diff --git a/packages/cli/src/commands/ask.ts b/packages/cli/src/commands/ask.ts
new file mode 100755
index 0000000..50f9853
--- /dev/null
+++ b/packages/cli/src/commands/ask.ts
@@ -0,0 +1,266 @@
+/**
+ * AskCommand - Direct AI task execution
+ * air ask "task description" → MainAgent → LLM → tools → result
+ *
+ * @module packages/cli/src/commands/ask
+ */
+
+import { loadConfig } from '../bootstrap/loadConfig.js'
+import { createRuntime } from '../bootstrap/createRuntime.js'
+import { initCommand } from './init.js'
+import { existsSync } from 'fs'
+import { join } from 'path'
+import { ProviderManager, createAnthropicAdapter, OpenAICompatibleAdapter } from '@aircoding/llm'
+import { MainAgent } from '@aircoding/runtime'
+import type { ProviderAdapter } from '@aircoding/contracts'
+
+export async function askCommand(prompt: string, opts?: { model?: string; maxTurns?: number }): Promise<void> {
+  if (!prompt) {
+    console.log('Usage: air ask "<task description>"')
+    console.log('Example: air ask "create a C++ program that prints hello world"')
+    process.exit(1)
+  }
+
+  const config = loadConfig()
+  const projectRoot = config.project_root || process.cwd()
+
+  // Auto-init if not already initialized
+  if (!existsSync(join(projectRoot, '.air', 'shared', 'project.json'))) {
+    console.log('Project not initialized. Running air init first...\n')
+    await initCommand(projectRoot)
+  }
+
+  const model = opts?.model || process.env.AIRCODING_MODEL || 'glm-5.1'
+  const maxTurns = opts?.maxTurns || 10
+
+  console.log('══════════════════════════════════════════════')
+  console.log(' AirCoding v1.0.0-alpha')
+  console.log(' Project:', projectRoot)
+  console.log(' Model:', model)
+  console.log('══════════════════════════════════════════════\n')
+
+  // Create ProviderManager with available adapter
+  const provider = createProvider(model)
+
+  // Create runtime
+  const runtime = await createRuntime(config)
+  await runtime.start()
+
+  const app = runtime.app
+
+  // Create MainAgent with regex classifier (中文 support added)
+  const agent = new MainAgent({
+    session_id: 'ask-session',
+    project_id: 'ask-project',
+    classify_mode: 'regex',
+    provider_manager: provider as any,
+    classify_model: model
+  })
+
+  console.log('Task:', prompt)
+  console.log('')
+
+  // Classify intent
+  const classification = await agent.handle_user_message(prompt)
+  console.log(`[${classification.action}] ${agent.state}`)
+
+  // Execute based on action
+  if (classification.action === 'delegate') {
+    await execute_task(prompt, provider, app.tool_registry, app.context_assembler, model, projectRoot, maxTurns)
+  } else if (classification.action === 'answer') {
+    console.log('\n' + (classification.response || 'No response'))
+  } else {
+    console.log('Direct mode not yet supported for ask. Use implementation requests.')
+  }
+
+  await runtime.shutdown()
+}
+
+async function execute_task(
+  task: string,
+  provider: any,
+  toolRegistry: any,
+  contextAssembler: any,
+  model: string,
+  projectRoot: string,
+  maxTurns: number
+): Promise<void> {
+  const ctx = {
+    session_id: 'ask-session',
+    project_id: 'ask-project',
+    agent_id: 'ask-agent',
+    permission_template: 'main_direct' as const,
+    cwd: projectRoot
+  }
+
+  const systemPrompt = `You are an AI coding assistant. Help the user by reading files, writing code, and running commands.
+
+Available tools:
+- fs.read(path)      — Read a file
+- fs.write(path, content) — Write/create a file
+- fs.edit(path, old_str, new_str) — Edit a file
+- fs.list(path, depth?) — List directory contents
+- fs.stat(path)      — Get file info
+- shell.run(command, timeout?) — Run a shell command
+- git.status()       — Show git status
+- project.scan(root) — Scan project for source files
+- cpp.detect()       — Detect C++ project
+- cpp.build(target?) — Build C++ project
+- cpp.test(filter?)  — Run C++ tests
+
+To use a tool, output EXACTLY:
+\`\`\`json
+{"tool": "fs.read", "args": {"path": "file.cpp"}}
+\`\`\`
+
+When you are done, output:
+DONE: <summary of what was done>`
+
+  const messages: any[] = [
+    { role: 'system', content: systemPrompt },
+    { role: 'user', content: task }
+  ]
+
+  let turn = 0
+  const changedFiles: string[] = []
+
+  while (turn < maxTurns) {
+    turn++
+    console.log(`─ Turn ${turn}/${maxTurns} ─`)
+
+    // Call LLM
+    const result = await provider.complete_text(messages, { model, max_tokens: 4096 })
+    let text = result.content || ''
+
+    // Strip GLM reasoning tags if present
+    text = text.replace(/<\/?think>/g, '')
+
+    // Show LLM response summary
