diff --git a/.github/workflows/setup-repo-tests.yml b/.github/workflows/setup-repo-tests.yml
index 714a6f5..2222d0f 100644
--- a/.github/workflows/setup-repo-tests.yml
+++ b/.github/workflows/setup-repo-tests.yml
@@ -30,4 +30,5 @@ jobs:
         run: |
           bash tests/setup-repo/test-python-assets.sh
           bash tests/setup-repo/test-ci-assets.sh
+          bash tests/setup-repo/test-node-assets.sh
           bash tests/setup-repo/test-scaffold.sh
diff --git a/plugins/core/.claude-plugin/plugin.json b/plugins/core/.claude-plugin/plugin.json
index bf7aa0a..68f07ce 100644
--- a/plugins/core/.claude-plugin/plugin.json
+++ b/plugins/core/.claude-plugin/plugin.json
@@ -1,6 +1,6 @@
 {
   "name": "core",
-  "version": "0.3.0",
+  "version": "0.4.0",
   "description": "Core Offworld Labs skills, commands, agents, and hooks shared across all repos.",
   "author": {
     "name": "Offworld Labs"
diff --git a/plugins/core/skills/setup-repo/SKILL.md b/plugins/core/skills/setup-repo/SKILL.md
index 4bc3bc4..df217ae 100644
--- a/plugins/core/skills/setup-repo/SKILL.md
+++ b/plugins/core/skills/setup-repo/SKILL.md
@@ -18,22 +18,26 @@ interactive parts and the report.
    (`git rev-parse --is-inside-work-tree`). If it is not, offer to run
    `git init`; abort if the user declines.
 
-2. **Determine the stack.** Detect from existing files: `pyproject.toml` or
-   `requirements*.txt` → `python`. If ambiguous or empty, ask the user to choose
-   `python` or `none` (ts-frontend / ts-backend arrive in a later phase).
+2. **Determine the stack.** Detect from existing files: `pyproject.toml` /
+   `requirements*.txt` → `python`; `package.json` / `tsconfig.json` → TypeScript
+   (then ask whether it's `ts-frontend` — a React/Vite app — or `ts-backend` — a
+   Node service). If ambiguous or empty, ask the user to choose `python`,
+   `ts-frontend`, `ts-backend`, or `none`.
 
 3. **Scaffold the files.** Run the engine, which never overwrites existing files:
    `bash "$ENGINE" . <stack>`
    Relay its `WRITTEN` / `SKIPPED` output to the user.
 
-4. **Install dependencies.** For `python`, use `uv` (the org standard, a fast
-   drop-in for pip that reads the same `requirements.txt`): create a venv and
-   install with
-   `uv venv && uv pip install -r requirements.txt -r requirements-dev.txt`.
-   If `uv` isn't installed, fall back to
-   `pip install -r requirements.txt -r requirements-dev.txt` in an active
-   virtualenv. Report the command and result; if the toolchain is unavailable,
-   skip and note it rather than failing.
+4. **Install dependencies.**
+   - **Python:** use `uv` (the org standard, a fast drop-in for pip that reads the
+     same `requirements.txt`): `uv venv && uv pip install -r requirements.txt -r requirements-dev.txt`.
+     Fall back to `pip install -r requirements.txt -r requirements-dev.txt` in an
+     active virtualenv if `uv` is absent.
+   - **ts-frontend / ts-backend:** run `npm install` (this generates
+     `package-lock.json` — remind the user to commit it, since the CI workflow uses
+     `npm ci`).
+   Report the command and result; if the toolchain is unavailable, skip and note it
+   rather than failing.
