import sys, json

d = json.load(sys.stdin)
nodes = d.get('graph', {}).get('nodes', [])
llms = [n for n in nodes if n.get('data', {}).get('type') == 'llm']
print(f'Total LLM nodes: {len(llms)}')
for n in llms:
    title = n['data']['title']
    sys_prompt = [p for p in n['data'].get('prompt_template', []) if p.get('role') == 'system']
    if sys_prompt:
        text = sys_prompt[0].get('text', '')
        print(f'  {title}: sys_prompt_len={len(text)}, contains_json={"JSON" in text or "json" in text}')
    else:
        print(f'  {title}: NO system prompt')