diff --git a/packages/stream_cast/seed/scripts/audience_pulse.lua b/packages/stream_cast/seed/scripts/audience_pulse.lua
new file mode 100644
index 000000000..3bec8cbf1
--- /dev/null
+++ b/packages/stream_cast/seed/scripts/audience_pulse.lua
@@ -0,0 +1,24 @@
+local M = {}
+
+function M.score(metrics)
+  local messages = metrics.messagesPerMinute or 0
+  local reactions = metrics.reactionsPerMinute or 0
+  local viewers = metrics.viewers or 1
+
+  local raw = (messages * 0.6) + (reactions * 0.4)
+  local score = (raw / viewers) * 100
+
+  local tier = "steady"
+  if score >= 80 then
+    tier = "surging"
+  elseif score <= 30 then
+    tier = "cooling"
+  end
+
+  return {
+    score = score,
+    tier = tier
+  }
+end
+
+return M
diff --git a/tools/validate-codegen-export.ts b/tools/validate-codegen-export.ts
new file mode 100644
index 000000000..fe49177e6
--- /dev/null
+++ b/tools/validate-codegen-export.ts
@@ -0,0 +1,49 @@
+#!/usr/bin/env tsx
+
+import { mkdir, writeFile } from 'node:fs/promises'
+import { fileURLToPath } from 'node:url'
+
+import JSZip from 'jszip'
+
+import { generateCodegenZip } from '../frontends/nextjs/src/lib/codegen/generate-codegen-zip'
+
+const spec = {
+  projectName: 'neon-arcade-export',
+  packageId: 'arcade_lobby',
+  runtime: 'desktop',
+  tone: 'neon',
+  brief: 'Validates the Codegen Studio bundle outputs.',
+}
+
+const rootDir = spec.projectName.replace(/[^a-z0-9-]/gi, '-').toLowerCase()
+const outputDir = fileURLToPath(new URL('../.tmp', import.meta.url))
+const outputFile = `${outputDir}/${spec.projectName}.zip`
+
+const assertZipContains = async (zipBuffer: Buffer) => {
+  const zip = await JSZip.loadAsync(zipBuffer)
+  const paths = [
+    `${rootDir}/README.md`,
+    `${rootDir}/src/app/page.tsx`,
+    `${rootDir}/cli/main.cpp`,
+    `${rootDir}/spec.json`,
+  ]
+
+  for (const entry of paths) {
+    if (!zip.file(entry)) {
+      throw new Error(`Missing expected entry ${entry}`)
+    }
+  }
+}
+
+const run = async () => {
+  await mkdir(outputDir, { recursive: true })
+  const { zipBuffer } = await generateCodegenZip(spec)
+  await assertZipContains(zipBuffer)
+  await writeFile(outputFile, zipBuffer)
+  console.log('Codegen export validated at', outputFile)
+}
+
+run().catch((error) => {
+  console.error('Codegen export validation failed:', error)
+  process.exit(1)
+})