diff --git a/packages/next-codemod/lib/__tests__/upgrade-non-interactive.test.js b/packages/next-codemod/lib/__tests__/upgrade-non-interactive.test.js
new file mode 100644
index 00000000..54ca42d2
--- /dev/null
+++ b/packages/next-codemod/lib/__tests__/upgrade-non-interactive.test.js
@@ -0,0 +1,277 @@
+/* global jest */
+
+jest.autoMockOff()
+
+const fs = require('fs')
+const os = require('os')
+const path = require('path')
+const { spawnSync } = require('child_process')
+
+const codemodRoot = path.resolve(__dirname, '../..')
+const tsx = path.resolve(codemodRoot, '../../node_modules/.bin/tsx')
+const projects = []
+
+// The verifier setup builds the base revision before applying a candidate patch.
+// Run a source snapshot of the current package so tests see candidate changes
+// instead of stale generated JavaScript while still reusing the prebuilt
+// transforms. Copy the whole package rather than assuming that an implementation
+// must live in bin/ and lib/: a CLI may legitimately import a new source folder,
+// a JavaScript-only helper, or package metadata added by the candidate.
+function createSourceCli() {
+  const root = fs.mkdtempSync(path.join(os.tmpdir(), 'next-codemod-cli-'))
+  projects.push(root)
+
+  const sourceFile = (file) => {
+    const relative = path.relative(codemodRoot, file)
+    const topLevel = relative.split(path.sep)[0]
+    if (topLevel === 'node_modules' || topLevel === 'transforms') return false
+
+    // Ignore a generated artifact only when its source sibling exists. This
+    // keeps candidate-authored JavaScript modules while ensuring tsx loads a
+    // changed TypeScript source file instead of JavaScript built from HEAD.
+    const sourceBase = file.replace(/(?:\.js(?:\.map)?|\.d\.ts(?:\.map)?)$/, '')
+    if (sourceBase !== file) {
+      if (fs.existsSync(`${sourceBase}.ts`)) return false
+      if (fs.existsSync(`${sourceBase}.tsx`)) return false
+    }
+    return true
+  }
+  fs.cpSync(codemodRoot, root, { recursive: true, filter: sourceFile })
+
+  for (const entry of ['node_modules', 'transforms']) {
+    fs.symlinkSync(
+      path.join(codemodRoot, entry),
+      path.join(root, entry),
+      'dir'
+    )
+  }
+
+  return path.join(root, 'bin', 'next-codemod.ts')
+}
+
+function writeJson(file, value) {
+  fs.mkdirSync(path.dirname(file), { recursive: true })
+  fs.writeFileSync(file, JSON.stringify(value, null, 2))
+}
+
+function createProject({
+  installedNext,
+  installedReact,
+  targetNext,
+  targetReact,
+  devScript,
+  pages = false,
+}) {
+  const dir = fs.mkdtempSync(path.join(os.tmpdir(), 'next-codemod-upgrade-'))
+  projects.push(dir)
+
+  writeJson(path.join(dir, 'package.json'), {
+    private: true,
+    scripts: { dev: devScript },
+    dependencies: {
+      next: installedNext,
+      react: installedReact,
+      'react-dom': installedReact,
+    },
+  })
+  writeJson(path.join(dir, 'package-lock.json'), {})
+  for (const dependency of ['next', 'react', 'react-dom']) {
+    writeJson(path.join(dir, 'node_modules', dependency, 'package.json'), {
+      name: dependency,
+      version: dependency === 'next' ? installedNext : installedReact,
+    })
+  }
+  if (pages) {
+    fs.mkdirSync(path.join(dir, 'pages'), { recursive: true })
+    fs.writeFileSync(
+      path.join(dir, 'pages', 'index.js'),
+      'export default () => null\n'
+    )
+  }
+
+  const fakeBin = path.join(dir, 'fake-bin')
+  fs.mkdirSync(fakeBin)
+  const npm = `#!/usr/bin/env node
+const fs = require('fs')
+const args = process.argv.slice(2)
+const query = args.find((arg) => arg.includes('@')) || ''
+if (args.includes('view')) {
+  if (query.startsWith('next@') && args.includes('version')) {
+    console.log(JSON.stringify(process.env.TEST_TARGET_NEXT))
+  } else if (query.startsWith('next@')) {
+    console.log(JSON.stringify({ version: process.env.TEST_TARGET_NEXT, peerDependencies: { react: process.env.TEST_REACT_RANGE } }))
+  } else {
+    console.log(JSON.stringify(process.env.TEST_TARGET_REACT))
+  }
+} else {
+  fs.appendFileSync(process.env.TEST_COMMAND_LOG, 'npm ' + args.join(' ') + '\\n')
+}
+`
+  const npx = `#!/usr/bin/env node
+require('fs').appendFileSync(process.env.TEST_COMMAND_LOG, 'npx ' + process.argv.slice(2).join(' ') + '\\n')
+`
+  for (const [name, contents] of [
+    ['npm', npm],
+    ['npx', npx],
+  ]) {
+    const file = path.join(fakeBin, name)
+    fs.writeFileSync(file, contents)
+    fs.chmodSync(file, 0o755)
+  }
+
+  return {
+    dir,
+    cli: createSourceCli(),
+    commandLog: path.join(dir, 'commands.log'),
+    env: {
+      ...process.env,
+      PATH: `${fakeBin}${path.delimiter}${process.env.PATH}`,
+      TEST_TARGET_NEXT: targetNext,
+      TEST_TARGET_REACT: targetReact,
