin/promptx.js', 'init'],
+        hasNpxEnv: true,
+        expected: 'npx dpml-prompt@snapshot'
+      },
+      {
+        name: 'npx指定版本', 
+        argv: ['node', '/tmp/.npm/_npx/1234/lib/node_modules/dpml-prompt@0.1.0/src/bin/promptx.js', 'init'],
+        hasNpxEnv: true,
+        expected: 'npx dpml-prompt@snapshot'
+      },
+      {
+        name: 'npx snapshot版本',
+        argv: ['node', '/tmp/.npm/_npx/1234/lib/node_modules/dpml-prompt@snapshot/src/bin/promptx.js', 'init'],
+        hasNpxEnv: true,
+        expected: 'npx dpml-prompt@snapshot'
+      },
+      {
+        name: '全局安装',
+        argv: ['node', '/usr/local/bin/dpml-prompt', 'init'],
+        hasNpxEnv: false,
+        expected: 'dpml-prompt'
+      },
+      {
+        name: '开发模式',
+        argv: ['node', '/Users/dev/PromptX/src/bin/promptx.js', 'init'],
+        hasNpxEnv: false,
+        expected: 'dpml-prompt'
+      }
+    ]
+
+    testCases.forEach(({ name, argv, hasNpxEnv, expected }) => {
+      test(`${name}: ${argv[1]} → ${expected}`, async () => {
+        process.argv = argv
+        
+        // 根据测试配置设置环境变量
+        if (hasNpxEnv) {
+          process.env.npm_execpath = '/usr/local/lib/node_modules/npm/bin/npx-cli.js'
+        } else {
+          delete process.env.npm_execpath
+        }
+        
+        const cli = new PouchCLI()
+        
+        await cli.execute('init', [])
+        
+        const savedPrefix = await config.readText('command-prefix')
+        expect(savedPrefix).toBe(expected)
+      })
+    })
+  })
+
+  describe('缓存性能', () => {
+    test('第二次调用应使用缓存，不重新检测', async () => {
+      // 第一次调用保存配置
+      await config.writeText('command-prefix', 'npx dpml-prompt@snapshot')
+      
+      // 模拟多次调用constants
+      delete require.cache[require.resolve('../../constants.js')]
+      const constants1 = require('../../constants.js')
+      
+      delete require.cache[require.resolve('../../constants.js')]
+      const constants2 = require('../../constants.js')
+      
+      // 两次调用应该返回相同结果
+      expect(constants1.getCommands().INIT).toBe(constants2.getCommands().INIT)
+    })
+  })
+}) 
\ No newline at end of file