 
 5. **Flesh out CLAUDE.md.** The stub was just written. Ask the user for a
    one-or-two-line description of what this repo does, then fill in the
diff --git a/plugins/core/skills/setup-repo/assets/ci/ci-node.yml b/plugins/core/skills/setup-repo/assets/ci/ci-node.yml
new file mode 100644
index 0000000..67ff7ff
--- /dev/null
+++ b/plugins/core/skills/setup-repo/assets/ci/ci-node.yml
@@ -0,0 +1,31 @@
+name: CI
+
+on:
+  push:
+    branches: [main]
+  pull_request:
+
+jobs:
+  lint-and-test:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Set up Node
+        uses: actions/setup-node@v4
+        with:
+          node-version: "20"
+          cache: npm
+
+      - name: Install dependencies
+        run: npm ci
+
+      - name: Typecheck
+        run: npm run typecheck
+
+      - name: Lint
+        run: npm run lint
+
+      - name: Test
+        run: npm test
diff --git a/plugins/core/skills/setup-repo/assets/stack/ts-backend/eslint.config.js b/plugins/core/skills/setup-repo/assets/stack/ts-backend/eslint.config.js
new file mode 100644
index 0000000..321fe3b
--- /dev/null
+++ b/plugins/core/skills/setup-repo/assets/stack/ts-backend/eslint.config.js
@@ -0,0 +1,8 @@
+import js from "@eslint/js";
+import tseslint from "typescript-eslint";
+
+export default tseslint.config(
+  { ignores: ["dist", "node_modules"] },
+  js.configs.recommended,
+  ...tseslint.configs.recommended,
+);
diff --git a/plugins/core/skills/setup-repo/assets/stack/ts-backend/gitignore b/plugins/core/skills/setup-repo/assets/stack/ts-backend/gitignore
new file mode 100644
index 0000000..ea9ae58
--- /dev/null
+++ b/plugins/core/skills/setup-repo/assets/stack/ts-backend/gitignore
@@ -0,0 +1,6 @@
+node_modules/
+dist/
+coverage/
+*.log
+.env
+.DS_Store
diff --git a/plugins/core/skills/setup-repo/assets/stack/ts-backend/package.json b/plugins/core/skills/setup-repo/assets/stack/ts-backend/package.json
new file mode 100644
index 0000000..4beb7bc
--- /dev/null
+++ b/plugins/core/skills/setup-repo/assets/stack/ts-backend/package.json
@@ -0,0 +1,22 @@
+{
+  "name": "service",
+  "private": true,
+  "version": "0.0.0",
+  "type": "module",
+  "scripts": {
+    "dev": "tsx watch src/index.ts",
+    "build": "tsc",
+    "typecheck": "tsc --noEmit",
+    "lint": "eslint .",
+    "test": "vitest run"
+  },
+  "devDependencies": {
+    "@eslint/js": "^9.9.0",
+    "@types/node": "^22.5.0",
+    "eslint": "^9.9.0",
+    "tsx": "^4.19.0",
+    "typescript": "^5.6.2",
+    "typescript-eslint": "^8.3.0",
+    "vitest": "^4.1.4"
+  }
+}
diff --git a/plugins/core/skills/setup-repo/assets/stack/ts-backend/src/index.test.ts b/plugins/core/skills/setup-repo/assets/stack/ts-backend/src/index.test.ts
new file mode 100644
index 0000000..667672e
--- /dev/null
+++ b/plugins/core/skills/setup-repo/assets/stack/ts-backend/src/index.test.ts
@@ -0,0 +1,6 @@
+import { expect, test } from "vitest";
+import { version } from "./index";
+
+test("version returns the placeholder", () => {
+  expect(version()).toBe("0.0.0");
+});
diff --git a/plugins/core/skills/setup-repo/assets/stack/ts-backend/src/index.ts b/plugins/core/skills/setup-repo/assets/stack/ts-backend/src/index.ts
new file mode 100644
index 0000000..38f18c1
--- /dev/null
+++ b/plugins/core/skills/setup-repo/assets/stack/ts-backend/src/index.ts
@@ -0,0 +1,3 @@
+export function version(): string {
+  return "0.0.0";
+}
