Twice on 5 October 2026 a PowerShell job script carried a bash body inside a string, a quote was lost on the way
through PowerShell, and bash refused the body: pc1-cpu-prove.ps1 (first version) reported exit 0 having done
nothing, the 0.3.10 installer job failed in 4 s. tools/amd-prove/check-job-bash.sh covered only its own here-string.
tools/ci/bash-body-check.sh reads every *.ps1 under relay/playbooks/ and tools/, finds each bash body however it is
handed over (bash -c "...", bash -lc '...', bash -c $var, a + concatenation in parentheses, the Start-Process argument
list, a here-string written to a file that is later run with bash), unescapes it the way PowerShell would (backtick
escapes and "" in double-quoted strings, '' in single-quoted strings, here-strings verbatim; $var left as-is, a $(...)
subexpression replaced by ${PS_SUBEXPR}), and runs bash -n on it. One line per body with the file line of the error.
A body it sees but cannot read is "unextractable body" and fails too: a skip would be a hole in the class check.
bash 3.2 compatible; python3 for the extractor.
--self-test runs three fixtures under tools/ci/fixtures/: the correct shapes (8 bodies, must pass), the lost quotes
(the awk apostrophe, a dropped closing quote in a literal and in a variable; must fail with the line), and three
unreadable bodies (must fail). Wired into ci.yml next to the copied-sources check, self-test first. The current tree:
7 inline bodies in 3 playbooks, all parse. packaging/README-ship.md: the job-script rule (body to a file, bash <file>).
Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
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