+      TEST_REACT_RANGE: `^${targetReact}`,
+      TEST_COMMAND_LOG: path.join(dir, 'commands.log'),
+      FORCE_COLOR: '0',
+    },
+  }
+}
+
+function runUpgrade(project, args, { tty = false, input } = {}) {
+  if (!tty) {
+    return spawnSync(tsx, [project.cli, 'upgrade', ...args], {
+      cwd: project.dir,
+      env: project.env,
+      encoding: 'utf8',
+      timeout: 15_000,
+    })
+  }
+
+  const quote = (value) => `'${value.replaceAll("'", "'\\''")}'`
+  const command = [tsx, project.cli, 'upgrade', ...args].map(quote).join(' ')
+  return spawnSync('script', ['-q', '-e', '-c', command, '/dev/null'], {
+    cwd: project.dir,
+    env: project.env,
+    encoding: 'utf8',
+    timeout: 15_000,
+    input,
+  })
+}
+
+function outputOf(result) {
+  return `${result.stdout || ''}\n${result.stderr || ''}`
+}
+
+afterEach(() => {
+  while (projects.length) {
+    fs.rmSync(projects.pop(), { recursive: true, force: true })
+  }
+})
+
+test('upgrade help exposes both non-interactive option spellings', () => {
+  const cli = createSourceCli()
+  const result = spawnSync(tsx, [cli, 'upgrade', '--help'], {
+    encoding: 'utf8',
+    timeout: 15_000,
+  })
+
+  expect(result.status).toBe(0)
+  expect(outputOf(result)).toMatch(/-y, --yes\b/)
+})
+
+test('TTY use without --yes remains interactive', () => {
+  const project = createProject({
+    installedNext: '15.0.0-canary.90',
+    installedReact: '19.0.0',
+    targetNext: '15.0.0-canary.100',
+    targetReact: '19.0.0',
+    devScript: 'next dev',
+  })
+
+  // Reject the default Turbopack suggestion. A command that incorrectly forces
+  // non-interactive defaults would update this script instead.
+  const result = runUpgrade(project, ['15.0.0-canary.100'], {
+    tty: true,
+    input: 'n\n',
+  })
+  expect(outputOf(result)).toContain('Enable Turbopack')
+  expect(result.status).toBe(0)
+
+  const manifest = JSON.parse(
+    fs.readFileSync(path.join(project.dir, 'package.json'), 'utf8')
+  )
+  expect(manifest.scripts.dev).toBe('next dev')
+})
+
+test('--yes accepts prompt defaults even when the command has a TTY', () => {
+  const project = createProject({
+    installedNext: '15.0.0-canary.90',
+    installedReact: '18.2.0',
+    targetNext: '15.0.0-canary.100',
+    targetReact: '19.0.0',
+    devScript: 'next dev',
+    pages: true,
+  })
+
+  const result = runUpgrade(project, ['15.0.0-canary.100', '--yes'], {
+    tty: true,
+  })
+  expect(result.status).toBe(0)
+
+  const manifest = JSON.parse(
+    fs.readFileSync(path.join(project.dir, 'package.json'), 'utf8')
+  )
+  expect(manifest.scripts.dev).toContain('next dev --turbo')
+  expect(manifest.dependencies.next).toBe('15.0.0-canary.100')
+  expect(manifest.dependencies.react).toBe('19.0.0')
+  expect(manifest.dependencies['react-dom']).toBe('19.0.0')
+
+  const commands = fs.readFileSync(project.commandLog, 'utf8')
+  expect(commands).toContain('react/19/migration-recipe')
+  expect(commands).toContain('types-react-codemod@latest')
+})
+
+test('piped stdin automatically leaves an unrecognized custom dev script unchanged', () => {
+  const devScript = 'node scripts/start-development.js --inspect'
+  const project = createProject({
+    installedNext: '15.0.0-canary.90',
+    installedReact: '19.0.0',
+    targetNext: '15.0.0-canary.100',
+    targetReact: '19.0.0',
+    devScript,
+  })
+
+  const result = runUpgrade(project, ['15.0.0-canary.100'])
+  expect(result.status).toBe(0)
+  const manifest = JSON.parse(
+    fs.readFileSync(path.join(project.dir, 'package.json'), 'utf8')
+  )
+  expect(manifest.scripts.dev).toBe(devScript)
+  expect(manifest.dependencies.next).toBe('15.0.0-canary.100')
+})
+
+test('piped stdin applies every recommended Next.js codemod', () => {
+  const project = createProject({
+    installedNext: '13.5.0',
+    installedReact: '18.2.0',
+    targetNext: '14.2.0',
+    targetReact: '18.3.1',
+    devScript: 'next dev',
+  })
+  const page = path.join(project.dir, 'app', 'page.tsx')
+  fs.mkdirSync(path.dirname(page), { recursive: true })
+  fs.writeFileSync(
+    page,
+    `import { ImageResponse } from 'next/server'\n\nexport const metadata = {\n  title: 'Keep this title',\n  viewport: { width: 'device-width' },\n  themeColor: 'black',\n}\n\nexport default function Page() { return null }\n`
+  )
+
+  const result = runUpgrade(project, ['14.2.0'])
+  expect(result.status).toBe(0)
+
+  const output = outputOf(result)
+  expect(output).toContain('metadata-to-viewport-export')
+  expect(output).toContain('next-og-import')
+
+  const transformed = fs.readFileSync(page, 'utf8')
+  expect(transformed).toMatch(/from ['"]next\/og['"]/)
+  expect(transformed).toContain('export const viewport')
+  expect(transformed).toContain("title: 'Keep this title'")
+})