diff --git a/plugins/core/skills/setup-repo/assets/stack/ts-backend/tsconfig.json b/plugins/core/skills/setup-repo/assets/stack/ts-backend/tsconfig.json
new file mode 100644
index 0000000..c5ee29b
--- /dev/null
+++ b/plugins/core/skills/setup-repo/assets/stack/ts-backend/tsconfig.json
@@ -0,0 +1,18 @@
+{
+  "compilerOptions": {
+    "target": "ES2022",
+    "lib": ["ES2022"],
+    "module": "ESNext",
+    "moduleResolution": "bundler",
+    "strict": true,
+    "noUnusedLocals": true,
+    "noUnusedParameters": true,
+    "noEmit": true,
+    "skipLibCheck": true,
+    "esModuleInterop": true,
+    "resolveJsonModule": true,
+    "isolatedModules": true,
+    "types": ["node", "vitest/globals"]
+  },
+  "include": ["src"]
+}
diff --git a/plugins/core/skills/setup-repo/assets/stack/ts-backend/vitest.config.ts b/plugins/core/skills/setup-repo/assets/stack/ts-backend/vitest.config.ts
new file mode 100644
index 0000000..c55c5cc
--- /dev/null
+++ b/plugins/core/skills/setup-repo/assets/stack/ts-backend/vitest.config.ts
@@ -0,0 +1,8 @@
+import { defineConfig } from "vitest/config";
+
+export default defineConfig({
+  test: {
+    environment: "node",
+    globals: true,
+  },
+});
diff --git a/plugins/core/skills/setup-repo/assets/stack/ts-frontend/eslint.config.js b/plugins/core/skills/setup-repo/assets/stack/ts-frontend/eslint.config.js
new file mode 100644
index 0000000..40b03ce
--- /dev/null
+++ b/plugins/core/skills/setup-repo/assets/stack/ts-frontend/eslint.config.js
@@ -0,0 +1,14 @@
+import js from "@eslint/js";
+import tseslint from "typescript-eslint";
+import reactHooks from "eslint-plugin-react-hooks";
+
+export default tseslint.config(
+  { ignores: ["dist", "node_modules"] },
+  js.configs.recommended,
+  ...tseslint.configs.recommended,
+  {
+    files: ["**/*.{ts,tsx}"],
+    plugins: { "react-hooks": reactHooks },
+    rules: { ...reactHooks.configs.recommended.rules },
+  },
+);
diff --git a/plugins/core/skills/setup-repo/assets/stack/ts-frontend/gitignore b/plugins/core/skills/setup-repo/assets/stack/ts-frontend/gitignore
new file mode 100644
index 0000000..ea9ae58
--- /dev/null
+++ b/plugins/core/skills/setup-repo/assets/stack/ts-frontend/gitignore
@@ -0,0 +1,6 @@
+node_modules/
+dist/
+coverage/
+*.log
+.env
+.DS_Store
diff --git a/plugins/core/skills/setup-repo/assets/stack/ts-frontend/index.html b/plugins/core/skills/setup-repo/assets/stack/ts-frontend/index.html
new file mode 100644
index 0000000..9aefcae
--- /dev/null
+++ b/plugins/core/skills/setup-repo/assets/stack/ts-frontend/index.html
@@ -0,0 +1,12 @@
+<!doctype html>
+<html lang="en">
+  <head>
+    <meta charset="UTF-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
+    <title>App</title>
+  </head>
+  <body>
+    <div id="root"></div>
+    <script type="module" src="/src/main.tsx"></script>
+  </body>
+</html>
diff --git a/plugins/core/skills/setup-repo/assets/stack/ts-frontend/package.json b/plugins/core/skills/setup-repo/assets/stack/ts-frontend/package.json
new file mode 100644
index 0000000..a4ddf95
--- /dev/null
+++ b/plugins/core/skills/setup-repo/assets/stack/ts-frontend/package.json
@@ -0,0 +1,31 @@
+{
+  "name": "app",
+  "private": true,
+  "version": "0.0.0",
+  "type": "module",
+  "scripts": {
+    "dev": "vite",
+    "build": "tsc --noEmit && vite build",
+    "typecheck": "tsc --noEmit",
+    "lint": "eslint .",
