diff --git a/server/skillhub-domain/src/main/java/com/iflytek/skillhub/domain/skill/validation/SkillPackagePolicy.java b/server/skillhub-domain/src/main/java/com/iflytek/skillhub/domain/skill/validation/SkillPackagePolicy.java
index eab8d2e2..6ace64ad 100644
--- a/server/skillhub-domain/src/main/java/com/iflytek/skillhub/domain/skill/validation/SkillPackagePolicy.java
+++ b/server/skillhub-domain/src/main/java/com/iflytek/skillhub/domain/skill/validation/SkillPackagePolicy.java
@@ -64,6 +64,15 @@ public final class SkillPackagePolicy {
             throw new IllegalArgumentException("Package entry path must be normalized: " + rawPath);
         }
 
+        // Normalize SKILL.md basename case-insensitively
+        int lastSlash = canonical.lastIndexOf('/');
+        String fileName = lastSlash >= 0 ? canonical.substring(lastSlash + 1) : canonical;
+        if (fileName.equalsIgnoreCase(SKILL_MD_PATH)) {
+            canonical = lastSlash >= 0
+                    ? canonical.substring(0, lastSlash + 1) + SKILL_MD_PATH
+                    : SKILL_MD_PATH;
+        }
+
         return canonical;
     }