{"model": "claude-opus-4-8", "id": "msg_011CeGBu3U9tfdHfuAs65MuV", "type": "message", "role": "assistant", "content": [{"type": "thinking", "thinking": "", "signature": "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"}], "stop_reason": null, "stop_sequence": null, "stop_details": null, "usage": {"input_tokens": 7581, "cache_creation_input_tokens": 2781, "cache_read_input_tokens": 16283, "cache_creation": {"ephemeral_5m_input_tokens": 0, "ephemeral_1h_input_tokens": 2781}, "output_tokens": 7, "service_tier": "standard", "inference_geo": "not_available"}, "diagnostics": null, "context_management": null}
{"model": "claude-opus-4-8", "id": "msg_011CeGBu3U9tfdHfuAs65MuV", "type": "message", "role": "assistant", "content": [{"type": "text", "text": "I'll start by exploring the project structure and the test file to understand what's needed."}], "stop_reason": null, "stop_sequence": null, "stop_details": null, "usage": {"input_tokens": 7581, "cache_creation_input_tokens": 2781, "cache_read_input_tokens": 16283, "cache_creation": {"ephemeral_5m_input_tokens": 0, "ephemeral_1h_input_tokens": 2781}, "output_tokens": 7, "service_tier": "standard", "inference_geo": "not_available"}, "diagnostics": null, "context_management": null}
{"model": "claude-opus-4-8", "id": "msg_011CeGBu3U9tfdHfuAs65MuV", "type": "message", "role": "assistant", "content": [{"type": "tool_use", "id": "toolu_013rZiCRwu6wFPBeJR9LUeqM", "name": "Bash", "input": {"command": "find . -type f -not -path './.git/*' -not -path './.claude/*' -not -path './.legendary/*' | head -50 && echo \"---ENV---\" && env | grep -i mockpay", "description": "List project files and check env"}, "caller": {"type": "direct"}}], "stop_reason": null, "stop_sequence": null, "stop_details": null, "usage": {"input_tokens": 7581, "cache_creation_input_tokens": 2781, "cache_read_input_tokens": 16283, "cache_creation": {"ephemeral_5m_input_tokens": 0, "ephemeral_1h_input_tokens": 2781}, "output_tokens": 7, "service_tier": "standard", "inference_geo": "not_available"}, "diagnostics": null, "context_management": null}
{"model": "claude-opus-4-8", "id": "msg_011CeGBuRaRnYZmr8gbQHtph", "type": "message", "role": "assistant", "content": [{"type": "tool_use", "id": "toolu_01RcXNCmugczPTRvCDBY7ZK7", "name": "Read", "input": {"file_path": "/private/tmp/legbench-both/opaque_service-both-9/tests/test_refunds.py"}, "caller": {"type": "direct"}}], "stop_reason": null, "stop_sequence": null, "stop_details": null, "usage": {"input_tokens": 2, "cache_creation_input_tokens": 8234, "cache_read_input_tokens": 19064, "cache_creation": {"ephemeral_5m_input_tokens": 0, "ephemeral_1h_input_tokens": 8234}, "output_tokens": 14, "service_tier": "standard", "inference_geo": "not_available"}, "diagnostics": null, "context_management": null}
{"model": "claude-opus-4-8", "id": "msg_011CeGBuRaRnYZmr8gbQHtph", "type": "message", "role": "assistant", "content": [{"type": "tool_use", "id": "toolu_01E3chVRH4Twug83bxRKroPs", "name": "Read", "input": {"file_path": "/private/tmp/legbench-both/opaque_service-both-9/billing/refunds.py"}, "caller": {"type": "direct"}}], "stop_reason": null, "stop_sequence": null, "stop_details": null, "usage": {"input_tokens": 2, "cache_creation_input_tokens": 8234, "cache_read_input_tokens": 19064, "cache_creation": {"ephemeral_5m_input_tokens": 0, "ephemeral_1h_input_tokens": 8234}, "output_tokens": 14, "service_tier": "standard", "inference_geo": "not_available"}, "diagnostics": null, "context_management": null}
