The 4a stub speaks Claude stream-json, whose adapter writes no diff items, so
completed diff originals were a skipped row. The seed now appends known
diffs once into its last filler chat through the seed arm's own original
journal writer, after that arm stops and before the seed is renamed or
copied, so every arm starts from the same rows and item IDs. Both arms verify
kind, original length, a short page head and the exact patch from detail
before timing the tail page and the detail read, and the conversion sweep
reports the diff chat apart from the small chats.
Brennan Benson
d724950c7e