diff --git a/docs/quickstart.md b/docs/quickstart.md
index 8de1f3c..bf571ad 100644
--- a/docs/quickstart.md
+++ b/docs/quickstart.md
@@ -74,6 +74,19 @@ Deep Code 会在当前目录中启动交互式界面。你可以直接输入任
 deepcode -p "总结这个项目"
 ```
 
+### 非交互模式（Headless）
+
+如果你需要在脚本、CI/CD 流水线或 Docker 容器中自动执行任务，可以使用 `--headless` 参数。该模式下 deepcode 不会启动交互界面，执行完 prompt 后自动退出并将结果输出到 stdout：
+
+```bash
+deepcode --headless -p "总结这个项目"
+
+# 可与管道组合
+deepcode --headless -p "列出所有 API 接口" | grep "auth"
+```
+
+`--headless` 必须与 `-p` 搭配使用，且在该模式下所有权限操作均自动批准。
+
 ## 第一次可以这样问
 
 可以先从只读任务开始：
diff --git a/docs/quickstart_en.md b/docs/quickstart_en.md
index 44f6269..d923504 100644
--- a/docs/quickstart_en.md
+++ b/docs/quickstart_en.md
@@ -74,6 +74,19 @@ To start with an initial prompt:
 deepcode -p "Summarize this project"
 ```
 
+### Non-Interactive Mode (Headless)
+
+For scripts, CI/CD pipelines, or Docker containers where you need automatic execution, use the `--headless` flag. In this mode, deepcode skips the interactive TUI, runs the prompt, prints the result to stdout, and exits:
+
+```bash
+deepcode --headless -p "Summarize this project"
+
+# Pipe with other tools
+deepcode --headless -p "List all API endpoints" | grep "auth"
+```
+
+`--headless` requires `-p`, and all permission operations are auto-approved in this mode.
+
 ## Try These First
 
 Start with a read-only task:
diff --git a/packages/cli/src/cli-args.ts b/packages/cli/src/cli-args.ts
index b86eda4..2977be9 100644
--- a/packages/cli/src/cli-args.ts
+++ b/packages/cli/src/cli-args.ts
@@ -33,6 +33,8 @@ export interface ParsedCliArgs {
   version: boolean;
   /** True when --help / -h was passed */
   help: boolean;
+  /** True when --headless was passed (non-interactive, run-and-exit mode) */
+  headless: boolean;
 }
 
 const EPILOG = [
@@ -73,7 +75,7 @@ async function configureYargs(argv?: string[]) {
     .locale("en")
     .scriptName("deepcode")
     .usage(
-      "Usage: $0 [options] [command]\n\nDeep Code - Launch an interactive CLI, use -p/--prompt for non-interactive mode"
+      "Usage: $0 [options] [command]\n\nDeep Code - Launch an interactive CLI, use -p/--prompt with --headless for non-interactive mode"
     )
     .command("$0 [query..]", "Launch Deep Code CLI", (yargsInstance: Argv) =>
       yargsInstance
@@ -82,6 +84,10 @@ async function configureYargs(argv?: string[]) {
           type: "string",
           describe: "Submit a prompt on launch",
         })
+        .option("headless", {
+          type: "boolean",
+          describe: "Run in non-interactive (headless) mode. Use with --prompt to execute and exit automatically.",
+        })
         .option("resume", {
           alias: "r",
           type: "string",
@@ -106,6 +112,10 @@ async function configureYargs(argv?: string[]) {
           if (argv["prompt"] === "") {
             return "--prompt / -p requires a non-empty value.";
           }
+          // headless mode requires --prompt
+          if (argv["headless"] && !argv["prompt"]) {
+            return "--headless mode requires --prompt / -p with a non-empty value.";
+          }
           return true;
         })
     )
@@ -156,5 +166,6 @@ export async function parseArguments(argv?: string[]): Promise<ParsedCliArgs> {
     resume,
     version: parsed.version === true,
     help: parsed.help === true,
+    headless: parsed.headless === true,
   };
 }
diff --git a/packages/cli/src/cli.tsx b/packages/cli/src/cli.tsx
index 80b11f0..362472a 100644
--- a/packages/cli/src/cli.tsx
+++ b/packages/cli/src/cli.tsx
@@ -3,7 +3,14 @@ import { render } from "ink";
 import { readFileSync } from "node:fs";
 import { join } from "node:path";
 import { homedir } from "node:os";
-import { setShellIfWindows, getProjectCode } from "@vegamo/deepcode-core";
+import {
+  setShellIfWindows,
+  getProjectCode,
+  SessionManager,
+  createOpenAIClient,
+  resolveCurrentSettings,
+} from "@vegamo/deepcode-core";
+import type { SessionMessage, LlmStreamProgress } from "@vegamo/deepcode-core";
 import { checkForNpmUpdate, promptForPendingUpdate } from "./common/update-check";
 import { AppContainer } from "./ui";
 import { parseArguments } from "./cli-args";
@@ -32,6 +39,11 @@ async function main(): Promise<void> {
   let resumeSessionId = parsed.resume;
   const projectRoot = process.cwd();
 
+  if (parsed.headless && parsed.prompt) {
+    await runHeadless(parsed.prompt, projectRoot);
+    return;
+  }
+
   if (!process.stdin.isTTY) {
     writeStderrLine("deepcode requires an interactive terminal (TTY). Re-run from a real terminal session.\n");
     process.exit(1);
@@ -115,3 +127,65 @@ function configureWindowsShell(): void {
     process.exit(1);
   }
 }
+
+/**
+ * Run in headless (non-interactive) mode.
+ * Creates a SessionManager, submits the prompt, outputs the final response, and exits.
+ */
+async function runHeadless(promptText: string, projectRoot: string): Promise<void> {
+  process.stderr.write("[headless] Starting non-interactive mode...\n");
+
+  const assistantMessages: SessionMessage[] = [];
+
+  const sessionManager = new SessionManager({
+    projectRoot,
+    createOpenAIClient: () => createOpenAIClient(projectRoot),
+    getResolvedSettings: () => {
+      const settings = resolveCurrentSettings(projectRoot);
+      // Headless = no user to ask → auto-approve all permissions
+      return {
+        ...settings,
+        permissions: {
+          allow: [],
+          deny: [],
+          ask: [],
+          defaultMode: "allowAll" as const,
+        },
+      };
+    },
+    renderMarkdown: (text: string) => text,
+    onAssistantMessage: (message: SessionMessage) => {
+      assistantMessages.push(message);
+      // Stream content to stdout as it arrives
+      if (message.content) {
+        process.stdout.write(message.content as string);
+      }
+    },
+    onLlmStreamProgress: (progress: LlmStreamProgress) => {
+      if (progress.phase === "start") {
+        process.stderr.write("[headless] Model is thinking...\n");
+      } else if (progress.phase === "end") {
+        process.stderr.write("[headless] Response complete.\n");
+      }
+    },
+  });
+
+  try {
+    // Initialize MCP servers from settings
+    const settings = resolveCurrentSettings(projectRoot);
+    await sessionManager.initMcpServers(settings.mcpServers);
+
+    // Submit the prompt
+    await sessionManager.handleUserPrompt({ text: promptText });
+
+    process.stdout.write("\n");
+  } catch (error) {
+    const message = error instanceof Error ? error.message : String(error);
+    process.stderr.write(`[headless] Error: ${message}\n`);
+    process.exit(1);
+  } finally {
+    sessionManager.dispose();
+  }
+
+  process.exit(0);
+}