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[ci-scan] Add Hard Rule 10 for early exit on no scannable build #7654

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kotlarmilos merged 3 commits into from
Jul 3, 2026
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[ci-scan] Add Hard Rule 10 for early exit on no scannable build #7654

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ci-scan: add Hard Rule 10 for explicit early exit on no scannable build
github-actions[bot] Jul 2, 2026
19d5628
Address review: use documented coverage-line format and print full St…
kotlarmilos Jul 3, 2026
f6f35d4
Trigger report-green pipeline
kotlarmilos Jul 3, 2026
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3 changes: 2 additions & 1 deletion .github/workflows/ci-scan.agent.md
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Expand Up @@ -78,6 +78,7 @@ These invariants are not delegated to the shared file. Honor them even if a shar
7. **All state under `/tmp/gh-aw/agent/`;** each bash call is a fresh subshell.
8. **AzDO REST is anonymous;** stay on `https://dev.azure.com/dnceng-public/public/_apis/build/...`. Follow every rule in [Environment constraints](shared/ci-scan.instructions.md#environment-constraints) (pre-bind URLs, `%24top`, no redirection).
9. **Sanitize every embedded log excerpt** per [Sanitization](shared/ci-scan.instructions.md#sanitization).
10. **Exit immediately on empty build window.** When Step 1 determines no scannable build exists, immediately append one Step 7 coverage line to `/tmp/gh-aw/agent/coverage/MachineLearning-CI.txt` in the documented `<sig-short> <outcome> <reason-if-skipped>` format as `- skipped: <reason>`, print the full Step 7 summary table (the `| total-signatures | issues-filed | reused-existing | skipped-with-reason |` header followed by the `| 0 | 0 | 0 | 1 |` row), emit `noop` with the skip reason, and stop. Do not fetch the AzDO timeline, download task logs, query Helix work items, or execute any step beyond Step 1.

## Step 1 - Select the source build

Expand All @@ -88,7 +89,7 @@ url='https://dev.azure.com/dnceng-public/public/_apis/build/builds?definitions=1
curl -s "$url" | tee /tmp/gh-aw/agent/builds.json | jq -r '.value[] | "\(.id) \(.result) \(.finishTime)"' | head -25
```

If selection yields no scannable build, record the matching skip reason (`stale build window (>14d)`, `no follow-up build yet, defer to next run`, or `no failed build in 7d`) and stop.
If selection yields no scannable build, apply **Hard Rule 10** immediately.

## Step 2 - Walk the timeline

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