[ci-scan-feedback] Strip script-runner/exit-code suffixes in KBE dedup search to cut same-test duplicates

[github-actions]

Triggering signals

• Scanner wrong-closure rate 32.1% (9/28) 🔴 over the last 30d — all 9 wrong closures are duplicate, no not_planned. These are same-test-path re-files, not misclassifications:
  • [ci-scan] Test failure: GC/API/GC/GetGeneration/GetGeneration.dll fails under interpreter on osx-arm64 #131743 GC/API/GC/GetGeneration/GetGeneration.dll → dup of [ci-scan] Test failure: GC/API/GC/GetGeneration/GetGeneration.dll fails under interpreter (post-fix recurrence) #131914 (same test, different leg) — [ci-scan] Test failure: GC/API/GC/GetGeneration/GetGeneration.dll fails under interpreter on osx-arm64 #131743
  • [ci-scan] Test failure: JIT/Methodical/Arrays/misc/arrres_il_r crashes (abort, exit 134) #131744 JIT/Methodical/Arrays/misc/arrres_il_r/arrres_il_r (exit 134) → dup of [ci-scan] Test failure: JIT/Methodical/Arrays/misc/arrres_il_r/arrres_il_r.cmd #131628 (...arrres_il_r.cmd, different leg) — [ci-scan] Test failure: JIT/Methodical/Arrays/misc/arrres_il_r crashes (abort, exit 134) #131744
  • [ci-scan] Test failure: GC/API/Refresh/Refresh/Refresh fails on gc-standalone (exit 101) #131998 GC/API/Refresh/Refresh/Refresh (exit 101) → dup of [ci-scan] Test failure: GC/API/Refresh/Refresh/Refresh.cmd assertion Expected 100 Actual 101 #130828 (...Refresh.cmd, same leg) — [ci-scan] Test failure: GC/API/Refresh/Refresh/Refresh fails on gc-standalone (exit 101) #131998
• Rubric finding: variation 6 of the existing-KBE search strips underscore-delimited platform/bit-width suffixes but not the trailing .cmd/.dll script-runner suffix or the exit-code/signal descriptor that distinguish otherwise-identical coreclr slash-delimited runtime-test paths, so the same test is filed once per (leg × exit-code × suffix) permutation.

Proposed edits

• create-kbe.instructions.md:53-64 — extend variation 6 to also strip a trailing script-runner suffix (.cmd/.dll/.sh/.exe) and exit-code/signal descriptor (exit 134, exit 101, SIGABRT) from coreclr slash-delimited test paths and search the bare stem, with the Refresh/arrres_il_r cases as worked examples. Directly targets the 9 duplicate closures.
• create-kbe.instructions.md:66-68 — update the "only strip the specific ... suffixes" caveat to include the new script-runner and exit-code/signal suffixes, keeping it consistent with variation 6.

Expected behavior change

The next scanner run will resolve .../Refresh/Refresh/Refresh and .../Refresh/Refresh/Refresh.cmd (and the same test under different exit codes / legs) to a single existing KBE instead of filing a fresh duplicate, cutting the same-test-path duplicate closures that drove the 30d wrong-closure rate to 32%.

Note

AI/Copilot-generated (ci-scan-feedback).

Generated by CI Outer-Loop Failure Scanner — Feedback · opus48 · 652.2 AIC · ⌖ 24 AIC · ⊞ 19.9K · ◷

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Note

This was originally intended as a pull request, but the git push operation failed.

Original error: The process '/usr/bin/git' failed with exit code 1

Workflow Run: View run details and download bundle artifact

The bundle file is available in the agent artifact in the workflow run linked above.

To create a pull request with the changes:

# Download the artifact from the workflow run
gh run download 31495495649 -n agent -D /tmp/agent-31495495649

# Fetch the bundle into a temporary ref, then update the local branch
git fetch /tmp/agent-31495495649/aw-ci-scan-feedback-dedup-suffix-strip.bundle refs/heads/ci-scan-feedback-dedup-suffix-strip:refs/bundles/create-pr-ci-scan-feedback-dedup-suffix-strip-26c269fb50fbeb2b-631ef2eb
git update-ref refs/heads/ci-scan-feedback-dedup-suffix-strip-26c269fb50fbeb2b refs/bundles/create-pr-ci-scan-feedback-dedup-suffix-strip-26c269fb50fbeb2b-631ef2eb
git checkout ci-scan-feedback-dedup-suffix-strip-26c269fb50fbeb2b
# Ensure the working tree matches the updated branch
git reset --hard
# Remove the temporary bundle ref
git update-ref -d refs/bundles/create-pr-ci-scan-feedback-dedup-suffix-strip-26c269fb50fbeb2b-631ef2eb

# Push the branch to origin
git push origin ci-scan-feedback-dedup-suffix-strip-26c269fb50fbeb2b

# Create the pull request
gh pr create --title '[ci-scan-feedback] Strip script-runner/exit-code suffixes in KBE dedup search to cut same-test duplicates' --base main --head ci-scan-feedback-dedup-suffix-strip-26c269fb50fbeb2b --repo dotnet/runtime

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