Two decisions from cart osprey in loom-cli, and this repository had nowhere to record them until now. 404 is named as two answers wearing one status, filed as a gap using this document's own test and correctly ours to close. And the correction that matters: a facet describes the local pair. A gap is true of the copy you hold rather than the document upstream, so a publisher fixing their end does not close it — we nearly deleted a consumer's .gaps.md on exactly that mistake. It follows from the thing this convention rests on, that the copy is theirs and everything beside it is ours, which we had not followed through to reconciliation. A gap closes at reconciliation, not at repair. With the consequence we would not have reached: what survives is not the gap but what the gap justified. A workaround is often not retired by a fix — it stops being a workaround and becomes specified behaviour, unchanged in code and entirely changed in status, which is invisible where the code is and therefore an entry in the consumer's own log. And a closed gap is not a decline: opposite sign, and filing one as the other puts a thing you wanted into a list of things you rejected. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
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Event log
Decisions about this convention. Appended, newest last, never revised. An entry states what was decided, what it is believed to advance, and the belief that could turn out false.
Decided (2026-09-07, loom + claude-substrate — discovered, cart: osprey):
404 is named in the convention as two answers wearing one status, and a
client reports both readings rather than picking one.
Advances a consumer not being told the wrong one of the document was withdrawn and you no longer have access.
Because it was filed as a gap against this document by loom-cli, using this
document's own test — could you say whose job it is? It was ours. The
table listed 304, 200 and 410 and not 404, while a host returns 404
for both readings by design: one that distinguished them would leak the
existence of things you may not see.
Over ssh they are distinguishable — permission denied against repository not found — so a client with both transports should say which it used.
Decided (2026-09-07, loom + claude-substrate — discovered, cart: osprey):
a facet describes the local pair. A gap is true of the copy you hold, not of
the document upstream, so a publisher fixing their end does not close it.
Advances a consumer's tree never describing a document that is not in it.
Because we nearly deleted a consumer's .gaps.md on the grounds that the
upstream document had been repaired. Their copy still lacked the row. The
second presence in osprey caught it, and the general form follows from the thing
this whole convention rests on — the copy is theirs and everything beside it is
ours — which we had not followed through to reconciliation.
So a gap closes at reconciliation, not at repair.
And the consequence we would not have reached: what survives is not the gap, it is what the gap justified. A workaround is often not retired by a fix — it stops being a workaround and becomes the specified behaviour, unchanged in the code and entirely changed in status. That change is invisible where the code is, so it is an entry in the consumer's own log — otherwise somebody inheriting the workaround goes looking for the gap that justified it and finds nothing.
A closed gap is not a decline: a decline is what you considered and did not do; a closed gap is what you needed and got. Opposite sign, and filing one as the other puts a thing you wanted into a list of things you rejected.