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  "note": "Raw harness output - one entry per benchmark run. Transcript tails and full CLI stdout live in bench/runs/ in the repository.",
  "generated_at": "2026-07-13T02:52:48.577712+00:00",
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      "run": "01-interval-bugfix__claude-fable-5",
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      "vendor": "anthropic",
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        "final_message": "All 19 tests pass. The three regressions in `intervals.py` were:\n\n1. **`normalize`** \u2014 the merge condition was `start < last_end`, which merged only overlapping intervals. Changed to `start <= last_end` so adjacent intervals (`[1,3)` + `[3,5)`) merge as documented.\n2. **`subtract`** \u2014 a stray `break` exited the hole loop after the first hole touching a base interval, so a second hole cutting the same interval was ignored. Removed the `break` so all holes are applied.\n3. **`find_gap`** \u2014 the cursor was initialized to `windows[0][1]` (end of the first busy interval), which crashed with `IndexError` on an empty busy list and skipped any gap before the first busy interval. Initialized it to `0` instead; the existing loop and horizon check then handle the empty-list and leading-gap cases correctly.",
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        "all_pass": true,
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      "files": {
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          "intervals.py"
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      "cli": "claude",
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        "final_message": "All 19 tests pass. I fixed three regressed bugs in `intervals.py`:\n\n1. **`normalize`** \u2014 the merge condition `start < last_end` dropped adjacent-interval merges. Changed to `start <= last_end` so `[1,3)` + `[3,5)` \u2192 `[1,5)`.\n\n2. **`subtract`** \u2014 a `break` after applying the first overlapping hole meant only one hole could cut a base interval. Removed it so every hole (holes are pre-sorted via `normalize`) cuts the base in sequence.\n\n3. **`find_gap`** \u2014 it initialized `cursor = windows[0][1]` (skipping the gap before the first busy interval and crashing on empty `busy`). Rewrote to start `cursor = 0`, return a fitting gap as soon as one is found, and respect the `horizon` bound (breaking once a busy window starts at/after the horizon so out-of-range windows can't produce a false gap).\n\nNo signatures or documented behaviour changed, and nothing under `tests/` was touched.",
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      "vendor": "anthropic",
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        "-p",
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        "--output-format",
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        "--dangerously-skip-permissions",
        "--setting-sources",
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        "--strict-mcp-config",
        "--max-turns",
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      "status": "ok",
      "exit_code": 0,
      "wall_seconds": 42.3,
      "started_at": "2026-07-12T16:59:11.257278+00:00",
      "finished_at": "2026-07-12T16:59:53.660857+00:00",
      "cli_report": {
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        "num_turns": 7,
        "cost_usd": 0.42468929999999994,
        "is_error": false,
        "subtype": "success",
        "final_message": "All 19 tests pass. Fixed three bugs in `intervals.py`:\n\n1. **`normalize`** \u2014 used `start < last_end` so adjacent intervals (`[1,3)` + `[3,5)`) weren't merged; changed to `start <= last_end`.\n2. **`subtract`** \u2014 had a `break` after handling the first overlapping hole, so only one hole per base interval was applied; removed it (now breaks only once the cursor reaches the base's end) so multiple holes correctly cut the same base interval.\n3. **`find_gap`** \u2014 started `cursor` at `windows[0][1]` (skipping the gap before the first busy interval, and crashing on an empty busy list); changed to start `cursor = 0`.",
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      },
      "integrity_ok": true,
      "files": {
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      "display": "ChatGPT 5.5",
      "vendor": "openai",
      "cli": "codex",
      "config_note": "reasoning xhigh",
      "command": [
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        "--skip-git-repo-check",
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        "C:\\Users\\ceyhu\\AppData\\Local\\Temp\\claude\\D--DelphiProjects-codexvsclaude\\2599569f-5b8d-46ad-966d-55c321734ab3\\scratchpad\\sandboxes\\gpt-5-5-xhigh\\01-interval-bugfix",
        "--output-last-message",
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      "status": "ok",
