Open Soruce

AI Development Tools

What I Learned Building a Document Format from Scratch

I started thinking the hard problem was document parsing. Then format design. Then sync logic. The real challenge was building at the interface between two domains that don't talk to each other.

AI Development Tools

The Design Decisions Behind an AI-Native Document Format

Processing a Word document through raw OOXML costs 359,706 prompt tokens. Clean markdown costs 106. Five design decisions that make that gap useful without losing formatting.