Record unique hard-negative YOLO candidate gate

CHANGELOG.md

@@ -7,6 +7,15 @@
 
 # Changelog
 
+## Sprint 146 Unique hard-negative YOLOv8s candidate gate (2026-07-09)
+
+- Fixed the all-in-one Docker image so the operator YOLO training wrapper is available at `/app/scripts/train_operator_yolo_detector.sh`.
+- Trained the Tower-local `geointel-building-yolov8s-uniquehardneg160e50-pt` candidate from the `yolo-building-tile-uniquehardneg160` dataset and preserved it as an explicit local model asset.
+- Ran 7 positive AOI calibration sweeps, a 17,008-feature evidence portfolio, a 9-sample hard-negative/background matrix and a promotion report.
+- Result: the candidate is rejected. Mean positive F1 remains around `0.16` and background false-positive pressure reaches `58` detections at threshold `0.25`, `85` at `0.15` and `172` at `0.05`.
+- Hardened the operator promotion report so older positive evidence portfolios can be compared with explicit positive tile-size/overlap defaults.
+- No API contract, migration, frontend behavior, model download, provider-fetching behavior or active model configuration changed.
+
 ## Sprint 145 YOLOv8s hardneg r8 e60 full candidate evaluation (2026-07-08)
 
 - Completed the Tower-local YOLOv8s hard-negative r8 training run through 60 CPU epochs and published local model asset `geointel-building-yolov8s-hardneg160r8e60-pt`.

backend/tests/test_sprint143_detection_model_promotion_report.py

@@ -167,3 +167,88 @@ def test_detection_model_promotion_report_combines_positive_and_background_gates
     assert "candidate-clean" in markdown
     assert "candidate-leaky" in markdown
     assert "background_false_positive_pressure" in markdown
+
+
+def test_detection_model_promotion_report_uses_portfolio_and_tile_defaults(
+    tmp_path: Path,
+) -> None:
+    script_path = ROOT / "scripts" / "build_detection_model_promotion_report.py"
+
+    positive_path = tmp_path / "positive_portfolio.json"
+    positive_path.write_text(
+        json.dumps(
+            {
+                "portfolio_name": "Positive AOI portfolio",
+                "model_asset_id": "candidate-from-portfolio",
+                "samples": [
+                    {
+                        "sample_slug": "geel",
+                        "runs": [
+                            {
+                                "model_asset_id": None,
+                                "tile_size": None,
+                                "tile_overlap": None,
+                                "threshold": 0.25,
+                                "precision": 0.7,
+                                "recall": 0.42,
+                                "f1_score": 0.525,
+                            }
+                        ],
+                    }
+                ],
+            }
+        ),
+        encoding="utf-8",
+    )
+
+    background_path = tmp_path / "hard_negative_matrix_summary.json"
+    background_path.write_text(
+        json.dumps(
+            {
+                "items": [
+                    {
+                        "sample_slug": "postel_bos",
+                        "model_asset_id": "candidate-from-portfolio",
+                        "tile_size": 640,
+                        "tile_overlap": 64,
+                        "threshold": 0.25,
+                        "detection_count": 0,
+                    }
+                ]
+            }
+        ),
+        encoding="utf-8",
+    )
+
+    output_dir = tmp_path / "promotion-report"
+    subprocess.run(
+        [
+            "python",
+            str(script_path),
+            "--positive-portfolio",
+            str(positive_path),
+            "--hard-negative-summary",
+            str(background_path),
+            "--output-dir",
+            str(output_dir),
+            "--min-positive-samples",
+            "1",
+            "--min-background-samples",
+            "1",
+            "--min-mean-f1",
+            "0.35",
+            "--max-background-detections-per-sample",
+            "0",
+            "--default-positive-tile-size",
+            "640",
+            "--default-positive-tile-overlap",
+            "64",
+        ],
+        cwd=ROOT,
+        check=True,
+        text=True,
+        capture_output=True,
+    )
+
+    report = json.loads((output_dir / "detection_model_promotion_report.json").read_text(encoding="utf-8"))
+    assert report["recommended_candidate"]["candidate_key"] == "candidate-from-portfolio|640|64|0.25"