      "exit_code": 0,
      "wall_seconds": 44.1,
      "started_at": "2026-07-12T16:59:11.253263+00:00",
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        "all_pass": true,
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      },
      "integrity_ok": true,
      "files": {
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          "intervals.py"
        ],
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      "vendor": "openai",
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      "wall_seconds": 41.9,
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      },
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      },
      "integrity_ok": true,
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          "intervals.py"
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      "vendor": "anthropic",
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      "exit_code": 0,
      "wall_seconds": 154.4,
      "started_at": "2026-07-12T17:02:39.669634+00:00",
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        "output_tail": "_until) ... ok\ntest_monthly_interval_across_year_boundary (tests.test_recur.MonthlyTests.test_monthly_interval_across_year_boundary) ... ok\ntest_monthly_last_day_across_leap_february (tests.test_recur.MonthlyTests.test_monthly_last_day_across_leap_february) ... ok\ntest_monthly_plain_keeps_day (tests.test_recur.MonthlyTests.test_monthly_plain_keeps_day) ... ok\ntest_monthly_skips_months_without_the_day (tests.test_recur.MonthlyTests.test_monthly_skips_months_without_the_day) ... ok\ntest_byday_and_bymonthday_are_freq_specific (tests.test_recur.ValidationTests.test_byday_and_bymonthday_are_freq_specific) ... ok\ntest_rejects_unknown_freq_and_bad_interval (tests.test_recur.ValidationTests.test_rejects_unknown_freq_and_bad_interval) ... ok\ntest_requires_exactly_one_terminator (tests.test_recur.ValidationTests.test_requires_exactly_one_terminator) ... ok\ntest_weekly_byday_includes_matching_start (tests.test_recur.WeeklyTests.test_weekly_byday_includes_matching_start) ... ok\ntest_weekly_byday_trims_week_zero (tests.test_recur.WeeklyTests.test_weekly_byday_trims_week_zero) ... ok\ntest_weekly_byday_until_boundary (tests.test_recur.WeeklyTests.test_weekly_byday_until_boundary) ... ok\ntest_weekly_byday_with_interval_two (tests.test_recur.WeeklyTests.test_weekly_byday_with_interval_two) ... ok\ntest_weekly_plain_interval_two (tests.test_recur.WeeklyTests.test_weekly_plain_interval_two) ... ok\n\n----------------------------------------------------------------------\nRan 17 tests in 0.001s\n\nOK\n"
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      },
      "integrity_ok": true,
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          "pipeline/__init__.py",
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      "vendor": "anthropic",
      "cli": "claude",
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        "-p",
        "--model",
        "claude-opus-4-8",
        "--output-format",
        "json",
        "--dangerously-skip-permissions",
        "--setting-sources",
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        "--strict-mcp-config",
        "--max-turns",
        "80"
      ],
      "status": "ok",
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      "wall_seconds": 100.4,
      "started_at": "2026-07-12T19:59:32.049498+00:00",
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      "cli_report": {
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        "is_error": false,
        "subtype": "success",
        "final_message": "All 15 tests pass. Here's what was wrong and what I fixed:\n\n**Root cause (the masked failure):** `pipeline/source.py` imported from `pipeline/transform.py` and `transform.py` imported back from `source.py` \u2014 a **circular import**. On package init, `source` began importing, triggered `transform`, which tried to import `load_rows` from the still-partially-initialized `source` \u2192 `ImportError`. The over-broad `except ImportError` in `__init__.py` swallowed that and re-raised the bogus `\"data source missing\"` message.\n\n**Fixes (all inside `pipeline/`):**\n1. `__init__.py` \u2014 removed the misleading try/except wrapper so imports surface real errors directly.\n2. `transform.py` \u2014 removed the unused circular `from .source import load_rows` re-export, breaking the cycle (imports now flow one direction: `source \u2192 transform`).\n3. `source.py` \u2014 `lines[2:]` \u2192 `lines[1:]`, which had been dropping the first data row.\n4. `transform.py` \u2014 `qty > min_qty` \u2192 `qty >= min_qty`, so the boundary qty is kept per the contract.\n\n`report.py` was already correct (its tie-break logic works), so I left it untouched.",
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      },
      "integrity_ok": true,
      "files": {
