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@@ -304,8 +304,8 @@ A row is dropped if the positive side text is shorter than 30 characters.
 - Pair configs: `pos` length >= 30 required
 - Hard-negative configs: `pos` length >= 30 required
 
-3. Hard-negative validity constraint
-For hard-negative configs, at least one valid negative must remain after normalization (`min_negs = 1`).
+3. Hard-negative size constraint
+For hard-negative configs in this release, each row keeps exactly seven negatives after normalization (`len(negs) = 7`, equivalent to `min_negs = 7`).
 
 4. Query-level deduplication
 Within each subset split, rows are grouped by exact `query` string.