A reader and writer for the circuit text and the detector error model text
that keep every instruction's tag, its arguments as written and every kind of
target (records, Pauli targets, inverted results, sweep bits, products),
blocks as blocks. The frame simulator now reads through it: tags reach the
mechanisms their noise makes, observables take Pauli targets in sampling and
in the model, detectors keep their coordinates. A model is written with its
coordinates, tags and each decomposed mechanism's parts, and read back to the
same model, blocks unrolled and detector shifts applied. A conformance set of
circuits and models the crate writes and of hand-written ones, each held to
its counts, its model and a byte-for-byte round trip, with the refusals.
Co-Authored-By: Claude Opus 5.5 <[email protected]>
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