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          "pipeline/__init__.py",
          "pipeline/source.py",
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      "task": "10-py-pipeline-rescue",
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      "vendor": "anthropic",
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        "-p",
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        "--output-format",
        "json",
        "--dangerously-skip-permissions",
        "--setting-sources",
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        "--strict-mcp-config",
        "--max-turns",
        "80"
      ],
      "status": "ok",
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      "wall_seconds": 56.8,
      "started_at": "2026-07-12T19:59:32.048499+00:00",
      "finished_at": "2026-07-12T20:00:28.989109+00:00",
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        "num_turns": 14,
        "cost_usd": 0.5583837,
        "is_error": false,
        "subtype": "success",
        "final_message": "All 15 tests pass. The fixes:\n\n1. **`pipeline/__init__.py`** \u2014 removed the over-broad `try/except ImportError` that masked the real error behind a misleading `RuntimeError`.\n2. **Circular import** \u2014 `source.py` imported `DEFAULT_MIN_QTY` from `transform.py`, which in turn imported `load_rows` from `source.py`; neither import was actually used in its file, so removed both.\n3. **`pipeline/source.py`** \u2014 `lines[2:]` skipped the first data row; changed to `lines[1:]` so it's included per spec.\n4. **`pipeline/transform.py`** \u2014 `qty > min_qty` excluded rows exactly at the boundary; changed to `qty >= min_qty` per spec.",
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      },
      "integrity_ok": true,
      "files": {
        "modified": [
          "pipeline/__init__.py",
          "pipeline/source.py",
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    {
      "run": "10-py-pipeline-rescue__gpt-5-5-xhigh",
      "task": "10-py-pipeline-rescue",
      "model_id": "gpt-5.5",
      "display": "ChatGPT 5.5",
      "vendor": "openai",
      "cli": "codex",
      "config_note": "reasoning xhigh",
      "command": [
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        "exec",
        "-m",
        "gpt-5.5",
        "-c",
        "model_reasoning_effort=\"xhigh\"",
        "--json",
        "-s",
        "danger-full-access",
        "--skip-git-repo-check",
        "-C",
        "C:\\Users\\ceyhu\\AppData\\Local\\Temp\\claude\\D--DelphiProjects-codexvsclaude\\2599569f-5b8d-46ad-966d-55c321734ab3\\scratchpad\\sandboxes\\gpt-5-5-xhigh\\10-py-pipeline-rescue",
        "--output-last-message",
        "bench\\runs\\2026-07-12\\10-py-pipeline-rescue__gpt-5-5-xhigh\\last-message.txt"
      ],
      "status": "ok",
      "exit_code": 0,
      "wall_seconds": 147.6,
      "started_at": "2026-07-12T19:59:32.042499+00:00",
      "finished_at": "2026-07-12T20:01:59.709959+00:00",
      "cli_report": {
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        "num_turns": 1
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      "grade": {
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        "all_pass": true,
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      },
      "integrity_ok": true,
      "files": {
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          "pipeline/__init__.py",
          "pipeline/source.py",
          "pipeline/transform.py"
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    },
    {
      "run": "10-py-pipeline-rescue__gpt-5-6-sol-xhigh",
      "task": "10-py-pipeline-rescue",
      "model_id": "gpt-5.6-sol",
      "display": "ChatGPT 5.6 Sol",
      "vendor": "openai",
      "cli": "codex",
      "config_note": "reasoning xhigh",
      "command": [
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        "exec",
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        "gpt-5.6-sol",
        "-c",
        "model_reasoning_effort=\"xhigh\"",
        "--json",
        "-s",
        "danger-full-access",
        "--skip-git-repo-check",
        "-C",
        "C:\\Users\\ceyhu\\AppData\\Local\\Temp\\claude\\D--DelphiProjects-codexvsclaude\\2599569f-5b8d-46ad-966d-55c321734ab3\\scratchpad\\sandboxes\\gpt-5-6-sol-xhigh\\10-py-pipeline-rescue",
        "--output-last-message",
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      "status": "ok",
      "exit_code": 0,
      "wall_seconds": 122.3,
      "started_at": "2026-07-12T19:59:32.041493+00:00",
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      },
      "integrity_ok": true,
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      "display": "ChatGPT 5.6 Terra",
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      },
      "integrity_ok": true,
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      "vendor": "anthropic",
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        "json",