+    "test": "vitest run"
+  },
+  "dependencies": {
+    "react": "^18.3.1",
+    "react-dom": "^18.3.1"
+  },
+  "devDependencies": {
+    "@eslint/js": "^9.9.0",
+    "@testing-library/react": "^16.0.0",
+    "@types/react": "^18.3.3",
+    "@types/react-dom": "^18.3.0",
+    "@vitejs/plugin-react": "^4.3.1",
+    "eslint": "^9.9.0",
+    "eslint-plugin-react-hooks": "^5.1.0",
+    "jsdom": "^25.0.0",
+    "typescript": "^5.6.2",
+    "typescript-eslint": "^8.3.0",
+    "vite": "^5.4.2",
+    "vitest": "^4.1.4"
+  }
+}
diff --git a/plugins/core/skills/setup-repo/assets/stack/ts-frontend/src/index.test.ts b/plugins/core/skills/setup-repo/assets/stack/ts-frontend/src/index.test.ts
new file mode 100644
index 0000000..667672e
--- /dev/null
+++ b/plugins/core/skills/setup-repo/assets/stack/ts-frontend/src/index.test.ts
@@ -0,0 +1,6 @@
+import { expect, test } from "vitest";
+import { version } from "./index";
+
+test("version returns the placeholder", () => {
+  expect(version()).toBe("0.0.0");
+});
diff --git a/plugins/core/skills/setup-repo/assets/stack/ts-frontend/src/index.ts b/plugins/core/skills/setup-repo/assets/stack/ts-frontend/src/index.ts
new file mode 100644
index 0000000..38f18c1
--- /dev/null
+++ b/plugins/core/skills/setup-repo/assets/stack/ts-frontend/src/index.ts
@@ -0,0 +1,3 @@
+export function version(): string {
+  return "0.0.0";
+}
diff --git a/plugins/core/skills/setup-repo/assets/stack/ts-frontend/src/main.tsx b/plugins/core/skills/setup-repo/assets/stack/ts-frontend/src/main.tsx
new file mode 100644
index 0000000..71c0386
--- /dev/null
+++ b/plugins/core/skills/setup-repo/assets/stack/ts-frontend/src/main.tsx
@@ -0,0 +1,11 @@
+import { StrictMode } from "react";
+import { createRoot } from "react-dom/client";
+
+const root = document.getElementById("root");
+if (root) {
+  createRoot(root).render(
+    <StrictMode>
+      <h1>App</h1>
+    </StrictMode>,
+  );
+}
diff --git a/plugins/core/skills/setup-repo/assets/stack/ts-frontend/tsconfig.json b/plugins/core/skills/setup-repo/assets/stack/ts-frontend/tsconfig.json
new file mode 100644
index 0000000..b9a257d
--- /dev/null
+++ b/plugins/core/skills/setup-repo/assets/stack/ts-frontend/tsconfig.json
@@ -0,0 +1,20 @@
+{
+  "compilerOptions": {
+    "target": "ES2022",
+    "useDefineForClassFields": true,
+    "lib": ["ES2022", "DOM", "DOM.Iterable"],
+    "module": "ESNext",
+    "moduleResolution": "bundler",
+    "jsx": "react-jsx",
+    "strict": true,
+    "noUnusedLocals": true,
+    "noUnusedParameters": true,
+    "noEmit": true,
+    "skipLibCheck": true,
+    "esModuleInterop": true,
+    "resolveJsonModule": true,
+    "isolatedModules": true,
+    "types": ["vitest/globals"]
+  },
+  "include": ["src"]
+}
diff --git a/plugins/core/skills/setup-repo/assets/stack/ts-frontend/vite.config.ts b/plugins/core/skills/setup-repo/assets/stack/ts-frontend/vite.config.ts
new file mode 100644
index 0000000..ed6088b
--- /dev/null
+++ b/plugins/core/skills/setup-repo/assets/stack/ts-frontend/vite.config.ts
@@ -0,0 +1,10 @@
+import { defineConfig } from "vitest/config";
+import react from "@vitejs/plugin-react";
+
+export default defineConfig({
+  plugins: [react()],
+  test: {
+    environment: "jsdom",
+    globals: true,
+  },
+});
diff --git a/plugins/core/skills/setup-repo/scripts/scaffold-repo.sh b/plugins/core/skills/setup-repo/scripts/scaffold-repo.sh
