graph TD
A[Start: Read download_log.json] --> B[Initialize thumbnails array]
B --> C[Loop through each URL/path pair]
C --> D[Skill #202: Extract Thumbnails]
D --> E[Save 10 thumbnail images]
E --> F[Add entry to thumbnails array]
F --> G{More videos?}
G -->|Yes| C
G -->|No| H[Write thumbnails_log.json]
H --> I[Skill #223: Generate Summary]
I --> J[Write thumbnails_summary.txt]
J --> K[End: Return files and logs]
subgraph Silo 1: Per-Video Processing
C
D
E
F
G
end
subgraph Silo 2: Consolidation
H
I
J
end