{"method": "measured", "tokens": {"input": 2111392, "cached_input": 2078112, "cache_write": 32734, "output": 9180, "total": 2120572}, "attempt_output_tokens": 9180, "cost_usd": 1.6387, "responses": 18, "notes": "Claude Code per-message usage between this attempt's prompt and the next attempt's; cache writes are 1-hour."}