index f0c7452..a96594f 100755
--- a/plugins/core/skills/setup-repo/scripts/scaffold-repo.sh
+++ b/plugins/core/skills/setup-repo/scripts/scaffold-repo.sh
@@ -2,7 +2,7 @@
 # Deterministic file-scaffolding engine for the core:setup-repo skill.
 # Copies bundled assets into a target repo without clobbering existing files.
 # Usage: scaffold-repo.sh <target_dir> <stack>
-#   <stack>: python | none   (ts-frontend / ts-backend land in Phase 2)
+#   <stack>: python | ts-frontend | ts-backend | none
 set -euo pipefail
 
 TARGET="${1:?target dir required}"
@@ -10,7 +10,7 @@ STACK="${2:-none}"
 ASSETS="$(cd "$(dirname "${BASH_SOURCE[0]}")/../assets" && pwd)"
 
 case "$STACK" in
-  python|none) ;;
+  python|ts-frontend|ts-backend|none) ;;
   *) echo "unknown stack: $STACK" >&2; exit 2 ;;
 esac
 
@@ -51,6 +51,28 @@ case "$STACK" in
     copy "$ASSETS/stack/python/tests/.gitkeep"       "$TARGET/tests/.gitkeep"
     copy "$ASSETS/ci/ci-python.yml"                  "$TARGET/.github/workflows/ci.yml"
     ;;
+  ts-frontend)
+    copy "$ASSETS/stack/ts-frontend/package.json"     "$TARGET/package.json"
+    copy "$ASSETS/stack/ts-frontend/tsconfig.json"    "$TARGET/tsconfig.json"
+    copy "$ASSETS/stack/ts-frontend/eslint.config.js" "$TARGET/eslint.config.js"
+    copy "$ASSETS/stack/ts-frontend/vite.config.ts"   "$TARGET/vite.config.ts"
+    copy "$ASSETS/stack/ts-frontend/gitignore"        "$TARGET/.gitignore"
+    copy "$ASSETS/stack/ts-frontend/index.html"        "$TARGET/index.html"
+    copy "$ASSETS/stack/ts-frontend/src/index.ts"      "$TARGET/src/index.ts"
+    copy "$ASSETS/stack/ts-frontend/src/index.test.ts" "$TARGET/src/index.test.ts"
+    copy "$ASSETS/stack/ts-frontend/src/main.tsx"      "$TARGET/src/main.tsx"
+    copy "$ASSETS/ci/ci-node.yml"                     "$TARGET/.github/workflows/ci.yml"
+    ;;
+  ts-backend)
+    copy "$ASSETS/stack/ts-backend/package.json"      "$TARGET/package.json"
+    copy "$ASSETS/stack/ts-backend/tsconfig.json"     "$TARGET/tsconfig.json"
+    copy "$ASSETS/stack/ts-backend/eslint.config.js"  "$TARGET/eslint.config.js"
+    copy "$ASSETS/stack/ts-backend/vitest.config.ts"  "$TARGET/vitest.config.ts"
+    copy "$ASSETS/stack/ts-backend/gitignore"         "$TARGET/.gitignore"
+    copy "$ASSETS/stack/ts-backend/src/index.ts"       "$TARGET/src/index.ts"
+    copy "$ASSETS/stack/ts-backend/src/index.test.ts"  "$TARGET/src/index.test.ts"
+    copy "$ASSETS/ci/ci-node.yml"                     "$TARGET/.github/workflows/ci.yml"
+    ;;
   none) ;;
 esac
 
diff --git a/tests/setup-repo/test-node-assets.sh b/tests/setup-repo/test-node-assets.sh
new file mode 100755
index 0000000..e79bd41
--- /dev/null
+++ b/tests/setup-repo/test-node-assets.sh
@@ -0,0 +1,76 @@
+#!/usr/bin/env bash
+set -euo pipefail
+ROOT="$(git rev-parse --show-toplevel)"
+STK="$ROOT/plugins/core/skills/setup-repo/assets/stack"
+
+check_pkg() { # check_pkg <dir> <needs-react:0|1>
+  local dir="$1" needs_react="$2"
+  python3 - "$dir/package.json" "$needs_react" <<'EOF'
+import json, sys
+pkg = json.load(open(sys.argv[1]))
+needs_react = sys.argv[2] == "1"
+scripts = pkg.get("scripts", {})
+for s in ("typecheck", "lint", "test"):
+    assert s in scripts, f"missing script {s}: {scripts}"
+assert scripts["lint"] == "eslint .", scripts
+assert scripts["typecheck"] == "tsc --noEmit", scripts
+assert scripts["test"] == "vitest run", scripts
+dev = pkg.get("devDependencies", {})
+for d in ("eslint", "typescript", "typescript-eslint", "vitest", "@eslint/js"):
+    assert d in dev, f"missing devDep {d}: {dev}"
+if needs_react:
+    deps = pkg.get("dependencies", {})
+    assert "react" in deps and "react-dom" in deps, deps
+    assert "vite" in dev and "@vitejs/plugin-react" in dev, dev
+print(f"{sys.argv[1]} OK")
+EOF
+}
+
+check_stack_files() { # check_stack_files <dir>
+  local dir="$1"