docs/CODEX_EXECUTION_LOG.md

@@ -1,3 +1,51 @@
+## Sprint 146 Unique hard-negative YOLOv8s candidate gate (2026-07-09)
+
+Changed:
+- Fixed the all-in-one Docker runtime so `/app/scripts/train_operator_yolo_detector.sh` is copied into the image and made executable.
+- Added regression coverage in `backend/tests/test_docker_runtime_config.py` so the all-in-one image must include the operator YOLO training wrapper.
+- Hardened `scripts/build_detection_model_promotion_report.py` with explicit `--default-positive-tile-size` and `--default-positive-tile-overlap` options for older positive evidence portfolios that record the model at portfolio level but omit per-run tile provenance.
+- Added regression coverage in `backend/tests/test_sprint143_detection_model_promotion_report.py` for portfolio-level model fallback plus explicit positive tile defaults.
+
+Tested:
+- Red step: `python -m pytest backend\tests\test_docker_runtime_config.py::test_all_in_one_dockerfile_copies_operator_scripts_for_runtime_use -q` failed because the all-in-one Dockerfile did not copy the training wrapper.
+- `python -m pytest backend\tests\test_docker_runtime_config.py -q` (`22 passed`)
+- `bash scripts/run_readiness_check.sh` (`423 passed`; frontend typecheck/build passed; Alembic head `202606120900`)
+- Pushed commit `afd2cba` and redeployed Tower with `.\scripts\deploy_tower.ps1 -InstallAi true`; browser runtime verification and live migration smoke passed.
+- Verified the wrapper in the live container: `/app/scripts/train_operator_yolo_detector.sh` exists and is executable.
+- Trained `geointel-building-yolov8s-uniquehardneg160e50-pt` on Tower from `/app/storage/operator-data/yolo-building-tile-uniquehardneg160/dataset.yaml` using local `/app/models/yolov8s.pt`, 50 CPU epochs, image size `160`, batch `8`.
+- Training completed with final validation precision `0.38`, recall `0.365`, mAP50 `0.278`, mAP50-95 `0.0803`.
+- Live model asset:
+  - `/app/models/geointel-building-yolov8s-uniquehardneg160e50.pt`
+  - model asset id `geointel-building-yolov8s-uniquehardneg160e50-pt`
+  - SHA256 `c4e480273d3da5fc27532cd8bdc3fa7786582e06848ea11b56714ab8cb1750b3`
+- Ran 7-AOI positive calibration sweeps for Geel, Mol, Turnhout, Herentals, Balen, Retie and Westerlo:
+  - output root `/mnt/user/appdata/geointel/artifacts/detection-calibration/uniquehardneg160e50-positive`
+  - best observed AOI result: Westerlo threshold `0.25`, F1 `0.384180790960452`, precision `0.5177664974619289`, recall `0.30538922155688625`, detections `197`
+  - other positive AOIs remained weak, with best F1 roughly `0.10` to `0.17`.
+- Assembled positive evidence portfolio:
+  - output `/mnt/user/appdata/geointel/artifacts/detection-calibration-portfolio/uniquehardneg160e50-positive/calibration_evidence_portfolio.json`
+  - sample count `7`
+  - evidence features `17008`
+  - role counts `false_negative=9710`, `false_positive=4734`, `match_candidate=1282`, `match_reference=1282`
+- Ran 9-sample hard-negative/background matrix:
+  - output `/mnt/user/appdata/geointel/artifacts/detection-hard-negatives/uniquehardneg160e50/hard_negative_matrix_summary.json`
+  - threshold `0.25`: total background detections `98`, max sample detections `58`
+  - threshold `0.15`: total background detections `137`, max sample detections `85`
+  - threshold `0.05`: total background detections `276`, max sample detections `172`
+- Red step: `python -m pytest backend\tests\test_sprint143_detection_model_promotion_report.py -q` failed because the promotion report could not yet accept explicit positive tile defaults.
+- `python -m pytest backend\tests\test_sprint143_detection_model_promotion_report.py -q` (`2 passed`)
+- Rebuilt the promotion report using explicit positive tile defaults:
+  - output `/mnt/user/appdata/geointel/artifacts/detection-model-promotion/uniquehardneg160e50-positive-vs-hard-negative-v2/detection_model_promotion_report.json`
+  - threshold `0.05`: rejected for `positive_mean_f1_below_gate` and `background_false_positive_pressure`, mean F1 `0.15797188547918842`, max background detections `172`
+  - threshold `0.15`: rejected for the same reasons, mean F1 `0.1598974047548654`, max background detections `85`
+  - threshold `0.25`: rejected for the same reasons, mean F1 `0.15967766715169612`, max background detections `58`
+  - recommended candidate `none`
+
+Open:
+- Do not activate `geointel-building-yolov8s-uniquehardneg160e50-pt` as the V1 default.
+- The candidate improves some individual AOIs but still combines low mean positive F1 with unacceptable false-positive pressure on background samples.
+- Next model work should focus on materially better training data/model strategy, not another default activation attempt with this artifact.
+
 ## Sprint 145 YOLOv8s hardneg r8 e60 full candidate evaluation (2026-07-08)
 
 Changed:

docs/TODO.md

@@ -108,6 +108,7 @@ This file now starts with the current implementation status. Older preparation/b
 - [x] Add a hard-negative model-quality pass with sparse/background AOIs and explicit false-positive scoring.
 - [x] Train a hard-negative-balanced YOLO candidate and rerun dense QA plus background false-positive matrices.
 - [x] Benchmark an external remote-sensing YOLOv8l building candidate as an explicit local model asset.
+- [x] Train and gate the `uniquehardneg160e50` YOLOv8s candidate through 7 positive AOIs and 9 hard-negative/background samples.
 - [ ] Find or train a materially stronger aerial/Kempen building model candidate; `geointel-building-yolov8n-expanded160e50-pt` is the best current dense-AOI candidate but still too weak and too noisy for a V1 default.
 - [ ] Train a higher-capacity local aerial-building detector with stronger positive recall while preserving the hard-negative false-positive gate.
 

scripts/README.md

@@ -603,6 +603,23 @@ and maximum background detections per sample. It is evidence/report tooling
 only: it does not run inference, mutate application data, download models or
 change the active YOLO configuration.
 
