diff --git a/src/__tests__/addTask.test.ts b/src/__tests__/addTask.test.ts
index 8c645a3..5bba9ba 100644
--- a/src/__tests__/addTask.test.ts
+++ b/src/__tests__/addTask.test.ts
@@ -66,7 +66,7 @@ vi.mock('../infra/github/issue.js', () => ({
 import { interactiveMode } from '../features/interactive/index.js';
 import { promptInput, confirm } from '../shared/prompt/index.js';
 import { determinePiece } from '../features/tasks/execute/selectAndExecute.js';
-import { resolveIssueTask } from '../infra/github/issue.js';
+import { resolveIssueTask, createIssue } from '../infra/github/issue.js';
 import { addTask } from '../features/tasks/index.js';
 
 const mockResolveIssueTask = vi.mocked(resolveIssueTask);
@@ -74,6 +74,7 @@ const mockInteractiveMode = vi.mocked(interactiveMode);
 const mockPromptInput = vi.mocked(promptInput);
 const mockConfirm = vi.mocked(confirm);
 const mockDeterminePiece = vi.mocked(determinePiece);
+const mockCreateIssue = vi.mocked(createIssue);
 
 let testDir: string;
 
@@ -138,4 +139,32 @@ describe('addTask', () => {
 
     expect(fs.existsSync(path.join(testDir, '.takt', 'tasks.yaml'))).toBe(false);
   });
+
+  it('should create issue and save task when create_issue action is chosen', async () => {
+    // Given
+    mockInteractiveMode.mockResolvedValue({ action: 'create_issue', task: 'New feature' });
+    mockCreateIssue.mockReturnValue({ success: true, url: 'https://github.com/owner/repo/issues/55' });
+    mockConfirm.mockResolvedValue(false);
+
+    // When
+    await addTask(testDir);
+
+    // Then
+    const tasks = loadTasks(testDir).tasks;
+    expect(tasks).toHaveLength(1);
+    expect(tasks[0]?.issue).toBe(55);
+    expect(tasks[0]?.content).toContain('New feature');
+  });
+
+  it('should not save task when issue creation fails in create_issue action', async () => {
+    // Given
+    mockInteractiveMode.mockResolvedValue({ action: 'create_issue', task: 'New feature' });
+    mockCreateIssue.mockReturnValue({ success: false, error: 'auth failed' });
+
+    // When
+    await addTask(testDir);
+
+    // Then
+    expect(fs.existsSync(path.join(testDir, '.takt', 'tasks.yaml'))).toBe(false);
+  });
 });
diff --git a/src/__tests__/cli-routing-issue-resolve.test.ts b/src/__tests__/cli-routing-issue-resolve.test.ts
index 41c53b1..b7ed5d6 100644
--- a/src/__tests__/cli-routing-issue-resolve.test.ts
+++ b/src/__tests__/cli-routing-issue-resolve.test.ts
@@ -36,7 +36,7 @@ vi.mock('../features/tasks/index.js', () => ({
   selectAndExecuteTask: vi.fn(),
   determinePiece: vi.fn(),
   saveTaskFromInteractive: vi.fn(),
-  createIssueFromTask: vi.fn(),
+  createIssueAndSaveTask: vi.fn(),
 }));
 
 vi.mock('../features/pipeline/index.js', () => ({
@@ -83,7 +83,7 @@ vi.mock('../app/cli/helpers.js', () => ({
 }));
 
 import { checkGhCli, fetchIssue, formatIssueAsTask, parseIssueNumbers } from '../infra/github/issue.js';
-import { selectAndExecuteTask, determinePiece } from '../features/tasks/index.js';
+import { selectAndExecuteTask, determinePiece, createIssueAndSaveTask } from '../features/tasks/index.js';
 import { interactiveMode } from '../features/interactive/index.js';
 import { isDirectTask } from '../app/cli/helpers.js';
 import { executeDefaultAction } from '../app/cli/routing.js';
@@ -95,6 +95,7 @@ const mockFormatIssueAsTask = vi.mocked(formatIssueAsTask);
 const mockParseIssueNumbers = vi.mocked(parseIssueNumbers);
 const mockSelectAndExecuteTask = vi.mocked(selectAndExecuteTask);
 const mockDeterminePiece = vi.mocked(determinePiece);
+const mockCreateIssueAndSaveTask = vi.mocked(createIssueAndSaveTask);
 const mockInteractiveMode = vi.mocked(interactiveMode);
 const mockIsDirectTask = vi.mocked(isDirectTask);
 