        "--dangerously-skip-permissions",
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      "status": "ok",
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        "output_tail": "ss.test_zero) ... ok\ntest_budget_huge (tests.test_probes.FindEndDiscipline.test_budget_huge) ... ok\ntest_budget_moderate (tests.test_probes.FindEndDiscipline.test_budget_moderate) ... ok\ntest_budget_no_repeats (tests.test_probes.FindEndDiscipline.test_budget_no_repeats) ... ok\ntest_min_at_last (tests.test_probes.MinRotatedCorrectness.test_min_at_last) ... ok\ntest_min_at_one (tests.test_probes.MinRotatedCorrectness.test_min_at_one) ... ok\ntest_not_rotated (tests.test_probes.MinRotatedCorrectness.test_not_rotated) ... ok\ntest_single (tests.test_probes.MinRotatedCorrectness.test_single) ... ok\ntest_typical (tests.test_probes.MinRotatedCorrectness.test_typical) ... ok\ntest_budget_large (tests.test_probes.MinRotatedDiscipline.test_budget_large) ... ok\ntest_no_repeats_small (tests.test_probes.MinRotatedDiscipline.test_no_repeats_small) ... ok\ntest_absent (tests.test_probes.SearchCorrectness.test_absent) ... ok\ntest_empty (tests.test_probes.SearchCorrectness.test_empty) ... ok\ntest_first_and_last (tests.test_probes.SearchCorrectness.test_first_and_last) ... ok\ntest_hit_middle (tests.test_probes.SearchCorrectness.test_hit_middle) ... ok\ntest_budget_absent (tests.test_probes.SearchDiscipline.test_budget_absent) ... ok\ntest_budget_present (tests.test_probes.SearchDiscipline.test_budget_present) ... ok\ntest_no_repeats_small (tests.test_probes.SearchDiscipline.test_no_repeats_small) ... ok\n\n----------------------------------------------------------------------\nRan 20 tests in 0.001s\n\nOK\n"
      },
      "integrity_ok": true,
      "files": {
        "modified": [
          "probes.py"
        ],
        "added": []
      }
    },
    {
      "run": "17-js-window-agg__claude-fable-5",
      "task": "17-js-window-agg",
      "model_id": "claude-fable-5",
      "display": "Claude Fable 5",
      "vendor": "anthropic",
      "cli": "claude",
      "config_note": "default thinking",
      "command": [
        "cmd",
        "/c",
        "C:\\Users\\ceyhu\\AppData\\Roaming\\npm\\claude.CMD",
        "-p",
        "--model",
        "claude-fable-5",
        "--output-format",
        "json",
        "--dangerously-skip-permissions",
        "--setting-sources",
        "project",
        "--strict-mcp-config",
        "--max-turns",
        "80"
      ],
      "status": "ok",
      "exit_code": 0,
      "wall_seconds": 54.2,
      "started_at": "2026-07-12T23:35:48.234846+00:00",
      "finished_at": "2026-07-12T23:36:42.911874+00:00",
      "cli_report": {
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        "cost_usd": 0.71828,
        "is_error": false,
        "subtype": "success",
        "final_message": "All 18 tests pass. I implemented `createAggregator` in `windows.mjs` following the contract in TASK.md:\n\n- **Option/push validation** throws `TypeError` before any state changes, so rejected calls count nowhere in `stats()`.\n- **Window assignment** computes the hop indices `k` with `k*every <= ts < k*every + size`, clamped at `k >= 0` \u2014 this handles tumbling, overlapping-hop, and gap cases (a gap event is accepted but joins no window). Windows materialize lazily in a `Map` keyed by start.\n- **Late check** drops events with `ts < watermark - lateness` (boundary-exact acceptance per test 10); accepted events raise the watermark, then any tracked window with `end + lateness <= watermark` is closed and returned sorted ascending by `start`.\n- **`flush()`** emits all remaining windows in start order and marks the aggregator finished, after which `push`/`flush` throw an `Error` mentioning `flushed` while `stats()` keeps working.",
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        "output_tail": "d, one below is dropped\n  ---\n  duration_ms: 0.5256\n  type: 'test'\n  ...\n# Subtest: too-late events are dropped and leave every window untouched\nok 11 - too-late events are dropped and leave every window untouched\n  ---\n  duration_ms: 0.2431\n  type: 'test'\n  ...\n# Subtest: duplicate timestamps both count\nok 12 - duplicate timestamps both count\n  ---\n  duration_ms: 0.125\n  type: 'test'\n  ...\n# Subtest: sum, min, and max handle negative values\nok 13 - sum, min, and max handle negative values\n  ---\n  duration_ms: 0.1903\n  type: 'test'\n  ...\n# Subtest: lateness delays closing until the watermark clears end + lateness\nok 14 - lateness delays closing until the watermark clears end + lateness\n  ---\n  duration_ms: 0.148\n  type: 'test'\n  ...\n# Subtest: flush emits every remaining window ascending and finalizes\nok 15 - flush emits every remaining window ascending and finalizes\n  ---\n  duration_ms: 0.1598\n  type: 'test'\n  ...\n# Subtest: flush on an empty aggregator returns []\nok 16 - flush on an empty aggregator returns []\n  ---\n  duration_ms: 0.1131\n  type: 'test'\n  ...\n# Subtest: stats tracks pushed, accepted, dropped, emitted, and open\nok 17 - stats tracks pushed, accepted, dropped, emitted, and open\n  ---\n  duration_ms: 1.2652\n  type: 'test'\n  ...\n# Subtest: push or flush after flush throws\nok 18 - push or flush after flush throws\n  ---\n  duration_ms: 0.2651\n  type: 'test'\n  ...\n1..18\n# tests 18\n# suites 0\n# pass 18\n# fail 0\n# cancelled 0\n# skipped 0\n# todo 0\n# duration_ms 320.2825\n"
