diff --git a/server/skillhub-app/src/main/java/com/iflytek/skillhub/compat/ClawHubCompatAppService.java b/server/skillhub-app/src/main/java/com/iflytek/skillhub/compat/ClawHubCompatAppService.java
index b6fc5b1f..74f96dde 100644
--- a/server/skillhub-app/src/main/java/com/iflytek/skillhub/compat/ClawHubCompatAppService.java
+++ b/server/skillhub-app/src/main/java/com/iflytek/skillhub/compat/ClawHubCompatAppService.java
@@ -30,6 +30,7 @@ import org.slf4j.MDC;
 import org.springframework.stereotype.Service;
 import org.springframework.util.StringUtils;
 import org.springframework.web.multipart.MultipartFile;
+import org.springframework.web.util.UriComponentsBuilder;
 
 /**
  * Compatibility-focused application service that keeps ClawHub transport logic
@@ -131,9 +132,7 @@ public class ClawHubCompatAppService {
 
     public String downloadLocationByPath(String canonicalSlug, String version) {
         SkillCoordinate coord = mapper.fromCanonical(canonicalSlug);
-        return "latest".equals(version)
-                ? "/api/v1/skills/" + coord.namespace() + "/" + coord.slug() + "/download"
-                : "/api/v1/skills/" + coord.namespace() + "/" + coord.slug() + "/versions/" + version + "/download";
+        return buildDownloadLocation(coord, version);
     }
 
     public String downloadLocationByQuery(String slug,
@@ -141,9 +140,28 @@ public class ClawHubCompatAppService {
                                           String userId,
                                           Map<Long, NamespaceRole> userNsRoles) {
         SkillCoordinate coord = resolveQueryCoordinate(slug, userId, userNsRoles);
-        return "latest".equals(version)
-                ? "/api/v1/skills/" + coord.namespace() + "/" + coord.slug() + "/download"
-                : "/api/v1/skills/" + coord.namespace() + "/" + coord.slug() + "/versions/" + version + "/download";
+        return buildDownloadLocation(coord, version);
+    }
+
+    /**
+     * Builds the redirect Location for a download.
+     *
+     * <p>
+     * Each path segment is percent-encoded, because a non-ASCII slug (for example a
+     * Chinese skill name) cannot be written into the HTTP {@code Location} header as-is:
+     * Tomcat encodes header values as ISO-8859-1 and drops the header when a character
+     * falls outside 0-255, which breaks the ClawHub CLI download. Using
+     * {@code pathSegment(...)} keeps the '/' separators literal while encoding the
+     * segment contents.
+     */
+    private String buildDownloadLocation(SkillCoordinate coord, String version) {
+        UriComponentsBuilder builder = UriComponentsBuilder.fromPath("/api/v1/skills")
+                .pathSegment(coord.namespace(), coord.slug());
+        if (!"latest".equals(version)) {
+            builder.pathSegment("versions", version);
+        }
+        builder.pathSegment("download");
+        return builder.encode().toUriString();
     }
 
     private SkillCoordinate resolveQueryCoordinate(String slug,
diff --git a/server/skillhub-app/src/test/java/com/iflytek/skillhub/compat/ClawHubCompatAppServiceTest.java b/server/skillhub-app/src/test/java/com/iflytek/skillhub/compat/ClawHubCompatAppServiceTest.java
index c5921f59..2670031c 100644
--- a/server/skillhub-app/src/test/java/com/iflytek/skillhub/compat/ClawHubCompatAppServiceTest.java
+++ b/server/skillhub-app/src/test/java/com/iflytek/skillhub/compat/ClawHubCompatAppServiceTest.java
@@ -77,4 +77,45 @@ class ClawHubCompatAppServiceTest {
 
         assertThat(location).isEqualTo("/api/v1/skills/team-a/my-skill/download");
     }
+
+    @Test
+    void downloadLocationByQuery_percentEncodesNonAsciiSlug() {
+        // A non-ASCII slug (e.g. a Chinese skill name) must be percent-encoded, otherwise
+        // Tomcat drops the Location header (ISO-8859-1 only) and the ClawHub CLI download fails.
+        Namespace namespace = new Namespace("global", "Global", "owner-1");
+        Skill cjkSkill = new Skill(1L, "需求", "owner-1", SkillVisibility.PUBLIC);
+        CompatSkillLookupService.CompatSkillContext context = new CompatSkillLookupService.CompatSkillContext(
+                namespace,
+                cjkSkill,
+                Optional.empty()
+        );
+
+        when(compatSkillLookupService.findByLegacySlug("需求")).thenReturn(context);
+        when(compatSkillLookupService.canAccess(cjkSkill, null, Map.of())).thenReturn(true);
+
+        String location = service.downloadLocationByQuery("需求", "20260707.025847", null, null);
+
+        assertThat(location)
+                .isEqualTo("/api/v1/skills/global/%E9%9C%80%E6%B1%82/versions/20260707.025847/download");
+        // The header value must be writable as ISO-8859-1 (all bytes in 0-255).
+        assertThat(java.nio.charset.StandardCharsets.ISO_8859_1.newEncoder().canEncode(location)).isTrue();
+    }
+
+    @Test
+    void downloadLocationByQuery_includesVersionSegmentForAsciiSlug() {
+        Namespace namespace = new Namespace("team-a", "Team A", "owner-1");
+        Skill publicSkill = new Skill(1L, "my-skill", "owner-1", SkillVisibility.PUBLIC);
+        CompatSkillLookupService.CompatSkillContext context = new CompatSkillLookupService.CompatSkillContext(
+                namespace,
+                publicSkill,
+                Optional.empty()
+        );
+
+        when(compatSkillLookupService.findByLegacySlug("my-skill")).thenReturn(context);
+        when(compatSkillLookupService.canAccess(publicSkill, null, Map.of())).thenReturn(true);
+
+        String location = service.downloadLocationByQuery("my-skill", "20260707.025847", null, null);
+
+        assertThat(location).isEqualTo("/api/v1/skills/team-a/my-skill/versions/20260707.025847/download");
+    }
 }