Improve data skill routing and tool organization

src/data_agent_records.py

@@ -49,6 +49,8 @@ def prepare_generation_goal(
     if missing:
         raise DataRecordError('missing required goal fields: ' + ', '.join(missing))
     normalized_targets = _normalize_target_definitions(target_definitions)
+    if not target.strip() and not normalized_targets:
+        raise DataRecordError('generation goal must include target or target_definitions')
     state = _load_goal_state(root)
     sequence = int(state.get('next_sequence') or 1)
     goal_id = f'data_goal_{sequence:06d}'
@@ -186,6 +188,12 @@ def prepare_generation_plan(
         }
     )
     normalized_targets = _normalize_target_definitions(target_definitions)
+    if confirmed_goal is not None and not target.strip() and not normalized_targets:
+        normalized_targets = _normalize_target_definitions(
+            confirmed_goal.get('target_definitions') if isinstance(confirmed_goal, dict) else None
+        )
+        if not normalized_targets:
+            target = str(confirmed_goal.get('target') or '').strip()
     if not target.strip() and not normalized_targets:
         missing.append('target')
     if missing: