oficina / memoria Public

🤖 spec: the search-page ruling survives, its argument does not

Fable's second pass, REQUEST CHANGES, 5 MAJOR / 4 MINOR / 1 NIT, all
applied. §1.6 records it. The ruling in decision 14 stands; almost
everything I said to justify it was wrong, and two of the errors were
misreadings of this spec.

The latency argument was false. I wrote that re-authorizing a transcript
each turn would breach §6.5's deadline. §4.1 caps a batch at 256 pairs and
§6.5 makes a page one round of concurrent calls with the floor at the
slowest sibling, not their sum — a four-turn transcript of eight passages
is 32 pairs, one batch, one round, the same floor as a fresh query. A
correct chat is affordable here. The sentence also conceded the point while
denying it: "the only correct version" means a correct version exists.

The staleness argument proved too much. "A chat transcript is a cache of
authorized passages" is equally true of a results tab left open, and of
/documents/{id}, which renders a whole document indefinitely. That is a
fact about rendered pages, so it moves to §3.2's leak list where it applies
to all of them.

What survives is narrower and enforceable: no passage crosses a request, in
a response or a model prompt, without §4.1 in the request that carries it.
Gate 26 asserts it against the prompt builder's input rather than against a
schema — a grep for "transcript" would be a gate written to pass, since the
leak needs no table. Gate 17 gains a literal route allowlist so a chat
route goes red on the way in.

The ruling is now recorded as the choice it is. Decision 14 rests on
decision 5, not decision 3, and is attributed to me with Paul unconfirmed —
QUESTIONS #2. A conversational surface that keeps the invariant is parked
in §12 to be argued, not forbidden by fiat.

Also corrected: "what slice 0 shipped" claimed §8.1's floor when it ships a
subset (no marker, no date, no pagination, and the route is / not /query);
decision 13's "two model ids" is three, and the embedding one costs a
corpus re-embed to swap; and "Paul ruled it need not block" put the
un-owing of the synthesis measurement in his mouth when he only accepted
the tier.

The lesson, and it is the third coat on one failure across §1.4–§1.6: a
preference will always find a rule that seems to compel it. Check the
constraint against the text, not against your memory of the text.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>