+If a legacy positive evidence portfolio records `model_asset_id` at portfolio
+level but does not include per-run tile size/overlap, pass explicit tile
+defaults instead of letting the report guess:
+
+```bash
+python scripts/build_detection_model_promotion_report.py \
+  --positive-portfolio /mnt/user/appdata/geointel/artifacts/detection-calibration-portfolio/uniquehardneg160e50-positive/calibration_evidence_portfolio.json \
+  --hard-negative-summary /mnt/user/appdata/geointel/artifacts/detection-hard-negatives/uniquehardneg160e50/hard_negative_matrix_summary.json \
+  --output-dir /mnt/user/appdata/geointel/artifacts/detection-model-promotion/uniquehardneg160e50-positive-vs-hard-negative \
+  --min-positive-samples 7 \
+  --min-background-samples 9 \
+  --min-mean-f1 0.25 \
+  --max-background-detections-per-sample 0 \
+  --default-positive-tile-size 640 \
+  --default-positive-tile-overlap 64
+```
+
 Clean old offline demo export artifacts without touching uploaded source data:
 
 ```bash

scripts/build_detection_model_promotion_report.py

@@ -47,6 +47,18 @@ def parse_args() -> argparse.Namespace:
     parser.add_argument("--min-background-samples", type=int, default=3)
     parser.add_argument("--min-mean-f1", type=float, default=0.25)
     parser.add_argument("--max-background-detections-per-sample", type=int, default=0)
+    parser.add_argument(
+        "--default-positive-tile-size",
+        type=int,
+        default=None,
+        help="Tile size to use for positive portfolio runs that do not record tile_size.",
+    )
+    parser.add_argument(
+        "--default-positive-tile-overlap",
+        type=int,
+        default=None,
+        help="Tile overlap to use for positive portfolio runs that do not record tile_overlap.",
+    )
     return parser.parse_args()
 
 
@@ -56,15 +68,23 @@ def read_json(path: Path) -> dict[str, Any]:
     return json.loads(path.read_text(encoding="utf-8-sig"))
 
 
-def as_candidate_key(item: dict[str, Any]) -> CandidateKey | None:
-    model_asset_id = item.get("model_asset_id") or item.get("model_request")
+def as_candidate_key(
+    item: dict[str, Any],
+    *,
+    fallback_model_asset_id: str | None = None,
+    fallback_tile_size: int | None = None,
+    fallback_tile_overlap: int | None = None,
+) -> CandidateKey | None:
+    model_asset_id = item.get("model_asset_id") or item.get("model_request") or fallback_model_asset_id
     if not model_asset_id:
         return None
     try:
         return CandidateKey(
             model_asset_id=str(model_asset_id),
-            tile_size=int(item.get("tile_size")),
-            tile_overlap=int(item.get("tile_overlap")),
+            tile_size=int(item.get("tile_size") if item.get("tile_size") is not None else fallback_tile_size),
+            tile_overlap=int(
+                item.get("tile_overlap") if item.get("tile_overlap") is not None else fallback_tile_overlap
+            ),
             threshold=float(item.get("threshold")),
         )
     except (TypeError, ValueError):
@@ -81,12 +101,23 @@ def numeric(item: dict[str, Any], key: str) -> float | None:
         return None
 
 
-def collect_positive_runs(portfolio: dict[str, Any]) -> dict[CandidateKey, list[dict[str, Any]]]:
+def collect_positive_runs(
+    portfolio: dict[str, Any],
+    *,
+    default_tile_size: int | None = None,
+    default_tile_overlap: int | None = None,
+) -> dict[CandidateKey, list[dict[str, Any]]]:
     best_by_candidate_sample: dict[tuple[CandidateKey, str], dict[str, Any]] = {}
+    portfolio_model_asset_id = portfolio.get("model_asset_id")
     for sample in portfolio.get("samples") or []:
         sample_slug = str(sample.get("sample_slug") or "unknown")
         for run in sample.get("runs") or []:
-            key = as_candidate_key(run)
+            key = as_candidate_key(
+                run,
+                fallback_model_asset_id=str(portfolio_model_asset_id) if portfolio_model_asset_id else None,
+                fallback_tile_size=default_tile_size,
+                fallback_tile_overlap=default_tile_overlap,
+            )
             f1 = numeric(run, "f1_score")
             if key is None or f1 is None:
                 continue
@@ -136,7 +167,11 @@ def build_decisions(args: argparse.Namespace) -> dict[str, Any]:
     portfolio_path = Path(args.positive_portfolio)
     positive_portfolio = read_json(portfolio_path)
     background_paths = [Path(path) for path in args.hard_negative_summary]
-    positive = collect_positive_runs(positive_portfolio)
+    positive = collect_positive_runs(
+        positive_portfolio,
+        default_tile_size=args.default_positive_tile_size,
+        default_tile_overlap=args.default_positive_tile_overlap,
+    )
     background = collect_background_runs(background_paths)
 
     decisions = []