Add Krea2 eval entry templates

tools/krea2_record_eval.py

@@ -2,6 +2,7 @@
 from __future__ import annotations
 
 import argparse
+from datetime import date
 import json
 import sys
 from pathlib import Path
@@ -25,12 +26,30 @@ def _load_entry(path: Path) -> dict:
 
 def main() -> int:
     parser = argparse.ArgumentParser(description="Validate and append one durable Krea2 fixed-seed eval entry.")
-    parser.add_argument("--entry-json", required=True, help="Path to a JSON object containing one eval entry.")
+    parser.add_argument("--entry-json", help="Path to a JSON object containing one eval entry.")
+    parser.add_argument("--print-template", action="store_true", help="Print a valid eval entry template instead of recording.")
+    parser.add_argument("--variant-key", help="Catalog variant key for --print-template.")
+    parser.add_argument("--seed", type=int, help="Fixed seed for --print-template.")
+    parser.add_argument("--source", default="sxcp_eval_mcp", help="Source label for --print-template.")
+    parser.add_argument("--date", default=date.today().isoformat(), help="Date for --print-template.")
     parser.add_argument("--log-path", default=str(krea2_eval_log.DEFAULT_EVAL_LOG_PATH), help="Eval log path to update.")
     parser.add_argument("--dry-run", action="store_true", help="Validate without writing the log.")
     args = parser.parse_args()
 
     try:
+        if args.print_template:
+            if not args.variant_key or args.seed is None:
+                raise ValueError("--print-template requires --variant-key and --seed")
+            entry = krea2_eval_log.entry_template(
+                args.variant_key,
+                seed=args.seed,
+                source=args.source,
+                date=args.date,
+            )
+            print(json.dumps(entry, ensure_ascii=True, indent=2))
+            return 0
+        if not args.entry_json:
+            raise ValueError("--entry-json is required unless --print-template is used")
         entry = _load_entry(Path(args.entry_json))
         log = krea2_eval_log.append_entry(entry, path=args.log_path, dry_run=args.dry_run)
     except Exception as exc: