diff --git a/tests/propose.spec.ts b/tests/propose.spec.ts
new file mode 100644
index 0000000..1bfc0bc
--- /dev/null
+++ b/tests/propose.spec.ts
@@ -0,0 +1,264 @@
+/**
+ * Propose E2E Tests
+ * Covers: create, list, view, edit, accept, reject, reopen flows
+ */
+import { test, expect } from '@playwright/test';
+
+const BASE_URL = process.env.BASE_URL || process.env.FRONTEND_URL || 'http://frontend:3000';
+const ADMIN_USERNAME = 'admin';
+const ADMIN_PASSWORD = 'admin123';
+
+test.describe('Propose Management', () => {
+  const login = async (page: any) => {
+    console.log('🔐 Logging in...');
+    const MAX_LOGIN_RETRIES = 3;
+    for (let attempt = 1; attempt <= MAX_LOGIN_RETRIES; attempt++) {
+      console.log(`Login attempt ${attempt}/${MAX_LOGIN_RETRIES}`);
+      await page.goto(`${BASE_URL}/login`);
+      await page.waitForLoadState('networkidle');
+
+      await page.fill('input[type="text"], input[name="username"]', ADMIN_USERNAME);
+      await page.fill('input[type="password"], input[name="password"]', ADMIN_PASSWORD);
+
+      const loginPromise = page.waitForResponse(
+        (r: any) => r.url().includes('/auth/token') && r.request().method() === 'POST',
+        { timeout: 15000 }
+      ).catch(() => null);
+
+      await page.click('button[type="submit"], button:has-text("Sign in")');
+
+      const loginResp = await loginPromise;
+      if (loginResp && loginResp.status() === 200) {
+        await page.waitForURL(`${BASE_URL}/**`, { timeout: 10000 }).catch(() => {});
+        await page.waitForLoadState('networkidle');
+        break;
+      }
+      if (attempt < MAX_LOGIN_RETRIES) {
+        console.log('Retrying login in 3s...');
+        await page.waitForTimeout(3000);
+      }
+    }
+
+    const token = await page.evaluate(() => localStorage.getItem('token'));
+    expect(token, 'Login failed').toBeTruthy();
+    console.log('✅ Logged in');
+  };
+
+  const createProject = async (page: any, name: string) => {
+    console.log(`📁 Creating project: ${name}`);
+    await page.goto(`${BASE_URL}/projects`);
+    await page.waitForLoadState('networkidle');
+    await page.click('button:has-text("+ New")');
+    await page.waitForSelector('.modal', { timeout: 10000 });
+    await page.fill('.modal input[placeholder*="Project name"]', name);
+    await page.fill('.modal textarea', 'Test project description');
+    await page.click('.modal button:has-text("Create")');
+    await page.waitForTimeout(1000);
+    console.log('✅ Project created');
+  };
+
+  const createMilestone = async (page: any, name: string) => {
+    console.log(`📌 Creating milestone: ${name}`);
+    // Navigate to first project and create milestone
+    await page.goto(`${BASE_URL}/projects`);
+    await page.waitForLoadState('networkidle');
+    await page.click('.project-card:first-child');
+    await page.waitForURL(/\/projects\/\d+/, { timeout: 10000 });
+    await page.click('button:has-text("Milestones")');
+    await page.click('button:has-text("+ New")');
+    await page.waitForSelector('.modal', { timeout: 10000 });
+    await page.fill('.modal input[placeholder*="Milestone title"]', name);
+    await page.click('.modal button:has-text("Create")');
+    await page.waitForTimeout(1000);
+    console.log('✅ Milestone created');
+  };
+
+  test.describe('Propose CRUD Flow', () => {
+    test('create propose -> view -> edit -> list', async ({ page }) => {
+      const TS = Date.now();
+      await login(page);
+      const projectName = `Propose Test Project ${TS}`;
+      await createProject(page, projectName);
+
+      // Navigate to Proposes page
+      await page.goto(`${BASE_URL}/proposes`);
+      await page.waitForLoadState('networkidle');
+
+      // Select project filter
+      await page.selectOption('select', { label: projectName });
+      await page.waitForTimeout(500);
+
+      // Create propose
+      const proposeTitle = `Test Propose ${TS}`;
+      const proposeDesc = `Description for propose ${TS}`;
+
+      await page.click('button:has-text("+ New Propose")');
+      await page.waitForSelector('.modal', { timeout: 10000 });
+
+      await page.fill('.modal input[placeholder*="Propose title"]', proposeTitle);
+      await page.fill('.modal textarea', proposeDesc);
+      await page.click('.modal button:has-text("Create")');
+
+      // Wait for list to update
+      await page.waitForTimeout(1000);
+
+      // Verify in list
+      await expect(page.locator(`.milestone-card:has-text("${proposeTitle}")`)).toBeVisible({ timeout: 10000 });
+
+      // View propose detail
+      await page.click(`.milestone-card:has-text("${proposeTitle}")`);
+      await page.waitForURL(/\/proposes\/\d+/, { timeout: 10000 });
+
+      // Verify detail page
+      await expect(page.locator('h2')).toContainText(proposeTitle);
+      await expect(page.locator('.project-desc')).toContainText(proposeDesc);
+      await expect(page.locator('.badge:has-text("open")')).toBeVisible();
+
+      // Edit propose
+      await page.click('button:has-text("Edit")');
+      await page.waitForSelector('.modal', { timeout: 10000 });
+
+      const newTitle = `${proposeTitle} (edited)`;
+      await page.fill('.modal input', newTitle);
+      await page.click('.modal button:has-text("Save")');
+      await page.waitForTimeout(500);
+
+      // Verify edit
+      await expect(page.locator('h2')).toContainText(newTitle);
+
+      console.log('✅ Propose CRUD test passed');
