The 2000-character cap was wrong. H3 has no padding, so every prompt token is a
real sequence row and a long prompt is a legitimate thing to want — an enhanced
one especially. Cutting at a fixed length contradicted the token limit the user
had just set.
Length cannot tell "long and detailed" from "stuck". What distinguishes them is
that a model which has stopped writing starts repeating itself, so that is what
is detected now: three occurrences of the same sentence and the prompt is cut
at the first repeat. A long prompt that never repeats is never touched.
The only remaining length bound is the one the user's own token limit already
implies (~4 chars/token), so there is one control rather than two fighting.
Short recurring lines are exempt — "She smiles." legitimately recurs in a shot
list.
Tests: 1690 passed.
digital-garbage
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