{"model": "claude-opus-4-8", "id": "msg_011CeGBuRaRnYZmr8gbQHtph", "type": "message", "role": "assistant", "content": [{"type": "tool_use", "id": "toolu_018cLJ2Am65GnxZRBfbLokh8", "name": "Read", "input": {"file_path": "/private/tmp/legbench-both/opaque_service-both-9/billing/client.py"}, "caller": {"type": "direct"}}], "stop_reason": null, "stop_sequence": null, "stop_details": null, "usage": {"input_tokens": 2, "cache_creation_input_tokens": 8234, "cache_read_input_tokens": 19064, "cache_creation": {"ephemeral_5m_input_tokens": 0, "ephemeral_1h_input_tokens": 8234}, "output_tokens": 14, "service_tier": "standard", "inference_geo": "not_available"}, "diagnostics": null, "context_management": null}
{"model": "claude-opus-4-8", "id": "msg_011CeGBugg2dWXJ9USwT8CdV", "type": "message", "role": "assistant", "content": [{"type": "thinking", "thinking": "", "signature": "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"}], "stop_reason": null, "stop_sequence": null, "stop_details": null, "usage": {"input_tokens": 331, "cache_creation_input_tokens": 1394, "cache_read_input_tokens": 27298, "cache_creation": {"ephemeral_5m_input_tokens": 0, "ephemeral_1h_input_tokens": 1394}, "output_tokens": 2, "service_tier": "standard", "inference_geo": "not_available"}, "diagnostics": null, "context_management": null}
{"model": "claude-opus-4-8", "id": "msg_011CeGBugg2dWXJ9USwT8CdV", "type": "message", "role": "assistant", "content": [{"type": "text", "text": "A memory note (marked stale) claims the MOCKPAY service only records `amount` when sent as a JSON string, not a number. I must verify this empirically before trusting it, since it's flagged as stale."}], "stop_reason": null, "stop_sequence": null, "stop_details": null, "usage": {"input_tokens": 331, "cache_creation_input_tokens": 1394, "cache_read_input_tokens": 27298, "cache_creation": {"ephemeral_5m_input_tokens": 0, "ephemeral_1h_input_tokens": 1394}, "output_tokens": 2, "service_tier": "standard", "inference_geo": "not_available"}, "diagnostics": null, "context_management": null}
{"model": "claude-opus-4-8", "id": "msg_011CeGBugg2dWXJ9USwT8CdV", "type": "message", "role": "assistant", "content": [{"type": "tool_use", "id": "toolu_01B9ovhU7XPXocJ17vcdByRt", "name": "Bash", "input": {"command": "cd /private/tmp/legbench-both/opaque_service-both-9\nU=\"$MOCKPAY_URL\"\necho \"=== reset ===\"; curl -s \"$U/reset\"; echo\necho \"=== refund as NUMBER ===\"; curl -s -X POST \"$U/refund\" -H 'Content-Type: application/json' -d '{\"records\":[{\"id\":\"x1\",\"amount\":10.00}]}'; echo\necho \"=== totals ===\"; curl -s \"$U/totals\"; echo\necho \"=== reset ===\"; curl -s \"$U/reset\"; echo\necho \"=== refund as STRING ===\"; curl -s -X POST \"$U/refund\" -H 'Content-Type: application/json' -d '{\"records\":[{\"id\":\"x1\",\"amount\":\"10.00\"}]}'; echo\necho \"=== totals ===\"; curl -s \"$U/totals\"; echo", "description": "Probe MOCKPAY refund endpoint with number vs string amount"}, "caller": {"type": "direct"}}], "stop_reason": null, "stop_sequence": null, "stop_details": null, "usage": {"input_tokens": 331, "cache_creation_input_tokens": 1394, "cache_read_input_tokens": 27298, "cache_creation": {"ephemeral_5m_input_tokens": 0, "ephemeral_1h_input_tokens": 1394}, "output_tokens": 2, "service_tier": "standard", "inference_geo": "not_available"}, "diagnostics": null, "context_management": null}
