From 8a4cb51000469e26ebc20fab6b29af2cda36e699 Mon Sep 17 00:00:00 2001
From: Wolfgang Schoenberger <221313372+wolfiesch@users.noreply.github.com>
Date: Fri, 8 May 2026 13:25:56 -0700
Subject: [PATCH] fix(results): tag unsupported failure explanations

---
 src/excelbench/results/failure_explainer.py | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/excelbench/results/failure_explainer.py b/src/excelbench/results/failure_explainer.py
index d1e2b12..3cc633e 100644
--- a/src/excelbench/results/failure_explainer.py
+++ b/src/excelbench/results/failure_explainer.py
@@ -54,6 +54,7 @@ def explain_diagnostic(
             probable_cause=diagnostic.probable_cause
             or "library/adapter does not implement the requested feature surface",
             next_step="treat as unsupported capability, not a semantic regression",
+            tag="unsupported",
         )
 
     if diagnostic.root_cause_code and diagnostic.suggested_next_step: