Lock asset pipeline to free sources

Scripts/verify_asset_license_free_only.py

@@ -0,0 +1,66 @@
+#!/usr/bin/env python3
+"""Fail if tracked Agrarian assets include paid or unclear costs."""
+
+from pathlib import Path
+
+ROOT = Path(__file__).resolve().parents[1]
+REGISTER = ROOT / "Docs" / "Art" / "AssetLicenses.md"
+
+ALLOWED_COSTS = {"free", "$0", "0", "n/a", "na"}
+BLOCKED_WORDS = {
+    "paid",
+    "purchased",
+    "purchase",
+    "subscription",
+    "unknown",
+    "unclear",
+    "tbd",
+    "marketplace bundle",
+}
+
+
+def parse_markdown_table_rows(text: str) -> list[list[str]]:
+    rows: list[list[str]] = []
+    for line in text.splitlines():
+        stripped = line.strip()
+        if not stripped.startswith("|") or "---" in stripped:
+            continue
+        cells = [cell.strip() for cell in stripped.strip("|").split("|")]
+        if cells and cells[0] != "Asset":
+            rows.append(cells)
+    return rows
+
+
+def main() -> None:
+    if not REGISTER.exists():
+        raise SystemExit(f"Missing asset license register: {REGISTER}")
+
+    rows = parse_markdown_table_rows(REGISTER.read_text(encoding="utf-8"))
+    failures: list[str] = []
+
+    for row in rows:
+        if len(row) < 5:
+            failures.append(f"Malformed asset license row: {' | '.join(row)}")
+            continue
+
+        asset = row[0]
+        cost = row[4].strip().lower()
+        full_row = " ".join(row).lower()
+
+        if not cost:
+            failures.append(f"{asset}: cost is blank")
+        elif cost not in ALLOWED_COSTS:
+            failures.append(f"{asset}: cost {row[4]!r} is not free-only")
+
+        for blocked in BLOCKED_WORDS:
+            if blocked in full_row:
+                failures.append(f"{asset}: blocked free-only word found: {blocked!r}")
+
+    if failures:
+        raise SystemExit("\n".join(failures))
+
+    print(f"Asset license free-only verification complete: {len(rows)} entries.")
+
+
+if __name__ == "__main__":
+    main()

Scripts/verify_asset_pipeline_policy.py

@@ -12,12 +12,16 @@ REQUIRED = {
         "CC0 or public-domain",
         "/home/nathan/AssetStaging/Agrarian",
         "Do not import random internet images",
+        "Free-Only Acquisition Gate",
+        "Paid Fab assets are blocked",
         "Native Ground Zero proxy vegetation",
     ],
     "Docs/Art/AgrarianAssetPipeline.md": [
         "realistic modern post-collapse frontier survival",
         "Old abandoned equipment",
         "Do not scrape random internet images or models",
+        "Free-Only Lockdown",
+        "Do not click purchase",
         "LicenseEvidence",
         "Run visual and placeholder verifiers",
         "Water should be handled as a shader/system problem",