lib/review/gold-scorer.mjs held its (file, rule_key) separator as a literal NUL byte
inside a string literal. Git's binary heuristic therefore classed the whole file as
binary. Every diff of the scorer read "Binary files differ", `--numstat` printed "- -",
and plain grep matched nothing in it. The separator is now written as the escape
sequence '\x00', which is the same one-character string at runtime.
Proof that the change is behaviour-neutral:
- A snapshot script recorded every number the scorer produces, before and after:
- the committed run-perfect fixture through the coordinator contract;
- empty, half, spurious (keys containing spaces and colons), duplicated and empty-gold
runs;
- all 9 verdict pairs.
`diff` of the two outputs is empty (141 lines each).
- tests/lib/gold-scorer.test.mjs + tests/lib/gold-eval.test.mjs: 13/13 before and after.
- `git diff --no-index --numstat /dev/null <file>`: the new file reads "89 0" (text); the
old blob, as a control, reads "- -" (binary).
End-state gate D-06: open -> closed (defects 4 -> 3 of 7). Suite 1059 (1057/0/2), run
on a clean export of the index.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Kjell Tore Guttormsen
f1c2c9eb4a