+    });
+  });
+
+  test.describe('Propose Lifecycle Flow', () => {
+    test('accept propose -> creates feature story task', async ({ page }) => {
+      const TS = Date.now();
+      await login(page);
+      const projectName = `Accept Propose Project ${TS}`;
+      await createProject(page, projectName);
+
+      // Create milestone for accept
+      await createMilestone(page, `Milestone for Accept ${TS}`);
+
+      // Create propose
+      await page.goto(`${BASE_URL}/proposes`);
+      await page.selectOption('select', { label: projectName });
+      await page.waitForTimeout(500);
+
+      const proposeTitle = `Accept Test Propose ${TS}`;
+      await page.click('button:has-text("+ New Propose")');
+      await page.fill('.modal input', proposeTitle);
+      await page.fill('.modal textarea', 'To be accepted');
+      await page.click('.modal button:has-text("Create")');
+      await page.waitForTimeout(1000);
+
+      // Open propose detail
+      await page.click(`.milestone-card:has-text("${proposeTitle}")`);
+      await page.waitForURL(/\/proposes\/\d+/, { timeout: 10000 });
+
+      // Accept propose
+      await page.click('button:has-text("Accept")');
+      await page.waitForSelector('.modal:has-text("Accept Propose")', { timeout: 10000 });
+
+      // Select milestone
+      await page.selectOption('.modal select', { label: `Milestone for Accept ${TS}` });
+      await page.click('.modal button:has-text("Confirm Accept")');
+      await page.waitForTimeout(1000);
+
+      // Verify status changed
+      await expect(page.locator('.badge:has-text("accepted")')).toBeVisible({ timeout: 10000 });
+      await expect(page.locator('.project-meta:has-text("Task:")')).toBeVisible();
+
+      console.log('✅ Propose accept test passed');
+    });
+
+    test('reject propose -> can reopen', async ({ page }) => {
+      const TS = Date.now();
+      await login(page);
+      const projectName = `Reject Propose Project ${TS}`;
+      await createProject(page, projectName);
+
+      // Create propose
+      await page.goto(`${BASE_URL}/proposes`);
+      await page.selectOption('select', { label: projectName });
+      await page.waitForTimeout(500);
+
+      const proposeTitle = `Reject Test Propose ${TS}`;
+      await page.click('button:has-text("+ New Propose")');
+      await page.fill('.modal input', proposeTitle);
+      await page.click('.modal button:has-text("Create")');
+      await page.waitForTimeout(1000);
+
+      // Open propose detail
+      await page.click(`.milestone-card:has-text("${proposeTitle}")`);
+      await page.waitForURL(/\/proposes\/\d+/, { timeout: 10000 });
+
+      // Reject propose
+      await page.click('button:has-text("Reject")');
+      await page.waitForSelector('.modal:has-text("Reject Propose")', { timeout: 10000 });
+      await page.click('.modal button:has-text("Confirm Reject")');
+      await page.waitForTimeout(1000);
+
+      // Verify status changed
+      await expect(page.locator('.badge:has-text("rejected")')).toBeVisible({ timeout: 10000 });
+
+      // Reopen propose
+      await page.click('button:has-text("Reopen")');
+      await page.waitForSelector('.modal:has-text("Reopen Propose")', { timeout: 10000 });
+      await page.click('.modal button:has-text("Confirm Reopen")');
+      await page.waitForTimeout(1000);
+
+      // Verify back to open
+      await expect(page.locator('.badge:has-text("open")')).toBeVisible({ timeout: 10000 });
+
+      console.log('✅ Propose reject/reopen test passed');
+    });
+
+    test('edit button hidden for accepted propose', async ({ page }) => {
+      const TS = Date.now();
+      await login(page);
+      const projectName = `Edit Hidden Project ${TS}`;
+      await createProject(page, projectName);
+      await createMilestone(page, `Milestone ${TS}`);
+
+      // Create and accept propose
+      await page.goto(`${BASE_URL}/proposes`);
+      await page.selectOption('select', { label: projectName });
+      await page.waitForTimeout(500);
+
+      await page.click('button:has-text("+ New Propose")');
+      await page.fill('.modal input', `Accept Test ${TS}`);
+      await page.click('.modal button:has-text("Create")');
+      await page.waitForTimeout(1000);
+
+      await page.click(`.milestone-card:has-text("Accept Test")`);
+      await page.waitForURL(/\/proposes\/\d+/, { timeout: 10000 });
+
+      // Accept
+      await page.click('button:has-text("Accept")');
+      await page.selectOption('.modal select', { index: 0 });
+      await page.click('.modal button:has-text("Confirm Accept")');
+      await page.waitForTimeout(1000);
+
+      // Verify Edit button is hidden
+      await expect(page.locator('button:has-text("Edit")')).not.toBeVisible();
+      await expect(page.locator('.badge:has-text("accepted")')).toBeVisible();
+
+      console.log('✅ Edit button hidden test passed');
+    });
+  });
+
+  test.describe('Propose Permissions', () => {
+    test('cannot create propose without project selection', async ({ page }) => {
+      await login(page);
+      await page.goto(`${BASE_URL}/proposes`);
+      await page.waitForLoadState('networkidle');
+
+      // Button should be disabled
+      const button = page.locator('button:has-text("+ New Propose")');
+      await expect(button).toBeDisabled();
+
+      console.log('✅ Propose create disabled test passed');
+    });
+  });
+});