+    const preview = text.slice(0, 100).replace(/\n/g, ' ')
+    console.log(`  LLM: ${preview}...`)
+
+    // Parse tool calls FIRST (before DONE check — LLM may emit both)
+    const tools = parseToolCalls(text)
+
+    if (tools.length > 0) {
+      console.log(`  Tools: ${tools.map(t => t.name).join(', ')}`)
+
+      // Add assistant message
+      messages.push({ role: 'assistant', content: text })
+
+      // Execute each tool call
+      for (const tool of tools) {
+        try {
+          const toolResult = await toolRegistry.call(
+            { call_id: `ask-${Date.now()}`, name: tool.name, arguments: tool.args },
+            ctx
+          )
+
+          const output = toolResult.status === 'ok'
+            ? JSON.stringify(toolResult.output).slice(0, 500)
+            : `Error: ${JSON.stringify(toolResult.error)}`
+
+          console.log(`    ✓ ${tool.name}: ${output.slice(0, 100)}`)
+
+          if (tool.name === 'fs.write' || tool.name === 'fs.edit') {
+            changedFiles.push(String(tool.args.path || 'unknown'))
+          }
+
+          messages.push({
+            role: 'user',
+            content: `Tool ${tool.name} result: ${output}`
+          })
+        } catch (e: any) {
+          messages.push({
+            role: 'user',
+            content: `Tool ${tool.name} error: ${e.message}`
+          })
+        }
+      }
+
+      // After executing tools, check for DONE
+      if (text.includes('DONE:')) {
+        const summary = text.split('DONE:')[1]?.trim() || 'Task completed'
+        console.log(`\n✅ ${summary}`)
+        break
+      }
+
+      // Ask LLM to continue with remaining work
+      messages.push({
+        role: 'user',
+        content: 'Tools executed successfully. If the task is complete, respond with DONE: <summary>. Otherwise continue with more tool calls.'
+      })
+      continue
+    }
+
+    // No tool calls — LLM is just talking
+    // Check for DONE (no tools to execute)
+    if (text.includes('DONE:')) {
+      const summary = text.split('DONE:')[1]?.trim() || 'Task completed'
+      console.log(`\n✅ ${summary}`)
+      break
+    }
+  }
+
+  if (turn >= maxTurns) {
+    console.log(`\n⚠️  Reached max ${maxTurns} turns. Task may be incomplete.`)
+  }
+
+  if (changedFiles.length > 0) {
+    console.log(`\nChanged files: ${changedFiles.join(', ')}`)
+  }
+}
+
+function parseToolCalls(text: string): Array<{ name: string; args: Record<string, unknown> }> {
+  const calls: Array<{ name: string; args: Record<string, unknown> }> = []
+
+  // Pattern 1: ```tool or ```json code blocks
+  const blockRe = /```(?:tool|json)\s*\n?([\s\S]*?)```/g
+  for (const match of text.matchAll(blockRe)) {
+    try {
+      const parsed = JSON.parse(match[1].trim())
+      if (parsed.tool) calls.push({ name: parsed.tool, args: parsed.args || {} })
+    } catch { /* skip */ }
+  }
+
+  // Pattern 2: {"tool": "..."} inline JSON anywhere in text
+  const jsonRe = /\{\s*"tool"\s*:\s*"([^"]+)"\s*,\s*"args"\s*:\s*(\{[^}]+\})\s*\}/g
+  for (const match of text.matchAll(jsonRe)) {
+    try {
+      const name = match[1]
+      const args = JSON.parse(match[2])
+      if (!calls.some(c => c.name === name)) {
+        calls.push({ name, args })
+      }
+    } catch { /* skip */ }
+  }
+
+  return calls
+}
+
+function createProvider(model: string): any {
+  const apiKey = process.env.AIRCODING_API_KEY || process.env.OPENAI_API_KEY || ''
+  const apiUrl = process.env.AIRCODING_API_URL || process.env.OPENAI_BASE_URL || 'https://api.openai.com/v1'
+
+  if (!apiKey) {
+    console.log('⚠️  No API key found. Set AIRCODING_API_KEY or OPENAI_API_KEY.')
+    console.log('   Export: export AIRCODING_API_KEY="your-key"')
+    process.exit(1)
+  }
+
+  const adapter = new OpenAICompatibleAdapter({
+    base_url: apiUrl,
+    api_key: apiKey,
+    model
+  })
+
+  // Wrap adapter in a simple provider interface
+  return {
+    adapters: new Map([['openai-compatible', adapter]]),
+    current_adapter: adapter,
+    current_model: model,
+    async complete_text(messages: unknown[], options: { model?: string; max_tokens?: number } = {}) {
+      return (adapter as any).complete_text(messages, options)
+    }
+  }
+}
diff --git a/packages/cli/src/index.ts b/packages/cli/src/index.ts
index 6d32ae0..c8f40c2 100755
--- a/packages/cli/src/index.ts
+++ b/packages/cli/src/index.ts
@@ -31,6 +31,7 @@ import { sessionCommand } from './commands/session.js'
 import { restoreCommand } from './commands/restore.js'
 import { e2eCommand } from './commands/e2e.js'
 import { releaseCommand } from './commands/release.js'
+import { askCommand } from './commands/ask.js'
 
