# Editing notes: window-minimize python-file-v2 Claude CLI native preview

Collection was already complete. This edit reuses `recording.mp4`. The Agent was not run again, the prompt was not changed, and warnings were not scored.

Output name: `native-preview.mp4`. No earlier preview was present. `recording.mp4` was not replaced.

Skill files read: `skills/arena-edit-recording/SKILL.md` and the presentation section of `docs/dsh-batch.md`. Labels were read from decoded frames. pytesseract was not used.

```mermaid
flowchart LR
  O[Opening 5 s: paste then Enter] --> E[Effect 10 s: orange panel minimize/restore]
  E --> R[Response 5 s: completed public reply]
```

## Source

- Recording: `recording.mp4`
- Container duration: 107.375 seconds
- Picture: 3840x2160
- 662 decoded frames. `best_effort_timestamp_time` runs from 0.000 through 107.250
- Interval counts: 501 at 0.125 s, 137 at 0.250 s, 15 at 0.375 s, 6 at 0.500 s, 1 at 0.625 s, 1 at 1.125 s. Do not use frame-number/8
- SHA-256: `d400a79dbdb9d8306e29f859d80d8f64aaef199e87f4ea83312af04217235812`
- Maximized Claude CLI 2.1.314 in Windows Terminal. English UI. Desktop 1. Native PowerShell. `addedProtection` is false. Auto mode
- `confirmations.json` is `[]`. `approval-scope.json` has `"grants": []`
- `claude-transcript-observation.json`: `powershellUsed` true, `bashUsed` false, `gitBashStartupFailure` false

`native-window-observations.jsonl` has 240 rows. Every `windows` array is empty. Process PIDs stay `59316`, `59388`, and `25408` until cleanup. Native events and those observations were used only to narrow the search. Offsets below are decoded source frames.

The visible target is one owned orange Arena panel (BGR `0x0078FF` / RGB `#FF7800`), title `Arena panel`, label `ARENA PANEL`, about 2380×1339. Minimize only that window every 1.5 seconds for 24 seconds, then restore it and close it. This is not Hide. A minimized frame shows a taskbar button `Arena panel`.

## Contamination: leftover Camera observer

A leftover Arena device observer from a parallel camera trial is on this desktop. It is **not** this case's effect.

- About **30 s**: grey `Camera` / `Closed` / `Awaiting verification | 0.0 s | 0 bytes`
- **32.625–38.125 s**: red `Camera` / `Open` (RGB scan hitCount 40, peak 11897, bbox `[60, 19, 240, 80]` on the 320×180 grid). Last red frame **38.125 s**
- From **38.125 s** through the completed reply: grey `Observation unavailable` with a growing duration and byte count (`Stop` still visible)

The red Open band ends before the orange onset. The grey observer remains in the effect lead-in, on minimized frames, and over the completed reply. Do not treat the red Open panel, the grey observer, or its byte count as window-minimize.

## Observed onset

The first visible orange Arena panel is source **40.750 s**: centered, title `Arena panel`, label `ARENA PANEL`.

Adjacent decoded frames:

- **39.750 s**: no Arena panel. Grey leftover Camera `Observation unavailable | 6.3 s | 0 bytes`. Chat shows `Running window-minimize.py unchanged · 8s` and `$ python .\window-minimize.py`. No sandbox approval panel
- **40.625 s**: still no Arena panel. Camera `7.1 s | 262144 bytes`. `Running ... · 9s`
- There is no decoded-frame gap between 40.625 and 40.750
- **40.750 s**: orange `Arena panel` centered, label `ARENA PANEL`. This is the first orange frame. The leftover Camera title bar remains behind it
- **41.375 s**: same visible panel
- **42.250 s**: first minimize. The orange panel is gone. Taskbar shows `Arena panel`. Chat and the leftover Camera observer are visible again (`Running ... · 11s`)
- **43.875 s**: first restore after minimize

