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[ci-scan-feedback] Recency-sorted stem search to close open-sibling KBE dedup gap

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2/5
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72/100
issue の種類
バグ
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明確に書かれている
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活発
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github-actions, markdown
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ci-cd

調査の方向性

.github/workflows/shared/create-kbe.instructions.md、特に 69-75 行目の variation 6 を読み、既存の最適な stem の検索がどのように記述されているかを確認します。スキャナーが、作成日時でソートされた同じ stem の最新約 10 件の結果も確認するように手順を更新します。次回のスキャナー実行で、分類、JSON の形状、またはシグネチャの具体性を変更せずに、最近作成されたオープンな sibling を見つけられれば完了です。

索引モデルが issue の本文から書いたものです。

説明

agentic-workflows area-Infrastructure untriaged

Triggering signals

  • KPI tracker #128742 (rubric finding) — the wasm JIT/opt/GuardedDevirtualization/badinlinee signature was re-filed three times in 48h while a predecessor stayed open: #134169 (open 2026-09-18→09-20), then #134292 and #134302 both filed 2026-09-20 with an identical ErrorMessage ("Failed test: JIT/opt/GuardedDevirtualization/badinlinee/badinlinee.cmd"). All three closed completed, so this open-dedup miss never registers in the wrong-closure rate, yet it is a direct driver of the New-KBE burst signal (peak day 8 on 09-20). https://github.com/dotnet/runtime/issues/134292 https://github.com/dotnet/runtime/issues/134302
  • Same pattern recurs on other stems (MsQuic expected-error handshake timeout #134171 → dup of #133645), all closed as automated area-owner dedup with 0 maintainer rejection comments and 0 mis-attributions — the recall gap, not classification, is the fixable defect.

Proposed edits

  • .github/workflows/shared/create-kbe.instructions.md:69-75 (variation 6, "Search for an existing KBE") — after the best-match stem search, re-issue the same stem search sorted created descending and scan the newest ~10 results, so an open same-stem KBE filed by the immediately preceding twice-daily sweep surfaces deterministically instead of being ranked past the first page. Rationale ties directly to the badinlinee triple-refile above.

Expected behavior change

The next scanner run's existing-KBE search will surface a same-stem open sibling that a prior sweep filed only hours earlier, even when GitHub best-match relevance would bury it past the first page of results. This closes the open-dedup miss that let one wasm test signature spawn three separate [ci-scan] KBEs in two days — reducing both duplicate/completed-closed re-files and their contribution to the New-KBE burst outage signal, without touching classification, JSON shape, or signature specificity.

[!NOTE]
This PR description was generated by GitHub Copilot (ci-failure-scan-feedback workflow).

Generated by CI Outer-Loop Failure Scanner — Feedback · opus48 · 687 AIC · ⌖ 18.3 AIC · ⊞ 18.2K · ◷


[!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 36002458532 -n agent -D /tmp/agent-36002458532

# Fetch the bundle into a temporary ref, then update the local branch
git fetch /tmp/agent-36002458532/aw-ci-scan-feedback-recency-sorted-stem-dedup.bundle refs/heads/ci-scan-feedback/recency-sorted-stem-dedup:refs/bundles/create-pr-ci-scan-feedback-recency-sorted-stem-dedup-61416dbd81bf4ff1-7c3d4a9b
git update-ref refs/heads/ci-scan-feedback/recency-sorted-stem-dedup-61416dbd81bf4ff1 refs/bundles/create-pr-ci-scan-feedback-recency-sorted-stem-dedup-61416dbd81bf4ff1-7c3d4a9b
git checkout ci-scan-feedback/recency-sorted-stem-dedup-61416dbd81bf4ff1
# 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-recency-sorted-stem-dedup-61416dbd81bf4ff1-7c3d4a9b

# Push the branch to origin
git push origin ci-scan-feedback/recency-sorted-stem-dedup-61416dbd81bf4ff1

# Create the pull request
gh pr create --title '[ci-scan-feedback] Recency-sorted stem search to close open-sibling KBE dedup gap' --base main --head ci-scan-feedback/recency-sorted-stem-dedup-61416dbd81bf4ff1 --repo dotnet/runtime
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