 export async function main(argv: string[]): Promise<void> {
   const args = argv.slice(2)
@@ -42,6 +43,13 @@ export async function main(argv: string[]): Promise<void> {
       await runCommand(rest[0])
       break
 
+    case 'ask':
+      await askCommand(rest.join(' '), {
+        model: rest.find(a => a.startsWith('--model='))?.split('=')[1],
+        maxTurns: rest.find(a => a.startsWith('--turns='))?.split('=')[1] ? parseInt(rest.find(a => a.startsWith('--turns='))!.split('=')[1]) : undefined
+      })
+      break
+
     case 'init':
       await initCommand(rest[0])
       break
@@ -107,6 +115,7 @@ AirCoding V1.0.0 Alpha
 Usage: air <command> [args...]
 
 Commands:
+  ask "<prompt>"      Ask the AI to implement a task
   run [project]      Start a session (spawns TUI)
   init               Initialize a new AirCoding project
   doctor [--fix]     Run diagnostic checks
diff --git a/packages/runtime/src/agents/main/MainAgent.ts b/packages/runtime/src/agents/main/MainAgent.ts
index 6bfe32f..eef40b6 100755
--- a/packages/runtime/src/agents/main/MainAgent.ts
+++ b/packages/runtime/src/agents/main/MainAgent.ts
@@ -134,20 +134,28 @@ export class MainAgent {
   }
 
   /**
-   * Regex-based intent classification (Alpha scope, 5 patterns).
+   * Regex-based intent classification (Alpha scope, supports EN + 中文).
    */
   private classify_regex(message: string): string {
     const lower = message.toLowerCase()
 
-    if (/^(what|how|why|when|where|who|can you|could you|explain)/.test(lower)) {
+    // Questions
+    if (/^(what|how|why|when|where|who|can you|could you|explain|什么是|怎么|如何|为什么|什么意思)/.test(lower)) {
       return 'simple_question'
     }
 
-    if (/^(\/direct|\/done|implement|create|build|write|add|fix|change|update|remove|delete|refactor)/.test(lower)) {
+    // Implementation requests — English
+    if (/^(\/direct|\/done|implement|create|build|write|add|fix|change|update|remove|delete|refactor|make|generate)/.test(lower)) {
       return 'implementation_request'
     }
 
-    if (/^(run|execute|test|debug|check|inspect)/.test(lower)) {
+    // Implementation requests — 中文
+    if (/创建|写|开发|实现|生成|建立|构建|编译|修改|删除|添加|增加|修复|重构|制作/.test(message)) {
+      return 'implementation_request'
+    }
+
+    // Direct commands
+    if (/^(run|execute|test|debug|check|inspect|运行|执行|测试|调试|检查)/.test(lower)) {
       return 'direct_command'
     }