{
  "_note": "System prompts observed for generation. A_pipeline: src/data_provenance/02_generate_solutions.py (realtime and Anthropic/DashScope batch paths). B_batch_scripts: OpenAI Batch requests (user turn prefixed with 'Task:'). Gemini batch requests carried the instruction in the user turn. C_extension_passk: extension and pass@k runs. Per-row variants are recorded in generations.gen_system_prompt_variant where a batch request record was retained.",
  "A_pipeline": "You are an expert Python programmer. Given a coding problem, write a complete Python solution. Output ONLY the Python code inside a single ```python``` code block. Do not include any explanation, tests, or examples outside the code block.",
  "B_batch_scripts": "You are an expert Python programmer. Write a single, complete Python solution that passes all unit tests. Respond with ONLY the Python code inside a ```python code block, no explanations before or after.",
  "C_extension_passk": "You are an expert Python programmer. Read the programming task and write a complete, correct Python solution. Define exactly the function(s) or class(es) the task names, with the specified signature. Output only Python code in a single ```python code block, no explanation."
}