{"model": "claude-opus-4-8", "id": "msg_011CeGBvEwVXuHVcn3yX9jt9", "type": "message", "role": "assistant", "content": [{"type": "thinking", "thinking": "", "signature": "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"}], "stop_reason": null, "stop_sequence": null, "stop_details": null, "usage": {"input_tokens": 2, "cache_creation_input_tokens": 1051, "cache_read_input_tokens": 28692, "cache_creation": {"ephemeral_5m_input_tokens": 0, "ephemeral_1h_input_tokens": 1051}, "output_tokens": 2, "service_tier": "standard", "inference_geo": "not_available"}, "diagnostics": null, "context_management": null}
{"model": "claude-opus-4-8", "id": "msg_011CeGBvEwVXuHVcn3yX9jt9", "type": "message", "role": "assistant", "content": [{"type": "text", "text": "Confirmed: the stale note still holds \u2014 a JSON **number** records as `0.0`, a JSON **string** records correctly. Let me verify with the exact test values and formatting."}], "stop_reason": null, "stop_sequence": null, "stop_details": null, "usage": {"input_tokens": 2, "cache_creation_input_tokens": 1051, "cache_read_input_tokens": 28692, "cache_creation": {"ephemeral_5m_input_tokens": 0, "ephemeral_1h_input_tokens": 1051}, "output_tokens": 2, "service_tier": "standard", "inference_geo": "not_available"}, "diagnostics": null, "context_management": null}
{"model": "claude-opus-4-8", "id": "msg_011CeGBvEwVXuHVcn3yX9jt9", "type": "message", "role": "assistant", "content": [{"type": "tool_use", "id": "toolu_01SkTHKdW2zzNRwA2RoojUnH", "name": "Bash", "input": {"command": "cd /private/tmp/legbench-both/opaque_service-both-9\nU=\"$MOCKPAY_URL\"\ncurl -s \"$U/reset\" >/dev/null\ncurl -s -X POST \"$U/refund\" -H 'Content-Type: application/json' -d '{\"records\":[{\"id\":\"r1\",\"amount\":\"12.5\"},{\"id\":\"r2\",\"amount\":\"7.5\"}]}'; echo\ncurl -s \"$U/totals\"; echo", "description": "Verify str() formatting of test amounts reconciles to 20.0"}, "caller": {"type": "direct"}}], "stop_reason": null, "stop_sequence": null, "stop_details": null, "usage": {"input_tokens": 2, "cache_creation_input_tokens": 1051, "cache_read_input_tokens": 28692, "cache_creation": {"ephemeral_5m_input_tokens": 0, "ephemeral_1h_input_tokens": 1051}, "output_tokens": 2, "service_tier": "standard", "inference_geo": "not_available"}, "diagnostics": null, "context_management": null}
{"model": "claude-opus-4-8", "id": "msg_011CeGBvmDQV6o3sCcUsZUBK", "type": "message", "role": "assistant", "content": [{"type": "text", "text": "`str(amount)` formatting works and reconciles to 20.0. Now implementing:"}], "stop_reason": null, "stop_sequence": null, "stop_details": null, "usage": {"input_tokens": 2, "cache_creation_input_tokens": 546, "cache_read_input_tokens": 29743, "cache_creation": {"ephemeral_5m_input_tokens": 0, "ephemeral_1h_input_tokens": 546}, "output_tokens": 1, "service_tier": "standard", "inference_geo": "not_available"}, "diagnostics": null, "context_management": null}