      },
      "integrity_ok": true,
      "files": {
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      "command": [
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        "-p",
        "--model",
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        "--output-format",
        "json",
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        "--setting-sources",
        "project",
        "--strict-mcp-config",
        "--max-turns",
        "80"
      ],
      "status": "ok",
      "exit_code": 0,
      "wall_seconds": 56.5,
      "started_at": "2026-07-12T23:36:39.188517+00:00",
      "finished_at": "2026-07-12T23:37:35.929653+00:00",
      "cli_report": {
        "reported_duration_ms": 54034,
        "num_turns": 6,
        "cost_usd": 0.3282805,
        "is_error": false,
        "subtype": "success",
        "final_message": "All 18 tests pass.\n\nI implemented `createAggregator` in `windows.mjs` following the TASK.md contract:\n\n- **Options validation** \u2014 rejects non-objects and non-conforming `size`/`every` (integer \u2265 1) and `lateness` (integer \u2265 0) with `TypeError`.\n- **`push(ts, value)`** \u2014 validates `ts` (non-negative safe integer) and `value` (finite number); applies the late-check against `watermark - lateness` (drop \u2192 count in `dropped`, return `[]`); otherwise raises the watermark, adds the value to every covering window (materializing on first event, clamping starts at 0, handling hop gaps), then closes and returns all windows where `end + lateness <= watermark` in ascending `start` order.\n- **`flush()`** \u2014 emits remaining windows ascending, then locks the aggregator so further `push`/`flush` throw an `Error` containing `flushed`.\n- **`stats()`** \u2014 returns a fresh `{ pushed, accepted, dropped, emitted, open }` snapshot.\n\nCovering-window starts are computed directly as the multiples of `every` in `(ts - size, ts]` rather than iterating all windows.",
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        "output_tail": "epted, one below is dropped\n  ---\n  duration_ms: 0.445\n  type: 'test'\n  ...\n# Subtest: too-late events are dropped and leave every window untouched\nok 11 - too-late events are dropped and leave every window untouched\n  ---\n  duration_ms: 0.1983\n  type: 'test'\n  ...\n# Subtest: duplicate timestamps both count\nok 12 - duplicate timestamps both count\n  ---\n  duration_ms: 0.0909\n  type: 'test'\n  ...\n# Subtest: sum, min, and max handle negative values\nok 13 - sum, min, and max handle negative values\n  ---\n  duration_ms: 0.135\n  type: 'test'\n  ...\n# Subtest: lateness delays closing until the watermark clears end + lateness\nok 14 - lateness delays closing until the watermark clears end + lateness\n  ---\n  duration_ms: 0.0951\n  type: 'test'\n  ...\n# Subtest: flush emits every remaining window ascending and finalizes\nok 15 - flush emits every remaining window ascending and finalizes\n  ---\n  duration_ms: 0.082\n  type: 'test'\n  ...\n# Subtest: flush on an empty aggregator returns []\nok 16 - flush on an empty aggregator returns []\n  ---\n  duration_ms: 0.067\n  type: 'test'\n  ...\n# Subtest: stats tracks pushed, accepted, dropped, emitted, and open\nok 17 - stats tracks pushed, accepted, dropped, emitted, and open\n  ---\n  duration_ms: 1.21\n  type: 'test'\n  ...\n# Subtest: push or flush after flush throws\nok 18 - push or flush after flush throws\n  ---\n  duration_ms: 0.1924\n  type: 'test'\n  ...\n1..18\n# tests 18\n# suites 0\n# pass 18\n# fail 0\n# cancelled 0\n# skipped 0\n# todo 0\n# duration_ms 144.8739\n"
      },
      "integrity_ok": true,
      "files": {
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    },
    {
      "run": "17-js-window-agg__claude-sonnet-5",
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      "model_id": "claude-sonnet-5",
      "display": "Claude Sonnet 5",
      "vendor": "anthropic",
      "cli": "claude",
      "config_note": "default thinking",
      "command": [
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        "/c",
        "C:\\Users\\ceyhu\\AppData\\Roaming\\npm\\claude.CMD",
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        "--model",
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        "--strict-mcp-config",
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        "80"
