diff --git a/scripts/lib/windows-curation.ts b/scripts/lib/windows-curation.ts
index 0eb512458..8d153facf 100644
--- a/scripts/lib/windows-curation.ts
+++ b/scripts/lib/windows-curation.ts
@@ -52,7 +52,7 @@ const WINDOWS_FRAGILE_PATTERNS: Array<{ pattern: RegExp; reason: string }> = [
 // the failure mode is structural rather than detectable via source-file scan.
 export const KNOWN_WINDOWS_INCOMPATIBLE: Array<{ file: string; reason: string }> = [
   // Like test/paid-rerun.test.ts (excluded by pattern), it replays a gate capture through the paid lane's --report and --rerun-plan CLI.
-  { file: 'test/credential-rejection.test.ts', reason: 'replays run 39696775546 through the --report and --rerun-plan CLI of the paid lane, which runs only on Linux CI; on windows-latest that CLI stops with EINVAL in open() before it reads the capture' },
+  { file: 'test/credential-rejection.test.ts', reason: 'replays run 39696775546 through the --report and --rerun-plan CLI of the paid lane, which runs only on Linux CI; on windows-latest that CLI exits 1 with EINVAL in open() (windows-free-shard run 39982914852)' },
   // Field list 2, W11: the review-voice install is a POSIX launcher contract, exercised end to end on Linux and macOS.
   { file: 'test/capy-review-voice.test.ts', reason: 'copies the checkout with tar -C into the temp root (GNU tar reads a D: path as a remote host) and launches the bash --for review-voice installer with a colon-joined GSTACK_LAUNCH PATH' },
   // C-pregate. Since fix wave PR 5 (item 10b) test/helpers/pregate-fixture.ts and restamp-fixture.ts