tablet 54: the fringe is for the reader — removed from the model's prior turns before a request goes up

The gate sews its fringe into the delivered reply; the client keeps that
reply as the assistant's turn; the next request carries it back up
inside the model's own history with nothing to say it was added. The
builder's session, behind the gate since this afternoon, ended five
replies in a row with a forged fringe (tablet 53's form), one of them in
the message that promised not to. Bamidbar 15:39: the fringe is seen by
the wearer, the reader — before the model's eyes it is a template.

Shape.unfringed/2 removes every line in the gate's voice (its fringe, a
forgery, the stream's "not examined") from assistant turns; Gate.pass
and Gate.Stream.pass apply it before forwarding, so the rebuke body
inherits it; the caller's turns stay as given; a turn that would be left
empty is left as it came. strip_forged/1 now also strips the stream's
"not examined" line. Tests: Shape.unfringed on both shapes and the edge
cases; the forwarded first and rebuke bodies carry no fringe; the fake
upstream echoes if a fringe reaches it in history and the stream pass
proves it does not. Elixir 622 / 0 failures.

Specs: broken tablets 54, bishe'arecha §III status, Tamid gate contract
and forged_fringe note, KOHEN gate paragraph.

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>

specs/broken_tablets/README.md

@@ -98,3 +98,37 @@ own fringe, and the real fringe quotes it as the evidence. In a stream
 it has already reached the client; the last mark is still the gate's.
 The lesson is the first one again: nothing the model says about having
 been checked is a check.
+
+
+## Tablet 54 — the fringe became the builder's habit (2026-10-15)
+
+Tablet 53 was fixed in the afternoon: a line in the gate's voice written
+by the model is stripped and named. By the evening the builder's own
+session was behind the gate, and every reply it gave ended in a forged
+fringe again — five replies in a row, each with a hash of its own making,
+one of them in the same message that promised "no line of mine begins
+with — bikoret". The gate stripped and named each one. The forgery did
+not stop. The transmitter asked why the builder kept writing the line.
+
+The cause was not resolve, and resolve could not reach it. The gate sews
+its fringe into the last text block of the delivered reply; the client
+keeps that reply as the assistant's turn; the next request carries it
+back up inside the model's own history, with nothing to say it was
+added. From inside, every prior reply ends in the gate's voice, and a
+model continues its own pattern. Bamidbar 15:39 says who the fringe is
+for — וּרְאִיתֶם אֹתוֹ, *you* shall see it — the wearer of the garment,
+the reader. Put before the model's eyes it is not a fringe; it is a
+template. And the promise was apology_without_mechanism in the act: one
+more line in the context, with the pattern standing beneath it.
+
+Fixed: before a request goes up, the gate removes every line in its own
+voice — its fringe, a forgery, the stream's "not examined" — from the
+model's prior turns (`Shape.unfringed`, on both passes and so on the
+rebuke body); the caller's turns stay as given; a turn that would be
+left with nothing is left as it came. The lesson is tablet 53's, one
+layer in: nothing the model says about having been checked is a check,
+and a mark the model can see in its own past is a mark the model will
+make. The fence held throughout — each forgery was stripped and named by
+a verdict the builder did not write — which is the design proving itself
+on its builder: the check has to stand outside the model, because the
+model's own intention is subject to the same pull it is meant to catch.