diff --git a/docs/ISSUES.md b/docs/ISSUES.md
index 029f936d..88e52a17 100644
--- a/docs/ISSUES.md
+++ b/docs/ISSUES.md
@@ -160,9 +160,15 @@ resolution.
 
 ## #345 — Walking angled into a too-steep slope: 100% of input eaten with an UP collision normal, no slide
 
-**Status:** OPEN — HIGH (user-felt, capture-backed). Regression status UNKNOWN:
-step 1 next session is an A/B against the pre-campaign binary (d4e956b4)
-before any code is read for theories.
+**Status:** OPEN — HIGH (user-felt, capture-backed). **A/B COMPLETE, same
+morning: PRE-EXISTING, not a campaign regression.** The pre-campaign binary
+(d4e956b4, built in a throwaway worktree, same recorder, same slope, same
+protocol) shows the identical signature — eleven consecutive 2-second windows
+of sustained ~30 m requested with 0.0% yield (`uphill-AB-precampaign.jsonl`).
+Campaign S is exonerated wholesale; the defect is older and was simply never
+noticed before the user's slope attention this week. Suspect space unchanged
+(the UP-normal zero-displacement step-down-refusal shape leads); theory work
+remains forbidden until the mechanism session instruments it.
 **Filed:** 2026-08-08 morning, from the user's report ("I stop instead of
 sliding") + a directed 45-degree capture.