In-place E/I: G2 needs a changed seed contract object, G4 skips it; regenerate G0009/G0013/G0016/G0023 as G0188-G0191

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_014aUaQeLnwbb1zTpN7kHeat

harness/generator.py

@@ -174,6 +174,11 @@ def lint_files(b):
                 errs.append(f"{rel}: name {name} has {len(name)} characters (ABAP max 30)")
     t = b.get("task", {})
     oos = {n.upper() for n in t.get("out_of_scope", [])}
+    if t.get("category") in ("E", "I"):
+        seed_names = {o.get("name", "").upper() for o in t.get("seed", [])}
+        if not any(c.get("name", "").upper() in seed_names for c in t.get("contract", [])):
+            errs.append(f"category {t['category']}: the contract object must be the seed object that the model "
+                        "changes in place (same name in seed, contract and reference)")
     test_names = {o.get("name", "").upper() for o in t.get("hidden_tests", [])}
     for o in t.get("reference", []):
         name = o.get("name", "")
@@ -384,6 +389,7 @@ def generate(task_id, pool, object_type, category, difficulty, model, base_url,
         messages.append({"role": "assistant", "content": text})
         try:
             b = parse_bundle(text)
+            b.get("task", {}).setdefault("category", category)
             found = {"structure": check_bundle(b), "static": lint_files(b), "abaplint": abaplint_files(b)}
         except Exception as e:  # noqa: BLE001
             b, found = None, {"json": [f"invalid JSON: {e}"]}