@@ -261,4 +262,32 @@ describe('Issue resolution in routing', () => {
       expect(mockSelectAndExecuteTask).not.toHaveBeenCalled();
     });
   });
+
+  describe('create_issue action', () => {
+    it('should delegate to createIssueAndSaveTask with cwd, task, and pieceId', async () => {
+      // Given
+      mockInteractiveMode.mockResolvedValue({ action: 'create_issue', task: 'New feature request' });
+
+      // When
+      await executeDefaultAction();
+
+      // Then: createIssueAndSaveTask should be called with correct args
+      expect(mockCreateIssueAndSaveTask).toHaveBeenCalledWith(
+        '/test/cwd',
+        'New feature request',
+        'default',
+      );
+    });
+
+    it('should not call selectAndExecuteTask when create_issue action is chosen', async () => {
+      // Given
+      mockInteractiveMode.mockResolvedValue({ action: 'create_issue', task: 'New feature request' });
+
+      // When
+      await executeDefaultAction();
+
+      // Then: selectAndExecuteTask should NOT be called
+      expect(mockSelectAndExecuteTask).not.toHaveBeenCalled();
+    });
+  });
 });
diff --git a/src/__tests__/createIssueFromTask.test.ts b/src/__tests__/createIssueFromTask.test.ts
index 2d15a87..e31d3ed 100644
--- a/src/__tests__/createIssueFromTask.test.ts
+++ b/src/__tests__/createIssueFromTask.test.ts
@@ -114,6 +114,42 @@ describe('createIssueFromTask', () => {
     expect(mockSuccess).not.toHaveBeenCalled();
   });
 
+  describe('return value', () => {
+    it('should return issue number when creation succeeds', () => {
+      // Given
+      mockCreateIssue.mockReturnValue({ success: true, url: 'https://github.com/owner/repo/issues/42' });
+
+      // When
+      const result = createIssueFromTask('Test task');
+
+      // Then
+      expect(result).toBe(42);
+    });
+
+    it('should return undefined when creation fails', () => {
+      // Given
+      mockCreateIssue.mockReturnValue({ success: false, error: 'auth failed' });
+
+      // When
+      const result = createIssueFromTask('Test task');
+
+      // Then
+      expect(result).toBeUndefined();
+    });
+
+    it('should return undefined and display error when URL has non-numeric suffix', () => {
+      // Given
+      mockCreateIssue.mockReturnValue({ success: true, url: 'https://github.com/owner/repo/issues/abc' });
+
+      // When
+      const result = createIssueFromTask('Test task');
+
+      // Then
+      expect(result).toBeUndefined();
+      expect(mockError).toHaveBeenCalledWith('Failed to extract issue number from URL');
+    });
+  });
+
   it('should use first line as title and full text as body for multi-line task', () => {
     // Given: multi-line task
     const task = 'First line title\nSecond line details\nThird line more info';
diff --git a/src/__tests__/saveTaskFile.test.ts b/src/__tests__/saveTaskFile.test.ts
index 51078ae..0e179e3 100644
--- a/src/__tests__/saveTaskFile.test.ts
+++ b/src/__tests__/saveTaskFile.test.ts
@@ -122,4 +122,16 @@ describe('saveTaskFromInteractive', () => {
 
     expect(mockInfo).toHaveBeenCalledWith('  Piece: review');
   });
+
+  it('should record issue number in tasks.yaml when issue option is provided', async () => {
+    // Given: user declines worktree
+    mockConfirm.mockResolvedValueOnce(false);
+
+    // When
+    await saveTaskFromInteractive(testDir, 'Fix login bug', 'default', { issue: 42 });
+
+    // Then
+    const task = loadTasks(testDir).tasks[0]!;
+    expect(task.issue).toBe(42);
+  });
 });
diff --git a/src/app/cli/routing.ts b/src/app/cli/routing.ts
index 53dff76..5d49ffa 100644
--- a/src/app/cli/routing.ts
+++ b/src/app/cli/routing.ts
@@ -9,7 +9,7 @@ import { info, error } from '../../shared/ui/index.js';
 import { getErrorMessage } from '../../shared/utils/index.js';
 import { getLabel } from '../../shared/i18n/index.js';
 import { fetchIssue, formatIssueAsTask, checkGhCli, parseIssueNumbers, type GitHubIssue } from '../../infra/github/index.js';
-import { selectAndExecuteTask, determinePiece, saveTaskFromInteractive, createIssueFromTask, type SelectAndExecuteOptions } from '../../features/tasks/index.js';
+import { selectAndExecuteTask, determinePiece, saveTaskFromInteractive, createIssueAndSaveTask, type SelectAndExecuteOptions } from '../../features/tasks/index.js';
 import { executePipeline } from '../../features/pipeline/index.js';
 import {
   interactiveMode,
@@ -188,7 +188,7 @@ export async function executeDefaultAction(task?: string): Promise<void> {
       break;
 
     case 'create_issue':
-      createIssueFromTask(result.task);
+      await createIssueAndSaveTask(resolvedCwd, result.task, pieceId);
       break;
 
