feat(tagging+archetypes): add Pillowfort/Politics/Midrange/Toolbox tagging and unify archetype presence skip logic

code/tests/test_theme_description_fallback_regression.py

@@ -0,0 +1,33 @@
+import json
+import os
+from pathlib import Path
+
+ROOT = Path(__file__).resolve().parents[2]
+SCRIPT = ROOT / 'code' / 'scripts' / 'build_theme_catalog.py'
+OUTPUT = ROOT / 'config' / 'themes' / 'theme_list_test_regression.json'
+
+
+def test_generic_description_regression():
+    # Run build with summary enabled directed to temp output
+    env = os.environ.copy()
+    env['EDITORIAL_INCLUDE_FALLBACK_SUMMARY'] = '1'
+    # Avoid writing real catalog file; just produce alternate output
+    import subprocess
+    import sys
+    cmd = [sys.executable, str(SCRIPT), '--output', str(OUTPUT)]
+    res = subprocess.run(cmd, capture_output=True, text=True, env=env)
+    assert res.returncode == 0, res.stderr
+    data = json.loads(OUTPUT.read_text(encoding='utf-8'))
+    summary = data.get('description_fallback_summary') or {}
+    # Guardrails tightened (second wave). Prior baseline: ~357 generic (309 + 48).
+    # New ceiling: <= 365 total generic and <52% share. Future passes should lower further.
+    assert summary.get('generic_total', 0) <= 365, summary
+    assert summary.get('generic_pct', 100.0) < 52.0, summary
+    # Basic shape checks
+    assert 'top_generic_by_frequency' in summary
+    assert isinstance(summary['top_generic_by_frequency'], list)
+    # Clean up temp output file
+    try:
+        OUTPUT.unlink()
+    except Exception:
+        pass