1 files changed, 33 insertions, 0 deletions
diff --git a/modules/test/test-predictor-accuracy.js b/modules/test/test-predictor-accuracy.js
index 3688b03..74f0fcc 100644
--- a/modules/test/test-predictor-accuracy.js
+++ b/modules/test/test-predictor-accuracy.js
@@ -247,5 +247,38 @@ function ok(name, cond, detail) {
     ok('S3 pending consumed', p._pending.length === 0);
 }
 
+// T. v1 payload carrying an aborted garbage point must not train similarity (2026-10-27)
+{
+    const { p, term, out } = mk();
+    const feats = p._extractFeatures('read the logs');
+    term.fs.fsWriteJSON('/system/metrics/predictor.json', {
+        dataPoints: [{ features: feats, observedDuration: 0.079, observedTurns: 1 },
+                     { features: feats, observedDuration: 30, observedTurns: 3 }],
+        predictions: 2
+    });
+    p._loadFromVFS();
+    ok('T1 legacy aborted point dropped on load', p._dataPoints.length === 1, 'n=' + p._dataPoints.length);
+    const similar = p._findSimilar(p._extractFeatures('read the logs'));
+    ok('T2 similarity ignores the aborted point',
+        similar.length === 1 && similar[0].observedDuration === 30,
+        JSON.stringify(similar.map(s => s.observedDuration)));
+    out.length = 0; p.showStatus();
+    const line = out.find(l => l.includes('Actual executions')) || '';
+    ok('T3 status counts only usable executions', /Actual executions:\s*1\s*$/.test(line.trim()), line.trim());
+}
+
+// U. a lone aborted point cannot floor the next prediction
+{
+    const { p, term } = mk();
+    term.fs.fsWriteJSON('/system/metrics/predictor.json', {
+        dataPoints: [{ features: { hasRead: true }, observedDuration: 0.079, observedTurns: 1 }],
+        predictions: 1
+    });
+    p._loadFromVFS();
+    const pred = p.notePrediction('read the logs', 'test');
+    ok('U1 prediction is not floored by a lone aborted point', pred && pred.floored === false,
+        JSON.stringify(pred && { duration: pred.duration, floored: pred.floored }));
+}
+
 console.log(passes + '/' + (passes + fails) + ' PASS');
 process.exit(fails ? 1 : 0);