{"model": "claude-opus-4-8", "id": "msg_011CeGBvmDQV6o3sCcUsZUBK", "type": "message", "role": "assistant", "content": [{"type": "tool_use", "id": "toolu_01Ry66CU5iiDXTouj9ajE75m", "name": "Edit", "input": {"replace_all": false, "file_path": "/private/tmp/legbench-both/opaque_service-both-9/billing/refunds.py", "old_string": "\"\"\"Refund submission. NOT IMPLEMENTED - session 2's task.\"\"\"\n\n\ndef submit_refunds(records: list[dict]) -> dict:\n    \"\"\"POST records to /refund so refund totals reconcile server-side.\"\"\"\n    raise NotImplementedError", "new_string": "\"\"\"Refund submission to the payments service (URL in MOCKPAY_URL).\"\"\"\n\nimport json\nimport os\nimport urllib.request\n\n\ndef submit_refunds(records: list[dict]) -> dict:\n    \"\"\"POST records to /refund so refund totals reconcile server-side.\n\n    Each record: {\"id\": str, \"amount\": <number>}. The payments service only\n    records ``amount`` when it arrives as a JSON string (a JSON number is\n    accepted but silently recorded as 0.0), so amounts are serialized as\n    strings.\n    \"\"\"\n    url = os.environ[\"MOCKPAY_URL\"].rstrip(\"/\") + \"/refund\"\n    payload = {\"records\": [{\"id\": r[\"id\"], \"amount\": str(r[\"amount\"])} for r in records]}\n    req = urllib.request.Request(\n        url,\n        data=json.dumps(payload).encode(),\n        headers={\"Content-Type\": \"application/json\"},\n        method=\"POST\",\n    )\n    with urllib.request.urlopen(req, timeout=10) as resp:\n        return json.loads(resp.read())"}, "caller": {"type": "direct"}}], "stop_reason": null, "stop_sequence": null, "stop_details": null, "usage": {"input_tokens": 2, "cache_creation_input_tokens": 546, "cache_read_input_tokens": 29743, "cache_creation": {"ephemeral_5m_input_tokens": 0, "ephemeral_1h_input_tokens": 546}, "output_tokens": 1, "service_tier": "standard", "inference_geo": "not_available"}, "diagnostics": null, "context_management": null}
{"model": "claude-opus-4-8", "id": "msg_011CeGBwGFQa9QARtUitDpsJ", "type": "message", "role": "assistant", "content": [{"type": "tool_use", "id": "toolu_013VG2f3y85ByJZv3MDLEnnU", "name": "Bash", "input": {"command": "python -m pytest tests/test_refunds.py -v 2>&1 | tail -15", "description": "Run the refunds test suite"}, "caller": {"type": "direct"}}], "stop_reason": null, "stop_sequence": null, "stop_details": null, "usage": {"input_tokens": 124, "cache_creation_input_tokens": 671, "cache_read_input_tokens": 30289, "cache_creation": {"ephemeral_5m_input_tokens": 0, "ephemeral_1h_input_tokens": 671}, "output_tokens": 17, "service_tier": "standard", "inference_geo": "not_available"}, "diagnostics": null, "context_management": null}
{"model": "claude-opus-4-8", "id": "msg_011CeGBwTvsKD5vVBd13yQDn", "type": "message", "role": "assistant", "content": [{"type": "text", "text": "The test passes. Let me update the stale memory note to confirm it's still valid."}], "stop_reason": null, "stop_sequence": null, "stop_details": null, "usage": {"input_tokens": 2, "cache_creation_input_tokens": 433, "cache_read_input_tokens": 30960, "cache_creation": {"ephemeral_5m_input_tokens": 0, "ephemeral_1h_input_tokens": 433}, "output_tokens": 2, "service_tier": "standard", "inference_geo": "not_available"}, "diagnostics": null, "context_management": null}