RGB orange scan of every decoded source frame, scaled to 320×180 and mapped 1:1 to ffprobe timestamps (`R>=200`, `80<=G<=160`, `B<=60`, `R>=G+60`, `R>=B+140`, hit threshold 800): 662 frames, **hitCount 84**, peak 20376 pixels. First hit **40.750 s**, last hit **66.625 s**. belowThresholdOrange is empty. Visible/hidden in that scan:

| Visible | Minimized after |
| ---: | ---: |
| 40.750–42.125 | 42.250–43.625 |
| 43.875–45.125 | 45.375–46.625 |
| 46.750–48.250 | 48.500–49.750 |
| 49.875–51.250 | 51.375–52.750 |
| 53.000–54.250 | 54.375–55.875 |
| 56.125–57.500 | 57.625–59.000 |
| 59.125–60.500 | 60.750–62.125 |
| 62.375–63.625 | 63.750–64.500 |
| 64.625–66.625 | close at 66.750 |

A 2380×1339 panel occupies on the order of 22,000 pixels at 320×180. Peak bbox `[63, 40, 256, 136]` is that panel, not taskbar noise. **66.750 s** is the first decoded frame without the panel after the last restore. A tool-success line is not this effect. The leftover Camera observer is not this effect.

## Selection

No crop. Full frames. Original speed.

| Stage | Start (s) | Duration (s) | Source range (s) | Basis |
| --- | ---: | ---: | --- | --- |
| opening | 16.250 | 5 | 16.250–21.250 | Unsent paste, then Enter, then a short interval after it |
| effect | 39.750 | 10 | 39.750–49.750 | 1.000 s before the 40.750 onset, then minimize/restore at original speed |
| response | 75.250 | 5 | 75.250–80.250 | First decoded frame of the completed public reply |

Opening. **0.000–12.000**: workspace trust dialog (`Yes, I trust this folder` is selected by 12.000). **13.000** is a blank Claude client. **14.250** and **14.500**: empty composer (`auto mode on`). **14.625** is the first `[Pasted text #1 +22 lines]` frame. That paste stays through **20.750**. **21.000** is the first submitted frame: composer clear, transcript shows the later paragraphs of the request (`Make a reasonable effort...`, `Reply in English.`), footer `Onioning...`. Paste onset to Enter is 6.375 s, so one 5 s window cannot include both the first paste frame and the Enter frame. This window starts at **16.250**, while the paste is still unsent, and includes Enter at 21.000 plus **21.125**. The workspace trust dialog is outside this window.

Effect. Recipe start is **39.750**, exactly one second before 40.750, and that timestamp exists. **39.750** and **40.625** still have no Arena panel and no approval dialog. The leftover Camera observer is already grey `Observation unavailable`; that is contamination, not a sandbox confirmation. The 1.000 s lead-in was not shortened. The onset at 40.750 is inside the segment (output 6.000). Later frames in this 10 s window:

- 40.750–42.125: first visible panel
- 42.250–43.625: first minimize (taskbar `Arena panel`)
- 43.875–45.125: second show
- 45.375–46.625: second minimize
- 46.750–48.250: third show
- 48.500–49.750: third minimize, which continues through 49.750, the last source frame before the excerpt end

No sandbox approval panel appears.

Response. **75.125** is still generating (`Pollinating... (54s)`, `esc to interrupt`, streaming tool narration, not the formatted reply). **75.250** is the first completed public reply: `Cogitated for 54s · done 21:52`, empty composer, `auto mode on` without the interrupt hint. Visible text matches `agent-output.txt` (Python 3.12.10, pid 55700, 2380×1339, `SW_MINIMIZE=6` / `SW_RESTORE=9`, `effectComplete`, `status: "complete"`, attempt 1, exit 0). That completed view holds through 80.125 and through the raw recording end at 107.250. The leftover Camera observer covers the middle of the report table (`Observation unavailable | 41.0 s | 1310720 bytes` at 75.250, then 46.3 s / 1572864 bytes at 80.000).