     case 'save_task':
diff --git a/src/features/tasks/add/index.ts b/src/features/tasks/add/index.ts
index e7a4c94..6d3ef39 100644
--- a/src/features/tasks/add/index.ts
+++ b/src/features/tasks/add/index.ts
@@ -48,15 +48,22 @@ export async function saveTaskFile(
  * Extracts the first line as the issue title (truncated to 100 chars),
  * uses the full task as the body, and displays success/error messages.
  */
-export function createIssueFromTask(task: string): void {
+export function createIssueFromTask(task: string): number | undefined {
   info('Creating GitHub Issue...');
   const firstLine = task.split('\n')[0] || task;
   const title = firstLine.length > 100 ? `${firstLine.slice(0, 97)}...` : firstLine;
   const issueResult = createIssue({ title, body: task });
   if (issueResult.success) {
     success(`Issue created: ${issueResult.url}`);
+    const num = Number(issueResult.url!.split('/').pop());
+    if (Number.isNaN(num)) {
+      error('Failed to extract issue number from URL');
+      return undefined;
+    }
+    return num;
   } else {
     error(`Failed to create issue: ${issueResult.error}`);
+    return undefined;
   }
 }
 
@@ -66,6 +73,38 @@ interface WorktreeSettings {
   autoPr?: boolean;
 }
 
+function displayTaskCreationResult(
+  created: { taskName: string; tasksFile: string },
+  settings: WorktreeSettings,
+  piece?: string,
+): void {
+  success(`Task created: ${created.taskName}`);
+  info(`  File: ${created.tasksFile}`);
+  if (settings.worktree) {
+    info(`  Worktree: ${typeof settings.worktree === 'string' ? settings.worktree : 'auto'}`);
+  }
+  if (settings.branch) {
+    info(`  Branch: ${settings.branch}`);
+  }
+  if (settings.autoPr) {
+    info(`  Auto-PR: yes`);
+  }
+  if (piece) info(`  Piece: ${piece}`);
+}
+
+/**
+ * Create a GitHub Issue and save the task to .takt/tasks.yaml.
+ *
+ * Combines issue creation and task saving into a single workflow.
+ * If issue creation fails, no task is saved.
+ */
+export async function createIssueAndSaveTask(cwd: string, task: string, piece?: string): Promise<void> {
+  const issueNumber = createIssueFromTask(task);
+  if (issueNumber !== undefined) {
+    await saveTaskFromInteractive(cwd, task, piece, { issue: issueNumber });
+  }
+}
+
 async function promptWorktreeSettings(): Promise<WorktreeSettings> {
   const useWorktree = await confirm('Create worktree?', true);
   if (!useWorktree) {
@@ -91,21 +130,11 @@ export async function saveTaskFromInteractive(
   cwd: string,
   task: string,
   piece?: string,
+  options?: { issue?: number },
 ): Promise<void> {
   const settings = await promptWorktreeSettings();
-  const created = await saveTaskFile(cwd, task, { piece, ...settings });
-  success(`Task created: ${created.taskName}`);
-  info(`  File: ${created.tasksFile}`);
-  if (settings.worktree) {
-    info(`  Worktree: ${typeof settings.worktree === 'string' ? settings.worktree : 'auto'}`);
-  }
-  if (settings.branch) {
-    info(`  Branch: ${settings.branch}`);
-  }
-  if (settings.autoPr) {
-    info(`  Auto-PR: yes`);
-  }
-  if (piece) info(`  Piece: ${piece}`);
+  const created = await saveTaskFile(cwd, task, { piece, issue: options?.issue, ...settings });
+  displayTaskCreationResult(created, settings, piece);
 }
 
 /**
@@ -161,7 +190,7 @@ export async function addTask(cwd: string, task?: string): Promise<void> {
     const result = await interactiveMode(cwd, undefined, pieceContext);
 
     if (result.action === 'create_issue') {
-      createIssueFromTask(result.task);
+      await createIssueAndSaveTask(cwd, result.task, piece);
       return;
     }
 
@@ -184,18 +213,5 @@ export async function addTask(cwd: string, task?: string): Promise<void> {
     ...settings,
   });
 
-  success(`Task created: ${created.taskName}`);
-  info(`  File: ${created.tasksFile}`);
-  if (settings.worktree) {
-    info(`  Worktree: ${typeof settings.worktree === 'string' ? settings.worktree : 'auto'}`);
-  }
-  if (settings.branch) {
-    info(`  Branch: ${settings.branch}`);
-  }
-  if (settings.autoPr) {
-    info(`  Auto-PR: yes`);
-  }
-  if (piece) {
-    info(`  Piece: ${piece}`);
-  }
+  displayTaskCreationResult(created, settings, piece);
 }
diff --git a/src/features/tasks/index.ts b/src/features/tasks/index.ts
index e276807..f413860 100644
--- a/src/features/tasks/index.ts
+++ b/src/features/tasks/index.ts
@@ -14,7 +14,7 @@ export {
   type SelectAndExecuteOptions,
   type WorktreeConfirmationResult,
 } from './execute/selectAndExecute.js';
-export { addTask, saveTaskFile, saveTaskFromInteractive, createIssueFromTask } from './add/index.js';
+export { addTask, saveTaskFile, saveTaskFromInteractive, createIssueFromTask, createIssueAndSaveTask } from './add/index.js';
 export { watchTasks } from './watch/index.js';
 export {
   listTasks,