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      "status": "ok",
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      "started_at": "2026-07-12T23:36:25.510239+00:00",
      "finished_at": "2026-07-12T23:37:23.359508+00:00",
      "cli_report": {
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        "is_error": false,
        "subtype": "success",
        "final_message": "All 18 tests pass. `windows.mjs` now implements `createAggregator` with event-time hopping windows, late-event handling via watermark/lateness, and the required `push`/`flush`/`stats` API.",
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        "output_tail": "d, one below is dropped\n  ---\n  duration_ms: 0.87\n  type: 'test'\n  ...\n# Subtest: too-late events are dropped and leave every window untouched\nok 11 - too-late events are dropped and leave every window untouched\n  ---\n  duration_ms: 0.3873\n  type: 'test'\n  ...\n# Subtest: duplicate timestamps both count\nok 12 - duplicate timestamps both count\n  ---\n  duration_ms: 0.2051\n  type: 'test'\n  ...\n# Subtest: sum, min, and max handle negative values\nok 13 - sum, min, and max handle negative values\n  ---\n  duration_ms: 0.3287\n  type: 'test'\n  ...\n# Subtest: lateness delays closing until the watermark clears end + lateness\nok 14 - lateness delays closing until the watermark clears end + lateness\n  ---\n  duration_ms: 0.2358\n  type: 'test'\n  ...\n# Subtest: flush emits every remaining window ascending and finalizes\nok 15 - flush emits every remaining window ascending and finalizes\n  ---\n  duration_ms: 0.2037\n  type: 'test'\n  ...\n# Subtest: flush on an empty aggregator returns []\nok 16 - flush on an empty aggregator returns []\n  ---\n  duration_ms: 0.1641\n  type: 'test'\n  ...\n# Subtest: stats tracks pushed, accepted, dropped, emitted, and open\nok 17 - stats tracks pushed, accepted, dropped, emitted, and open\n  ---\n  duration_ms: 1.0008\n  type: 'test'\n  ...\n# Subtest: push or flush after flush throws\nok 18 - push or flush after flush throws\n  ---\n  duration_ms: 0.1804\n  type: 'test'\n  ...\n1..18\n# tests 18\n# suites 0\n# pass 18\n# fail 0\n# cancelled 0\n# skipped 0\n# todo 0\n# duration_ms 137.9969\n"
      },
      "integrity_ok": true,
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        "--json",
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        "C:\\Users\\ceyhu\\AppData\\Local\\Temp\\claude\\D--DelphiProjects-codexvsclaude\\0001c5ea-137b-4ea5-a65b-12941271e7b8\\scratchpad\\sandboxes\\gpt-5-5-xhigh\\17-js-window-agg",
        "--output-last-message",
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      "status": "ok",
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      "wall_seconds": 77.5,
      "started_at": "2026-07-12T23:35:40.716872+00:00",
      "finished_at": "2026-07-12T23:36:58.427128+00:00",
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        "output_tail": ", one below is dropped\n  ---\n  duration_ms: 0.3702\n  type: 'test'\n  ...\n# Subtest: too-late events are dropped and leave every window untouched\nok 11 - too-late events are dropped and leave every window untouched\n  ---\n  duration_ms: 0.1714\n  type: 'test'\n  ...\n# Subtest: duplicate timestamps both count\nok 12 - duplicate timestamps both count\n  ---\n  duration_ms: 0.0818\n  type: 'test'\n  ...\n# Subtest: sum, min, and max handle negative values\nok 13 - sum, min, and max handle negative values\n  ---\n  duration_ms: 0.1297\n  type: 'test'\n  ...\n# Subtest: lateness delays closing until the watermark clears end + lateness\nok 14 - lateness delays closing until the watermark clears end + lateness\n  ---\n  duration_ms: 0.085\n  type: 'test'\n  ...\n# Subtest: flush emits every remaining window ascending and finalizes\nok 15 - flush emits every remaining window ascending and finalizes\n  ---\n  duration_ms: 0.0766\n  type: 'test'\n  ...\n# Subtest: flush on an empty aggregator returns []\nok 16 - flush on an empty aggregator returns []\n  ---\n  duration_ms: 0.8137\n  type: 'test'\n  ...\n# Subtest: stats tracks pushed, accepted, dropped, emitted, and open\nok 17 - stats tracks pushed, accepted, dropped, emitted, and open\n  ---\n  duration_ms: 0.1321\n  type: 'test'\n  ...\n# Subtest: push or flush after flush throws\nok 18 - push or flush after flush throws\n  ---\n  duration_ms: 0.1337\n  type: 'test'\n  ...\n1..18\n# tests 18\n# suites 0\n# pass 18\n# fail 0\n# cancelled 0\n# skipped 0\n# todo 0\n# duration_ms 120.4268\n"
