diff --git a/scripts/check-gui-render.mjs b/scripts/check-gui-render.mjs
index 95dc6b9..3eec169 100755
--- a/scripts/check-gui-render.mjs
+++ b/scripts/check-gui-render.mjs
@@ -13,7 +13,7 @@ const OUT_DIR = process.env.GUI_SMOKE_OUT || path.join(os.tmpdir(), 'verstak-gui
 const CHROMIUM = process.env.CHROMIUM_BIN || findChromium()
 const HOST = '127.0.0.1'
 
-const flowUnderTest = 'app loads -> first meaningful screen renders -> primary visible controls respond without runtime errors.'
+const flowUnderTest = 'app loads -> first meaningful screen renders -> primary visible controls respond and mutate UI state without runtime errors.'
 
 if (!CHROMIUM) {
   fail('Chromium executable not found. Set CHROMIUM_BIN or install chromium.')
@@ -138,6 +138,11 @@ async function runReadyScenario(cdp, url) {
 
   await clickText(cdp, '.tab', 'Заметки')
   await assertText(cdp, 'Smoke note', 'notes: existing note visible')
+  await clickText(cdp, '.btn', '+ Добавить заметку')
+  await waitForSelector(cdp, '.create-form input[type="text"]')
+  await setInputValue(cdp, '.create-form input[type="text"]', 'GUI smoke note')
+  await clickText(cdp, '.create-form .btn', 'Создать')
+  await assertText(cdp, 'GUI smoke note', 'notes: created note appears')
 
   await clickText(cdp, '.tab', 'Файлы')
   await waitForSelector(cdp, '.file-row')
@@ -146,12 +151,21 @@ async function runReadyScenario(cdp, url) {
   await waitForSelector(cdp, '.back-btn')
   await assertEval(cdp, `document.querySelector('.back-btn')?.innerText.trim() === 'Назад'`, 'files: back button has one textual label')
   await screenshot(cdp, 'files-folder.png')
+  await click(cdp, '.back-btn')
+  await assertText(cdp, 'brief.md', 'files: back button returns to parent folder')
 
   await clickText(cdp, '.tab', 'Действия')
   await assertText(cdp, 'Deploy smoke', 'actions: action card visible')
 
   await clickText(cdp, '.tab', 'Журнал')
   await assertText(cdp, 'Manual smoke entry', 'worklog: entry visible')
+  await clickText(cdp, '.worklog-toolbar .btn', 'Добавить запись')
+  await waitForSelector(cdp, '.modal-worklog')
+  await setInputValue(cdp, '.modal-worklog input[type="text"]', 'GUI smoke worklog')
+  await setInputValue(cdp, '.modal-worklog input[type="number"]', '15')
+  await clickText(cdp, '.modal-worklog .btn', 'Сохранить')
+  await waitForGone(cdp, '.modal-worklog')
+  await assertText(cdp, 'GUI smoke worklog', 'worklog: created entry appears')
 
   await clickText(cdp, '.tab', 'Активность')
   await assertText(cdp, 'Smoke activity', 'activity: per-node activity visible')
@@ -173,9 +187,12 @@ async function runReadyScenario(cdp, url) {
   await click(cdp, '.nav-add-btn')
   await waitForSelector(cdp, '.modal-create')
   await assertText(cdp, 'Создать элемент', 'create node: modal opens')
+  await clickText(cdp, '.template-card', 'Пустое дело')
+  await setInputValue(cdp, '.modal-create input[type="text"]', 'GUI Smoke Created')
   await screenshot(cdp, 'create-node-modal.png')
-  await clickText(cdp, '.modal-actions .btn', 'Отмена')
+  await clickText(cdp, '.modal-actions .btn', 'Создать')
   await waitForGone(cdp, '.modal-create')
+  await assertText(cdp, 'GUI Smoke Created', 'create node: created node appears')
 
   await setViewport(cdp, 390, 844)
   await navigate(cdp, url)
@@ -263,6 +280,22 @@ async function clickText(cdp, selector, text) {
   await sleep(200)
 }
 
+async function setInputValue(cdp, selector, value) {
+  const ok = await evalValue(cdp, `
+    (() => {
+      const el = document.querySelector(${JSON.stringify(selector)});
+      if (!el) return false;
+      el.focus();
+      el.value = ${JSON.stringify(value)};
+      el.dispatchEvent(new Event('input', { bubbles: true }));
+      el.dispatchEvent(new Event('change', { bubbles: true }));
+      return true;
+    })()
+  `)
+  if (!ok) throw new Error(`Input target not found: ${selector}`)
+  await sleep(100)
+}
+
 async function clickFolderOpenButton(cdp, name) {
   const ok = await evalValue(cdp, `
     (() => {