Welllll... I gave Opus 4.6 the repository and a sample .mono export and it nailed the file format. There's something to be said about tools and formats that are easy for human-AI end-to-end operation.

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                │  "MonoSketch — Draw ASCII Diagrams"  │              
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      │     Skip straight      │            │      Hmm, this is      │
      │    to the comments     │            │ actually kind of cool  │
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      │    take as your own    │            │  myself in a weekend?  │
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              │         │                          (alway│ yes)       
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    │  Vim + sed"  │  │   in 1997"   │       │    Start rewriting     │
    └──────────────┘  └──────────────┘       │ it in Rust, obviously  │
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      │       confidence       │            │    exactly 2 hours     │
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                    │                        │    Star the repo on    │
                    │                        │     GitHub anyway      │
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            ┃             Repeat tomorrow with a             ┃         
            ┃           completely different tool            ┃         
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