Release run 30464288732 was blocked by the VirusTotal gate: three linux-amd64
binaries flagged 1/62 by Microsoft's Wacatac.B!ml -- fully stripped binaries
(0 symbols, verified on the exact artifacts), the state that scanned clean in
the two previous cycles. Meanwhile a real Defender endpoint (engine
1.1.26060.3008, signatures 1.455.410.0 updated the same day, RTP on) scans
the identical bytes clean. Four cycles of evidence now say the same thing:
this verdict is an unstable ML decision boundary, not a property of the code,
and no build-side lever moves it durably -- stripping, downloader removal and
metadata changes each "worked" only until a later build flipped it back.
So stop treating the flag as buildable-away and verify it honestly instead:
check-virustotal.sh may downgrade BLOCKED to TOLERATED only when ALL hold:
- pre-release version (-rc./-pre/-alpha/-beta); stable releases never
- every failing file flagged by exactly ONE engine
- that engine is Microsoft and the verdict ends in "!ml" (never a
signature name)
- hash-pinned Defender ENDPOINT evidence is attached to the draft release
(defender-endpoint-verification.txt) proving Microsoft's shipping
product, signature-updated at scan time, reports the exact bytes clean
av-endpoint-verify.sh (new) produces that evidence: downloads the draft
assets, scans them on the local Windows VM endpoint, refuses to attest if
RTP is off or Defender itself detects, uploads the hash-pinned result.
The gate prints the exact command when evidence is missing; re-running the
failed verify job does not rebuild, so the bytes stay fixed.
append-vt-notes.sh (new, extracted from inline YAML per venue-parity) then
renders the release-notes table honestly: a tolerated file reads "1/62 ML
false positive, endpoint-verified clean", never "0 detections".
tests/test_vt_gate_tolerance_contract.sh pins all nine decision directions
against a stubbed VT API and release store -- clean pass, stable-never,
missing/stale/DETECTED evidence, signature-named verdict, non-Microsoft
engine, multi-engine -- so the tolerance provably fails closed.
Also: release.yml gains skip_tests for re-releases of an already test-green
tree (build/smoke/soak/verify always run; lint failures still gate via
!cancelled() && !failure()).
Signed-off-by: Martin Vogel <martin.vogel.tech@gmail.com>
Martin Vogel
48fc942418