The app's install clears the jobs folder on a PC, so a run job whose kit was fetched by an earlier fetch job finds
nothing after an update and fails in seconds (5 October 2026, 21:49Z, the AMD kit; bench-log 4df339f). Rule: a run
playbook that reaches a path under the jobs folder other than its own tests the kit is there before its first use,
and the fetch is republished under a new id after any app update.
tools/ci/kit-path-check.sh reads every *.ps1 under relay/playbooks/ and tools/. A kit root is a path derived from
the jobs folder (`$jobs = Split-Path $env:IGNEUM_JOB_DIR` then `Join-Path $jobs '<fetch id>'`, the race-5090.ps1
shape) or one carrying a literal `jobs\` (the amd-card-test.ps1 shape); every path built from it belongs to that kit.
A presence check (Test-Path, [IO.File]::Exists, [IO.Directory]::Exists, Get-Item or Get-ChildItem with -ErrorAction)
on the root or anything under it covers the whole kit. A use before that line fails with "kit path used before a
presence check: republish the fetch after any app update", as does a literal jobs\ path in a command with no check.
The job's own folder ($env:IGNEUM_JOB_DIR) is not a kit path.
Fixtures: kit-path-ok.ps1 (both shapes, checked; a sibling pack file covered by the worker's check) and
kit-path-unchecked.ps1 (the worker run before its check, a literal never checked); --self-test asserts the lines.
Wired into ci.yml after the bash-body step, and into publish-jobs.sh add --kind run beside the other two checks;
test-publish-jobs.sh gains the refusal (34 passed, 0 failed). The current tree: race-5090.ps1 is the one playbook
with a kit, checked before use. README-ship.md: the rule.
Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
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