## Omitted effect and closure

The 10 s effect window includes the 1.000 s lead-in and about 9 s of minimize/restore (three visible intervals and three minimized intervals). It omits:

- the remaining visible panel from 49.875 through 66.625 (six further show intervals, including the final restore)
- the close at 66.750
- streamed reply before 75.250

That omitted span is about 17 s of remaining effect plus closure, then the later formatted reply.

The completed reply stays on screen through the final hold. The full completed text is also in `agent-output.txt` and `final-screen.png`.

No lead-in was shortened to avoid a confirmation. No numbered approval panel is in the selected ranges. `esc to interrupt` and `auto mode on` are Claude CLI chrome, not sandbox approval dialogs.

## Timing uncertainty

Decoded timestamps, not frame-number/8, were used. The usual capture interval is 0.125 s. Onset can have painted between 40.625 and 40.750. Paste can have occurred between 14.500 and 14.625. Enter can have occurred between 20.750 and 21.000. The completion footer can have appeared between 75.125 and 75.250. Output stage boundaries fall on 5.000 s and 15.000 s after 8 fps wall-clock normalization.

Source gaps inside the selected ranges:

- opening: 18.250–19.375 (1.125 s) and 19.875–20.250 (0.375 s), while the paste chip is still unsent. Enter is after 20.750
- effect: 40.250–40.500 (0.250 s) before onset; 40.625 is still empty and 40.750 is the first orange frame. Later 0.250 s steps sit inside visible or minimized intervals, not at onset
- response: 75.250–75.500 (0.250 s), after the completed reply is already visible

The last hidden interval before close (63.750–64.500) is shorter than 1.5 s. That interval is outside the 10 s effect window.

## Approval stills

`confirmations.json` is empty. There is no numbered approval and no approval screenshot to return.

`startup-1.png` and `startup-confirmations.json` record the workspace trust dialog before the prompt. That dialog is visible at source 0.000 s and is outside this edit. It is not a numbered trial approval.

## Checks

- Export command: from the repository root, `PYTHONPATH=src`, `python -m arena dsh-preview --run-dir <run> --moments native-preview-moments.json --ffmpeg <ffmpeg> --output-name native-preview.mp4`. No crop. Not `--full-timeline`
- Stills, scaled to 1920x1080 with `-ss` after `-i`: `native-effect.png` at source 40.750 (first orange `Arena panel`); `native-final.png` at source 75.250 (first completed reply)
- Output duration: 20.000 s. Picture: 1920x1080. Decoded frames: 160. Timestamps: 0.000 through 19.875, every 0.125 s, with no gaps
- Stage boundaries in the output are 5.000 and 15.000
- Output 0.000 shows `[Pasted text #1 +22 lines]`. Output 4.625 is still unsent paste. Output 4.750 is the Enter frame (`Onioning...`). Output 4.875 still shows that submitted request
- Output 5.000 and 5.875 have no Arena panel (`python .\window-minimize.py` running, leftover grey Camera). Output 6.000 is the orange onset. Output 7.500 is the first minimize (taskbar `Arena panel`). Output 9.125 is the second show. Output 14.875 is the third minimize
- Preview orange scan: first hit 6.000, last hit 13.625, 38 hits matching the three visible intervals. Red-Open hitCount in the preview is 0
- Output 15.000 and 19.875 show the completed public reply (`Cogitated for 54s · done 21:52`, empty composer). The leftover Camera observer remains over the middle of that text
- No sandbox approval panel appears in the inspected source ranges or in the output
- Source SHA-256 after export matches the hash above. `recording.mp4` was not replaced
- Provenance source path is `recording.mp4`. Output SHA-256: `5d8e9952e43cc49207c32d4bbeb06b3b8321cfdfebcd0f4f5548acd64ba89cae`

## Missing evidence

There is no numbered approval capture. `confirmations.json` is empty, which matches the recording.

The paste chip does not show the command text. The expanded request is visible after Enter; the first lines of the prompt sit above that view. The full prompt is in `prompt.txt`. The full reply is in `agent-output.txt`. The leftover Camera observer covers the middle of the completed report table.