Add fix scripts for activity YAML corrections

These scripts document the automated fixes applied to activities 30-37:
- fix_activity37.py: Changes 'close' bucket behavior + fixes completion
- fix_all_new_activities.py: Fixes final step completion for all activities

Keeping for reference and potential reuse on future activities.

fix_activity37.py

@@ -0,0 +1,49 @@
+#!/usr/bin/env python3
+"""
+Fix activity37:
+1. Change 'close' bucket to NOT advance (retry same step)
+2. Keep 'off_topic' looping on final step, remove next_section_and_step from completion buckets
+"""
+import yaml
+
+def fix_activity37():
+    file_path = "research/activity37-programming-languages.yaml"
+
+    # Read original file
+    with open(file_path, 'r') as f:
+        activity = yaml.safe_load(f)
+
+    # Fix 1: Change ALL "close" transitions to stay on same step
+    for section in activity['sections']:
+        section_id = section['section_id']
+        for step in section['steps']:
+            step_id = step['step_id']
+            if 'transitions' in step and 'close' in step.get('buckets', []):
+                # Change 'close' to stay on same step (don't advance)
+                if 'close' in step['transitions']:
+                    step['transitions']['close']['next_section_and_step'] = f"{section_id}:{step_id}"
+
+    # Fix 2: For final step (conclusion:step_1), keep ONLY 'off_topic' looping
+    # Remove next_section_and_step from all other transitions to allow completion
+    for section in activity['sections']:
+        if section['section_id'] == 'conclusion':
+            for step in section['steps']:
+                if step['step_id'] == 'step_1':
+                    for bucket, transition in step['transitions'].items():
+                        # Remove next_section_and_step from all except off_topic
+                        if bucket != 'off_topic' and 'next_section_and_step' in transition:
+                            del transition['next_section_and_step']
+                    # Ensure off_topic loops (for validator to not consider it terminal)
+                    if 'off_topic' in step['transitions']:
+                        step['transitions']['off_topic']['next_section_and_step'] = 'conclusion:step_1'
+
+    # Write back with minimal formatting changes
+    with open(file_path, 'w') as f:
+        yaml.dump(activity, f, default_flow_style=False, sort_keys=False, width=1000, allow_unicode=True)
+
+    print(f"✅ Fixed {file_path}")
+    print("  - 'close' buckets now retry same step (don't advance)")
+    print("  - Final step can now complete (off_topic loops, others complete)")
+
+if __name__ == '__main__':
+    fix_activity37()

fix_all_new_activities.py

@@ -0,0 +1,73 @@
+#!/usr/bin/env python3
+"""
+Fix completion issues in activities 30-36:
+- Keep 'off_topic' looping on final step
+- Remove next_section_and_step from all other buckets in final step to allow completion
+"""
+import yaml
+import glob
+
+def fix_final_step_completion(file_path):
+    """Fix the final step to allow completion."""
+    # Read file
+    with open(file_path, 'r') as f:
+        activity = yaml.safe_load(f)
+
+    # Find the last section
+    if not activity.get('sections'):
+        return False
+
+    last_section = activity['sections'][-1]
+    last_section_id = last_section['section_id']
+
+    # Find the last step in the last section
+    if not last_section.get('steps'):
+        return False
+
+    last_step = last_section['steps'][-1]
+    last_step_id = last_step['step_id']
+
+    # Fix: Keep ONLY 'off_topic' looping, remove next_section_and_step from other transitions
+    if 'transitions' not in last_step:
+        return False
+
+    modified = False
+    for bucket, transition in last_step['transitions'].items():
+        if bucket == 'off_topic':
+            # Ensure off_topic loops (so validator doesn't consider step terminal)
+            if 'next_section_and_step' not in transition or transition['next_section_and_step'] != f"{last_section_id}:{last_step_id}":
+                transition['next_section_and_step'] = f"{last_section_id}:{last_step_id}"
+                modified = True
+        else:
+            # Remove next_section_and_step from completion buckets
+            if 'next_section_and_step' in transition:
+                del transition['next_section_and_step']
+                modified = True
+
+    if modified:
+        # Write back
+        with open(file_path, 'w') as f:
+            yaml.dump(activity, f, default_flow_style=False, sort_keys=False, width=1000, allow_unicode=True)
+        return True
+
+    return False
+
+def main():
+    files = [
+        'research/activity30-logic-puzzles.yaml',
+        'research/activity31-scientific-method.yaml',
+        'research/activity32-world-geography.yaml',
+        'research/activity33-environmental-science.yaml',
+        'research/activity34-media-literacy.yaml',
+        'research/activity35-american-history.yaml',
+        'research/activity36-biblical-history.yaml',
+    ]
+
+    for file_path in files:
+        if fix_final_step_completion(file_path):
+            print(f"✅ Fixed {file_path}")
+        else:
+            print(f"⚠️  No changes needed for {file_path}")
+
+if __name__ == '__main__':
+    main()