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        "final_message": "All 17 tests pass (`TESTS RAN=17 FAILED=0`).\n\nI implemented the SensorLink codec in `FrameCodec.pas`:\n\n- **`EncodeFrame`** builds `A5 5A | Kind | big-endian length | payload | sum2 | sum1`, raising `EFrameError` with \"too long\" for payloads over 1024 bytes. The Fletcher-16 checksum covers Kind, both length bytes, and the payload \u2014 not the magic \u2014 and is written trailer-order `sum2, sum1` as the golden vectors require.\n- **`DecodeStream`** scans byte-by-byte for the `$A5 $5A` pair, counting each non-matching byte (including a lone trailing `$A5`) in `SkippedBytes`. At a magic pair it handles the four spec cases exactly: fewer than 7 bytes left \u2192 `Truncated` and stop; declared length > 1024 \u2192 false header, skip only the `$A5` and rescan from the next byte; frame doesn't fit \u2192 `Truncated` and stop; checksum mismatch \u2192 `BadChecksum`, skip the whole `7+Len` candidate. Valid frames are appended with a copied payload and the cursor jumps past the frame, so magic bytes inside a locked payload are never re-scanned.",
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      "run": "18-delphi-framecodec__claude-opus-4-8",
      "task": "18-delphi-framecodec",
      "model_id": "claude-opus-4-8",
      "display": "Claude Opus 4.8",
      "vendor": "anthropic",
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        "--dangerously-skip-permissions",
        "--setting-sources",
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      "status": "ok",
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        "final_message": "All 17 tests pass.\n\nI implemented the SensorLink codec in `FrameCodec.pas`:\n\n- **`Fletcher16`** \u2014 a shared helper computing the running `sum1`/`sum2` mod-255 checksum over a byte range, used by both encode and decode so the logic can't drift.\n- **`EncodeFrame`** \u2014 writes magic `$A5 $5A`, Kind, big-endian length, payload, then `sum2` followed by `sum1`. The checksum covers Kind + length bytes + payload (indices 2..4+Len). Payloads over 1024 raise `EFrameError` with a \"too long\" message.\n- **`DecodeStream`** \u2014 a length-directed scanner implementing all six rules exactly: skip non-magic bytes (+1 SkippedBytes), detect truncation on short headers or incomplete frames (Truncated +1, remaining bytes skipped, stop), treat `Len > 1024` as a false header (skip one byte, resync at next byte after the `$A5`), flag checksum mismatches (BadChecksum +1, skip the whole candidate), and emit valid frames with a copied payload. Stats are zeroed up front so `nil` input yields all-zero stats.\n\nThe build ran via `tests\\build.cmd` unmodified.",
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          "output": 3756
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        "errors": 0,
        "passed": 17,
        "all_pass": true,
        "output_tail": "Embarcadero Delphi for Win32 compiler version 36.0\nCopyright (c) 1983,2025 Embarcadero Technologies, Inc.\n493 lines, 0.03 seconds, 142792 bytes code, 29740 bytes data.\nPASS encode_empty_golden\nPASS encode_payload_golden\nPASS encode_abc_golden\nPASS encode_length_bigendian\nPASS encode_max_1024_ok\nPASS encode_too_long_raises\nPASS decode_empty\nPASS decode_garbage_only\nPASS roundtrip_single\nPASS decode_leading_garbage\nPASS decode_two_frames_trailing_garbage\nPASS decode_bad_checksum_resync\nPASS decode_truncated_tail\nPASS decode_false_magic_bad_length\nPASS decode_payload_contains_magic\nPASS decode_magic_pair_at_eof\nPASS roundtrip_many_kinds\nTESTS RAN=17 FAILED=0\n"
      },
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        "modified": [
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        "added": []
      }
    },
    {
      "run": "18-delphi-framecodec__claude-sonnet-5",
      "task": "18-delphi-framecodec",
      "model_id": "claude-sonnet-5",
      "display": "Claude Sonnet 5",
      "vendor": "anthropic",
      "cli": "claude",
      "config_note": "default thinking",
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        "subtype": "success",
        "final_message": "All 17 tests pass. `FrameCodec.pas` now implements `EncodeFrame` (magic bytes, big-endian length, Fletcher-16 checksum) and `DecodeStream` (garbage-tolerant scanning with the exact resync rules from TASK.md).",
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      },
      "integrity_ok": true,
      "files": {
        "modified": [
          "FrameCodec.pas"
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        "added": []
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    },
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      "run": "18-delphi-framecodec__gpt-5-5-xhigh",
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      "model_id": "gpt-5.5",
      "display": "ChatGPT 5.5",
      "vendor": "openai",
      "cli": "codex",
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        "model_reasoning_effort=\"xhigh\"",
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        "danger-full-access",
        "--skip-git-repo-check",
        "-C",
        "C:\\Users\\ceyhu\\AppData\\Local\\Temp\\claude\\D--DelphiProjects-codexvsclaude\\0001c5ea-137b-4ea5-a65b-12941271e7b8\\scratchpad\\sandboxes\\gpt-5-5-xhigh\\18-delphi-framecodec",