+  for f in package.json tsconfig.json eslint.config.js gitignore \
+           src/index.ts src/index.test.ts; do
+    test -f "$dir/$f" || { echo "MISSING: $dir/$f" >&2; exit 1; }
+  done
+  python3 -c "import json; json.load(open('$dir/tsconfig.json'))"
+  grep -q 'node_modules' "$dir/gitignore"
+  grep -q 'typescript-eslint' "$dir/eslint.config.js"
+}
+
+check_stack_files "$STK/ts-frontend"
+check_pkg "$STK/ts-frontend" 1
+for f in vite.config.ts index.html src/main.tsx; do
+  test -f "$STK/ts-frontend/$f" || { echo "MISSING: $STK/ts-frontend/$f" >&2; exit 1; }
+done
+echo "ts-frontend assets OK"
+
+check_stack_files "$STK/ts-backend"
+check_pkg "$STK/ts-backend" 0
+test -f "$STK/ts-backend/vitest.config.ts" || { echo "MISSING: $STK/ts-backend/vitest.config.ts" >&2; exit 1; }
+echo "ts-backend assets OK"
+
+CI="$ROOT/plugins/core/skills/setup-repo/assets/ci/ci-node.yml"
+python3 - "$CI" <<'EOF'
+import sys
+try:
+    import yaml
+except ModuleNotFoundError:
+    print("pyyaml missing; skipping ci-node YAML parse"); sys.exit(0)
+doc = yaml.safe_load(open(sys.argv[1]))
+on = doc.get("on", doc.get(True))
+assert on["push"]["branches"] == ["main"], on
+assert "pull_request" in on, on
+steps = doc["jobs"]["lint-and-test"]["steps"]
+uses = [str(s.get("uses", "")) for s in steps]
+setup_node = [s for s in steps if str(s.get("uses", "")).startswith("actions/setup-node")]
+assert setup_node, uses
+assert setup_node[0]["with"]["node-version"] == "20", setup_node
+assert setup_node[0]["with"]["cache"] == "npm", setup_node
+runs = "\n".join(s.get("run", "") for s in steps)
+assert "npm ci" in runs, runs
+assert "npm run typecheck" in runs, runs
+assert "npm run lint" in runs, runs
+assert "npm test" in runs, runs
+print("ci-node.yml OK")
+EOF
+echo "node ci asset OK"
diff --git a/tests/setup-repo/test-scaffold.sh b/tests/setup-repo/test-scaffold.sh
index 4b3847e..9de14cc 100755
--- a/tests/setup-repo/test-scaffold.sh
+++ b/tests/setup-repo/test-scaffold.sh
@@ -75,4 +75,34 @@ git -C "$BOGUS" init -q
 set +e; bash "$ENGINE" "$BOGUS" bogus >/dev/null 2>&1; rc=$?; set -e
 [ "$rc" -eq 2 ] || { echo "expected exit 2 for unknown stack, got $rc" >&2; exit 1; }
 [ -z "$(ls -A "$BOGUS" | grep -v '^.git$' || true)" ] || { echo "unknown stack wrote files" >&2; exit 1; }
+
+# ts-frontend: writes node/ts files + ci.yml, omits python-only files
+TMP_TSF="$(mktemp -d)"
+trap 'rm -rf "$TMP" "$TMP_NONE" "$BOGUS" "$TMP_TSF"' EXIT
+git -C "$TMP_TSF" init -q
+bash "$ENGINE" "$TMP_TSF" ts-frontend
+for f in .claude/settings.json CLAUDE.md .editorconfig \
+         package.json tsconfig.json eslint.config.js vite.config.ts .gitignore \
+         index.html src/index.ts src/index.test.ts src/main.tsx .github/workflows/ci.yml \
+         .github/workflows/claude.yml; do
+  test -e "$TMP_TSF/$f" || { echo "MISSING (ts-frontend): $f" >&2; exit 1; }
+done
+for f in pyproject.toml requirements.txt requirements-dev.txt; do
+  test -e "$TMP_TSF/$f" && { echo "UNEXPECTED (ts-frontend): $f" >&2; exit 1; }
+done
+python3 -c "import json; json.load(open('$TMP_TSF/package.json'))"
+grep -q '"react"' "$TMP_TSF/package.json" || { echo "ts-frontend missing react" >&2; exit 1; }
+grep -q 'npm ci' "$TMP_TSF/.github/workflows/ci.yml" || { echo "ts-frontend ci not node" >&2; exit 1; }
+
+# ts-backend: same file set, no react
+TMP_TSB="$(mktemp -d)"
+trap 'rm -rf "$TMP" "$TMP_NONE" "$BOGUS" "$TMP_TSF" "$TMP_TSB"' EXIT
+git -C "$TMP_TSB" init -q
+bash "$ENGINE" "$TMP_TSB" ts-backend
+for f in package.json tsconfig.json eslint.config.js vitest.config.ts .gitignore \
+         src/index.ts .github/workflows/ci.yml; do
+  test -e "$TMP_TSB/$f" || { echo "MISSING (ts-backend): $f" >&2; exit 1; }
+done
+grep -q '"react"' "$TMP_TSB/package.json" && { echo "ts-backend should not have react" >&2; exit 1; }
+python3 -c "import json; json.load(open('$TMP_TSB/package.json'))"
 echo "ALL CHECKS PASSED"