docs: close mixed-traffic path after short failure

1 files changed, 10 insertions, 0 deletions

diff --git a/MIXED_TRAFFIC.md b/MIXED_TRAFFIC.md
index 0f14e05..4852ef0 100644
--- a/MIXED_TRAFFIC.md
+++ b/MIXED_TRAFFIC.md
@@ -119,6 +119,16 @@ The accuracy gaps and same-state alignment rotation are conjunctive: clipping
 an unstable raw update is not enough. MT-1 failure closes the branch without a
 weaker traffic ratio. A pass opens MT-2 but leaves the reviewer score at 5/10.
 
+MT-1 fails. All three clean-revision records become nonfinite during epoch 1
+and end at 10.00% validation accuracy with NaN loss. Thus innovation does not
+separate from either raw control at the frozen four-to-one intervention. The
+initial layer-ratio error is only `4.77e-7`, neutral warmup leaves a traffic
+residual ratio of `0.139942`, all conditions use zero task-loss queries, and
+each costs `1.3271x` the epoch-20 BP MAC reference. Calibration, warmup, query,
+and cost invariants therefore pass, but they do not rescue the failed finite,
+accuracy, alignment, tracking, or norm checks. MT-2 and MT-3 remain untouched;
+the branch closes without changing traffic strength or predictor schedule.
+
 ## MT-2: frozen full validation gate
 
 Copy MT-1 exactly for 200 epochs. The three jobs remain seed 0 and do not touch