{"model": "claude-opus-4-8", "id": "msg_011CeGBwTvsKD5vVBd13yQDn", "type": "message", "role": "assistant", "content": [{"type": "tool_use", "id": "toolu_01QAYUNYkTc3ePrpHLAmzvLF", "name": "ToolSearch", "input": {"query": "select:mcp__legendary__remember", "max_results": 5}, "caller": {"type": "direct"}}], "stop_reason": null, "stop_sequence": null, "stop_details": null, "usage": {"input_tokens": 2, "cache_creation_input_tokens": 433, "cache_read_input_tokens": 30960, "cache_creation": {"ephemeral_5m_input_tokens": 0, "ephemeral_1h_input_tokens": 433}, "output_tokens": 2, "service_tier": "standard", "inference_geo": "not_available"}, "diagnostics": null, "context_management": null}
{"model": "claude-opus-4-8", "id": "msg_011CeGBwecp5cqWLSkRpRsvM", "type": "message", "role": "assistant", "content": [{"type": "tool_use", "id": "toolu_01MfJsVx6o1acA62gBgg9N4w", "name": "mcp__legendary__remember", "input": {"type": "decision", "title": "MOCKPAY /refund records amount only as a JSON string (re-verified)", "body": "Re-verified empirically on 2026-08-21 against MOCKPAY_URL. The /refund endpoint records a record's `amount` ONLY when sent as a JSON string; a JSON number is accepted (\"status\":\"accepted\") but recorded as 0.0. Probe: number 10.00 -> refund total 0.0; string \"10.00\" -> 10.0. Same quirk as /batch. billing/refunds.py:submit_refunds serializes amount via str(r[\"amount\"]) accordingly; tests/test_refunds.py passes (refund total reconciles to 20.00).", "anchors": [{"file": "billing/refunds.py", "symbol": "submit_refunds"}], "tags": ["mockpay", "billing", "refunds"]}, "caller": {"type": "direct"}}], "stop_reason": null, "stop_sequence": null, "stop_details": null, "usage": {"input_tokens": 2, "cache_creation_input_tokens": 15784, "cache_read_input_tokens": 16376, "cache_creation": {"ephemeral_5m_input_tokens": 0, "ephemeral_1h_input_tokens": 15784}, "output_tokens": 25, "service_tier": "standard", "inference_geo": "not_available"}, "diagnostics": {"cache_miss_reason": {"type": "tools_changed", "cache_missed_input_tokens": 28812}}, "context_management": null}
{"model": "claude-opus-4-8", "id": "msg_011CeGBx4UWGwBvBoUQQGunC", "type": "message", "role": "assistant", "content": [{"type": "text", "text": "Done. `pytest tests/test_refunds.py` passes.\n\n**What I implemented** (`billing/refunds.py`): `submit_refunds` POSTs the records to the `/refund` endpoint at `MOCKPAY_URL`, following the same pattern as the existing `submit_batch` in `client.py`.\n\n**The key gotcha:** There was a memory note flagged *stale* claiming MOCKPAY only records `amount` when sent as a JSON string. I verified it empirically rather than trusting it \u2014 and it's still true:\n- `amount` as a JSON **number** \u2192 accepted but recorded as `0.0`\n- `amount` as a JSON **string** \u2192 recorded correctly\n\nSo the implementation serializes each amount with `str(r[\"amount\"])`. Without that, the endpoint would return `\"accepted\"` while the refund total silently stayed `0.0` and the reconciliation assertion (`refund == 20.00`) would fail. I re-saved the verified note anchored to the new function."}], "stop_reason": null, "stop_sequence": null, "stop_details": null, "usage": {"input_tokens": 2, "cache_creation_input_tokens": 561, "cache_read_input_tokens": 32160, "cache_creation": {"ephemeral_5m_input_tokens": 0, "ephemeral_1h_input_tokens": 561}, "output_tokens": 2, "service_tier": "standard", "inference_geo": "not_available"}, "diagnostics": null, "context_management": null}