ALL-HIST0003 · examples

These examples come directly from ALL-HIST0003. Read their source.

Bad

A `serializer` and a `parser` that changed together in nine of the eleven commits either one
saw, neither importing the other. They share a wire format that is written down nowhere, so
every change to one silently owes a change to the other.

Good

The same two files after the format moves into a schema both import. They still change together, the import now says why, and a reader who opens one is told about the other.