diff --git a/.jules/palette.md b/.jules/palette.md
index bd0f73248..9bb6397cf 100644
--- a/.jules/palette.md
+++ b/.jules/palette.md
@@ -57,3 +57,6 @@
 ## 2026-07-30 - Add window.confirm for destructive actions
 **Learning:** Destructive actions like deleting groups and edge relationships previously occurred immediately without user confirmation.
 **Action:** Always wrap delete operations with window.confirm() dialogs and ensure corresponding tests successfully mock window.confirm.
+## 2024-05-24 - Fix Keyboard Accessibility on Forms
+**Learning:** Users cannot use the 'Enter' key to submit forms if inputs and action buttons are wrapped in generic `<div>` tags instead of native `<form>` elements with an `onSubmit` handler.
+**Action:** Ensure inputs and their corresponding action buttons are wrapped in native `<form>` tags with an `onSubmit={(e) => e.preventDefault(); ...}` handler and `type="submit"` buttons to provide native keyboard accessibility.
diff --git a/frontend/src/App.nativeFormSubmission.test.tsx b/frontend/src/App.nativeFormSubmission.test.tsx
new file mode 100644
index 000000000..f233eca73
--- /dev/null
+++ b/frontend/src/App.nativeFormSubmission.test.tsx
@@ -0,0 +1,110 @@
+import '@testing-library/jest-dom/vitest'
+import userEvent from '@testing-library/user-event'
+import { cleanup, render, screen, waitFor } from '@testing-library/react'
+import { afterEach, beforeEach, describe, expect, it, vi } from 'vitest'
+
+const api = vi.hoisted(() => ({
+  getMe: vi.fn(),
+  listProjects: vi.fn(),
+  listConnections: vi.fn(),
+  listSnapshots: vi.fn(),
+  createProject: vi.fn(),
+  createConnection: vi.fn(),
+  createSnapshot: vi.fn(),
+  getSnapshot: vi.fn(),
+  createShareLink: vi.fn(),
+}))
+
+vi.mock('./api', () => api)
+
+globalThis.ResizeObserver = class ResizeObserver {
+  observe() {}
+  unobserve() {}
+  disconnect() {}
+}
+
+import App from './App'
+
+beforeEach(() => {
+  vi.clearAllMocks()
+  api.getMe.mockResolvedValue({ subject: 'test-user', display_name: 'Test User' })
+  api.listProjects.mockResolvedValue([
+    { project_space_uuid: 'project-1', project_name: 'Billing' },
+  ])
+  api.listConnections.mockResolvedValue([
+    { db_connection_uuid: 'connection-1', conn_name: 'Warehouse' },
+  ])
+  api.listSnapshots.mockResolvedValue([])
+  api.createProject.mockResolvedValue({
+    project_space_uuid: 'project-created',
+    project_name: 'Keyboard project',
+  })
+  api.createConnection.mockResolvedValue({
+    db_connection_uuid: 'connection-created',
+    conn_name: 'Keyboard DB',
+  })
+  api.createSnapshot.mockResolvedValue({
+    schema_snapshot_uuid: 'snapshot-created',
+    status: 'queued',
+    schema_filter: 'audit',
+  })
+  api.getSnapshot.mockResolvedValue({
+    schema_snapshot_uuid: 'snapshot-created',
+    status: 'succeeded',
+    schema_filter: 'audit',
+    error_message: null,
+    snapshot_json: { relations: [], columns: [], pk_columns: [], fk_edges: [] },
+  })
+  api.createShareLink.mockResolvedValue({ url: 'http://localhost/share/example' })
+})
+
+afterEach(() => {
+  cleanup()
+  vi.restoreAllMocks()
+})
+
+describe('native form keyboard submission', () => {
+  it('submits the sidebar create actions with Enter without duplicate activation', async () => {
+    const user = userEvent.setup()
+    render(<App />)
+    await screen.findByRole('heading', { name: '대시보드' })
+
+    await user.click(screen.getByRole('button', { name: '편집기' }))
+
+    const projectName = await screen.findByLabelText('New project')
+    await user.clear(projectName)
+    await user.type(projectName, 'Keyboard project{Enter}')
+    await waitFor(() => expect(api.createProject).toHaveBeenCalledTimes(1))
+    expect(api.createProject).toHaveBeenCalledWith('Keyboard project')
+
+    await waitFor(() => {
+      expect(api.listConnections).toHaveBeenCalledWith('project-created')
+    })
+
+    const connectionName = screen.getByLabelText('New connection (DSN)')
+    await user.clear(connectionName)
+    await user.type(connectionName, 'Keyboard DB')
+    const dsn = screen.getByLabelText('Connection DSN')
+    await user.clear(dsn)
+    await user.type(dsn, 'postgresql://db.example.test/app{Enter}')
+    await waitFor(() => expect(api.createConnection).toHaveBeenCalledTimes(1))
+
+    const schemaFilter = screen.getByLabelText('Schema filter (optional)')
+    await user.type(schemaFilter, 'audit{Enter}')
+    await waitFor(() => expect(api.createSnapshot).toHaveBeenCalledTimes(1))
+  })
+
+  it('submits the projects-page inline create form with Enter', async () => {
+    const user = userEvent.setup()
+    render(<App />)
+    await screen.findByRole('heading', { name: '대시보드' })
+
+    await user.click(screen.getByRole('button', { name: '프로젝트' }))
+    const projectName = await screen.findByLabelText('새 프로젝트 이름')
+    await user.clear(projectName)
+    await user.type(projectName, 'Keyboard project{Enter}')
+
+    await waitFor(() => expect(api.createProject).toHaveBeenCalledTimes(1))
+    expect(api.createProject).toHaveBeenCalledWith('Keyboard project')
+  })
+})
diff --git a/frontend/src/App.tsx b/frontend/src/App.tsx
index 49812e448..93dc31ed9 100644
--- a/frontend/src/App.tsx
+++ b/frontend/src/App.tsx
@@ -1114,15 +1114,14 @@ export default function App() {
 