        "--output-last-message",
        "bench\\runs\\2026-07-13\\18-delphi-framecodec__gpt-5-5-xhigh\\last-message.txt"
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      "status": "ok",
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      "run": "18-delphi-framecodec__gpt-5-6-sol-xhigh",
      "task": "18-delphi-framecodec",
      "model_id": "gpt-5.6-sol",
      "display": "ChatGPT 5.6 Sol",
      "vendor": "openai",
      "cli": "codex",
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      "command": [
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        "exec",
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        "gpt-5.6-sol",
        "-c",
        "model_reasoning_effort=\"xhigh\"",
        "--json",
        "-s",
        "danger-full-access",
        "--skip-git-repo-check",
        "-C",
        "C:\\Users\\ceyhu\\AppData\\Local\\Temp\\claude\\D--DelphiProjects-codexvsclaude\\0001c5ea-137b-4ea5-a65b-12941271e7b8\\scratchpad\\sandboxes\\gpt-5-6-sol-xhigh\\18-delphi-framecodec",
        "--output-last-message",
        "bench\\runs\\2026-07-13\\18-delphi-framecodec__gpt-5-6-sol-xhigh\\last-message.txt"
      ],
      "status": "ok",
      "exit_code": 0,
      "wall_seconds": 50.6,
      "started_at": "2026-07-12T23:36:24.042258+00:00",
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    {
      "run": "18-delphi-framecodec__gpt-5-6-terra-xhigh",
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        "-C",
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        "--output-last-message",
        "bench\\runs\\2026-07-13\\18-delphi-framecodec__gpt-5-6-terra-xhigh\\last-message.txt"
      ],
      "status": "ok",
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      },
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    },
    {
      "run": "19-cs-patch__claude-fable-5",
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      "display": "Claude Fable 5",
      "vendor": "anthropic",
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      "cli_report": {
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        "final_message": "All 19 tests pass on the first run (`TESTS RAN=19 FAILED=0`).\n\nI implemented `Patcher.Apply` in `Patcher.cs` in two phases, matching the contract's \"parse and validate everything before applying anything\" rule:\n\n- **Parsing** splits the patch on `\\n` (dropping one trailing empty entry), skips `--- `/`+++ ` file headers before the first hunk, and validates each hunk header against the exact `@@ -a,b +c,d @@` shape via regex \u2014 anything else where a header is expected throws `FormatException` mentioning `header`. Hunk bodies are read until exactly `b` old-side and `d` new-side lines are supplied, throwing `marker` errors for empty/unknown-marker lines and `count` errors for overruns or truncated bodies.\n- **Order validation** runs on the ranges actually consumed (`a,b` forward, `c,d` in reverse), requiring each anchor to be strictly greater than the previous hunk's last consumed line (or its anchor, for pure insertions).\n- **Applying** walks hunks copying unconsumed lines through, verifying ` ` and `-` lines against the source with ordinal comparison (mismatches throw `hunk <n>: context mismatch at source line <x>`), and appending `+` lines. Reverse mode swaps the ranges and the `+`/`-` roles while preserving body order. The result is always a fresh array and the source is never touched.",
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      },
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        "output_tail": "Embarcadero Delphi for Win32 compiler version 36.0\nCopyright (c) 1983,2025 Embarcadero Technologies, Inc.\n656 lines, 0.03 seconds, 143720 bytes code, 29812 bytes data.\nPASS initial_state\nPASS negative_amount_raises\nPASS submit_from_draft\nPASS withdraw_from_draft\nPASS approve_small_amount_l1\nPASS approve_boundary_500_l1\nPASS approve_boundary_5000_l2\nPASS approve_large_needs_l3\nPASS denied_approve_can_retry\nPASS pay_requires_l2\nPASS illegal_pay_from_draft\nPASS illegal_approve_from_draft\nPASS illegal_in_terminal_paid\nPASS withdraw_from_approved_is_illegal\nPASS withdraw_from_submitted\nPASS amend_from_rejected\nPASS amend_from_draft_is_illegal\nPASS level_validation_consumes_nothing\nPASS audit_line_out_of_range\nPASS golden_transcript_boundary_flow\nTESTS RAN=20 FAILED=0\n"
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        "final_message": "All 20 tests pass. Implemented `diff` and `apply` in `vdom.mjs` per the normative spec: text/replace/set/unset ops for node-level changes, and unkeyed (positional) vs keyed (move-aware) child reconciliation with the specified walk algorithm, plus a pure `apply` that clones nodes to avoid sharing/mutating inputs and validates paths/indexes.",
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