         <div className="field">
           <label htmlFor="project-name">New project</label>
-          <div className="row">
+          <form className="row" onSubmit={(e) => { e.preventDefault(); onCreateProject(); }}>
             <input
               id="project-name"
               value={projectName}
               onChange={(e) => setProjectName(e.target.value)}
             />
             <button
-              type="button"
-              onClick={onCreateProject}
+              type="submit"
               disabled={!projectName.trim() || isCreatingProject}
               aria-busy={isCreatingProject}
               aria-describedby={
@@ -1131,7 +1130,7 @@ export default function App() {
             >
               {isCreatingProject ? "Creating…" : "Create"}
             </button>
-          </div>
+          </form>
           {createProjectHint ? (
             <span id="create-project-hint" className="field-hint">
               {createProjectHint}
@@ -1160,7 +1159,7 @@ export default function App() {
           </select>
         </div>
 
-        <div className="field">
+        <form className="field" onSubmit={(e) => { e.preventDefault(); onCreateConnection(); }}>
           <label htmlFor="conn-name">New connection (DSN)</label>
           <input
             id="conn-name"
@@ -1179,8 +1178,7 @@ export default function App() {
             aria-label="Connection DSN"
           />
           <button
-            type="button"
-            onClick={onCreateConnection}
+            type="submit"
             disabled={
               !selectedProjectId ||
               !connName.trim() ||
@@ -1199,9 +1197,9 @@ export default function App() {
               {createConnectionHint}
             </span>
           ) : null}
-        </div>
+        </form>
 
-        <div className="field">
+        <form className="field" onSubmit={(e) => { e.preventDefault(); onCreateSnapshot(); }}>
           <label htmlFor="schema-filter">Schema filter (optional)</label>
           <input
             id="schema-filter"
@@ -1209,19 +1207,18 @@ export default function App() {
             onChange={(e) => setSchemaFilter(e.target.value)}
             placeholder="public"
           />
-        </div>
-
-        <button
-          type="button"
-          onClick={onCreateSnapshot}
-          disabled={!selectedProjectId || !selectedConnId || isCreatingSnapshot}
-          aria-busy={isCreatingSnapshot}
-          aria-describedby={
-            createSnapshotHint ? "create-snapshot-hint" : undefined
-          }
-        >
-          {isCreatingSnapshot ? "Starting…" : "Reverse engineer → snapshot"}
-        </button>
+          <button
+            type="submit"
+            disabled={!selectedProjectId || !selectedConnId || isCreatingSnapshot}
+            aria-busy={isCreatingSnapshot}
+            aria-describedby={
+              createSnapshotHint ? "create-snapshot-hint" : undefined
+            }
+            style={{ marginTop: 12 }}
+          >
+            {isCreatingSnapshot ? "Starting…" : "Reverse engineer → snapshot"}
+          </button>
+        </form>
         {createSnapshotHint ? (
           <span id="create-snapshot-hint" className="field-hint">
             {createSnapshotHint}
@@ -1343,20 +1340,19 @@ export default function App() {
                 <h1 id="projects-title">프로젝트</h1>
                 <p>프로젝트를 선택하면 해당 다이어그램 목록을 볼 수 있습니다.</p>
               </div>
-              <div className="inlineCreate">
+              <form className="inlineCreate" onSubmit={(e) => { e.preventDefault(); onCreateProject(); }}>
                 <input
                   aria-label="새 프로젝트 이름"
                   value={projectName}
                   onChange={(event) => setProjectName(event.currentTarget.value)}
                 />
                 <button
-                  type="button"
-                  onClick={onCreateProject}
+                  type="submit"
                   disabled={!projectName.trim() || isCreatingProject}
                 >
                   {isCreatingProject ? "생성 중" : "새 프로젝트"}
                 </button>
-              </div>
+              </form>
             </div>
             <div className="dataTable" role="table" aria-label="프로젝트 목록">
               <div className="dataTable__row dataTable__row--projects dataTable__row--head" role="row">